ive seen it posted many times that the stock 3.27 gear ratio is perfect for a turbo setup because you dont go through the rpms as fast. now would that still apply to a car with an auto tranny? you dont lose boost with an auto when it shifts, so would it matter if the car went through the RPMs faster?
4.10s in a turbo automatic?
kyle2002stang!
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ive seen it posted many times that the stock 3.27 gear ratio is perfect for a turbo setup because you dont go through the rpms as fast. now would that still apply to a car with an auto tranny? you dont lose boost with an auto when it shifts, so would it matter if the car went through the RPMs faster?
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4,411 Posts
I agree. However I am going to run 4.10s in mine so I can at least try and see the difference between that and 3.55's (which is what I will eventually go to with a stall. Reason I am staying with the 4.10 is because the way it was explained to me is you will have less turbo lag. Now I know its such a minimal amount but if you have them in why not try the difference for yourself? If you dont have 410's yet I wouldnt buy them and go with stock or a set of 3.55s
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1,703 Posts
My 3.27s compliment my turbo 5 speed car very well. I wouldn't do 4.10s.
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18,912 Posts
I have gone through this with my car. Ditch the 4:10s. I run 3:55s and really like them
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18,912 Posts
doubtful but depends on the turbo and tire size.
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4,837 Posts
I wouldn't do 4.10's, need to have a taller gear so it puts load on the motor and will build boost better.
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3,453 Posts
i have 4.10s in my auto s/c... would be better if you got a 3000+ stall
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Debating this myself. Are you locking the converter in 3rd? 3.73s with a 26 inch tire will be good for about 135 trap. With a turbo auto you can load it up at the line or on the brake. So you never loose boost if you have a 3000 plus stall.
I run 3.27s and a 26 inch et street. I'm looking into 3.55s for now since I plan on trapping over 135 in the near future. Possibly going to a 4.10 with 28s. Almost the same final drive as 3.55 and 26 tire.
What is your goal for the car?
edit: I think the trap speed I posted is reving out to 7k
I run 3.27s and a 26 inch et street. I'm looking into 3.55s for now since I plan on trapping over 135 in the near future. Possibly going to a 4.10 with 28s. Almost the same final drive as 3.55 and 26 tire.
What is your goal for the car?
edit: I think the trap speed I posted is reving out to 7k
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3,112 Posts
U are a turbo car u dont want 4. Anything gearing...ur not going to load a turbo like it should with 4.10s because u would go thru the rpm to fast...lower gear= more load on turbo= bulds boost quicker= holds the boost longer= faster car...yall stop making this complicated lol..
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I don't have traction until 3rd gear with 3.27s. It's just a fact of going fast. Learn to drive with a lighter foot and only get on it hard when you have a slick or decent Dr under it
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3,112 Posts
i was just joking dude lol...
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You need some tires then
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I have tires. I use them at the track. Dr is too expensive for all the street driving I do.
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18,912 Posts
yeah I pretty much dead hook on the street with a 28in tire and 3:55 gears...
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