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  1. D

    LMM: S371 to S475 conversion.

    Mark has my mass air shut off. It has been off for 2 years now. I bought a new one but never had it put back into the tuning.
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    LMM: S371 to S475 conversion.

    Yes 5" intake No change in tune yet. Need to get a data log to tuner. I already discenagrated the compressor on one S396 from over speed. Use to run 3rd gear start all the way at 3900rpm. I run 4th gear start all last year at 3200rpm. Made a lot more power and turbo was much happier. As soon as...
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    LMM: S371 to S475 conversion.

    Yea the fist thing I did after the install was pressure test the boost side to 20psi. My S371 only ran 2 or 3 psi on the street along with the factory vnt . My S371 on a pull at 3600 RPM would run 42 boost and 57 drive. At 2800 it was 52/52 At 3900 it was 31 boost and 71 drive I wound this S475...
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    LMM: S371 to S475 conversion.

    Yes
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    LMM: S371 to S475 conversion.

    I measured it across the fins with exaust housing off. I don't know how to post photos on these sights. I can text you some photos if you like. 518 586 4134
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    LMM: S371 to S475 conversion.

    I think he may be putting Garret turbines in the borgwarner turbos. He says they spool faster
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    LMM: S371 to S475 conversion.

    The turbo is from Tator and he is putting 91mm turbines in them. I measured it also. It is also in a T4 .90 housing. It is crazy that it runs so well on my son's Cummins. Normal driving he is pushing 20psi and full out it is over 70. On mine normal driving is 2psi and maxes out near 40
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    LMM: S371 to S475 conversion.

    Thanks I went through all this for the last 2 years when I changed from the 63mm cheata vnt to the S371. It ran fairly well until I hooked to the sled and couldn't light the turbo for the first 75'. Got the torque restalled but it was a bit to high. As soon as I took off it would go to...
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    LMM: S371 to S475 conversion.

    Thanks for all the information. I do realize the stall will need to be changed to be able to launch the truck. I am just not sold on this turbo and I am trying to figure out if I would be a lot happier changing to a smaller turbin before changing the stall. I can unlock the torque manually and...
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    LMM: S371 to S475 conversion.

    Like I said the converter is out of the problem when it is locked at 65mph.
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    LMM: S371 to S475 conversion.

    I didn't buy this turbo it is a spare from my son's dodge truck. It is a 2.5 pulling turbo from Tator. I just wanted to try it before I bought one. I am still running 2.5 work stock in some places and 2.6 in others. Most places require you to have a stock turbo so i get forced into the 2.6...
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    LMM: S371 to S475 conversion.

    At this point the converter is out of the pitcher because I am on the road over 45mph and the converter is locked. If I can't get it to work work better here there is no reason to go any further. I had issues with the mass air reading going to 0 a lot so Danville tuned the mass air out of...
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    LMM: S371 to S475 conversion.

    Hi my name is Rick Abare. I have a LMM daily driver that i pull 2.5 workstok in. I ran a S371/ 83/ .91 all last year with no issues. I wanted to upgrade to the S400s for this year and my son has a S475 / 91 / .90 so I bought a S400 install kit from HSP and bolted it on. What a PIG!!!! What...
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    no check engine light is my ecm fried

    No crank no start service abs, trailer brakes, service stabilitrack and no check engine light with key on. Security light is on for about a minute then shuts off. i have power to the run/crank relay and the power train relay will activate for about 2 seconds and shut off. How do you test...
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    Help!!! Did an oil change and NO CRANK

    I plugged in my V2 to reflashed the PCM and it could only find the TCM. I had to Manuely tell it what it was and when I told it to read the PCM it came back k with $0101 no data recived
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    Help!!! Did an oil change and NO CRANK

    It woun't start with remote starter either and that bypasses the key
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    Help!!! Did an oil change and NO CRANK

    I pulled it into my warm garage did a normal oil change the ran it for a minute then shut it down to check fluids. got it finished went to drive it out and no crank. Dash is all lit normal Shift indicator is normal can't move shifter without foot on brake fuse box has power no 12v on...
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    LMM: Wisco Pistons

    tuning Danville He said it was going to be very dficult to quite these pistons down.
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    LMM: Wisco Pistons

    Just built my motor with the new Wiesco pistons and Carrillo rods. We are having issues tuning the fuel nock out under light load. It sounds just like a gas motor running cheap gas. It is a light pinging noise I have never heard before. The pistons are 15.5 comp. They are new to the duramax...
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    LMM: tunning for new Wiseco pistons

    What kind of changes will i need to run these pistons. They have their own design bowl. Thanks, Rick Abare
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