i was doing a peel out starting in first gear and my rpms just shot up to redline really fast and i was boucing off the rev limiter. is that bad for the engine. obviously its bad but how bad is it?
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Originally posted by redpreludevtec9 i was doing a peel out starting in first gear and my rpms just shot up to redline really fast and i was boucing off the rev limiter. is that bad for the engine. obviously its bad but how bad is it?
It isnt good, so do it sparingly...once in a while wont be THAT bad (that is a big THAT)
That's why God (and the Honda Engineers) installed a rev limiter. To keep stupid people from blowing up their engines . I'm at 7600, have driven the lude harder than most and that includes countless shifts @ 7500rpm with no issues. I know others that drive harder than me and they've had no problems as well.
Another thing to think about is that the 5th gen makes peak power at 7000 rpms (or whatever you get on your dyno). After 1st and 2nd, where you would reline to stay in VTEC, you're better off shifting before the redline to get maximum performance.
For instance I was drag racing another 5th gen, and at the very end I stayed in 3rd, he shifted to 4th. I watched him pull 5 feet or so on me at the end, cause my engine was losing power over 7200 or so...I hit the rev limiter just as we finished...
ludikris is probably referring to me. Bounce off the rev limiter all you like- on the H22 it's perfectly safe, the limit is set appropriately.
nuro, the rev limit should not be different in different gears- the ECU has no way of knowing what gear you are in. I don't think it varies per speed, either. I believe the only variance is with the lower "cold" or "neutral" rev limit. What you are seeing might be a function of weight, acceleration, and momentum, and the effect they have on your engine speed when the rev limit kicks in. It could also be a measurement error on the Apexi's side, which might explain why it's repeatable.
Cliff noted story about my brother:
Being the nice older bro I am I let him drive around town. On the way home it's all clear on the 4 lane road ahead. I tell him to run it up through VTEC in 1 and 2. He misses 2nd !!! and lays on the limiter for a good 4 or 5 bounces. I laughed and asked him how many times he was going to do that.
Morale of the story: I've hit the limiter a bunch and after 76K, I don't have any engine/tranny problems (knock on wood).
an 'ol head in a 300zx at solo II kept hitting his limiter during all of his runs. i saw him the next event and he did the same thing on his first 4 runs. he never made it to the 5th run that day.
stay away from the limiter.
v
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Originally posted by Satan_SRV Another thing to think about is that the 5th gen makes peak power at 7000 rpms (or whatever you get on your dyno). After 1st and 2nd, where you would reline to stay in VTEC, you're better off shifting before the redline to get maximum performance.
For instance I was drag racing another 5th gen, and at the very end I stayed in 3rd, he shifted to 4th. I watched him pull 5 feet or so on me at the end, cause my engine was losing power over 7200 or so...I hit the rev limiter just as we finished...
The point of pushing your car until redline (even if your power curve goes down) is to place you as high up in the rpm's in the next gear as you can get.. You do lose some power doing this, but you gain some in the next gear... Shift to late, lose to much power.. Shift to early and you dont get enough of a head start in the next gear..
Im not sure the powercurve in 4th or 5th gens, as i own a 3rd.. but i know in my car the ideal rpm to shift at is slightly over 6k, instead of taking it to redline.. I guess every car is different on where you should shift, just gotta find the "sweet spot"
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In the 5th gen, with the gearing and VTEC point, first HAS to go to red in order to land in 2nd in VTEC.
Peak power in the 5th gen is at 7500 RPMs, I believe cutoff is 7800... taking it to the limiter (or just before) is where you need to be in order to maximize the power you lay down.
Originally posted by marcucci In the 5th gen, with the gearing and VTEC point, first HAS to go to red in order to land in 2nd in VTEC.
Peak power in the 5th gen is at 7500 RPMs, I believe cutoff is 7800... taking it to the limiter (or just before) is where you need to be in order to maximize the power you lay down.
Isn't peak power (stock) at 7000rpms? I was just reading it right off Honda Canada's website....
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. I'm at 7600, have driven the lude harder than most and that includes countless shifts @ 7500rpm with no issues. I know others that drive harder than me and they've had no problems as well.
Bounce off the rev limiter all you like- on the H22 it's perfectly safe, the limit is set appropriately. 
!!! and lays on the limiter for a good 4 or 5 bounces. I laughed and asked him how many times he was going to do that. 
But you guys are right its there for a reason.
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