Drag Bike - Plan B

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Off Road
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Re: Drag Bike - Plan B

#646 Post by Off Road » Sat Jul 01, 2023 3:42 am

Sunday, June 25/23 – CMDRA Race #2 – Rimby, AB

A great day to be at the track. Hot, sunny and nothing but blue sky.
At the riders meeting, they announced that we would get 2 Test and Tune runs, before we stated the elimination rounds.
Great, I can use the practice.

12:03 pm, Test and Tune.
I dropped the clutch and the bike took off. It was awesome. 7.918 seconds at 88.9 mph.
That time is 0.08 seconds faster than my previous best time at this track
And it’s only 0.047 seconds slower than my best ever 1/8 mile time.
60’ time of 1.90 sec and 1/8 mile time of 7.918 sec. @ 88.9 mph.

12:56 pm, Test and Tune.
I dropped the clutch; the bike took off, and I had an average run.
60’ time of 2.08 sec and 1/8 mile time of 8.292 sec. @ 88.2 mph.

On my second run, I had a poor launch. Not horrible, but not ideal.
The bad launch made my 60’ time almost 0.2 sec slower, which made my 330’ time 0.3 sec slower, which made my 1/8 mile time 0.4 sec slower.
The whole run depends on the launch.

And practice time was over. It was time to pick a dial-in and go racing.

On Saturday, I made 7 runs down the track.
I had the big wheelie on the last one so it doesn’t mean much for time.
On 2 of them, the bike had a big stumble, and ran the 1/8 mile in around 8.45 seconds.
On 3 of them, the bike had a small cough, and ran the 1/8 mile between 8.2 and 8.3 seconds.
And I had 1 pretty clean pass and did the 1/8 mile in 8.11 seconds.
When I went to bed on Saturday night, I was thinking of picking a dial-in time of 8.1 seconds.

Then on Sunday, I make the freak run of 7.92 seconds.
On my 2nd test and tune run on Sunday, I had a time of 8.292 seconds.
Kinda funny, because the average time of my 6 good runs on Saturday, was 8.292 seconds.
The last time I was in Rimby, I said
Off Road wrote: Thu Jun 15, 2023 12:13 am My best time of the day was 8.27 seconds.
...I thought that the bike was quicker than 8.27, but I wasn’t feeling an 8.0 run, so I picked a dial-in time of 8.15 seconds and went racing.
...I really should have used my fastest Qualifying time (8.27 sec) as my dial-in time.
This time I knew the bike would run 7.9 sec., but that was at noon.
How’s it going to run in a couple of hours, when the temperature increases, and we get to the Eliminations?

When it came time to write a number on the bike, I knew in my heart that it could run 8.0.
But, history shows that it’s more likely to run 8.2.

Damn the torpedoes, I picked a dial-in at 8.05 seconds for the Street class.
I ran the 1/8 mile in 8.06 seconds @ 89.1 mph. Whoop, Whoop.

Now that’s how you pick a dial-in. :smt023
I am the man. Not. :smt012
I lost that race because I had an incredibly slow reaction time of 0.433 seconds. WTF?
That time was more than twice as long as my next worst reaction time. :smt011

Well, that was disappointing, but I had no time to dwell on it, because I was sitting in the staging lane waiting to make the elimination run for Hot Twin.
I left my dial-in at 8.05 and was racing a Harley that had a dial-n of 8.25, which meant that his light turned green before mine.
I staged the bike, and as I’m sitting there, waiting for the light to turn green, I catch a glimpse of a Harley front wheel coming up into my view.
An instant later, my light goes green and I’m off.
I passed the Harley, before shifting into 2nd gear. I shifted to second, pinned the throttle, waited for the shift light and then shifted to 3rd.
I was out in front, and didn’t want to break out, so I didn’t take it all the way to redline in 3rd gear.
I shifted to 4th, pinned the throttle for a second, and then started to roll off and coasted across the line.
I was a bit surprised, and a tad miffed, when I saw the win light come on for my opponent.

Despite my efforts to slow the bike down, I still went to fast and broke out.
I had my best 60’ time of the weekend, and another 7 second 1/8 mile time.
60’ time of 1.889 sec and 1/8 mile time of 7.968 sec. @ 87.5 mph.

In the last 5 years of racing at this track, I’ve only had one 7 sec. run.
Then, on one day, I have two 7 second runs. Damn.

So, I went to the track to test my racing skills, and found them to be lacking. :smt005
I picked a great dial-in time for the 1st race, and lost because I was sleeping when the light turned green. [smilie=ext_sleep.gif]
Should have won the 2nd race because I was waaay out in front, but I wasn’t smart enough to back off the throttle. :smt021
But, winners make rounds, and losers make excuses. :smt003

I’m looking forward to the race in Edmonton, next weekend.
The CMDRA is part of large NHRA event that is happening.
It’ll be fun, but it’s not going to be cheap. More than twice as much as it cost at Rimby.
But, the prize money is also much bigger, and they have a payout for the Final, and the Semi-final races.
If we get 12 or 16 entries in each of my classes, like we did at the previous races, then 1st place in each class would be $1200 to $1500.

