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69camaro5speed
December 9th, 2006, 03:02 PM
has any one ever used overdrive under wot with lot of power not sure whats going on i might be asking to much log shows shifts into 4th but motor goes on revlimiter 5800 with 29 tall tire 4.11 gears speed o shows 116mpr about right for drive but shows overdrive on gear log any ideas driving me crazy trans pressures be from 90 to 150plus psi with a mechamical gauge

joecar
December 11th, 2006, 06:39 AM
May need to enter correct gear and tire info in tune.

Line pressure measured with gauge on tap (on LHS of case) should range all the way up to 230 or 250 psi at WOT...

Line pressure 150 psi is not enough (allows slippage) for a WOT shift...

Also need more puctuation... ;)

Joe
:)