TH400 guys inside
Thread Starter
11 Second Club
Joined: Jul 2003
Posts: 2,311
Likes: 2
From: loudoun county,va
TH400 guys inside got a weird one for ya....
today was the first time i have turned on my defrost since installing the A3 trans....
some things happen right away that grabs i attention....
for starters the idle gets much more stable(already got an answer on that , thanks chad)
second, the converter...... it grabs about 1000 rpm sooner
i have a hughes 4000 stall, and normally it does not move the car foward until it reaches about 3000 rpms....
but after turning on the defrost it grabs at 2000..... WTF?
not believing it myself, i turned off the defrost and right away it acts normal.... slipping to 3000 before grabbing... turned it back on and back to 2000.....
the th400 is not electronically controlled, i have no lockup at all, so what gives? i dont see what would cause the connection in the 2?
a side note, my compresser does not have a belt on it so it never pulls power from the motor when i turn on the defrost...
Whats the deal?
__________________
today was the first time i have turned on my defrost since installing the A3 trans....
some things happen right away that grabs i attention....
for starters the idle gets much more stable(already got an answer on that , thanks chad)
second, the converter...... it grabs about 1000 rpm sooner
i have a hughes 4000 stall, and normally it does not move the car foward until it reaches about 3000 rpms....
but after turning on the defrost it grabs at 2000..... WTF?
not believing it myself, i turned off the defrost and right away it acts normal.... slipping to 3000 before grabbing... turned it back on and back to 2000.....
the th400 is not electronically controlled, i have no lockup at all, so what gives? i dont see what would cause the connection in the 2?
a side note, my compresser does not have a belt on it so it never pulls power from the motor when i turn on the defrost...
Whats the deal?
__________________
Originally Posted by jxaxsxoxn
LOL thats a good one. 
I'm about to put a Hughes 4000 in with the TH400. Sure would be nice to turn the rear defroster on and lower the stall rpm for around town driving.
Thread Starter
11 Second Club
Joined: Jul 2003
Posts: 2,311
Likes: 2
From: loudoun county,va
Originally Posted by bad2000ss
No kidding!
I'm about to put a Hughes 4000 in with the TH400. Sure would be nice to turn the rear defroster on and lower the stall rpm for around town driving.
I'm about to put a Hughes 4000 in with the TH400. Sure would be nice to turn the rear defroster on and lower the stall rpm for around town driving.
not the rear defrost... the front one, that usually kicks on your compresser(well it would but mine is not hooked up..)
i know it gets its tuning from a differant table when it thinks you are running the compresser, but i dont see how it would effect stall speed?
unless it somehow increases tranny fluid pressure?
Originally Posted by jaberwaki
not the rear defrost... the front one, that usually kicks on your compresser(well it would but mine is not hooked up..)
i know it gets its tuning from a differant table when it thinks you are running the compresser, but i dont see how it would effect stall speed?
unless it somehow increases tranny fluid pressure?
i know it gets its tuning from a differant table when it thinks you are running the compresser, but i dont see how it would effect stall speed?
unless it somehow increases tranny fluid pressure?
This may remain somewhat of a mystery, but here's a TTT for you. Hopefully someone might be able to chime in.
lol that would be a good trick
does it idle differently? maybe you a/c on idle speed is set different.
Also I can't immagine how the car won't move at all untill 3k rpm? I rode in a ls/th350 4900 rpm stalled car and untill you get on it its not much different than mine. can drive under 2k rpm at light throttle.
does it idle differently? maybe you a/c on idle speed is set different.
Also I can't immagine how the car won't move at all untill 3k rpm? I rode in a ls/th350 4900 rpm stalled car and untill you get on it its not much different than mine. can drive under 2k rpm at light throttle.
Trending Topics
Thread Starter
11 Second Club
Joined: Jul 2003
Posts: 2,311
Likes: 2
From: loudoun county,va
Originally Posted by SmokingWS6
lol that would be a good trick
does it idle differently? maybe you a/c on idle speed is set different.
Also I can't immagine how the car won't move at all untill 3k rpm? I rode in a ls/th350 4900 rpm stalled car and untill you get on it its not much different than mine. can drive under 2k rpm at light throttle.
does it idle differently? maybe you a/c on idle speed is set different.
Also I can't immagine how the car won't move at all untill 3k rpm? I rode in a ls/th350 4900 rpm stalled car and untill you get on it its not much different than mine. can drive under 2k rpm at light throttle.
maybe i worded that wronge... it will "move" under 3k rpm... but it is not till 3 k that there is good throttle feel.... but with defrost on there is good throttle feel at 2000 rpm... it also cruised at lower rpm.....
oh and get this... even though it cruised at a lower rpm... i got WORSE gas milage!!!
what gives???? i swere i only get the REALLY strange probles....
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
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
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
