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| There has got to be a way to go faster than 80 MPH (Page 1/2) |
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Additivewalnut
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APR 24, 01:00 AM
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I refuse to believe that the 86 SE 4Speed can't go any faster than 80. There's no way. I reach 80 in 3rd gear and I've still got RPMs to spare. Is there a governor? If so, is it possible to bypass the thing? I don't know enough about the Fiero ECM to know if it has a limiter. I can barely pass anybody on the highway.
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Patrick
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APR 24, 03:19 AM
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| quote | Originally posted by Additivewalnut:
I refuse to believe that the 86 SE 4Speed can't go any faster than 80.
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My '84 duke (with a transplanted 5-spd Isuzu) has absolutely no problem getting to 100 mph. I suspect your 2.8 isn't running 100%.
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jessesmith121
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APR 24, 07:28 AM
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| quote | Originally posted by Additivewalnut:
I refuse to believe that the 86 SE 4Speed can't go any faster than 80. There's no way. I reach 80 in 3rd gear and I've still got RPMs to spare. Is there a governor? If so, is it possible to bypass the thing? I don't know enough about the Fiero ECM to know if it has a limiter. I can barely pass anybody on the highway. |
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I really hope you aren't just referring to the speedometer
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RWDPLZ
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APR 24, 08:07 AM
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Check the speedometer against a GPS. My 84 SE 4 cylinder 3 speed auto maxed out at 94mph on Michigan International Speedway, when the speedometer was reading just over 100mph
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Gall757
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APR 24, 09:33 AM
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Additivewalnut
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APR 24, 09:36 AM
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I'll test again tonight with a gps, it just felt so weird. Like it was refusing to go past 80.
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Gall757
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APR 24, 10:00 AM
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Do you have an old catalytic converter?
Have you checked fuel pressure?[This message has been edited by Gall757 (edited 04-24-2020).]
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Additivewalnut
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APR 24, 10:11 AM
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| quote | Originally posted by Gall757:
Do you have an old catalytic converter?
Have you checked fuel pressure?
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I replaced the cat recently, and I haven't tested fuel pressure but I wouldn't be surprised if that was part of the problem since I've been fixing fuel leaks for the past week
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cvxjet
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APR 24, 11:58 AM
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have you tried cleaning the crap out from under the gas pedal..? (Sorry, I just had to..)
I have had my 85 SE V6 4 spd up to 110- that was back around 1987....Now, with a 5 spd and 3.4 block, I could probably go faster, but I am into "G's" not speed....
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David Hambleton
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APR 24, 12:03 PM
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35 years ago, my factory stock 84 SE 2.5L 4 speed topped out at 105 mph; referenced to a mph chart extrapolated from the RPMs. [This message has been edited by David Hambleton (edited 04-24-2020).]
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