Ran Texas Motor Speedway infield road course Saturday night. Got high trans temp warning on the DIC late into the runs. What solution(s) have been employed by others? My first thought is synthetic fluid. I will be posting more pictures of my repair, which ended up working out, when the shop manager returns from vacation. Thanks for ya'lls help. Steve.
There have been several threads on this topic. Synthetic alone won't help. The consensus is a transmission cooler. I may try cutting an opening in the brake cooling duct to increase airflow around the exhaust and transmission first.
Some guys have reported success by wrapping the exhaust to prevent heat from the exhaust from contributing to tranny temps.
I did change out to Redline Synthetic in tranny (D4 ATF) and diff (75w90). But that won't help temps.
As part of my SCCA T1 preps I had a GM performance parts tranny cooler installed. No tranny high temps since. That includes 30 minute races in 100 degree temps.
Can't sp[eak to the wrapping, but did the tranny cooler install myself, as many of you pmight painfully recall (all my whining!) but ran yest at Portland, no high trans temp. Track temp were 120-125 with my handy radioo shack pyro.
Anybody hear how Brian turned out after his incident yest at Portland track day
Originally posted by Subdriver Some guys have reported success by wrapping the exhaust to prevent heat from the exhaust from contributing to tranny temps.
This was one of the things that Rupert Bragg-Smith had mentioned the last time I was up there . . . memory serves, his exact words were "it's required". Worked extremely well on his T1 prepped '01.
emf, in addition to the exhaust thermal barrier wrapping, the GMPP's cooler is probably a necessity for ORRing events as well. This is probably the main reason I haven't entered one yet with my Z06. I've heard this is a BIG problem.
Wrapping the exhaust where it passes the trans and diff is not going to do much of anything, imo. Chuck Mallett feels the same way. A tranny cooler (as well as a diff cooler if you plan on ORRing) is really the only way to go.
One potential problem with wrapping exhaust on a street driven car is water. The wrap traps moisture next to the pipes promoting rust and corrosion.
. . . should have been more specific. Rupert indicated that the header wrap should be used as a suplement to active coolers . . . not as a replacement. In his case, since he's running straight-pipes, the coolers are sitting in the rear fascia where the muffers would normally sit.
Last time out at the Motorsport Ranch, I did not get a high trans temp warning. Of course, with the Z06, I don't know exactly what my trans temp was, how close it was to 270 degrees.
But, it was a 90+ degree day, so it appears to have helped.
The tips on the PRT's aren't looking too good, maybe from heat carrying further back? Just a guess.
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