+1th400...
I run a Lentech Full manual Auto and love it.
My TH400 auto swap - ModularFords.comNot to whore out your thread or anything. But can someone tell me what is needed to run a TH400? Or point me to a link or something.
Thanks,
Daniel
TH400 w/o question. Making the switch myself.
If it's mostly a track car, I'd say the TH400. If you drive it on the street (like the 7 hr trips you mentioned) then a 4R70W is the way to go.
I'm running a 4R70W built by a local shop and it's awesome. With a 28" tire and 3.55 gears, I can cruise at 70MPH on the highway just under 2k RPMs (I was running a 26" tire with 3.31 gear before I made the switch).
If you decide to go with the 4R70W, check your valve body carefully. I've seen both PA and Lentech valvebodies come bad right out of the box.
Love the avatar. " Ima Lead Farmer MuthaF$&@ker!" -Sgt. Lincoln Osiris.
:rockon:
If he doesn't plan on making more than 800ish rwhp, then yes, a 4R70W would be a better choice b/c of the O/D.
:rockon:
what can the built 4R70W's handle? I read the 4R75w's in the Mach I are good to 700 out of the box.
Built right, a 4R70W can handle more, but again, it's gotta be built right.
This shop has several cars running 8's and 9's on full weight turbo cars with a 4R.
That being said, I would still take a TH400 for an all out drag car......