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Where does your car hit the limiter?
Topic Started: Jan 24 2008, 06:26 PM (153 Views)
Francis
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Chasing the Touge

Mine will stop at about 8,250rpm...

I've heard people getting to the limiter as soon as 7,800rpm though...

What does everybody elses car rev to?

Any idea why there would be a variation between stock engines?
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pa-boi
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Stage 4
I dont lik hitting the limiter. Not vry gud for the engine but its round the 8000 mark not fully sure. Normally change gear bout 6500/7000 if pushing it.
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Gar_DTD
Stage 2
i had an apexi RSM in my first trueno and it revved out to 8600rpm...this one doest rev as far...i would say about 8400....normally change gear bout 7500...my car doesnt really die off top end like the last one..
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MAC_HATER
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Stage 4
ive only ever taken my car to the redline ONCE and it bounced a bit around about 8,100rpm - i will NEVER do it again cause it sounded so cruel and horrible :(

besides - if you change gear just after 7,000RPM the next gear land at about 5,200rpm - right at the start of where the shit hits the fan!! :D
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markg-h2o
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Stage 5
8250-8300 somewher about der is what Bzr limits at any way
dont no what u guys r on about , only ever puttin it 2 7000 rpm max uz r missin out on peak power
optimised change point for nice fast safe drivin as far as i can see is 7900 to 8000 revs , max torgue is fairly high up the revs if uz havnt realised
dis engine is well fit for these sort of revs just dont do it in da first 10 mins of ur journey
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20vLevin
Stage 4
Mine is deffo about 7800-7900, I had it on the dyno and they go to the limiter!
I used to boot mine nearly everyday for a year through second and third and she still loves every minute of it!
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MAC_HATER
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Stage 4
kyleseo
Jan 24 2008, 07:42 PM
peak power is at 7800.

yeah it is but im not so keen on going that far :P

cause seriously - to pass a car on the road doing 100kmh - drop it into 3rd gear and ring it out until 7300-7500rpm and im way past the car i intended to pass and nigh on doing 140km\h! thats loss of licence territory over here! :blink:

but its SO much fun :D
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markg-h2o
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Stage 5
AceSniper
Jan 25 2008, 03:27 AM
9800rpm atm :D
stock blacktop rods... wouldnt hold up to it high for to long just rev it out and change just before limiter, no holding on the limiter or downshifting to hard for engine braking

9800 thats amazin :D
fair play uv alot of work done to her
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kyleseo
Stage 5

that is pretty impressive.

mark is right, the engine is quite capable of handling those sorts of revs and as shown can go higher. its just a case of not doing it every where, every day.
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markg-h2o
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Stage 5
yea i woul put mine into those sort of revs every day :D
just not when she is still cold ie first 10 mins
perfectly safe :)
any chance dat ders cops in da area tho im rite back down to da 4000 braket
no point in gettin penelty points
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Francis
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Chasing the Touge

Good to know these engines can take some abuse. :P

markg-h2o,Jan 25 2008
12:20 PM
its not abuse if u do it lovingly francis :lol:
i would nevr do it if i thought it was doing harm

:lol:

Yeah my car seems to love seeing the redline now and then anyway. :D
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kyleseo
Stage 5
Francis
Jan 25 2008, 10:23 AM
Would you say sort of 6,000 - 7,000rpm on a regular basis, providing everything has been warmed up, would be perfectly safe?


regular as in every gear change then no it won't be doing the engine any favours.

regular as you having a bit of a blast every so often she'll be fine if she's looked after.
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Levin BZR
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Mine hits the rev about at 8400rpm. :P
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Peter
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Stage 6
Limiter comes in at 8400rpm for me, i've found it way too many times to enjoy, my car makes peak power at about 7700rpm
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AceSniper
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Global Moderator

also add if you are 5 or 6speed I think 6speed is lower cut? check your oil heaps most dead 4age's are from no oil, the other few are blacktop's with throwen rods :unsure:


Im not sure about mine at 9800... power is still very strong and wants to keep going :blink:
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Peter
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Stage 6
mine is a 6speed and it goes to 8400rpm
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BubbaBZR
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Stage 3
I've a six speed, and the rev counter said it hits around 8300-8400 althought the rsm maximum revs was 8515rpm.
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BZ-G
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aka Hyper Rev 4...
My limit is about 8100rpm...

I love buncing on the limiter.... don't mind it at all... since the engine can easily go more than 9,000rpm with an aftermarket ECU and some mods...

On the race track i always rev up to the limiter (which doesn't have more power) then change gears since when i up shift, i want the next gear to be as high as possible so i can maintain the torque and also less reving gap to the power output...

AceSniper,Feb 1 2008
04:48 AM
blacktop wont hold more than 9000rpm ;)

true... but only if you do some heavy mods... I know a few japanese modifying companies do compete engine kit that produces over 200ps and rev limits around 9000rpm or more...

