Do you guys have any reliability problems with your turbo'd trucks in the heat? Like over 100 degree heat and still be able to drive it safely?
I've been slowly building up my truck with supporting speed parts, built trans, 3200 stall, Yukon limited slip, gears, hardened axles, kooks long tubes......all kinds of fun stuff....ha ha....now I'm looking at making more power. I've always looked at shoving a bigger motor in it and calling it a day like a 408 or stroking my 5.3 out to a 383. Lately I have been looking at the turbo VS stroker cost and the turbo looks way cheaper in the end with more power. I am stationed in a place that gets up to 127 degrees.....Would a turbo set up survive at inlet teemps like that? I love the price.....but it seems like it would be a waste with how hot it can get....in the summer it gets to 95 at 5am......before the sun even comes out. Ha ha! Anyone with a turbo truck that drives it in the heat, let me know how it is.....do you have issues? Do you run meth? Is it a speed density or Maf set-up? Thanks for any info in advance!

 

We have one that sees over 100 a couple of days in texas. Its maf and with the higher iat it doesnt pull as hard. Other than that no real problem here.

 

With a conservative tune and meth on top you shouldnt have any problems.

 

Like atomic said. i dd mine and its been driven in over 100° weather several days but not 127. i would make sure you have a damn good cooling system (first hand issue) and make sure its a good safe tune.

 

Sweet, good info. I'm kind of uneasy with the meth set-up, I keep seeingg people with them saying they are reliable but I can't help but think "if that pump quits will I have enough time to turn the truck off before the motor is hurt?"

Chevrolet all the way: do you run a SD or MAF? How often do you usually have to fill up the meth tank if you are daily driving it?

 

He doesnt run meth...

I run a m15 and m10 nozzle and 5 gallons has lasted me about a year. Granted its not a DD and my turn on pressure is about 4psi.

The people that usually break their stuff with meth have it tuned so its running more timing than just pump gas could handle....I use it more for intake cooling and just slightly added octane (I dont add timing). This is the conservative way to do it, but if my meth system fails for some reason, its not the end of the world, I just need to turn the boost down until I get it fixed.

 

Im too slow and now richards shadow lol. never tune a car to daily drive and have to have the meth. its just like anything else on a vehicle. you dont want to lose a fuel pump, but how often is that. if something is to fail dont make the truck be stranded without it. make it just an insurance really with the high temps. and spraying as much as you will it will take a pretty good while to go through it.

 

So when you tuned it, you found the edge of pump gas, backed the timing off and then turned on the meth to create a larger safety window. Makes sense. I bet most guys just bump the crap out of the timing once the meth comes on.

That is exactly what I was wondering if running a turbo was capable of doing. If the pump quits while I am driving home for the weekend (500 miles round trip) I'd want to be able to limp it home.


I was told by the shop that tuned my truck that they would just keep the truck MAF instead of going SD. They said to just put a newer MAF on it and it will be fine. Is that because they just rescale the MAF to be able to "sort of" read the extra air? I always heard that the stock computer simply couldn't read a certain amount of air (with the stock scaling) and THAT was the problem. That is what seemed to push the SD on the gen3 stuff that I saw at the track.
If they rescaled the MAF woulld there be dangers with doing that instead of going SD once you added the heat? With SD you just pull the MAF and run a seperate sensor for IAT......seems pretty straight forward to me......just don't know if there are dangers with the SD tune and high heat. I know that Cavaliers were SD.....just never owned one or drove one out where I was stationed.....even though they are the perferred transportation for meth heads out there. Ha ha!

 

Im not sure what danger there would be of sd tune. and i forgot to answer but mine is sd along with richards. mine is 3bar and im sure his is as well. never had any issue. you can still run a closed loop sd tune and the truck will adjust the small amount needed to the high heat vs cold nights (if that ever happens in that oven you live in)

 

How long did it take you guys to work the bugs out of it once you put the turbo on it? You said you had coolig issues, was that with a manual fan?