Going auto with TH400 in 03 cobra

[stanzione88]

I did a C4 with 3.73 gears, 3000 stall and its a solid setup.
I also will be using MSD 2step to leave the line.
Good luck! :coolman:

 

[BADASS03SVT]

I did a C4 with 3.73 gears, 3000 stall and its a solid setup.
I also will be using MSD 2step to leave the line.
Good luck! :coolman:

why did you only go 3k?

 

[03cobra283]

why did you only go 3k?

My converter from Lenny is only 3000-3200. Ive had no problems so far running with my C4. There are ups and downs to all setups. A 400 runs cooler then a C4, but then a 400 needs an adapter plate to fit to the mod motor.

 

[BADASS03SVT]

My converter from Lenny is only 3000-3200. Ive had no problems so far running with my C4. There are ups and downs to all setups. A 400 runs cooler then a C4, but then a 400 needs an adapter plate to fit to the mod motor.

its not that you would have problems...its that your leaving et on the table....

 

[Vsix]

Where did you guys get the automatic bell and flexplate on the C-4 conversions ?

 

[BADASS03SVT]

Where did you guys get the automatic bell and flexplate on the C-4 conversions ?

PA and JW have them both

 

[03cobra283]

its not that you would have problems...its that your leaving et on the table....

Yea if you have the wrong setup it will slow you down at the track. Once I get the boost turned up, the cars really gonna move. I had the converter setup with running high boost and the high HP result of my boost. I know that your not gonna want a too high of a stall because our cars have great low-end power as stated before.

 

[BADASS03SVT]

Yea if you have the wrong setup it will slow you down at the track. Once I get the boost turned up, the cars really gonna move. I had the converter setup with running high boost and the high HP result of my boost. I know that your not gonna want a too high of a stall because our cars have great low-end power as stated before.

Ill know the answer to that in a couple weeks. I agree the lower stall should be better. but Ive been running a 5k stall the last 7 passes on the car and Im pulling the best 60s and ets I ever have. Im going to swap it to mid to high 3k and see what happens. 1.38-1.44 on Eaton power.

2 ways to look at a converter. set the stall at or just below your peak tq OR 1500rpm below your shif tpoint is how a lot of "racecars" do it. I wont be changing much else so itll be a good comparison

 

[03cobra283]

Yea let me know the results you have. Im waiting a little bit and then im gonna turn my boost up and see what I can get. Hopefully the converter seems to well where its at. What does your car max out when you foot brake it?

 

[03cobra283]

Ill know the answer to that in a couple weeks. I agree the lower stall should be better. but Ive been running a 5k stall the last 7 passes on the car and Im pulling the best 60s and ets I ever have. Im going to swap it to mid to high 3k and see what happens. 1.38-1.44 on Eaton power.

2 ways to look at a converter. set the stall at or just below your peak tq OR 1500rpm below your shif tpoint is how a lot of "racecars" do it. I wont be changing much else so itll be a good comparison

You pull some nice 60's with a eaton, im sure alot of it is gear and tire size

 

[BADASS03SVT]

Yea let me know the results you have. Im waiting a little bit and then im gonna turn my boost up and see what I can get. Hopefully the converter seems to well where its at. What does your car max out when you foot brake it?

never tried footbraking it..lol

 

[03cobra283]

never tried footbraking it..lol

damn with all those runs you werent a little curious to see what foot braking would get you? lol I wanna try from a dead idle and smash it when the light hits to see what 60' I get then. Just curious lol

 

[BADASS03SVT]

damn with all those runs you werent a little curious to see what foot braking would get you? lol I wanna try from a dead idle and smash it when the light hits to see what 60' I get then. Just curious lol

nope...did one off idle to make sure the car felt ok then all out baby :rockon: