Engine Rev Limit - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

liluxiaorealnew · 07-26-2013, 11:36 PM

So i noticed my 86 wont rev over 7500. is this because computer limit? my 86 is MT and stock. any track pros out there know whats happening? thanks

Tansey86 · 07-26-2013, 11:41 PM

Your engine not blowing up is whats happening.

Toma · 07-27-2013, 12:21 AM

Quote:

Originally Posted by Tansey86

Your engine not blowing up is whats happening.

Factory set rev limiter.

Tansey86 · 07-27-2013, 12:40 AM

Quote:

Originally Posted by Toma

Factory set rev limiter.

Yeah. Its there so you don't over-rev and blow up your engine. Isn't that what is going on or am I missing something?

Fast_Freddy · 07-27-2013, 02:44 AM

Quote:

Originally Posted by Tansey86

Yeah. Its there so you don't over-rev and blow up your engine. Isn't that what is going on or am I missing something?

No, you're dead on the money. The factory rev limiter is there precisely for people who post threads on forums asking why they can't over-rev their engine until it blows up.

Captain Snooze · 07-27-2013, 02:54 AM

You can always try changing down to 2nd gear at 100mph let the clutch out and see how many rpm you can reach before disintegration.

bkblitzed · 07-27-2013, 03:00 AM

Quote:

Originally Posted by liluxiaorealnew

So i noticed my 86 wont rev over 7500. is this because computer limit? my 86 is MT and stock. any track pros out there know whats happening? thanks

this your first time driving a car?

EAGLE5 · 07-27-2013, 03:13 AM

Quote:

Originally Posted by liluxiaorealnew

So i noticed my 86 wont rev over 7500. is this because computer limit? my 86 is MT and stock. any track pros out there know whats happening? thanks

They're basically rudely telling you that the rev limit is there for a reason. It keeps the engine from breaking. It's possible for a custom tune to raise the limit, but if it goes much higher, you'll have big problems. It'll probably take at least a tune and new springs to go to a higher rev limit consistently. Then maybe you'll need some water pump mods too.

lexusb3 · 07-27-2013, 03:25 AM

I tuned and got up to 8,000 rpm but I wouldn't go
Higher lol

mad_sb · 07-27-2013, 08:31 AM

Quote:

Originally Posted by liluxiaorealnew

So i noticed my 86 wont rev over 7500. is this because computer limit?

Yes, it explained in the owners manual

Quote:

Originally Posted by liluxiaorealnew

my 86 is MT and stock...

No point in even getting close to the limiter in stock form since power falls off well before.

regal · 07-27-2013, 09:49 AM

Quote:

Originally Posted by mad_sb

No point in even getting close to the limiter in stock form since power falls off well before

With the torque dip you have to keep the car above 5k. If you shift at max power ~7k then you are only working with a 2krpm band. The gears aren't short enough. I and many others think the way to drive this car is to keep it over 5k and "bounce" the rev limiter or ideally just before it obviously. Maybe that's why my DI seals are shot but the car has a 7400rpm rev limit to be used, just because power is dropping after 7k doesn't mean you don't rev past there. Just my opinion.

wparsons · 07-27-2013, 09:53 AM

It doesn't matter if it makes less power after 7k rpm, when you factor in the torque multiplication from the gear you're in it will ALWAYS put more power to the wheels at 7400 (or even 8500) rpm than it will in the next gear after you shift.

Mikem53 · 07-27-2013, 10:11 AM

Is this for real..? Get a clue people..

FastWhite · 07-27-2013, 10:37 AM

Just turn it off.

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07-26-2013, 11:36 PM	#1
liluxiaorealnew Member Join Date: Mar 2013 Drives: 86 Location: Australia Posts: 16 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Engine Rev Limit So i noticed my 86 wont rev over 7500. is this because computer limit? my 86 is MT and stock. any track pros out there know whats happening? thanks

07-26-2013, 11:41 PM	#2
Tansey86 Senior Member Join Date: Sep 2012 Drives: 2003 Subaru Outback Location: Long Island, NY Posts: 1,318 Thanks: 154 Thanked 529 Times in 300 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Your engine not blowing up is whats happening. __________________ " I know a lot about cars, man. I can look at any car's headlights and tell you exactly which way it's coming. "

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07-27-2013, 02:54 AM	#6
Captain Snooze Because compromise ® Join Date: Jan 2012 Drives: Red Herring Location: australia Posts: 7,818 Thanks: 4,050 Thanked 9,551 Times in 4,195 Posts Mentioned: 60 Post(s) Tagged: 0 Thread(s)	You can always try changing down to 2nd gear at 100mph let the clutch out and see how many rpm you can reach before disintegration.

07-27-2013, 03:25 AM	#9
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07-27-2013, 10:11 AM	#13
Mikem53 Senior Member Join Date: Apr 2013 Drives: FR-S 6MT Location: Somewhere in Space Posts: 1,565 Thanks: 500 Thanked 882 Times in 433 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	Is this for real..? Get a clue people..

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