I was wondering if manual transmission cars have rev limiters? Can you put your foot in it and damage the engine by exceeding the redline or is there built in protection? Kind of a basic question but I have never seen it addressed here.

Thanks

 

the limiter is 6,250 i think.... ive hit a few times since this is the first manual ive driven, it seems to just automaticly cut the gas when you hit it, no damage to the engine just your ego

 

good to know, thanks

 

Yours is probably now set to 6800 via your SCT tune from Bamachips. Next time you plug in your SCT, run it through the options to see where it is set.

 

6800! wow, is ther potential for damage at that RPM, I realize the Ford setting is conservative but is 6800 to high?

 

I haven't run her up that high yet but from what I've read, 6800 should not be too high for occasional use (I would not be comfortable running flat out for a long time at 6800) after you have the car broken in for a while.

Plus, I think the Ford computer still tries to slowly pull power as you near the limit before the abrubt cut out that you feel at the stock 6250 setting. Power actually starts getting pulled away at 6000. Sort of softens the blow to the drive train.

No real need to keep it up that high anyway as the horse power curve starts falling off before 6000 anyway.

 

Does the engine still make good power up that high with Doug's tune?

 

yes, with dougs tune, all the torq management that cuts power as the limiter gets close is gone! it will hit it good and hard, and pull right up to it.

 

I am wondering...can you tell us where you got your information about the slow pull at 6000 et cetera? I am curious...you have not personally experienced your rev limiter, yet you tell us what to expect. I am asking you to take it out and hit it and them post-up what it felt like.

I'll check back later!

Thanks,
Russ

 

The real reason for bumping up the rev limiter is to avoid the "I'm such a dumb-a$$" feeling when you experience the limiter induced nose-dive when you out floggin' your Stang.

I have hit the limiter on the track when she was stock. It hits hard at 6200 rpm or so. It throws you forward in the seat and the first thing I thought was "Oh sh*t! I broke something" and "the wife's gona kill me." That was followed by "Nah, I'm just an idiot."

While the stock Ford valve train is said to be able to handle rpms ofver 6250 after an appropriate break-in, it takes more than a CAI and tuner to take full advantage of the rpms above 6000. On the track after I installed my CAI and tune from Brenspeed, I managed the 1/4 mile in 13.4 seconds at 105 mph, in 3rd gear at about 6200 rpm (03 octane tune, stock street radials and stock 3.55 gears). 2nd gear at about 6000 rpm puts you in the > 60 mph range. There is still power in this rpm range but it is on the downward slope of the HP and TQ curves. Staying on it much farther over 6000 is a waste of time on the drag strip for me. I expect to dyno this set-up in the next few weeks and I'll post back after I do.

 

I have to agree with LP603, it's somewhere around that RPM when the rev limiter kicks in. As it hits the limiter, it's no a harsh cut-out, but more more of a minor sputter.

Check out my video I made with Doug's 91 Race Tune and see/hear for yourself.

video thread