Turbo 400 users - Inside Please!
Thread Starter
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Joined: Dec 2001
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From: Columbia, MD
Turbo 400 users - Inside Please! Turbo 400 users:
What rear-gear ratio and tire size are you using??
Also, please indicate if you still drive your car on the street/highway.
I'm changing my setup to a TH400 this season, would like some input.
Thanks.
What rear-gear ratio and tire size are you using??
Also, please indicate if you still drive your car on the street/highway.
I'm changing my setup to a TH400 this season, would like some input.
Thanks.
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Joined: Nov 2001
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From: Chi-Town, IL
I drove my car on the street all the time, took it to the track with my moser 12-bolt with 3.73's and a 3500 converter (non-locking), I spun around 3000 on the highway at like 60-65 on 27" QTP's.........I'm changing my converter to a 4000, and my tire is a 28" now......
For the street its an awesome tranny, especially with the manual valvebody, get a trans brake if you plan on racing it, that will help you a lot, trust me.......
For the street its an awesome tranny, especially with the manual valvebody, get a trans brake if you plan on racing it, that will help you a lot, trust me.......
I'm getting ready to make a change to the turbo-400 with t-brake and a 4000 stall myself. I'm not sure which gear to run though. I currently have a 3.73 with a 26" tire and was thinking about a 4.11-4.30 with a 28-29" tire. Any suggestions or advise would be appericiated.
Thread Starter
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Joined: Dec 2001
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From: Columbia, MD
Well, I would like to keep my highway RPM's as low as can be expected with a TH400. I think I'll try 3.42 rear gears, and 26" ET Drags.
My trap speed should be around 130MPH.
My trap speed should be around 130MPH.
28/10.5 slick + 4.11 when I had the 7.0 litre stroker + 4L60E
I have two gears at home, one is a 3.70 and the other is a 3.50, I think I am doing the 3.70 at this time.
I have two gears at home, one is a 3.70 and the other is a 3.50, I think I am doing the 3.70 at this time.
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With a big powered turbo car launching off a transbrake I wouldn't worry as much about rear gear if you are running a decent converter and still want to drive the car on the street.
The brake will allow you to launch off full boost and the optional 2.75 first will give you plenty out of the hole. I think a 3.42 combo with 28 inch DR's on the street and 26-27x10 inch slicks at the track would work very well and still allow you to get some semblance of gas mileage. I also think you wouldn't need to go quite as high on the stall as an NA car. Maybe 3000stall. Thw extra torque of the turbos really helps
Chris
The brake will allow you to launch off full boost and the optional 2.75 first will give you plenty out of the hole. I think a 3.42 combo with 28 inch DR's on the street and 26-27x10 inch slicks at the track would work very well and still allow you to get some semblance of gas mileage. I also think you wouldn't need to go quite as high on the stall as an NA car. Maybe 3000stall. Thw extra torque of the turbos really helps
Chris