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  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

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

  • Thread starter Thread starter aj1025
  • Start date Start date Mar 13, 2004

aj1025

New Member
Jul 4, 2003
136
0
0
Tyler Texas
Mar 13, 2004
#1
  • Mar 13, 2004
  • #1
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

New Member
Mar 2, 2004
117
0
0
Mar 13, 2004
#2
  • Mar 13, 2004
  • #2
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!
 
B

BVille99GT

Member
May 1, 2003
283
0
16
Brownsville TX.
Mar 14, 2004
#3
  • Mar 14, 2004
  • #3
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

New Member
Jul 4, 2003
136
0
0
Tyler Texas
Mar 14, 2004
#4
  • Mar 14, 2004
  • #4
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

I fantasize about it being BIG!
Founding Member
Apr 23, 2002
2,120
0
56
not quite here
Mar 14, 2004
#5
  • Mar 14, 2004
  • #5
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.
 
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