Beefing up the crank & Gearbox in prep for 500cc.
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Re: Beefing up the crank & Gearbox in prep for 500cc.
There is a reason we don't hear much about big engine NS400R builds. It is very expensive and very difficult. There is no straight forward approach.
Re: Beefing up the crank & Gearbox in prep for 500cc.
I recall another 500 kit for sale in Australia years ago, pretty sure it was DMR but if not DMR then there have been 3 suppliers
1985 RZ500
1986 RG500
1986 RG500 C
1992 RGV500 WW ATR
1992 RGV500 LS
1985 NS500 Spencer p
1989 TZR500 Biaggi p
1984 RZV500 Rainey p
1994 NSR250sp R
1983 NS250 p
1987 RG250 WW p
1983 RG250 p
1988 YSR50 p
1986 RG500
1986 RG500 C
1992 RGV500 WW ATR
1992 RGV500 LS
1985 NS500 Spencer p
1989 TZR500 Biaggi p
1984 RZV500 Rainey p
1994 NSR250sp R
1983 NS250 p
1987 RG250 WW p
1983 RG250 p
1988 YSR50 p
Re: Beefing up the crank & Gearbox in prep for 500cc.
For the sort of ££ we are talking here you may as well go and buy a NS500!
One sold at bonhams last year in the UK for £23,000 which was a steal
Ade
One sold at bonhams last year in the UK for £23,000 which was a steal
Ade
Re: Beefing up the crank & Gearbox in prep for 500cc.
Wow - that 23,000 queens is a steal.Ade SYM wrote:For the sort of ££ we are talking here you may as well go and buy a NS500!
One sold at bonhams last year in the UK for £23,000 which was a steal
Ade
I have been following an RS500 in Japan - when I found it years ago the price was USD$45K, it has crep to USD$65K. And the gent is still not convinced he wants to sell. Same thing with a few RGB500s I tracked down. Their asking prices are both in the USD$75K range.
Honestly, I might have rather bought that UK RS500 in place of the CBR1000RR SP2. LOL
CBR1000RR SP2 HRC WSBK
TZ500V/OW53 Track bike
YZR500 OW81 Clone
OW69 Daytona 200 Replica - 784cc Monster
NS400 Track Bike
RS250R NF5
TZ250T 2KM
TZ250B 3YL
TZR250 3MA Track Bike
427ci C5 Z07
TZ500V/OW53 Track bike
YZR500 OW81 Clone
OW69 Daytona 200 Replica - 784cc Monster
NS400 Track Bike
RS250R NF5
TZ250T 2KM
TZ250B 3YL
TZR250 3MA Track Bike
427ci C5 Z07
Re: Beefing up the crank & Gearbox in prep for 500cc.
http://www.classicracereplicas.com/Hond ... -Kit-475cc" onclick="window.open(this.href);return false;
Re: Beefing up the crank & Gearbox in prep for 500cc.
This uses bored stock cylinders - looked at this setup 4 or 5 years ago. Havent seen any DMR setups out and about so figured why not go for something totally different
CBR1000RR SP2 HRC WSBK
TZ500V/OW53 Track bike
YZR500 OW81 Clone
OW69 Daytona 200 Replica - 784cc Monster
NS400 Track Bike
RS250R NF5
TZ250T 2KM
TZ250B 3YL
TZR250 3MA Track Bike
427ci C5 Z07
TZ500V/OW53 Track bike
YZR500 OW81 Clone
OW69 Daytona 200 Replica - 784cc Monster
NS400 Track Bike
RS250R NF5
TZ250T 2KM
TZ250B 3YL
TZR250 3MA Track Bike
427ci C5 Z07
Re: Beefing up the crank & Gearbox in prep for 500cc.
having seen one of Ian Wrights big bored prepped NS400s at Cadwell lapping at (class) record pace few weeks ago, it looks and sounds a pretty impressive set up, how close that is to the 475"over the counter" kit im not sure...
Re: Beefing up the crank & Gearbox in prep for 500cc.
I believe the CR125 barrel is an exact fit for the NS400 so am not sure no body has gone down this route as yet.
Would have thought with a little fettling of the barrel to look at the overall tune it may have been a starter.
Any one know if this has been done yet?
Ade
Would have thought with a little fettling of the barrel to look at the overall tune it may have been a starter.
Any one know if this has been done yet?
Ade
Re: Beefing up the crank & Gearbox in prep for 500cc.
Ade Said
On the NS400r forum https://ns400r.co.uk/forum/search.php?keywords=cr125" onclick="window.open(this.href);return false;I believe the CR125 barrel is an exact fit for the NS400 so am not sure no body has gone down this route as yet.
1985 RZ500
1986 RG500
1986 RG500 C
1992 RGV500 WW ATR
1992 RGV500 LS
1985 NS500 Spencer p
1989 TZR500 Biaggi p
1984 RZV500 Rainey p
1994 NSR250sp R
1983 NS250 p
1987 RG250 WW p
1983 RG250 p
1988 YSR50 p
1986 RG500
1986 RG500 C
1992 RGV500 WW ATR
1992 RGV500 LS
1985 NS500 Spencer p
1989 TZR500 Biaggi p
1984 RZV500 Rainey p
1994 NSR250sp R
1983 NS250 p
1987 RG250 WW p
1983 RG250 p
1988 YSR50 p
Re: Beefing up the crank & Gearbox in prep for 500cc.
I chatted with Ian some years ago about doing his 475 kit. For me being in the USA I was trying to consolidate shipping etc. One idea was to buy a suitable donor engine from Dan over at Gecko, send it directly to Ian and have the big bore work done to it then ship the completed motor out here.podman wrote:having seen one of Ian Wrights big bored prepped NS400s at Cadwell lapping at (class) record pace few weeks ago, it looks and sounds a pretty impressive set up, how close that is to the 475"over the counter" kit im not sure...
That is still my 'last resort' goto - and as the years tick by and donor NS400's dry up I supposed I ought to pull that trigger sooner than later LOL
Then again I am intrigued by the true 499cc nature of the new production DMR barrels.
CBR1000RR SP2 HRC WSBK
TZ500V/OW53 Track bike
YZR500 OW81 Clone
OW69 Daytona 200 Replica - 784cc Monster
NS400 Track Bike
RS250R NF5
TZ250T 2KM
TZ250B 3YL
TZR250 3MA Track Bike
427ci C5 Z07
TZ500V/OW53 Track bike
YZR500 OW81 Clone
OW69 Daytona 200 Replica - 784cc Monster
NS400 Track Bike
RS250R NF5
TZ250T 2KM
TZ250B 3YL
TZR250 3MA Track Bike
427ci C5 Z07