I can understand the heatsoak issue totally. And from what I've seen that is the only thing that really makes sense. In other buildup's i've done i've seen the turbo you have run up to 27~28 psi before really pumpin out the hot air. There's no reason yours should be any different. I tend to have issues with my manifold configuration in the staging lanes. I have to let the hood proped open or I see intake temps in the area of 127-130 on a 80 degree day when idling in the staging lanes.


For the record and your comparative results:

I just looked over my last datalogs of the year, that night the ambient air temp was 79 degrees with a 31% relative humidity-I note the tracks weatherstation readings when I race.

at 9 lbs boost (1st gear) my MAT is around 71~72 degrees

at 15 lbs boost (2nd-3rd gear) MAT held about 75~76 degrees

at 21~22 lbs boost (starting into 4th) I saw a peak of 81 degrees


later that night I did a 4th gear log (hwy on ramp butt dyno...) and logged 78 degrees at 22 lbs boost holding steady throughout the rpm range. And I believe it was about 68 degrees around 11:00 pm when I left.


I also have my MAT mounted right before the TB on the I/C piping, run 3" uncoated 0.065 wall stainless tubing, the setup is a T-3 garret 60-1 with twin 38mm tial wastegates, and a vibrant 24"x13"x3.5" I/C core(my own end tanks) -just for reference. Need any more from me to compare?


Now... where's everybody else's numbers...?

Creative thinking? Ingenuity? Hell, It's just an obsession!



99 Eclipse GS turbo: MSpowered, everything custom built, 223.8 HP-199.8 TQ @8psi through auto-tranny. The first time around...