Griffith Rev Limit
Discussion
hi guys
this will probably sound like a really silly question and i must have missed the info somewhere..but can anyone tell me what a reasonable rev limit is for a standard '99 griff 500 ?
my revcounter has no red line, and i cant find any mention in the handbook or steve heaths book at all.
cheers
Ian
this will probably sound like a really silly question and i must have missed the info somewhere..but can anyone tell me what a reasonable rev limit is for a standard '99 griff 500 ?
my revcounter has no red line, and i cant find any mention in the handbook or steve heaths book at all.
cheers
Ian
spend said:
You must be real woosses if you've never bounced off the limiter 
must TRY harder 
Don't give me all this staying in the power band tripe, if you use the gears the redline comes up so quick you are bound to pop your cherry if you pedal with any inclining of grit & determination
Don't hit mine, the shift light tells me before I do! must TRY harder Don't give me all this staying in the power band tripe, if you use the gears the redline comes up so quick you are bound to pop your cherry if you pedal with any inclining of grit & determination
Going from Memory, which isn`t as good as it used to be, rev limit on a 500 is 6250rpm. Max power is achieved at 5850rpm, so no real benefit of going any higher than that, plus distributor/rotor arm/cap wear is supposed to be hideous at high revs, hence why I change at approx 5800rpm. 
Whilst it still feels good... DO IT 
TBH Matt I think the state of the valve train & cam (inc what cam..) along with how well balanced the particular engine is will dictate the rpm you can run to (sparks willing)? There are plenty of essentially std RV8 ( just nicely turned out IYSWIM ) engines running to 7000rpm. Whether they would run all day at those limits is another question, but it does make you think there must be same variation and the rev limiters were set to cope with abused poorer (manufacturing tolerance) engines? Did TVR set lower rev limits on 500's because of the longer stroke? ~ you might consider the rods & pistons were engineered to be a bit stronger? Some of the TVR cranks do feel to be made of denser material as well - just a suspicion I get from it appearing they have much less material but seem to weigh the same in the hand when compared to large 4.6 items..
TBH Matt I think the state of the valve train & cam (inc what cam..) along with how well balanced the particular engine is will dictate the rpm you can run to (sparks willing)? There are plenty of essentially std RV8 ( just nicely turned out IYSWIM ) engines running to 7000rpm. Whether they would run all day at those limits is another question, but it does make you think there must be same variation and the rev limiters were set to cope with abused poorer (manufacturing tolerance) engines? Did TVR set lower rev limits on 500's because of the longer stroke? ~ you might consider the rods & pistons were engineered to be a bit stronger? Some of the TVR cranks do feel to be made of denser material as well - just a suspicion I get from it appearing they have much less material but seem to weigh the same in the hand when compared to large 4.6 items..
When MA mapped my blown JE engine the first time, I told him than JE said his engine was good for 7500k rpm but I didn't know about the blower, so MA took it upto 7k rpm on the first run and it was still pulling 
I phoned Colin and SC-Power to tell him and he nearly had a coronary on the spot and I was ordered to peg it back to 6.5k 
My old NA engine which produced around 320bhp would be off the power by 5-5.5k rpm, so there was no point in maxxing it out.
I phoned Colin and SC-Power to tell him and he nearly had a coronary on the spot and I was ordered to peg it back to 6.5k My old NA engine which produced around 320bhp would be off the power by 5-5.5k rpm, so there was no point in maxxing it out.
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