Ya, I could use some of that. And all I have to do is not fuck up. :smt003

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Re: Drag Bike - Plan B

#647 Post by JonW » Sun Jul 02, 2023 8:34 pm

Brilliant write up, always makes me smile! :D
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Re: Drag Bike - Plan B

#648 Post by kpke » Sat Jul 08, 2023 10:28 am

Thanks for more great RZ posts. Hope you had great races on your next outing.

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Re: Drag Bike - Plan B

#649 Post by Off Road » Sun Jul 16, 2023 2:40 am

So, I’ll start this post by saying that I’m scum. I still don’t have a way to post pictures.
The best I can do at this time is links to the pictures, so you’ll have to make a few extra mouse clicks.
Sorry.

The good news is that the links are to some really great pictures.
Way better the crappy ones that I used to post.

We raced in Edmonton last weekend, but before I get to that, I’d like to tell you about Ken, the CMDRA photographer.
I’ve got to know him pretty well over the last year, and he’s mounted a camera on the RZ a couple of times.
Ken has a passion for photography; the same way most of us, on the forum, have a passion for RZ’s.
When I asked him how many pictures he takes on a weekend, he said it’s usually between 10 and 11 Thousand pictures.
Then he goes through them, picks the best 200 or 300, and posts them on the CMDRA page.
That takes a bit of commitment.

Ken’s an older fellow and grew up with 2 strokes, so he thinks it’s pretty cool to see one at the track.
He likes taking pics of the RZ, because the front wheel usually comes off the ground, and he thinks it makes for a good picture.

Ken will get an idea for a picture, the ‘perfect shot’, and will go to great lengths to capture what he sees in his mind.
In Mission, he wanted a close up picture of a Pro Extreme bike, at the exact moment the parachute is fully deployed.
It’s hard to capture that image when the bike is passing you at 200+ mph, even when you using a camera that shoots 16 frames/second.
He walked to the far end of the track every time the Pro Extreme bikes ran, (5 times, over 2 days), before he got the picture he wanted.

https://www.facebook.com/photo/?fbid=13 ... 7347471506

In Edmonton, he had several pictures that he wanted to get:
1 – Eyeballs at the 1/8 mile, when the bikes are going 100+ mph.
My friend Don on his H2.

https://www.facebook.com/photo/?fbid=13 ... 7347471506

https://www.facebook.com/photo/?fbid=13 ... 7347471506

2 – Big smoky burnouts

There are 2 guys in the CMDRA who do really cool burnouts,
They’ll pitch the bike sideways and lay the bike down so that they are on the very edge of the tread, and then swing it in the other direction and lay it down.
Looks cool, but it’s definitely not as easy as they guys make it look.
I’ve tried doing it a bit, but I only swing it back and forth about 6” off center, in each direction, because anything more than that gets scary.
Rob and Adam will step it out 1 or 2 feet.
Adam at Mission

https://www.facebook.com/photo/?fbid=13 ... 7347471506

Adam at Mission again.
Out of the 200+ pictures that Ken has posted from Mission, I think this one is my favorite.
Second gear burnout. Tire doing 100+ mph. Bike stepped out to the side. Only 1 hand on the bars.
The other is pointing at the photographer. And a look that says, You’re next, buddy.

https://www.facebook.com/photo/?fbid=13 ... 7347471506

In Rimby, I raced my friend Logan, on his Harley.
He pulled a big wheelie and I should have won, but went too fast and broke out.
I guess the Rimby wheelie didn’t scare him too much, because he did the same thing in Edmonton.
I laughed when I saw this picture. The wheel’s up, but his cowboy boots are still parallel to the ground.

https://www.facebook.com/photo/?fbid=13 ... 7347471506

And for some reason, not 100% sure why, I really liked this picture.
That's a good looking animal.

https://www.facebook.com/photo/?fbid=13 ... 7347471506

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Re: Drag Bike - Plan B

#650 Post by Off Road » Sun Jul 16, 2023 2:41 am

Ken also posted a few pictures of the RZ in action.
Lights green. Bike's moving. My feet are almost on the pegs.

https://www.facebook.com/photo/?fbid=13 ... 7347471506

Thirty feet out. Getting ready to shift.

