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Search results

  1. Quadstar Tuning LLC

    "ProMax" cylinder head review

    Runs will be made with and without meth on the new pump. It's going to set the official power records for a DS pump. I'll sandbag it a little on fuel so we have more on tap for the first person that wants to challenge it 🤙
  2. Quadstar Tuning LLC

    "ProMax" cylinder head review

    Shocking. You don't agree with it. We are all shocked 😆
  3. Quadstar Tuning LLC

    "ProMax" cylinder head review

    I hope the customer does! I'm sure the head work done here will only help. He has indicated he definitely wants to but the current state of things has slowed down his build somewhat. We'll be involved as much as we can if he does make it to that stage. Banghart's truck is getting a different...
  4. Quadstar Tuning LLC

    6l90 behind a 6.5

    Here's a 2013 6L80E in our dually with the factory BW4401 bolted on using our adapters and torque converter. It has full manual tap shifting with paddles since it's programmed with a car operating system in the TCM. Still working out some bugs so we can put more miles on it. This is the time...
  5. Quadstar Tuning LLC

    "ProMax" cylinder head review

    We didn't provide the heads, so no, we didn't see them.
  6. Quadstar Tuning LLC

    "ProMax" cylinder head review

    No Secrets to the combo, it's all been posted on our FB pages. That run did have methanol injection and the turbo combination was still holding it back some on the turbine side. They are going to be doing more runs with a new injection pump from us (the same one going with this set of ported...
  7. Quadstar Tuning LLC

    "ProMax" cylinder head review

    Banghart Diesel & Performance put down 355hp/659tq through a set of ProMaxx heads recently and a bunch of other parts from us. No major work was done to these other than a basic gasket match job. We'll be pushing them to 400 here in the coming weeks.
  8. Quadstar Tuning LLC

    6l90 behind a 6.5

    Yeah, you have to go with a newer case if you go 6L90. Have to plan ahead before acquiring a transmission because you don't want to be stuck with the wrong combo for your needs. We have all the variations listed in PDF files to send with the controllers. We have a customer here in PA doing the...
  9. Quadstar Tuning LLC

    6l90 behind a 6.5

    Here's our 6L80 mocked up to the stock NP241. Plan is to have this one in our dually by the end of next week with the stock BW4401. You can't use the stock tcase with a 6L90 easily so we went with the 6L80 here to be able to write up all the instructions. This one is from a wrecked Caprice...
  10. Quadstar Tuning LLC

    Torque pro with extended pies from quadstar

    The only fuel related data in the PCM is desired fuel rate, which is a fictitious number, measured in mm^3/1000 injection events. You could write a synthetic PID to do math based off the fuel rate PID and get something usable, although, I'd argue that it's not viable. In order for it to read...
  11. Quadstar Tuning LLC

    Torque pro with extended pies from quadstar

    There's no actual fuel flow PID to measure for MPG calculations and Oil Temp has no sensor, therefore, neither are possible
  12. Quadstar Tuning LLC

    6l90 behind a 6.5

    Yeah, we'd recommend flashing the stock PCM to manual for a proper swap. It'll run programmed as an auto but will toss codes so the final touch would be to program it correctly, in out opinion. The harness is not entirely plug and play. It's recommended to do new home runs for the power and...
  13. Quadstar Tuning LLC

    Diagnosis question

    You should. A DS always moves fuel and makes pressure when it turns... The fuel solenoid just let's the pressure out as commanded.
  14. Quadstar Tuning LLC

    6l90 behind a 6.5

    Why'd he have to pull the TCM? You can just flash a calibration with HP Tuners which he should already have to be programming the trans?
  15. Quadstar Tuning LLC

    GMx turbo upgrades for towing heavy, worth it?

    We actually have a GM8 installed on our 94 right now with a pressure ratio logger on it, however, it's gross winter and we only drove it once on the last nice day we had. Not because we want to run the turbo, but because we got a better data logger than we used to have and want to save the data...
  16. Quadstar Tuning LLC

    Electric fuel pump/lift pump

    Yeah no worries there. We intentionally only carry premium pumps now to avoid callbacks and issues. We tried to supply the budget options and it took multiple years off our life expectancy :banghead:
  17. Quadstar Tuning LLC

    6l90 behind a 6.5

    Wiring diagrams come with the PCS controller. The TPS wiring and RPM signal connection will vary based on how you want to get those on your particular setup. We might share our calibrations after they are tested a little better. There's no VIN locking on a A6 TCM so it's really open for anyone...
  18. Quadstar Tuning LLC

    Electric fuel pump/lift pump

    We always say there's 100 ways to move fuel at 10psi. Pick your flavor and hope it holds up because there sure are a pile of them that won't.
  19. Quadstar Tuning LLC

    OK, bear with me - crazy ideas ahead!

    It's more a limitation of the physics of a rotary injection pump. You mechanically need to move more fuel volume within said window of rotation, then tune back the pulse width. A 5521 pump has a puny little cam ring to make it quiet(er) and therefore has to run a long pulse width to move...
  20. Quadstar Tuning LLC

    Intake Resonance

    One simple thing we haven't tried yet would be putting a stock double wall pipe x-over back on
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