Stock Rev-limit On R33 Rb25det?

[Fat_Tony]

The red bit on the rev-counter starts at 7000 but the Rev-limiter only cuts in at 8000. It that normal? My car is basically stock, only mods are EBC, Cat-back & coilovers.

[scarface]

stock rev limit is 6900

[Fat_Tony]

Would there be a reason why my engine revs until 8000?

Is there a way to adjust the rev-limiter?

[Adriano]

Would there be a reason why my engine revs until 8000?

Is there a way to adjust the rev-limiter?

Change gears earlier LOL, seriously its not making power up there anyway, and its not going to do teh conrods much good. Its probably got a remapped ecu, have a look at the ecu and see if its got any stickers on it.

[Fat_Tony]

Just checked the ECU, no stickers other than the original part. no. 23710 21U01.

I thought the stock ECU couldn't be tweaked? I gotta get a rev-limiter adjusted, don't want to f*ck me car.

[scarface]

why dont u just change earlier instead of changing when u hiut rev limit

[sewid]

Just checked the ECU, no stickers other than the original part. no. 23710 21U01.

I thought the stock ECU couldn't be tweaked? I gotta get a rev-limiter adjusted, don't want to f*ck me car.

use the rev limiter god gave you - your brain..

[joeyjoejoejuniorshabadoo]

I've set mine to 7200 and i never bounce it...

its not rocket surgery

[Simon-S14]

tacho could be reading out

[Fat_Tony]

why dont u just change earlier instead of changing when u hiut rev limit

Just in case, better to be safe.

[WogsRus]

funny you should say that. I have a central 20 ecu, and it has two limits set, a soft limit at 7200 rpm and a hard limit at 8500.

If i sit in neutral, and blimp the throtle, the car will rev straight up to 8500 and basically turn of anf off, not like a rpm limiter at all, but if the car is in gear, and you blimp the throtle it will only go up to 7200 and no more. strange

[ashneel]

sorry to go a little of topic but at what revs does the power ban stop??? i normally change at 6500 and at times when i get a little to excited change it exactly on 7k.

so when one would be dragging (legally ofcoarse) whats the best rev to change gears in?

[bombtrack]

It should be 6900rpm as has been said. Much more than that... particularly on a relatively stock car... and you're going to do some damage over time.

The OP has asked a legitimate question, and you all act like you've never bounced it before... haha.

[Kaido_RR]

lol!

rev limit is there to be smash in an rb... no need for shiftlight when ur hear it smashing of the limiter u know its time to change gears..

8000rpm is alittle high but maybe its just ur tacho jumping around when u hit it

[Fat_Tony]

lol!

rev limit is there to be smash in an rb... no need for shiftlight when ur hear it smashing of the limiter u know its time to change gears..

8000rpm is alittle high but maybe its just ur tacho jumping around when u hit it

Actually it went past 8000 so I'm not 100% sure where its stopping. Hope I haven't damaged the engine.

[The Mafia]

lol!

rev limit is there to be smash in an rb... no need for shiftlight when ur hear it smashing of the limiter u know its time to change gears..

8000rpm is alittle high but maybe its just ur tacho jumping around when u hit it

actually, thats a really poorly thought out statement.

The limiter isn't there to be smashed, its there to semi protect the engine from over rev.

A lot of people don't realise that hitting the rev limiter is quite dangerous (if its a hard limiter which the stock ECU and powerfc is) - It spreads uneven power over the crank, forcing it all over the place. And in some cases, crank walk. This is very bad, I have pulled down an engine and seen what happens when you bounce it off constantly. Its not pretty.

I've been down the drag strip 20+ times and out of 20 runs x 4 gear changes each (Total of 80 high rpm gear changes), I've probably hit the limiter less times that I can count on one hand. Its not hard. Just use your common sense.

And no, its not an indication on when to shift. If you need a rev limiter to know when to change gears, then you should sell your car and by a push bike.

Actually it went past 8000 so I'm not 100% sure where its stopping. Hope I haven't damaged the engine.

You'll be right, just don't rev it past 7,000rpm anymore.

lol or buy my Gizzmo interface (http://www.skylinesaustralia.com/forums/t189545.html) it will plug straight in without ANY soldering. Can be used as launch control or rev limiter. Has a shift light too

Edited October 19, 2007 by The Mafia

[Kaido_RR]

actually, thats a really poorly thought out statement.

The limiter isn't there to be smashed, its there to semi protect the engine from over rev.

A lot of people don't realise that hitting the rev limiter is quite dangerous (if its a hard limiter which the stock ECU and powerfc is) - It spreads uneven power over the crank, forcing it all over the place. And in some cases, crank walk. This is very bad, I have pulled down an engine and seen what happens when you bounce it off constantly. Its not pretty.

I've been down the drag strip 20+ times and out of 20 runs x 4 gear changes each (Total of 80 high rpm gear changes), I've probably hit the limiter less times that I can count on one hand. Its not hard. Just use your common sense.

And no, its not an indication on when to shift. If you need a rev limiter to know when to change gears, then you should sell your car and by a push bike.

You'll be right, just don't rev it past 7,000rpm anymore.

lol or buy my Gizzmo interface (http://www.skylinesaustralia.com/forums/t189545.html) it will plug straight in without ANY soldering. Can be used as launch control or rev limiter. Has a shift light too

never had an issue with my engine ... never said anything about drag racing... thats a difference story.

my 25 revs out to 7300rpm without a problem, no point stopping at 7000rpm when i make power all the way to 7300rpm

and if u miss it i was joking lol! guess u never heard the joke - limiter is the blind man's shift light? lol

lol!