Re: 2.3 Turbo Crusing RPM Sweet Spot?
Reply #3 –
Very nice that is has the FMIC on it.
Are the rear brakes disc or drum? '85 originally came with a 7.5" rear end with drums. In '87 they went to a 8.8 rear with either 3.55 gears (manual transmission) or 3.75 gears (automatic). Originally the '85 came with a T3 Turbo (not sure whether .48 AR or .63 AR).
A larger than stock exhaust will allow the turbo to spool quicker. I believe stock exhaust was around 2.25".