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  1. Ridin'GMC

    Compound turbo tuning

    From watching on my insight gauge it'll drop down from 65-50 to 23% and hold there since that's the set minimum vane position. On my last tune which was my last log before I made adjustments to the torque limiters, it'll drop down to 70mm³ and hold there. Definitely will do sometime this week...
  2. Ridin'GMC

    Compound turbo tuning

    What else would be limiting at the top end. First I thought it was the torque limiter so made some adjustments, and it's a little better but still the same issue. Something is pulling back and I'm unable to figure out by looking at the logs.
  3. Ridin'GMC

    Compound turbo tuning

    So... After a while of going back and forth on the tune trying to get it dialed in, still coming up with the same issue of falling on its face at the top end. Thinking it was the torque limiter, had it raised with the help of member on here, it's still falling on its face at the top end. Now...
  4. Ridin'GMC

    Chevy1925 (James) Truck/motor build

    I knew you would get the limo back eventually. That's your pride right there, all the memories and time you spent on it whether it's good or bad. That's what you built and learned on.
  5. Ridin'GMC

    01-10 steering box redhead ,PSC ,OEM

    You got lucky. As soon I saw this, I hopped right on rock auto and it's still showing me out of stock.
  6. Ridin'GMC

    Brake issue

    I can confirm this. Went through 3 sets of napa fleet brakes and none of them performed or lasted as they should in 2 different vehicles. The rotors warped every time when I'm towing, ACDelco brake parts (or raybestos which makes the brake parts for ACDelco) lasted much longer and performed...
  7. Ridin'GMC

    When to upgrade!!

    50k for a 4 year old truck with nearly 100k miles is still too much imo. By the time you finish your payments, you're still dumping money into it for repairs from wear and tear. It ends up being more money into it that what it would cost to keep fixing your 21 year old truck that's already paid...
  8. Ridin'GMC

    01-10 steering box redhead ,PSC ,OEM

    Bumping it up Checking to verify if the Cardone 978418GB is not coming in as 4 bolt units opposed to the 6 bolts which every one is trying get before I order it. Nobody wants to do the same job twice over poor quality parts.
  9. Ridin'GMC

    Compound turbo tuning

    Thanks Brad. 100% is really my goal. Hopefully I'll get it next year.
  10. Ridin'GMC

    Compound turbo tuning

    Bigger injectors are the next thing to add on this. Ended up having to put it back together so I could use it to take the family camping. I know my injectors are due for a replacement but its not making low rail pressure.. yet. Now I need to find out how big of an injector can the exergy...
  11. Ridin'GMC

    Compound turbo tuning

    I believe so. It's a JZ Mfg 63mm, got them through Brad. I originally wanted Danville and thought they were gone for good until Brad mentioned that JZ is practically a Danville turbo. I'm very curious what's Mark's tuning would be like with this turbo.
  12. Ridin'GMC

    Compound turbo tuning

    That's what I figured. The only thing I did to the tcm was to raise the shift points to keep it in the torque range. In factory, it would be too low of an rpm and lug especially when I'm towing with the t/h on. I did this with my single turbo setup to keep it from smoking at low rpms. Now it...
  13. Ridin'GMC

    Compound turbo tuning

    It does downshift depending on how fast I'm going with light throttle then mash it. I have a 1078 converter, that shouldn't be my issue? I do feel like it's in the tuning that I'm not aware of. Maybe more fuel down low in the pulse width?
  14. Ridin'GMC

    Compound turbo tuning

    Got the vanes almost dialed in, still trying to get it to spool like near stock. I'm uncertain at the moment if lowering the vane position would assist with the turbo spool up, I've made 5% adjustments by going more and less and didn't get much of a difference to notice. Also still adjusting the...
  15. Ridin'GMC

    Wheel fitment question

    Those wheels clearly look like a 0 offset, it won't push the wheels far out that much. It's probably a 4.5" backspacing. It'll be fine on your lowered truck. Won't stick out like an eyesore or dummies with wheel spacers.
  16. Ridin'GMC

    So I did something stupid this weekend.....

    Tom, The AWD does state it has 1 qt more for the oil pan capacity but I've found in my last several oil changes it takes about 6.5- 6.75 quarts to be at a full level. If I put in 6 quarts in my AWD ATS, it always show it's a quarter low on the dipstick every time. I'm kind of curious how hot...
  17. Ridin'GMC

    Compound turbo tuning

    The problem with the vane going to 0%, you start losing the valley charger boost and the atmospheric charger starts working harder, so you lose the overall boost. During driving, I would watch my boost climb to spike at 45-50 psi, atmospheric charger is pushing 35 psi then when the vane backs...
  18. Ridin'GMC

    Compound turbo tuning

    Sent you a PM
  19. Ridin'GMC

    So I did something stupid this weekend.....

    What made you go into the suspension, loose or noise? I can imagine the mess you're in, pretty much any car with the LTG are beat to death. I had the same situation when I was looking for a daily driver, ended up finding my 15' ATS with 18k miles owned by an old lady in damn near excellent...
  20. Ridin'GMC

    Compound turbo tuning

    Thanks Josh. I haven't been able to do much tuning lately due to the rain won't stop in New England, makes it harder to get an accurate reading at WOT. I've done a bunch of adjustments to the turbo vane in both minimum and maximum, also made adjustments to the desired boost. The code popping...
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