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Reload this Page Can't make it past 70mph.

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Old 02-20-2008, 01:09 PM   #1
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Can't make it past 70mph.
So I'm new to this site and I just bought an 87 Camaro with a manual transmission from someone who did not know what he was doing and did more harm than good to it. So I bought it and am in the middle of restoring it. One problem I just ran into is the fact that I can only top out at 70-75 mph, I am assuming that it is a problem with an after market transmission governor that might have been installed improperly. When I do make it to 70 it sounds like I am stuck in a lower gear or that engine braking is on. Any pointer would be nice, thanks.
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Old 02-20-2008, 10:06 PM   #2
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Location: Central NJ
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Car: 86 Trans Am, 92 Firebird
Engine: 408 stroker, 3.1L of raw power
Transmission: Tremec TKO600, 700r4
Axle/Gears: Moser 9", 3:70 trutac, open 3:23

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Re: Can't make it past 70mph.
manual trans? governor? trans braking?

what exactly do you have? A manual trans does not have a governor, an automatic does.
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Old 02-20-2008, 11:15 PM   #3
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Car: 90 Firebird Formula
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Re: Can't make it past 70mph.
My car is an LO3, T5, and I have a governor from the factory. When I hit 120, I get instant fuel cut.
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Old 02-20-2008, 11:45 PM   #4
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Re: Can't make it past 70mph.
true on both counts. No governer in the transmission. Yes on the ECM. 109 is generally that cut point.
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Reload this Page Can't make it past 70mph.
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