We went to the track Saturday and could not get my truck runing up to par.
It kept pulling timming for some reason with no KR. Some times it wouldn't hardly do a burnout . Sixty foot times were a joke. But when it did come up on boost it would spin a pretty good bit. I'm going to get a smaller exhaust housing to help with earlier spoolup. I couldn't get my 3200 PI converter to brake stall over about 2200 HA HA. I would appreciate ya'll checking out my tune/log and see if you see anything that might help it keep some timming. It's EFI Live.
Thanks

 

Well, I'll be damn

 

Looks like your running against the minimum spark advance set in the PCM. My best guess is it's engine torque management. Try setting all your engine torque management setting to there max value and see if you get your timing back. Also, try logging the spark pids and see what is pulling the spark, since its not KR.

On another note, what are the specs on your turbo? Thats a WHOLE lot of turbo for a 5.3. Seems rather slow to spool.

 

Hey now, I've been helping you.

 

What does the tq converter flash to Curt?

 

Yes you have, and i sure do appreciate it

 

It is way to tight, I spoke with Chuck at FLT yesterday ( that's who sold me the converter) he called PI, then PI wanted to talk to me...Jack@ PI said they have been working with some lightning guys running turbos using a 9.5" converter to get more stall. They are going to make one for my truck that is supposed to stall ~ 3200. That will definatly help my sixty. Once it's in boost it's on

 

Thanks,i'll look at that, Justin reccomended logging spark pids also. It will probably be a few weeks at least now because I'll be monkeying with the converter. Then i'll be on vacation for a couple of weeks. Yes, it's kind of big i'm going to try the converter swap and see what that gets me. If it needs to be changed i don't know if i'll change it or put a 6.0 in it
It's a GT-42 with a 1.28 exh. housing i think they make a 1.01 for them as well.

 

HOW COW!! A 1.28 on a 5.3? No wonder it takes so long to get it to spool, lol. That turbo on a 5.3 I wouldn't go anything bigger then a .96 and would probable run a .81 if you can get them.

 

Get a big tranny cooler if you don't have one. That tiny 9 1/2 inch 3200 will really heat the fluid up around town.