TH400 Vacume line
TH400 Vacume line Where is the best place to hook the vacume modulator up on a FAST intake.
I had mine hooked up to the little 1/4 size one on the back passenger side of the intake but I'm having trouble with it shifting from 1st to 2nd and I'm wondering if it needs to be on the brake booster line.
I had mine hooked up to the little 1/4 size one on the back passenger side of the intake but I'm having trouble with it shifting from 1st to 2nd and I'm wondering if it needs to be on the brake booster line.
Ive always put mine on the brake booster line... But only because a lack of 'other' ports to use. As far as I was told a direct line to the manifold COULD produce a stronger vacuum signal, but I never had a problem either way.
Whats wrong with the 1-2 shift?
Whats wrong with the 1-2 shift?
It doesn't want to shift at wide open throttle, you have to get out of it, wait for it to shift and then get back in it.
I might have my rev limiter set too low, I'm going to check that as well but I think I'll move the line to the brake booster like you have yours.
I might have my rev limiter set too low, I'm going to check that as well but I think I'll move the line to the brake booster like you have yours.
Trending Topics
On The Tree
Joined: Mar 2005
Posts: 103
Likes: 0
From: so cal
a th 400 has no lock up typically unless you have a yank i think, and with an ls2 the easiest way would probabley be to use a wot switch directly on the throttle pedal under the dash. if you hit the limiter its probabley not the solenoid, all it does is dump detent (pressure from the modulator) oil so the trans shifts off govenor oil only.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
