LS1 Tuner for boost?

T

Time2Kill

Club Member
Can anyone recommend a tuner in South East Michigan for a good turbo tune? Been a long time lurker here but usually post over at some of the other boards.

I just picked up a 2005 Sierra Denali with a forged 370 with a Livernois tubular turbo kit and a HP71 turbo.

It's currently running a 4L80E with the AWD. I know HP Tuners handled the segment swap for the tune for the 4L80E and that it is currently running a speed density custom 2-bar OS from HPTuners that was done by Speed Inc. The guy I bought it from said there were a few quirks in the tune and that I should get it checked out.

It's currently pushing 9psi with current spring in the wastegate and I'm seeing 10.0~10.2 afr at partial throttle and 10.8~11.2 afr at WOT. The guy I bought it from said the tune was done at about 13~14psi on a stock motor and a PT70GTS (before they blew up, motor popped a piston and took out the turbo). Sounds like nothing was changed in the tune for the new turbo and forged 370.

I'll be swapping it to a 4wd transfer case so I can lock it in 2WD to get the tuning done on a dyno. Also plan on adding a boost controller before I go in for the tune as well.

Looking for a tuner that will actually go through the tune, get idle, partial throttle, and WOT all spot on and not just a PE table rape like my last four tunes. From what I've found so far, my top three picks in no particular order are: Baker Engineering in Grand Rapids, Sean at C.A.R.S. and Lidio over at Alternative. Lidio is by far the most convenient since I'm only a few minutes from his shop but it seems like he is mostly a Mustang shop, but I'm willing to drive for a good tuner.
 
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whats the guys name...they call him a prick :)

then I would say TJ @ Baker, but I thought they were in NAutica?? Muskegon?

cool ride, more details/pics??
 
Why wouldnt you take it to livernois? Millens tuned my boosted car..and has always helped me out when i needed it. It take livernois over any of your other choices. just my .02
 
99TransAmWs6 said:
Why wouldnt you take it to livernois? Millens tuned my boosted car..and has always helped me out when i needed it. It take livernois over any of your other choices. just my .02
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I've been researching tuners in Michigan, and the three in my original post are the ones that I have found the most positive reviews for. I haven't seen anything negative about livernois, but I haven't seen much positive either, at least not like the other tuners. I've also heard they are quite expensive, no reason to over spend if I can get a quality tune somewhere else, but I do understand that you get what you pay for to a certain extent.
 
Cant beat Dr Phils tunes, but at Livernois, they have an AWD dyno, so at least you wouldnt have to swap your transfer case
 
Time2Kill said:
I've been researching tuners in Michigan, and the three in my original post are the ones that I have found the most positive reviews for. I haven't seen anything negative about livernois, but I haven't seen much positive either, at least not like the other tuners. I've also heard they are quite expensive, no reason to over spend if I can get a quality tune somewhere else, but I do understand that you get what you pay for to a certain extent.
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Where are you researching? Livernois is known all over the place. Like you said, i wouldnt skimp on a tune. There are plenty of guys here that have had their cars tuned there. Like i said..Millen tuned mine, cruised on the streets daily, raced at the track. Havnt had any issues. Any questions i had..millen was quick to assure me with a solid answer.
 
You can also take your truck directly to phil i believe. Ive seen and heard nothing but good things about him from multiple people.
 
Time2Kill said:
Can anyone recommend a tuner in South East Michigan for a good turbo tune? Been a long time lurker here but usually post over at some of the other boards.

I just picked up a 2005 Sierra Denali with a forged 370 with a Livernois tubular turbo kit and a HP71 turbo.

It's currently running a 4L80E with the AWD. I know HP Tuners handled the segment swap for the tune for the 4L80E and that it is currently running a speed density custom 2-bar OS from HPTuners that was done by Speed Inc. The guy I bought it from said there were a few quirks in the tune and that I should get it checked out.

It's currently pushing 9psi with current spring in the wastegate and I'm seeing 10.0~10.2 afr at partial throttle and 10.8~11.2 afr at WOT. The guy I bought it from said the tune was done at about 13~14psi on a stock motor and a PT70GTS (before they blew up, motor popped a piston and took out the turbo). Sounds like nothing was changed in the tune for the new turbo and forged 370.

I'll be swapping it to a 4wd transfer case so I can lock it in 2WD to get the tuning done on a dyno. Also plan on adding a boost controller before I go in for the tune as well.

Looking for a tuner that will actually go through the tune, get idle, partial throttle, and WOT all spot on and not just a PE table rape like my last four tunes. From what I've found so far, my top three picks in no particular order are: Baker Engineering in Grand Rapids, Sean at C.A.R.S. and Lidio over at Alternative. Lidio is by far the most convenient since I'm only a few minutes from his shop but it seems like he is mostly a Mustang shop, but I'm willing to drive for a good tuner.
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Was that Hunter's brother's old truck (think his name is Reed)? I remember he had a built up Sierra at one point in time.
 
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