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Can The Stock Engine Rev Past 7,000 Rpm Safely

bustafat

By bustafat,
in Engines & Forced Induction

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joeyjoejoejuniorshabadoo Grand Master

joeyjoejoejuniorshabadoo

Posted
Posted

when drifting and trying to bring the radius of your turn down a bit sometimes you need to bounce it....

mine is set to 7400 and has been there a number of times... never missed a beat... and yes... 25's are cheap enough :)

Equinox Rising Star

Equinox

Posted
Posted
the idea of rev limiters and tachometer shift lights go hand in hand, when you change gears you want the engine rpm to fall back right into the middle of the power/torque area when the motor is just at its peak power levels...(where the hp and trq curves meet/intersect or are closest to each other...within reason of course)

Doesn't work like that. You only want to change when the torque in the rpm range that you will be in in the next gear multiplied by the next gears ratio is higher than the current torque you are making in the current gear.

My SR for example dies off at the top, but at 7000rpm in 2nd gear I'm still making more torque at the wheels than I would be at 4800rpm in 3rd. so I change as late as possible if I'm edging every bit out of it.

W0rp3D Grand Master

W0rp3D

Posted
Posted

my avcr says that mine goes to 7500 quite often, is there an easy way to to remove the limiter, the sooner i blow this engine the sooner i get my arse into gear and build my self a big banger.

W0rp3D Grand Master

W0rp3D

Posted
Posted
Shift into 2nd gear while doing 180km/h should give you an epic failure.

but i still want the rest of the car in one piece.

drive it without any oil lol :) you'll be amazed how long it lasts lol

i need to have some reusable bits left over, like the block.

MrStabby Grand Master

MrStabby

Posted
Posted
Doesn't work like that. You only want to change when the torque in the rpm range that you will be in in the next gear multiplied by the next gears ratio is higher than the current torque you are making in the current gear.

+1 for this.

Re: rev limit, i'd say stick the stock rev limit if you've got a stock bottom end. If you stay off the limiter and have a good tune it should last a long time. Anything higher than that and the risk of damage increases. And its not a linear increase either - IIRC its a square increase, ie the stress at 6000rpm is four times the stress at 3000rpm, not double as you might suspect.

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