Automatic Trans. Discussion
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Joined: Dec 2001
Posts: 103
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From: Pemberton N.J.
Re: Automatic Trans. Discussion [quote]Originally posted by BlackWS6:
<strong>All you H/C and Big Cube guys, I'd like to hear your opinions.
When you decided it was time to start looking for a transmission, what were some of the Pro's/Con's on:
Built 4L60E (FLP, Yank, Local Shop,etc.)
TH400/TH350 ?????
It seems that the TH400 is a lot cheaper then a lot of the built 4L60E's, but you lose that "driveablity" of a computer controlled transmission. Can a 4L60E be built strong enough to last? Or is a TH400 the best way to go in the longrun?
PSJ, I'm interested in what you have to say, because you've got a monster of an engine with a built FLP transmission. How has it been for you? How long to you honestly expect it to last? How long till it needs to be "freshened up"?
<img src="graemlins/formula.gif" border="0" alt="[Pontiac]" /> </strong><hr></blockquote>Am I the only one that sees somthing wrong with near 200-200+ degree trans temps? I installed a trans temp gauge about 2 weeks ago. Trans is stock with the exception PPIII (shift points and 100% firmness). I have observed in very cold weather, trans runs around 135 degs for a very long time until you get on the highway or lots of stop and go traffic where it can go to 150- 165 degs. In warmer weather, (50 on up) it will get as high as 180 degs blipping throttle in stop and go, 165 on the highway. I have a BIG cooler that I have yet to install because I just don't by the "too cool" responses I have heard from a lot of post on the net. Auto tranmissions aren't supposed to run near 200 deg temps. Heat does kill very quickly (I burnt up a Mopar 727 Torqueflite to the point fluid looked like oil and smelled like black liquoric left on the stove!!!!) <img src="graemlins/gr_barf.gif" border="0" alt="[barf]" /> Just some FYI.
<strong>All you H/C and Big Cube guys, I'd like to hear your opinions.
When you decided it was time to start looking for a transmission, what were some of the Pro's/Con's on:
Built 4L60E (FLP, Yank, Local Shop,etc.)
TH400/TH350 ?????
It seems that the TH400 is a lot cheaper then a lot of the built 4L60E's, but you lose that "driveablity" of a computer controlled transmission. Can a 4L60E be built strong enough to last? Or is a TH400 the best way to go in the longrun?
PSJ, I'm interested in what you have to say, because you've got a monster of an engine with a built FLP transmission. How has it been for you? How long to you honestly expect it to last? How long till it needs to be "freshened up"?
<img src="graemlins/formula.gif" border="0" alt="[Pontiac]" /> </strong><hr></blockquote>Am I the only one that sees somthing wrong with near 200-200+ degree trans temps? I installed a trans temp gauge about 2 weeks ago. Trans is stock with the exception PPIII (shift points and 100% firmness). I have observed in very cold weather, trans runs around 135 degs for a very long time until you get on the highway or lots of stop and go traffic where it can go to 150- 165 degs. In warmer weather, (50 on up) it will get as high as 180 degs blipping throttle in stop and go, 165 on the highway. I have a BIG cooler that I have yet to install because I just don't by the "too cool" responses I have heard from a lot of post on the net. Auto tranmissions aren't supposed to run near 200 deg temps. Heat does kill very quickly (I burnt up a Mopar 727 Torqueflite to the point fluid looked like oil and smelled like black liquoric left on the stove!!!!) <img src="graemlins/gr_barf.gif" border="0" alt="[barf]" /> Just some FYI.
TECH Senior Member
Joined: Nov 2001
Posts: 11,603
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From: Chi-Town, IL
Re: Automatic Trans. Discussion I will have a TH400 soon...all the parts are in...i got a 4500 converter non locking, I could of gotten the lockup option from izzo, but it was another 600
