Already thinking about going th400 [Archive]

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shadowbandit

11-11-2016, 05:57 PM

So like the title says im already thinking about going to a 400 with a brake. I know i have 3 passes at the track with the new set up but i think the car with the 400 and brake it would improve my 60 foot time a tone i was turning a 1.7 need to be down low like 1.4-1.3 sixty foots so i just seeing your guys options on the matter. And sorry left the caps on lol. If you want info on set up just ask

firebird_1995

11-11-2016, 08:08 PM

What do you currently have?

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shadowbandit

11-11-2016, 09:25 PM

Pro race 4l60e from frank with a PTC 36-3800 stall

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Camaro96

11-11-2016, 10:17 PM

Our you running a brake on your current set up?

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dawdaw

11-12-2016, 07:12 AM

Sounds like you have something Going on. Converter is to tight, gearing wrong, motor aint making enough power etc... i know a few people that sixty foot and go fast with a 60e.

TravisMcGill2000

11-12-2016, 08:26 AM

What he said^^^. Been 1.33 60ft on 4l60e

SSlowBoat

11-12-2016, 08:31 AM

Cahall

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CPT

11-12-2016, 12:22 PM

We actually see cars 60 ft worse after a transbrake TH400 swap compared to a footbrake 4L60E. The 3.06 first gear ratio of the 4L60E is far superior over the 2.48 first gear of the TH400. The car will also average around a .1 second slower with a TH400. When you say "PTC" converter, do you actually mean PTC or are you confusing PTC with Protorque?

Frank

shadowbandit

11-12-2016, 12:32 PM

Yes pro torque lol frank and I just need some people that have been faster then I have to smack me on the back of the head so 60e it is then

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dawdaw

11-12-2016, 01:22 PM

What et and mph? Weight? Rear gear? Engine combo?

Injuneer

11-13-2016, 12:49 AM

TH400 sucks up a lot of power. I had engine dyno and chassis dyno numbers with my original T56/McLeod Street Twin/12-bolt. At 762 flywheel HP, with the T56 we lost 12.5% at the rear wheels. With no other changes, other than a TH400 with a non-locking converter (no brake) it lost 22%. Then try and enjoy driving on the freeway a 70 MPH/almost 4,000 RPM (w/ 4.11's). Gear Vendors wasn't cheap.