https://www.facebook.com/photo/?fbid=13 ... 7347471506

Here I am at the 1/8 mile.
You can’t see my eyeballs, because of the tinted visor, which I need on bright, sunny days.
And I’m only going 87 mph, which is pretty slow compared to most of the bikes.
But, I am wearing my new, color matched, RFX1 gloves, so I look good. :smt003

https://www.facebook.com/photo/?fbid=13 ... 7347471506

I previously posted this link, but it’s a great picture of what it looks like when things go wrong.

https://www.facebook.com/photo/?fbid=13 ... 7347471506

And finally, my favorite RZ picture from Edmonton. This is what it looks like when things go right.
I’m behind at this moment, but that’s because my opponent had a 0.12 second head start.
The RZ was doing way better at the finish line.
Unfortunately, the photographer wasn’t able to get picture of that.

https://www.facebook.com/photo/?fbid=13 ... 7347471506

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Re: Drag Bike - Plan B

#651 Post by kpke » Sun Jul 16, 2023 9:47 am

Hats off to Ken the photographer. Those are great pics. Thanks for sharing!!!

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Re: Drag Bike - Plan B

#652 Post by JonW » Thu Jul 20, 2023 1:29 am

Im with Ken... well both Ken's really... and you also Steve... Great info and pics!
80 XT500 Supermoto!
81 RD350LC Resto
82 RD421LC Hybrid
82 RD350LC decapitation project
82 RD250LC JDM '251LC' YPVS
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84 RZ500 Resto
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Re: Drag Bike - Plan B

#653 Post by Off Road » Sun Jul 30, 2023 1:20 am

Saturday, July 8/23 – CMDRA Race #3 – Edmonton, AB

A great day to be at the track. Hot, sunny and nothing but blue sky.
When I don’t race for a couple of weeks, it seems like I forget how to ride a motorcycle.
Every time I go to the track, my first pass is always a clusterf*ck. And Edmonton was no exception.
Unfortunately, there was no test and tune session in Edmonton, so I screwed up in my 1st Qualifying run for the Hot Twin class.
And since this was an NHRA, Div. 6 event, I screwed up in front of 300 or 400 people.

I staged the bike and brought it up on the rev limiter (6700rpm).
The clutch dragged a bit and the bike inched forward a little, and then a little more, and then a little more.
When I saw the yellow lights, I dropped the clutch.
The clutch instantly locked up, the bike shot forward; I got a Red Light, and then pulled a big wheelie.
I chopped the throttle, and after the front wheel slammed bang back onto the pavement, I wacked the throttle and I carried on.
Ooops. My bad.
60 Foot . – 2.44 sec
330 Foot – 5.84 sec
1/8 mile – 8.64 sec @ 88.6 mph
1/4 mile – 13.27 sec @ 104.6 mph


My 1st qualifying run in Street was much better. Still a long way from awesome, but definitely better.
60 Foot . – 2.01 sec
330 Foot – 5.38 sec
1/8 mile – 8.22 sec @ 86.3 mph
1/4 mile – 12.88 sec @ 103.7 mph



The 2nd round of qualifying was an improvement over the 1st round.
My 60’ times were under 2 seconds and my 1/4 mile times were within 0.06 seconds of each other.

Round 2 of Qualifying in Hot Twin Class.
60 Foot . – 1.97 sec
330 Foot – 5.30 sec
1/8 mile – 8.14 sec @ 85.9 mph
1/4 mile – 12.86 sec @ 101.7 mph


Round 2 of Qualifying in Street Class.
60 Foot . – 1.99 sec
330 Foot – 5.37 sec
1/8 mile – 8.20 sec @ 86.5 mph
1/4 mile – 12.92 sec @ 101.2 mph



In the 3rd round of Qualifying, I’m not quite sure what went wrong in the Hot Twin class.
My 60’ time was faster than in my Street run. My 330’ was only 0.02 sec. slower than the Street run.
But, my 1/8 mile time was a whole tenth of a second slower, which made my 1/4 mile time 0.1 second slower.

Round 3 of Qualifying in Street Class.
60 Foot . – 2.06 sec
330 Foot – 5.39 sec
1/8 mile – 8.21 sec @ 86.0 mph
1/4 mile – 12.91 sec @ 102.1 mph


Round 3 of Qualifying in Hot Twin Class.
60 Foot . – 2.04 sec
330 Foot – 5.41 sec
1/8 mile – 8.31 sec @ 85.4 mph
1/4 mile – 13.02 sec @ 102.7 mph



Saturday night, after a few wobbly pop, I reviewed my time slips and thought about a Dial-In time, for tomorrow’s races.
After the disastrous 1st pass down the track, I had runs of 12.86, 12.88, 12.91, 12.92 and 13.02 seconds.

On one hand, I’m still amazed that I can make 5 passes down the track and the difference between the fastest and slowest run, is only 0.16 seconds,
which is less time than it takes to blink.
On the other hand, if I run 0.16 seconds off my Dial-In time in tomorrow’s race, I’m f*cked.