I know a friend of mine stupidly increase the rev limiter to 9500rpm on stock black top and after a few drags with a RX7 (FD) he blew the engine up.... <_< :(
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dub-levin
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Stage 6
dont know where it bottoms out but i have had it up as far as 8500 before i change gear. and it sounds like there is still more in it.
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BZ-G
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aka Hyper Rev 4...
AceSniper
Feb 2 2008, 11:02 PM
Its abit strange the broken conrod thing on blacktops, I was pushing one with stock rods to 9k almost every week for 2years :D with no issue (102kw atw), yet others fail asoon as there held at a higher rpm, I wouldnt want to try and get more power from one unless the rods are upgraded.

I think tomei and jun makes upgraded con rod and also crank shaft too... where toda make 3 different upgraded piston heads...
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AceSniper
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Global Moderator

Jun rods are hmm over 2k nz I think :o

stock crank is fine, Im using H-beams, and toda pistons, the 3 they make are for overbore sizes
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Peter
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Stage 6
I was under the impression that hitting limiter often isn't a good thing. right or wrong?
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AceSniper
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Global Moderator

nah its not the best thing, not really something you want to throw at stock internals all the time, hitting it dosnt make you quicker :lol:
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BZ-G
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aka Hyper Rev 4...
AceSniper
Feb 3 2008, 04:35 AM
Jun rods are hmm over 2k nz I think :o

anything from jun and tomei aren't cheap... probably have to sell 1 of my kidneys and a leg i guess.... :rolleyes:
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dub-levin
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Stage 6
of course. anything to high a rev limit is bad for the engine. but then again you need to get it near the red now and again to help push the crap out the back end and clear the system. i think the average time for gear change is about 4k rpm on these engines
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BZ-G
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aka Hyper Rev 4...
AceSniper
Feb 5 2008, 02:37 AM
BZ-G, If you want to go h-beam rods over silvertop ones let me know, mine are very nice :lol: find pics in my showroom thing

ok sure... will let you know... just gotta do one thing at a time... :lol:
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devo
Stage 6
lads i dont no about yous are levins but my levin tops out exactly at the redline which is 8000rpm yet i see levins on u tube going to 8700rpm and more why is this im sure some lads on this site can push there levins further i heard tho this aint very healthy for the engine would love to no wat all urs top out at tanks :wave:
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Wolftown
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Stage 5
About 8,250 on the Apexi RSM, its supposed to be able to set the limit where you want it but i've never tried to go over what its at now.
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devo
Stage 6
do u not tink might put bit of strain on the engine or have u upgraded cams etc
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Mikey Jay
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Stage 6
I've never hit the limiter so don't know

Sorry
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BZ-G
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aka Hyper Rev 4...
it depends on what the guys have done to the internal engine parts to increase the rev limit... mostly cams make the most difference... also programmable ecu's can alter the rev limit too....
some people will say it's bad for the engine, some say it's ok or good for the engine.. so mixed opinion on that...
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devo
Stage 6
tanks bzg. mikey u have never hit the limiter why is this i hav hit my limiter so many times iv lost count :whistle:
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Levin BZR
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About 8400 rpm!! :D
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MAC_HATER
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Stage 4
Mine will limit at exactly 8,000RPM which is fine - toyota put the redline there for a reason - not as a sign to say "things go faster after there!" :lol:

you feel it pick up then about 5100RPM it really gets going till 7800RPM then from 7800RPM to 8,000RPM you can feel it losing power - so no real need to go faster than 7800RPM :P

you are kinda asking for a rod to snap or a valve to fail or some other catastrophic problem if you over rev it - sure if you have made mods to it and its Rated to a certain RPM then go crazy - but the Stock motor is Designed and Rated for 8,000RPM so not much point in risking damaging your engine for a few extra KMH in a gear change :o
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AceSniper
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Global Moderator

well mine used to be at 9500rpm, but on the dyno the power was still going up so bumped it to 9900rpm, this is off apexi-RSM/tuneable ecu. Still dont feel any drop off... but I don't want to push more really as I don't know what the oil pump can handle
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Francis
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Chasing the Touge

Mikey Jay
Apr 28 2008, 08:25 PM
Don't want to hurt my baby :P

That's why

Have a self imposed limit of just over 7000rpm
(and from my rolling road printout the power peaks just before then anyhoos so no need to keep revving)

It won't do any harm because the limiter is there for that very reason. It cuts the power before it can do any harm!

If anything you're encouraged to take it to the redline now and then to get rid of any carbon deposits that have built up from granny driving around town. :P :D

I usually try and take it to the redline a couple of times every journey once it's warmed up for 20 minutes or so for that very reason.

Plus yeah, the power peaks just before then, which is why you want to ride the power out and then when you change gear you are right back in the power band again. :cheers:
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Mikey Jay
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Stage 6
Buuuut, in my case, most of my journey is motorway rather than granny driving round town :P

So surely won't get carbon build-ups in that case?
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devo
Stage 6
mikey be right in sayin they peak jus after 7000rpm my levin peaked at 7350rpm and lost bit of power after tat im going to leave my limiter as it is if toyota new the car could handle anythin over tat they would hav set it higher. crazy tat ace can nearly go to 10000rpm but we all know his thing is a beast fair play :bow:
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