Search found 1263 matches

by T.RexRacing
Fri Jan 11, 2019 1:07 pm
Forum: Yammer-Howling
Topic: 2strokeworld.com
Replies: 30
Views: 3055

Re: 2strokeworld.com

Try changing web browsers. Seems you have transport layer security issues that may be due to the version of whatever it is you are using. Tried other browsers. Not working for me. Tried every setting on the phone I can find. Nothing has worked to get me on the site. Are you using an old computer? M...
by T.RexRacing
Fri Dec 28, 2018 9:58 pm
Forum: Yammer-Howling
Topic: Boost Bottle Dyno
Replies: 21
Views: 4804

Re: Boost Bottle Dyno

OK.
by T.RexRacing
Fri Dec 28, 2018 4:47 pm
Forum: Yammer-Howling
Topic: Boost Bottle Dyno
Replies: 21
Views: 4804

Re: Boost Bottle Dyno

If it pulls cleaner it will measure higher output across the board. Remember time is part of the equation to calculate horsepower. TorqueXRPM/5252=HP. Revolutions per Minute. Top fuel crankshafts rotate about 600 times in a 4 second run and are estimated in excess of 10 thousand HP.
by T.RexRacing
Fri Dec 28, 2018 12:50 pm
Forum: Yammer-Howling
Topic: Boost Bottle Dyno
Replies: 21
Views: 4804

Re: Boost Bottle Dyno

I tried that and found an off idle stumble I couldn't tune out w/30MM VMs. While Barlow found a power increase w/boost bottle most of what I felt was an increase in driveability. That soft area 3-5K RPM where the stumble shows up sans airbox was much cleaner and a smooth transition into the powerban...
by T.RexRacing
Tue Dec 25, 2018 1:09 pm
Forum: Yammer-Howling
Topic: Boost Bottle Dyno
Replies: 21
Views: 4804

Re: Boost Bottle Dyno

Harry Barlow did a lot of dyno testing developing a boost bottle for the RZ engine. He's a tough guy to pin down solid information on though. There's an SAE paper on the Yamaha YEIS by Noriyuki Hata and a couple others as well. I have a Barlow bottle I got from Supertune Chuck that worked well but n...
by T.RexRacing
Mon Dec 24, 2018 12:08 pm
Forum: Yammer-Howling
Topic: MOT Compliance
Replies: 4
Views: 488

Re: MOT Compliance

^^^^^^^
What he said!
by T.RexRacing
Mon Dec 24, 2018 12:07 pm
Forum: Engines
Topic: 11882 ultra stroke wiseco pistons, option for +4mm stroker?
Replies: 12
Views: 2228

Re: 11882 ultra stroke wiseco pistons, option for +4mm stroker?

EE wrote: Sun Dec 23, 2018 9:49 pm Now if only there was a substantial amount of airflow at BDC.......
Care to dive a little deeper Ed? Any relief for that?
by T.RexRacing
Sun Dec 23, 2018 12:07 pm
Forum: Engines
Topic: FUEL
Replies: 26
Views: 2264

Re: FUEL

First of all my RZ is modified. I run VP U4.4 in the RZ. It ain't cheap ('bout $15 a gallon) but the bike is a toy not transportation. Over time the U series has been changed to a much more stable concoction. No more need to drain the float bowls after use to avoid the goo accumulation. R+M/2 is 108...
by T.RexRacing
Wed Dec 19, 2018 12:46 pm
Forum: Engines
Topic: Transmission oil
Replies: 9
Views: 1395

Re: Transmission oil

brrrappp wrote: Mon Dec 17, 2018 7:27 pm
T.RexRacing wrote: Mon Dec 17, 2018 12:24 pm Are you measuring while on the sidestand? If so there's your problem.
I think his side stand is still on the left side of the bike........ :smt003

yeah brain cramp. Nevermind.
by T.RexRacing
Mon Dec 17, 2018 12:24 pm
Forum: Engines
Topic: Transmission oil
Replies: 9
Views: 1395

Re: Transmission oil

Are you measuring while on the sidestand? If so there's your problem.
by T.RexRacing
Tue Jul 03, 2018 6:33 pm
Forum: Chassis, Brakes & Suspension
Topic: Fork Valves Nomenclature?
Replies: 7
Views: 1105

Re: Fork Valves Nomenclature?

evan_calgary wrote:I'm not asking about making them....as per the title i'm just wondering what they would be called. If Yamaha's race team offered these as a performance product (not that they would) what would hey call them?
Ah fuck this place there's nothing here that can't be found elsewhere.
by T.RexRacing
Tue Jul 03, 2018 11:07 am
Forum: Chassis, Brakes & Suspension
Topic: Fork Valves Nomenclature?
Replies: 7
Views: 1105

Re: Fork Valves Nomenclature?

You can make your own with easily sourced parts.
by T.RexRacing
Mon Jul 02, 2018 7:16 pm
Forum: Custom Projects/Restoration
Topic: Custom bike show RZ
Replies: 8
Views: 1663

Re: Custom bike show RZ

It certainly is shiny. And the chain is loose enough to cause damage should it ever be ridden.