C4 shift point 85 versus 86
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Joined: Jun 2010
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From: Webster Florida
C4 shift point 85 versus 86
I have an 85 and 86 Corvette, both with 5.7 TPI engines, and both with an automatic. I just got the 85 and noticed that the 85 shifts out of 1st into second at 4000 rpm while my 86 shifts out at 5100 rpm.
The 85 has a shift kit the 86 doesn't. the 86 has a hypertech chip, the 85 doesn't.
I've done the self adjust on both.
what can I do to adjust the shifting of the 85 to 5,000 rpm or is this difference because of the hypertech chip. I've already ordered a hypertech for the 85... the two computers are different.
thanks in advance,
Robert
The 85 has a shift kit the 86 doesn't. the 86 has a hypertech chip, the 85 doesn't.
I've done the self adjust on both.
what can I do to adjust the shifting of the 85 to 5,000 rpm or is this difference because of the hypertech chip. I've already ordered a hypertech for the 85... the two computers are different.
thanks in advance,
Robert
Last edited by rrwebster; Sep 13, 2010 at 03:55 PM. Reason: Wrong Forum
