Predictions TH400
All I can do is compair what my swap did in my 4200 lb boat. I picked up 3-4 mph N/A and went from 11.40's with the 60 to 11.0's with the TH400. Also went 9.90's on Nitrous at 135 coming off the brake at 2800 and nitrous not coming in until 4600. You will love the PTC converter. Mine is awesome and works flawlessly. My TH400 is a reverse manual valve body with Trans Brake and a 3800 PTC converter with a upgraded steel stator. Let us know how it does.
In looking at the temp gauge, if it is accurate the pressure is great. Just don't like how it drops like a rock at high rpm.
I think what's happening is the pump is cavitating for a second from oil being slammed into the back of the pan. Don't think it's necessarily windage.
I think what's happening is the pump is cavitating for a second from oil being slammed into the back of the pan. Don't think it's necessarily windage.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
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
alright Greg. WHat shifter are you using? any pix or part #
what size stall?
rmvb or not?
what driveshaft?
trans crossmember? if stock or t56 any pix of what it looks like installed in car?
Will the stockish flywheel work with the th400 stall? or a custom one needed?
what size stall?
rmvb or not?
what driveshaft?
trans crossmember? if stock or t56 any pix of what it looks like installed in car?
Will the stockish flywheel work with the th400 stall? or a custom one needed?
Thread Starter
TECH Senior Member
iTrader: (8)
Joined: Sep 2008
Posts: 5,130
Likes: 4
From: 6,000+ feet
Jim I'm on a 28" tire at the track, but yes I think it will be on the limiter on motor, not to mention spray. Its getting a much taller gear and light weight spool soon.
Stall hits about 4500-4700 on motor. Specd to go 5200 on spray.
RMVB
Hurst quarter stick shifter.
Custom 3.5" aluminum shaft
Stock T-56 cross member slotted and a ~2" spacer added to raise the rear of the trans where it should be.
Stall hits about 4500-4700 on motor. Specd to go 5200 on spray.
RMVB
Hurst quarter stick shifter.
Custom 3.5" aluminum shaft
Stock T-56 cross member slotted and a ~2" spacer added to raise the rear of the trans where it should be.
from a T56 you will probably lose 3-4 mph tops..... so 116 will be down to around 112-113.... but on the good side you'll most likely knock off 3-4 tenths.... i did the same thing and car dumped about 4 tenths and lost 3.5 mph.... was definitely quicker in a straight line like you said....
however that is an ASSLOAD of stall for your combo. 4700 NA and 5200 N2O???? holy ****....
For comparisons sake i have an ATI 9" Fuel/blown converter. stalls to around 4200 RPMS. No idea what it jumps to when the nitrous comes on all i know is i'm shifting fast as **** to keep up. And i shift at 7500 RPMS.
So if your **** stalls to 5K what do you plan to shift at??? With 4.30's out back it's gonna climb fast as ****. hope your right hand is ready cause that 1-2 is gonna come in a blink of an eye....
however that is an ASSLOAD of stall for your combo. 4700 NA and 5200 N2O???? holy ****....
For comparisons sake i have an ATI 9" Fuel/blown converter. stalls to around 4200 RPMS. No idea what it jumps to when the nitrous comes on all i know is i'm shifting fast as **** to keep up. And i shift at 7500 RPMS.
So if your **** stalls to 5K what do you plan to shift at??? With 4.30's out back it's gonna climb fast as ****. hope your right hand is ready cause that 1-2 is gonna come in a blink of an eye....
however that is an ASSLOAD of stall for your combo. 4700 NA and 5200 N2O???? holy ****....
For comparisons sake i have an ATI 9" Fuel/blown converter. stalls to around 4200 RPMS. No idea what it jumps to when the nitrous comes on all i know is i'm shifting fast as **** to keep up. And i shift at 7500 RPMS.
So if your **** stalls to 5K what do you plan to shift at??? With 4.30's out back it's gonna climb fast as ****. hope your right hand is ready cause that 1-2 is gonna come in a blink of an eye....
For comparisons sake i have an ATI 9" Fuel/blown converter. stalls to around 4200 RPMS. No idea what it jumps to when the nitrous comes on all i know is i'm shifting fast as **** to keep up. And i shift at 7500 RPMS.
So if your **** stalls to 5K what do you plan to shift at??? With 4.30's out back it's gonna climb fast as ****. hope your right hand is ready cause that 1-2 is gonna come in a blink of an eye....