Rev Limiter in a N/A 2.3?

1993MustangNotch · May 17th, 2011, 07:37 PM

Before my old 2.3 motor blew, I could rev that thing all the way up to "orange line", over 5,000 RPM or something like that. I put another N/A 2.3 in, now it only revs up to 2800 in park and in neutral. What's up with this? Please inform me! Thanks!

zonker · May 17th, 2011, 09:12 PM

well its not a rev limiter... it's not enough air, fuel, or spark, or cam timing is way off.

oh and revving a motor to redline in neutral is not a smart or effective way to determine what a rev limit is.

motors aren't designed to see those kinds of revs without some sort of load on them.

Mikel89us · May 17th, 2011, 11:24 PM

Noone ever answered my question before, is there a way to remove the Rev limiter WITHOUT a tuner???

zonker · May 18th, 2011, 03:28 AM

since the rev limiter is within the software program of the eec - the only solution is to re-write the program (tuner), or replace the ignition/injection brain with a seperate programmable computer (standalone).

Mikel89us · May 18th, 2011, 12:57 PM

that means no, thanks, thats all i was looking for, i didnt need an explination. Honda has a resistor in their older ecus that you can remove or change to get no rev limit or higher.

May 17th, 2011, 07:37 PM	#1
1993MustangNotch Regular 1993 Mustang LX 2.3L N/A Join Date: Jan 2011 Location: Boynton Beach, FL Posts: 51 iTrader: 0 reviews	Rev Limiter in a N/A 2.3? Before my old 2.3 motor blew, I could rev that thing all the way up to "orange line", over 5,000 RPM or something like that. I put another N/A 2.3 in, now it only revs up to 2800 in park and in neutral. What's up with this? Please inform me! Thanks!

May 17th, 2011, 09:12 PM	#2
zonker Enthusiast 1991 Mustang LX 2.3 Join Date: Sep 2010 Location: Temecula, CA Posts: 660 iTrader: 0 reviews	well its not a rev limiter... it's not enough air, fuel, or spark, or cam timing is way off. oh and revving a motor to redline in neutral is not a smart or effective way to determine what a rev limit is. motors aren't designed to see those kinds of revs without some sort of load on them. __________________ Rob 1987 Mustang 2.3 LX Convert (T5) project 2.5 N/A HP 1991 Mustang 2.3 LX Convert (A4LD) 1992 Mustang 2.3 LX Convert (A4LD) 41.52 mpg!! 1994 Capri XR2 1.6 Turbo Convert 1999 ZX2 S/R 2.0 Coupe http://zxtuner.com

May 17th, 2011, 11:24 PM	#3
Mikel89us Regular 1991 Mustang 2.3L 11:42 @ 61 in the 1/8th Join Date: Feb 2011 Location: Logansport, IN Posts: 362 iTrader: 0 reviews	Noone ever answered my question before, is there a way to remove the Rev limiter WITHOUT a tuner??? __________________ 1991 Mustang LX 2.3L 5 Speed convert 1989 Ranger 4X4 2.3L 5 Speed Entire turbo kit waiting to be used again.

May 18th, 2011, 03:28 AM	#4
zonker Enthusiast 1991 Mustang LX 2.3 Join Date: Sep 2010 Location: Temecula, CA Posts: 660 iTrader: 0 reviews	since the rev limiter is within the software program of the eec - the only solution is to re-write the program (tuner), or replace the ignition/injection brain with a seperate programmable computer (standalone). __________________ Rob 1987 Mustang 2.3 LX Convert (T5) project 2.5 N/A HP 1991 Mustang 2.3 LX Convert (A4LD) 1992 Mustang 2.3 LX Convert (A4LD) 41.52 mpg!! 1994 Capri XR2 1.6 Turbo Convert 1999 ZX2 S/R 2.0 Coupe http://zxtuner.com

May 18th, 2011, 12:57 PM	#5
Mikel89us Regular 1991 Mustang 2.3L 11:42 @ 61 in the 1/8th Join Date: Feb 2011 Location: Logansport, IN Posts: 362 iTrader: 0 reviews	that means no, thanks, thats all i was looking for, i didnt need an explination. Honda has a resistor in their older ecus that you can remove or change to get no rev limit or higher. __________________ 1991 Mustang LX 2.3L 5 Speed convert 1989 Ranger 4X4 2.3L 5 Speed Entire turbo kit waiting to be used again.

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