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Re: Drag Bike - Plan B

#654 Post by Off Road » Sun Jul 30, 2023 1:20 am

Sunday, July 9/23 – CMDRA Race #3 – Edmonton, AB

A great day to be at the track. Hot, sunny and nothing but blue sky.

The CMDRA bike classes were just a small part of the NHRA program in Edmonton.
Although, the Pro Fuel (Nitro) Harleys, and the Pro Xtreme bikes did run in the big show on Friday and Saturday nights.
Since we didn’t have a test and tune session on Saturday, we got a 4th round of Qualifying on Sunday, around noon-ish
I don’t remember what I did wrong in the Hot Twin run, but it must have happened on the launch.
My 60’ and 330’ and 1/8 mile times were over 0.1 sec slower than they should have been.
But, I had good mph at the 1/8 mile, so I made up a bit of time between the 1/8 to the 1/4 mile.

Round 4 of Qualifying in Street Class.
60 Foot . – 2.00 sec
330 Foot – 5.34 sec
1/8 mile – 8.18 sec @ 86.3 mph
1/4 mile – 12.90 sec @ 101.6 mph


Round 4 of Qualifying in Hot Twin Class.
60 Foot . – 2.12 sec
330 Foot – 5.49 sec
1/8 mile – 8.31 sec @ 87.1 mph
1/4 mile – 12.97 sec @ 102.9 mph


So, my best run of the day, in the cool morning air, was 12.90 seconds.
First round of Eliminations was around 2:00 ish, (don’t wear a watch and don’t have a cell phone). :smt003
The air was much warmer and I didn’t think the bike would run 12.8’s.

I picked a Dial-In time of 12.90 seconds and went racing.

In the Street class, I was racing Jay, on his R1. Unfortunate for me, because Jay’s a really good racer.
The run started out great. Nice launch. The engine pulled hard. I was flying.
Then I bobbled the shift from 5th to 6th gear and Jay flew past me at the line for the win.
And Off Road racks up another loss, because he makes a rookie mistake, again. Dumb ass.

Round 1 of Eliminations in Street Class.
60 Foot . – 2.04 sec
330 Foot – 5.38 sec
1/8 mile – 8.21 sec @ 86.0 mph
1/4 mile – 12.98 sec @ 100.6 mph



At the Edmonton track, they no longer give you a paper Time Slip after your run.
Instead, you need to download the racetrack’s app on your phone, in order to get the race results.
Great system, unless you don’t have a cell phone. :smt012

So, after I race in Street, I go back to staging and get in line for Hot Twin.
But, I don’t know how fast the bike ran. Was it too fast, too slow, close to my Dial-In? :smt102
All I could do was keep the same Dial-In time and hope for the best.

In Hot Twin, I was racing a guy on a Harley Sportster and his light turned green 0.1 seconds before mine, so I had to hunt him down.
It was a great race. Really close. Wheel to wheel at the finish line.
And when it was over, I had no idea who won.

After the runs, I borrow my friend’s phone to check out my times. The first time slip to come up was for Street.
Damn, I was on a good run. Even with the mistake, I was only 0.08 seconds off my dial in.

After recording the Street information, I scrolled through to the Hot Twin race.
Yippee, I won, but it was really close. My margin of victory was 0.021 seconds.
Then as I’m recording the information, I have a WTF moment.
I Dialed-In a time of 12.90 seconds and my time for the race was 12.89 seconds.
I should have broke out and lost.
I checked to see if my opponent got a red light. If he did, then he was disqualified first and my break out wouldn’t matter.
No, he didn’t get a red light so what the hell. After a few minutes of confusion, I saw the problem.

I wrote a Dial-In time of 12.90 on my red gas tank, in large, bright, yellow numbers.
The people in the race tower made a mistake, and posted my Dial-In time as 12.09 seconds. (I wish)
It was my fault, because it’s the racers responsibility to make sure that the correct Dial-In time is posted on the timing board, before they stage their bike, and I didn’t check.
So, I actually ran 0.8 seconds slower than my posted time and didn’t break out. Sometimes it’s better to be lucky, than good.

The incorrect Dial-In time does explain a lot about that race.
I knew the guy on the Harley was going to launch first, but by the time I got my green light, reacted, and started moving, he was 5 or 6 bike lengths in front of me.
My first thought was that I had a really, really slow reaction time.
No wonder it took the entire track to catch him, he had a1 second head start.

Round 1 of Eliminations in Hot Twin Class.
60 Foot . – 2.07 sec
330 Foot – 5.40 sec
1/8 mile – 8.22 sec @ 87.0 mph
1/4 mile – 12.89 sec @ 102.5 mph


I was a wee bit miffed that I blew the shift and lost in Street class.
However, after reviewing the time slips, I’m pretty sure I would have lost that race even if I made a clean shift.

