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Technical => Drivetrain Tech => Topic started by: jpc647 on May 09, 2008, 08:27:27 PM

Title: 1988 turbo coupe auto vs manual question
Post by: jpc647 on May 09, 2008, 08:27:27 PM
Does anyone know if there are any differences between  a 1988 thunderbird turbo coupe and a 5 speed car other than the tranny? I'm looking at a auto car, but I know they aren't rated for the same hp. Is the tranny the only difference?
Title: 1988 turbo coupe auto vs manual question
Post by: slowfoxbird on May 09, 2008, 08:48:35 PM
No, the rear ends have different ratios as well.  If I remember correctly, the manual rear end has a 3.55, and the auto has a 3.73.  I can guarantee someone will correct that if I am wrong, as I dont have a mental rolodex full of  like that.
Title: 1988 turbo coupe auto vs manual question
Post by: TurboCoupe50 on May 09, 2008, 09:01:24 PM
Main HP difference is due to less boost on the autos and single exhaust... Other than the rear gears already mentioned AFIK that's it...
Title: 1988 turbo coupe auto vs manual question
Post by: vinnietbird on May 10, 2008, 12:53:15 AM
Don't forget,they also have different shift handles,and the 5 speed car comes with a cool extra pedal next to the brake pedal..LOL.
Title: 1988 turbo coupe auto vs manual question
Post by: Tbird232ci on May 10, 2008, 08:58:34 AM
The auto cars also had a different computer.
Title: 1988 turbo coupe auto vs manual question
Post by: TurboCoupe50 on May 10, 2008, 10:14:06 AM
Quote from: Tbird232ci;218176
The auto cars also had a different computer.


True... But I've ran the 8UA in a 5 speed TC and 'cept for the codes it threw due to not finding the solenoids in the automatic, couldn't tell a difference... Made full boost in all gears just like the stick EEC...