How high can i raise the rev limiter on my auto.

[aj1025]

I would like to raise the rev limiter on my 02 auto gt, right now the rev limiter kicks in @ around 5750 rpms, i'm wondering can i see a benefit of raising the rev limiter on an auto gt, and how high can i raise the rev limiter without damaging the engine or tranny? Could i raise the rev limiter to around 6250 or 6500 rpms, and will i see any benefit of raising the limiter, like lower quarter mile times, or does an 4.6 sohc make no more power past 5750 rpms. I still have the stock 3.27's also. Thanks for any help.

 

[robg860]

actually the optimum shift point for me is 5600 RPM. Unless the car is modified, they die out after the high fives anyway. To raise the limiter get a chip or a power programmer from hypertech. You need to make the car breath better, and get a little more fuel in, to get it to perform better after 5800RPM's. I learned from experience. Before my car got its mods, it also felt obtuse around 5600 RPM!

 

[BVille99GT]

yeah, you will need a custom chip or a programmer. But if you are stock forget it. Buy gears they won't raise your RPMs, but they will climb faster. I had 4.10s on my 4r70w with the Hyper Prog III.

 

[aj1025]

Looks like my best bet is to buy a programmer, but man those things are expensive and on the mustangs from what i read they don't nearly make that much HP as they do on other cars, but well needed for other changes,looks like i'll be saving up some money.

 

[DBMSTNG]

you do not want to rev your car to 6500rpm. the springs in the heads don't like that. the max you should rev a stock 4.6L is 6050rpm which is what the fuel cut-off should be at on your car.