hrspwrjunkie said:If you're running a stock GT with a 5-speed, don't touch them. It's geared perfectly to run through the traps in third. 1.34x3.08=4.12. A 3.55 or 3.73 will only slow you down if you can drive the car well. If you're modded, it depends on the mods./No that isn't right. You are looking at trapping in 3rd gear. You trap so high in third gear that you are in the end of the powerband and not making anymore power. You have to decide if you want to shift to the next gear and lose time shifting or just hit the top of third which by then is out of the powerband and you stop making power. I have seen this happen MANY times. When my first stang had stock gears it would trap at around 5600 in 3rd. There is no power left anymore when you are at that rpm on the stock heads/intake.
mackey said:hrspwrjunkie said:If you're running a stock GT with a 5-speed, don't touch them. It's geared perfectly to run through the traps in third. 1.34x3.08=4.12. A 3.55 or 3.73 will only slow you down if you can drive the car well. If you're modded, it depends on the mods./No that isn't right. You are looking at trapping in 3rd gear. You trap so high in third gear that you are in the end of the powerband and not making anymore power. You have to decide if you want to shift to the next gear and lose time shifting or just hit the top of third which by then is out of the powerband and you stop making power. I have seen this happen MANY times. When my first stang had stock gears it would trap at around 5600 in 3rd. There is no power left anymore when you are at that rpm on the stock heads/intake.
super302 said:i love my 3.73's, gas milage aint bad either
hrspwrjunkie said:It's never been a concern with my runs. Shifting into fourth has lost me 3-tenths of a second. And I haven't needed any power at the end of the track because the engine quits making power right when I trap, making the gearing perfect running through at 5200 in third. Since I've outrun guys running slicks and gears on their GTs with out mods or traction tires, with my study of the shift points of the car, I think I've got a sound choice in gear shift points.
mackey said:I think we are both getting confused. I know I am when I read your posts. If you were to shift into 4th with 3.73s you would be alot before the end of the 1/4 mile because of the fact the gears are shorter. You shouldn't shift into fourth if you are on stock gears unless you are making more power than 300hp. Of course if you shift into fourth with stock gears it is going to lose you power and time. But If you are losing .3 over a shift, you better learn to drive.
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