In Hot twin I went too fast.
In Street class, my 60’ time was 0.035 seconds faster than my Hot Twin time.
My 330’ time was 0.025 seconds faster, and my 1/8 mile time was 0.01 seconds faster.
If I’d had made a clean shift into 6th gear, I’m pretty sure I would have run quicker than my Hot Twin run, and broke out.

After evaluating the situation, I picked a new Dial-In time of 12.88 seconds and headed out for the 2nd round of Hot Twin eliminations.

In round 2, I was racing my friend Bruce, on his Victory, and he had a Dial-In time of 13.00 seconds.
We staged the bikes and his light turned green. He had a fast reaction time and he was gone.
Then my light turned. I had a stupid slow reaction time, a poor launch, and I chased him all the way down the track.
He won, I lost. Same sh*t, different day. :smt003

Round 2 of Eliminations in Hot Twin Class.
60 Foot . – 2.11 sec
330 Foot – 5.47 sec
1/8 mile – 8.31 sec @ 86.5 mph
1/4 mile – 13.03 sec @ 101.2 mph


Bruce and I had paired up several time during Qualifying, and in the Elimination round.
Over the course of the weekend, I learned something very interesting about how the RZ puts power to the pavement at the top end of the track. :smt115
But, that could turn out to be a long story, so I best that I save it for another day. :smt024

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Re: Drag Bike - Plan B

#655 Post by JonW » Sun Jul 30, 2023 10:14 am

Well, we do like a long story... :D
80 XT500 Supermoto!
81 RD350LC Resto
82 RD421LC Hybrid
82 RD350LC decapitation project
82 RD250LC JDM '251LC' YPVS
83 RZ350 Resto
84 RZ500 Resto
85 RZ350 F1 Resto
86 RZ350 F2 Resto
86 RZ350 F2 Hybrid

Like Watches? www.PloProf.com & www.DeskDivers.com

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Re: Drag Bike - Plan B

#656 Post by Off Road » Wed Aug 23, 2023 1:19 am

Saturday, July 22/23 – CMDRA Race #4 – Rimby, AB

The whole weekend could be clearly, and concisely, described in 4 words.
Same shit. Different day.
But, as always, there is a longer version.

Saturday was great day to be at the track. Hot, sunny and nothing but blue sky.
At every race this year, we’ve been blessed with perfect weather for racing.
For this race in Rimby, it was a wee bit too hot (35*C, 95*F), and the humidity made it worse.

I made 8 runs on Saturday and they were all pretty much the same.
I suit up in full leathers and make my way to the staging lanes for a run.
Wait about 10 minutes for my turn. Make a run in Street class and head back to the staging area to run Hot Twin.
Wait another 10 minutes for my turn, make my run, and then head back to my pit.
The total time from leaving my pit till I get back to it, is between 25 to 30 minutes, but it can be as long as 45 minutes if there’s an issue/problem on the track.
And that whole time is spent sitting on the bike, in the sun, on a big, black asphalt pad, wearing full leathers, on a really hot, humid day.
Every time I went back to the pit, it took 5 minutes just to peel off my gloves and jacket.
My shirt was so wet, it couldn’t possibly soak up 1 more drop of water and, when I removed my helmet, my hair looked like I just stepped out of the shower.
Despite these minor inconveniences, It was an awesome day to be at the track.

We got on track and made our first test and tune runs at noon.
With the hot weather, the bike was down a bit on power (and mph), and my times were 2/10 second slower than the last time I was at this track, in June.

Test and Tune Run 1
60 Foot . – 1.99 sec
330 Foot – 5.35 sec
1/8 mile – 8.18 sec @ 87.1 mph


Test and Tune Run 2
60 Foot . – 1.97 sec
330 Foot – 5.35 sec
1/8 mile – 8.23 sec @ 85.7 mph


The good news was that the 2 runs were pretty consistent. A difference of only 0.05 seconds at the finish line. :smt023

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Re: Drag Bike - Plan B

#657 Post by Off Road » Wed Aug 23, 2023 1:21 am

The first rounds of Qualifying were around 3:00 pm, and it was hot.
My runs in both classes were a huge waste of time and fuel.
The bike stumbled/stuttered when I let out the clutch and all my times suffered (60’, 330’, 1/8 mile).

Round 1 of Qualifying in Street Class.
60 Foot . – 2.15 sec
330 Foot – 5.60 sec
1/8 mile – 8.70 sec @ 81.3 mph


Round 1 of Qualifying in Hot Twin Class.
60 Foot . – 2.91 sec
330 Foot – 5.77 sec
1/8 mile – 8.63 sec @ 86.2 mph



The 2nd round of Qualifying was around 4:30 pm, and it was even hotter than it was at 3:00.
In Street qualifying, I missed the shift into 2nd gear, and made my slowest run of the weekend.
In Hot Twin, I had an OK run.
I got my best 60’ time of the weekend, but the bike was hot, the air was hot, and the mph was down, so my 1/8 mile time was a bit slow.

