« Last post by ADMIN on March 25, 2017, 06:28:38 PM »
The leakdown was 4% across all (according to the shop)? Could this still be the case? If so, how does a valve shim get thrown (I don't know)?They put air in the cly it leaked, but they could not tell where, BS on that for one, also no way its going to have 4% across and one cly that cannot hold air, and I don't buy can't see nothing on the scope or they did and not known what there looking at, and as John said it could be a throw shim which could be caused by a jackass setting up the head and getting clearance wrong, or possibly severe valve float, from weak springs or a combination of the weak springs and the jackass, and I understand what you meant by the 20HP, but 20HP on a turbo bike running 18 psi boost ain't nothing, should not have effected jack, you said nothing on your original tune up was changed, the rebuild basically was freshen up what you had??? compression, cams, injectors, or anything in fuel system or ign system was not changed, and bike ran fine until it got revved up good when you made the pass???, if the scope check really was OK the thrown shim could be a possibility, that the shim or a part of it has a valve slightly jammed and holding it open a bit, you may or may not see this on a scope check but you would sure as hell see it when blowing air in the cly, it would ether leak out the throttle body (intake), or exhaust, tell Steve you need to know what exactly caused this cause you got a forum full of guys that need to know, also if you need them I have a spare head and a cherry stock bore cly,
you could use an air regulator to put pressure to the fuel regulator. use the nitrous to do it. Tee the line to the jet, regulate it to a set psi, like say 30 and apply that to the fuel reg when the nitrous is on. fuel pressure goes up when nitrous is used.This could work, but keep in mind when your FMU is operating at normal idle pres 40psi and when is get boost pres it go's up depending on the FMUs rate of gain, on a typical turbo application its like 6 to 1 so even 10 lbs to the FMU set up that way would give you 100 psi of pres, way to much, you need to get with a bike nitrous pro someone well experienced on running bikes on nitrous especially a dry system, if I were still playing with nitrous anymore I would look to Ryan Shinitz, as far as I know he's gone faster with nitrous than anybody else, and could most likely give you a set up that will work, and stay together
#50 & #51 need to be reversed, which will also put Ransom in the top 50.
Rashid Alhajri, won the first round of Qatar half mile 366 km. 227 mph