i was wondering if my 84 se has a speedlimiter because it doesnt seem to go over 4200 rpms in 4th gear. i think thats around 100mph as its straight up and down or higher on the speedo.

Yeah i was wondering that to i had mine toped at about 100 to

Dunno.. I've had my '87 GT over 105 so far.. Need to replace the bearings before I do that again though! 15 year old bearings and 105+mph is kind of scary... - Bob Williams

I've had my Fiero well over a 100mph, in and around 140mph. It was pretty much just making noise at that point. No power to even make another 1mph.

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Auto racing fans fall into two categories:Tattooed,shirtless,sewermouthed drunks, and their Husbands

No speed limiter, but 85-87 2.8's have a rev limiter.

The 88 2.8 has a rev limiter aparently, but it is set so high, that you will never rev hard enough to reach it.

Don't know about a rev limiter on the 2.5;s, but they do not have a speed limiter either

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of course they do....

It's called "horsepower" or the lack there of!

Olliver

.

[This message has been edited by Jake_Dragon (edited 04-20-2002).]

No speed limiter in Fiero's... if you hit one, you know you did.

My quad ECM has a limiter at 114mph, and when i hit it, feels like i got on the brakes. Then again, I have almost twice the horsepower than a duke

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1988 Quad 4 Coupe 5 speed
1986 GT 5 speed, 1984 SC Auto
AOL: LastMinuteBastrd AIM: SavedbyJebus

Say it aint so... I am in the middle of the Quad4 swap now, and the first thing I wanted to do was see how fast it will go...
Using the 91 Skylark ECM (Auto)

;<

Jester

quote Originally posted by Standard: No speed limiter in Fiero's... if you hit one, you know you did. My quad ECM has a limiter at 114mph, and when i hit it, feels like i got on the brakes. Then again, I have almost twice the horsepower than a duke

Find a w-41 chip if you can, or contact mantaparts (www.mantaparts.com)

It raises the rev limiter to 7500 rpm and removes the speed limiter. Had my coupe up to 120 before I ran out of balls.. The car still had plenty left.

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1988 Quad 4 Coupe 5 speed
1986 GT 5 speed, 1984 SC Auto
AOL: LastMinuteBastrd AIM: SavedbyJebus

ive never ran outa power even when im goin 120, but ive got a differant tranny in mine, dought that makes it any differant though. and ive got the 2.8.
but ive never topped mine out, guess i should go do that sometime

My 84 SE will hit 5,000 rpm and beyond easily. I have my shift light set at 4,850 but somtimes I do an WHOOPSIE. Car has 207500 miles on it.

No stock Fiero has a speed limiter. The only limit is horsepower and wind resistance.

Phil

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GTDude
25 years GM experience

True. Pontiac knew the Fiero couldn't out-run it's tire rating. I've never seen a chip with a speed limiter only rev limiters (which got removing in mid-86 on the V6's).

MY 87 seems to have a rev limiter at 6000 rpm. I've only hit it a few times in 2nd gear at 60 mph. Scared the crap out of me when the car shut off. I thought I blew the engine.

If it's there, it would be at 6000 off and 4000 on. 6012 and 4008 to be exact. But I've never seen a post 86 chip with the revlimiter. Could be though.

I have a speed limiter on my 3.1 DIS, it's set at 115, detach the vss wire (???) It has the 4 speed OD auto. It also has a rev limiter at 6,000 in drive and 4000 in park/neutral. But no stock fiero has a speed limiter, but I can tell you that I did hit rev limiter on my iron duke in drive/3rd gear, if my TCC was working it probably could have gone alittle faster.

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Matt D
1984 Indy Fiero (auto, but not for long)
1985 2m4 4T60, DIS V6 3.1
3800 to be...wait,
change of plans, twin T3 turbocharged!

Our 84 has one in the steering wheel evidently. The one, only & positivly last time I drove near 100mph, my knuckles turned so white, I thought the bones were showing thru. Not to mention that awful clatting noise I was starting to hear from the eng compartment. I drove home gingerly, parked it & never told Jane I had just abused her little 2.5 with 100K + miles on it.
Don

smart

I had my my 84 2m4 4cl. 4 speed man. max out at 150Km/p

It still had balls to give but gave no more

The only "limiter" that I can think of on my 84SE is the Valve Float. I have done this a couple of times in lower gears and not paying enough attention to the RPMs.

Easy enough to check, unplug the speed sensor on the tranny, see if it has the same rpm limit, if so, it would be just the limitation of the engine most likely. My 85 2.8 has a rev limiter, hold the throttle down in 1st gear and it shuts off at 6000, then turns back on around 4000.

Robert

[This message has been edited by robertjay (edited 04-24-2002).]

hey how much did you spend on your on your Quad 4 conversion ? - the cost of the motor and tranny (What was needed ?) thanks

quote Originally posted by Standard: No speed limiter in Fiero's... if you hit one, you know you did. My quad ECM has a limiter at 114mph, and when i hit it, feels like i got on the brakes. Then again, I have almost twice the horsepower than a duke

had a 1984 redlined in 4th gear 127mph no speed or rev limiter on it