Round 2 of Qualifying in Street Class.
60 Foot . – 2.07 sec
330 Foot – 5.90 sec
1/8 mile – 8.82 sec @ 83.9 mph

Round 2 of Qualifying in Hot Twin Class.
60 Foot . – 1.94 sec
330 Foot – 5.38 sec
1/8 mile – 8.27 sec @ 85.4 mph


When round 2 was over and I got back to my pit area, I was a puddle.
The combination of a late night, early morning, mild hangover, and hot weather had taken its toll. Damn, it sucks getting old.
After I got my leathers off, I sucked back a liter (quart) of water, found a spot in the shade, and laid down out of the sun.
Stayed there for over an hour and managed to have a bit of a nap.
When I got up, I felt a lot better, way better than I had all day.
So, I sucked back another liter of water and headed out for the 3rd round of Qualifying.

It was 6:00 pm when we went out for the 3rd round of Qualifying, and the air had cooled off a bit.
I had a good solid run in Street class and had my fastest mph of the weekend.
It was over 2 mph faster than I in Round 2.

Round 3 of Qualifying in Street Class.
60 Foot . – 1.98 sec
330 Foot – 5.38 sec
1/8 mile – 8.21 sec @ 87.6 mph


I had a really good qualifying run in Hot Twin.
My fastest 60’ time of the weekend. My fastest 330’ time of the day. My fastest 1/8 mile time of the day.

Round 3 of Qualifying in Hot Twin Class.
60 Foot . – 1.95 sec
330 Foot – 5.31 sec
1/8 mile – 8.15 sec @ 87.1 mph


So, I made 2 good runs in the last qualifying session, but there was something else that happened that was even better.
My friend Bruce and I like to run together during qualifying.
We are both quick to pre-stage and stage, so it’s one less thing to have to worry about when you’re going for time.
Some of the people are really slow to stage and there are a couple of guys who’ll be slow on purpose, just to mess with you and throw you off your race.

At the races in Edmonton, we paired up 8 times in Qualifying and once in Eliminations.
So far, at the Rimby races, we paired up for both test and tune runs, and the Qualifying runs in rounds 1 and 2.
In total we had 15 races, at the last 2 events.
In each and every race, the RZ had a quicker time than the Victory, and it was always 2 or 3 mph faster at the finish line.
Out of the 15 races, Bruce won 15, and I won zero.
After my nap, we paired up again for the 3rd Qualifying rounds for Street and Hot Twin.
I won both races.

But Qualifying isn’t about kicking your buddy’s ass, or going fast. It’s about Reaction Times, and mine were mediocre, at best.
In Street, my best Reaction Time was 0.15115 seconds, and I Qualified 9th, out of 14 racers. (The #1 Qualifier had a Reaction Time of 0.003 seconds)
In Hot Twin, my best Reaction Time was 0.14957 seconds and I Qualified 6th, out of 10 racers. (The #1 Qualifier had a Reaction Time of 0.040 seconds)

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Re: Drag Bike - Plan B

#658 Post by Off Road » Wed Aug 23, 2023 1:21 am

Sunday, July 23/23 – CMDRA Race #4 – Rimby, AB

I was up early, and while the track was still quite, I made a coffee, went outside, lounged in my chair, enjoyed the warmth of the early morning sun,
and evaluated the previous days time slips.
The warm morning turned into a hot afternoon, with nothing but blue sky and sunshine. A really great day to be at the track.

I made 8 runs on Saturday.
On 1 run, I blew a shift.
On 2 of the runs, the bike stumbled when I let out the clutch,
Air too hot? Wrong jetting? Somebody put a dummy in charge of releasing the clutch? I didn’t know.
What I did know is that those 3 runs would be of no use for picking a Dial-in time, so I ignored them.

On my 5 good runs, I ran 8.15, 8.18, 8.21, 8.23, and 8.27 seconds.
My fastest runs were at the beginning, and the end, of the day. The slow run was mid day, when it was hotter.
I was thinking of a Dial-in time between 8.15 and 8.20 seconds, but I’d have to see how the bike ran in Sunday’s test and tune session.

My 1st test and tune run was at 12:00 noon, and it sucked.
My 2nd test and tune run was at 12:30 pm, and it sucked.

On both runs I had a decent reaction time and the bike launched hard, but I dumped the clutch too hard and the bike stumbled off the line.
My 60’ times were over 2/10 of a second slower and my 1/8 mile times were over 3/10 of a second slower than Saturday’s times.

