Playboy06

I've had multiple people tell me now the "Hot Thing" for the V6 Mustangs are to remove the Rev Limiter?

I had a couple questions for people who have done this or know about it;

1. What are the Pro's and Con's of removing this part?

2. Does it void anything in the Warranty if they see that it has been removed (Obviously i'd put it back on if I went in for a check up, etc)

Thanks!

TJ

Double post

TJ

Ford has installed a program (aleast on the GT and I assume on the 4.0 also) when you get within about 300-400 RPMs of your redline rev limiter the computer starts pulling timing which in turn pulls power. So if you remove the rev limiter you won’t lose any timing/power and if you shift (5spd) a little higher say 200 rpms and take the full power from the 300 rpms since the rev limiter has been removed for a total of 500 rpms more of full power on each shift and 1500 rpms on three shifts during a ¼ mile run.

The con of course with the rev limiter removed with a 5 spd if you power shift don’t miss a gear.

You could also just move the rev limter up to 6500 rpm's incase you miss to help catch incase you don't lift soon enough.

SparkYZ

Personally, I wouldnt ditch the rev limiter. I've missed a gear a few times, and things could have gone ugly if it wasnt there.
If your comfortable with your shifting ability, go for it.
I'd rather be that little much slower, than screwing up and floating the valves.

Fizzie06

oops

blackfoot

our motors detonate at 7500rpm.. accidentally hit that .. then oops

Playboy06

so removing the 'rev limiter' for an automatic would be useless?

I know I can still go 1 2 3 D in my Automatic, but is it worth it?

Has anyone here tampered with it?

justang05

with the x-cal you can make it shift later at wot by mph, dont know if you would gain anything from that or not. Unless youre modded, it probably wouldnt. Our engines can rev to 7500 rpm?!? talk about an underated rev limiter...

blackfoot

any engine in the world can rev as much as it wants.. do you want to .. no.. not unless it can do it safe.. at 7500 our motors will go boom... meanwhile.. take your civic and you can probobly hit 13000 then it will jump a cam tooth or soemthing lol.

TNT1968

History repeating itself.

At one time there were several very low mileage Boss 302 Mustangs because when they were new the owners disconnected the rev limiters which improved the quarter mile times- but then they missed a shift and blew the engine. The cars sat for years with low miles until restoration time. Raising the limit would be the smart thing. You probably won't see the limit with an automatic unless it's geared and has intake/exhaust mods. Perhaps N2O would help too.