Rev Limiter!

NSXNEV · 5 January 2004

Hello Folks-

Took the X out over the weekend and since I had not driven her in many days, was excited to hit the highway...............coming off the on-ramp in second gear......hit the revlimiter (I think...as the car just stopped supplying ANY power...and I looked down at the tach to see needle around 8K rpm!). Nothing else happened, I immediately popped it into 3rd and let off the gas significantly. The car pulls great, as though nothing ever happened. Did I harm anything? How can I check? HELP?!

Thanks in advance-

Neville

MiamieNeSeX · 5 January 2004

Sounds like the rev limiter is doing its job. If I'm not mistaken it limits around 8000 - 8200 rpm.

Armando

KellyJoe · 5 January 2004

No harm no foul. That's what it's there for. You didn't hurt anything if all you did was bump the rev limiter. And I type WAY too slow.

MiamieNeSeX · 5 January 2004

KellyJoe said:
No harm no foul. That's what it's there for. You didn't hurt anything if all you did was bump the rev limiter. And I type WAY too slow.

I was just like you many years ago. Then I learned to type with 2 fingers.......

Armando

Hrant · 5 January 2004

No harm done.

If I recall, Woodwork back in NSXPO 99 during a tech seminar that he was conducting noted that they had tested the NSX engine running at over 8000 RPM for an hour .......... YMMV

nsxhk · 6 January 2004

What happened after that 1 hour?

matteni · 6 January 2004

They reached the ocean!

Seriously - I hit the rev limiter all the time at the track. Besides it being a little embarising, it doesn't hurt a thing.

BTW - the rev limiter is lower (like 7k) until the car is warmed up. I would be much more carefull with a cold car at 7k then a warm car at 8k IMO.

Vytas · 7 January 2004

Woodwork told me that Honda tested the NSX rev limiter by driving an NSX in 1st gear at redine and bumping the rev limiter continuously for two or three miles. No problems. The rev limiter was doing its job.

ALIENT · 8 January 2004

This sounds great..

but what if you have a supercharger on the car?

Vytas · 8 January 2004

but what if you have a supercharger on the car? [/QUOTE]

Makes no difference. I drove a friend's Comptech supercharged NSX thousands of miles bumping the rev limiter countless times. It works perfectly all the time. The car is equipped with a CT supercharger, headers, exhaust, short gears, 4.55 R&P and Tilton flywheel. Redline comes so quickly in 1st gear that if you're not paying attention, it comes up real fast. I don't remember how many times I've bumped the rev limiter in 1st and 2nd while not looking at the tach.

BryanZublin · 8 January 2004

A shift light (or buzzer) is a good device to install to warn you that you are about to hit the rev limiter.

ALIENT · 8 January 2004

Bryan,

I have the (your?) smartshifter w/ buzzer, but it was disabled during the original install of my BBSC (to rule it out on the TCS light issue). Since then I have a AEM EMS and was told that the warranty would be void if the smartshifter was hooked up.

I know that the AEM has a shift light control, I wonder if there are any wiring diagrams to hook it up to the break light and buzzer. Any ideas?

Alient

BryanZublin · 8 January 2004

Alient,
The SmartShift load on the tachometer wire is very low (100K ohms), so it will not impact the operation of the tachometer or any other system in the NSX (TCS, ECU, etc). The SmartShift should work just fine with the AEM if connected to the tachometer wire that goes from the AEM to the tach. Details of the AEM shift light can probably be answered by www.aempower.com

matteni · 8 January 2004

Vytas said:
Makes no difference. I drove a friend's Comptech supercharged NSX thousands of miles bumping the rev limiter countless times. It works perfectly all the time. The car is equipped with a CT supercharger, headers, exhaust, short gears, 4.55 R&P and Tilton flywheel. Redline comes so quickly in 1st gear that if you're not paying attention, it comes up real fast. I don't remember how many times I've bumped the rev limiter in 1st and 2nd while not looking at the tach.

I have no friends this good to me OR that I like this much. Or do they know you took their car and hit the rev limiter coutless times?

If they do know - are they looking for additional friends too as I can send them a resume!

matteni · 8 January 2004

ALIENT said:
Since then I have a AEM EMS and was told that the warranty would be void if the smartshifter was hooked up.

Kind of ironic - isn't it that AEM is threatening to woid your warrantee when - as far as I can tell - they are in the void warrantee business!

ALIENT · 8 January 2004

BryanZublin said:
Alient,
The SmartShift load on the tachometer wire is very low (100K ohms), so it will not impact the operation of the tachometer or any other system in the NSX (TCS, ECU, etc). The SmartShift should work just fine with the AEM if connected to the tachometer wire that goes from the AEM to the tach. Details of the AEM shift light can probably be answered by www.aempower.com

Cool thanks.. I'll look up the AEM stuff.. I may have to pick your brain a little bit to make the buzzer work.

Rev Limiter!

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