Test and Tune Run 1
60 Foot . – 2.43 sec
330 Foot – 5.71 sec
1/8 mile – 8.56 sec @ 86.6 mph


Test and Tune Run 2
60 Foot . – 2.22 sec
330 Foot – 5.67 sec
1/8 mile – 8.53 sec @ 87.0 mph


On the bright side, the 2 runs were really consistent with a time difference of only 0.03 seconds.
And the bike was making decent power. I still had a speed of 87 mph at the finish line.

The first round of Eliminations was at 2:00 pm and the temperature was getting hotter by the minute.
The time for evaluation, speculation, and theory, was over. I had to pick a Dial-in time.
The bike ran 8.21, 8.23, and 8.27 on Saturday afternoon.
I picked a Dial-in time of 8.20 seconds and went racing.

While sitting in the Staging lanes, I saw that my buddy Bruce had picked a Dial-in time of 8.15 seconds for his race.
Not good.
I’ve literally raced Bruce over a hundred times in the last 6 years, and I know that the RZ is quicker than the Victory.
About 0.1 sec. quicker in the 1/4 mile, and 0.05 sec quicker in the 1/8 mile.
So, if my Dial-in time is correct, he should have a Dial-in of 8.25 seconds
But, if his Dial-in is correct, then I should have picked a Dial-in time of 8.10 seconds
One of us had made a pretty serious mistake.

As it turned out, it was me. I ran 8.103 seconds and broke out. :smt005
I had my fastest 330’, fastest 1/8 mile time, and my highest mph of the weekend.

Round 1 of Eliminations in Street Class.
60 Foot . – 1.98 sec
330 Foot – 5.30 sec
1/8 mile – 8.10 sec @ 88.2 mph


After losing the Street race, I went back to the staging lanes, and changed my Dial-in time to 8.10 seconds, for the Hot Twin class.
I was racing Jay, on his Harley and he had a Dial-in time of 8.07 seconds, which meant that I got a 0.03 second head start. Whoop. Whoop.
My reaction time was 0.09 seconds faster than Jay’s, so I was out 4 or 5 bike lengths, before he even moved.
I didn’t get the best launch and my 60’ time was 0.10 seconds slower than my Street run.
This made my 330’ time 0.15 seconds slower.
At about the 500’ foot mark, I was still I was still a couple of bike lengths in front of jay, and I blew the shift into 4th gear.
The good news is that I did get on the 2nd try. :smt023
Unfortunately, the 2nd effort took a few fractions of a second and Jay got me at the line.
I lost by 0.007 seconds.

Round 1 of Eliminations in Hot Twin Class.
60 Foot . – 2.09 sec
330 Foot – 5.45 sec
1/8 mile – 8.39 sec @ 83.9 mph



Two races. Two losses due to rider error.
In my mind, I pictured the weekend going quite different.
Definitely not what I was hoping for, but I’ll get them next race. :smt003

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Re: Drag Bike - Plan B

#659 Post by Off Road » Wed Sep 27, 2023 1:29 am

Off Road wrote: Sun Jul 30, 2023 1:20 am Over the course of the weekend, I learned something very interesting about how the RZ puts power to the pavement at the top end of the track.
But, that could turn out to be a long story, so I best that I save it for another day. :smt024
JonW wrote: Sun Jul 30, 2023 10:14 am Well, we do like a long story... :D
To my friend Jon: Your wish is my command.
To All the other people: This post is Jon’s fault. Blame him.

I paired up against my friend Bruce, on his Victory, 9 times in Edmonton.
On every run the RZ ran a quicker time than the Victory, and had a higher mph.
On every run, Bruce had a faster Reaction Time, so he always got out in front of me.
The Victory has massive torque and Bruce usually has a 0.1 second faster 60’ time than the RZ.
So, by the 60’ mark, he had a 3 bike-length lead, and I had to chase him down.

At 100’ out, when I shifted to 3rd, the Victory was still in 2nd gear; and the 2 bikes were pretty evenly matched.
When I shifted into 4th gear, that all changed.
The RZ pulled hard and I started gaining ground pretty quick. Same thing in 5th gear.
When I shifted into 4th, I was still 2 bike lengths behind the Victory.
By the time I hit redline in 5th gear; my front wheel would be up beside his rear wheel.

Then I’d shift to 6th and the RZ’s acceleration slowed waaay down, and when we crossed the finish line, my front wheel would only be up beside his butt.

