1st Generation Specific 1979-1985 Discussion

Gsl-se Transmission

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Old 06-07-2003, 10:37 AM
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Hey all,



Anyone know how much power a stock '85 GSL-SE transmission will be able to handle?



Thanks,

Larry
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Old 06-07-2003, 10:46 AM
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depends on the condition of it and the way you drive, 220-250rwhp is prolly a safe guess



mike
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Old 06-07-2003, 11:12 AM
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Mike,



I am installing a 20b twin turbo into that car. It is reted at 300 Hp, any tips on a better transmission that will work in my car for 300-400 hp?



Larry
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Old 06-07-2003, 12:08 PM
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rotarynut

Currently running a 83 gsl trans and pushing 400 rwhp. ( 13b turbo 1st gen ) In the last year only gone through one trans, let go in secound gear at 7000rpms. My 60 foot times are not very good, 2.0 range. I am easy of the line and secound gear. It will hold up to allot of abuse but it does depend on your driving habits. I do not think it will hold up to the torque of a 20B.

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Old 06-07-2003, 01:32 PM
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find a turbo 2 tranny, they do fine with the 20b power



mike
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Old 06-07-2003, 02:42 PM
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Will a turbo II transmission fit easily into a 1985?



Larry
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Old 06-07-2003, 08:43 PM
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rotoarynut

the turboII trans will bolt to the motor but the trans mount is in a differant location. The shifter is set back 2 inches also. Then you will have to get a driveshaft made to mate the turboII trans to your third member. the output shaft is larger.

chuck
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Old 06-08-2003, 01:24 AM
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A 20B FB would be fun. I will build one sometime.I hope my T2 powered 84 will be enough for now. The T2 tranny holds up well.Mike should know.His FC has a 20B in it.Make sure you get a S4 T2 tranny.Easier to make a mount for.
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Old 06-08-2003, 01:25 AM
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Originally Posted by sleeper7' date='Jun 7 2003, 09:08 AM
rotarynut

Currently running a 83 gsl trans and pushing 400 rwhp. ( 13b turbo 1st gen ) In the last year only gone through one trans, let go in secound gear at 7000rpms. My 60 foot times are not very good, 2.0 range. I am easy of the line and secound gear. It will hold up to allot of abuse but it does depend on your driving habits. I do not think it will hold up to the torque of a 20B.

chuck
That sounds like quite a 2 rotor FB you have there. Welcome.
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Old 06-08-2003, 11:18 AM
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Racer X,



What year had the S4 TII transmission? 90-91?



Larry
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