Sixth gear on the RZ is an overdrive, and my poor old RZ doesn’t have the power to pull it.
The engine will still hit redline in 6th gear; it just won’t do it in the 1/4 mile.
I need more power. Correction: I want more power. I need more $$$.
However, what I could do, for nothing down and no payments, is change the 15T front sprocket for a 16T sprocket.
Then I wouldn’t need 6th gear; I could run out the 1/4 mile in 5th gear.
Hmmm. But………
Off Road wrote: Mon May 22, 2023 2:05 am The RZ is ready to race, and I will be making Zero, Nada, No changes to the bike all season.
This year, I’m going to put my efforts into learning how to ride what I’ve got.
So, how’s that “learn to ride” thing been working out for me?
Well, I’ve been to 4 races this year and entered in 2 classes at each race.
This means I’ve been in 8 Elimination rounds, and I’ve been eliminated 8 times.
1 loss due to a Red Light (Rider error)
2 losses due to Slow Reaction Time (Rider error)
3 losses due to Missed Shift (Rider error)
2 losses due to Breakouts (Rider error – Picked the wrong Dial-In time)

It appears that I haven’t learned a damn thing, so I installed the 16T front sprocket and went racing in Prince George. :smt003

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Re: Drag Bike - Plan B

#660 Post by Off Road » Wed Sep 27, 2023 1:29 am

Saturday, Aug. 26/23 – CMDRA Race #5 – Prince George, BC

Saturday was great day to be at the track. Hot, sunny and nothing but blue sky.
On my 1st test and tune run, I ran my fastest 60’, 330’, 1/8 and 1/4 mile times, at this track.
And my 1/4 mile time was a colossal 0.046 seconds faster than my previous record.
Test and Tune Run 1
60 Foot . – 1.92 sec
1/8 mile – 8.00 sec
1/4 mile – 12.53 sec @ 106.8 mph


Sadly, this was my best run of the weekend; it kinda went downhill from after that.
However, I did manage to set 2 more personal records in Prince George.

On my 2nd test and tune run, the bike launched hard, went 3 or 4 feet, almost stalled, and then took off.
That stumble added 0.2 sec to my 60’ time, 0.3 sec to my 1/8 mile, and 0.4 sec. to my 1/4 mile time.
Test and Tune Run 2
60 Foot . – 2.14 sec
1/8 mile – 8.36 sec @ 87.0 mph
1/4 mile – 12.97 sec @ 103.6 mph


On my 1st run, I crossed the finish line in 5th gear, but the 9400 rpm shift light did turn On before the finish line.
On my 2nd run, I shifted to 6th gear, when I was about 50’ from the finish line.
I wasn’t happy with the mph I got using 6th gear and decided to just use 5th gear for Qualifying.

I changed the shift light from 9400 to 9600 rpm. This would give me more time, and distance traveled, in the lower gears (1 – 4), and then I wouldn’t have to wind it out for such a long time in 5th gear.
For the rest of the weekend, I crossed the finish line going 104 to 106 mph, and the 9600 rpm shift light would just be starting to flicker, or be fully on, when I crossed the line.

Qualifying started terrible, and didn’t change a whole lot.

Round 1 of Qualifying in Street Class.
The bike launched hard, went 3 or 4 feet, almost stalled, and then took off.
60 Foot . – 2.37 sec
1/8 mile – 8.58 sec @ 87.7 mph
1/4 mile – 13.14 sec @ 106.3 mph


Round 1 of Qualifying in Hot Twin Class.
The bike launched hard, went 3 or 4 feet, almost stalled, and then took off.
60 Foot . – 2.16 sec
1/8 mile – 8.37 sec
1/4 mile – 12.99 sec @ 104.2 mph


Round 2 of Qualifying in Street Class.
The bike launched hard, went 3 or 4 feet, almost stalled, and then took off.
60 Foot . – 2.27 sec
1/8 mile – 8.49 sec @ 87.3 mph
1/4 mile – 13.09 sec @ 105.2 mph


Round 2 of Qualifying in Hot Twin Class.
The bike launched hard, went 3 or 4 feet, almost stalled, and then took off.
60 Foot . – 2.38 sec
1/8 mile – 8.65 sec
1/4 mile – 13.29 sec @ 104.6 mph


The light turns green. The brain says, slowly release the clutch. The hand hears, dump the clutch now.
And I get 4 bad runs in a row. Oh well, not the first time. Been there, done that.
It was a bit disheartening, but at the time, it wasn’t my biggest problem.

The big problem was that I got a Red Light on all 4 runs. :smt012
I left 0.024, 0.046, 0.035, and 0.006 seconds before the light turned green. Ummm. WTF.
My normal reaction times are 10x slower than that.
(According to my spreadsheet, my Average Reaction Time for this season is a pitiful 0.251 seconds.)

This year, I’ve only had 2 red lights, out of the 47 passes that I made down the track.
And then, in a time span of 2 hours, I get 4 red lights in a row.

That definitely qualified as a new personal record. But, I wasn’t done yet. :smt005

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