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  1. Mustang Dark Horse S650 N/A made 537whp on dyno with bolt-ons & tune

    Congrats. Let us know what it runs at the drag strip. I'd love to see the trap speed. Dont forget to log the run for Rob. Thats invaluable data right there.
  2. RPM redline on Tune?

    Bro you are about 3-4 degrees short on spark. Thats 93 tune spark. Stock is 25-26. A conservative e85 tune should be a solid 32*. If not more if the car likes it. I wouldn’t go further but I’ve seen logs from other tuners shit with 33-34* and one at 35. That’s bananas but 32 is like the gold...
  3. Whipple Calibration On Hold

    This was observed by other folks like Greg Banish in street and race car applications. You wont see the temp spike because these are inferred temps and when logged will follow the calibration's temp directive for that given load/RPM. I would have to go back and look at the logs I have on the...
  4. RPM redline on Tune?

    Mine are 8k. I've never seen any evidence of the car making power at 7950+++ without aftermarket intake manifold/cam setup. We tried for weeks running probably 50 different VCT cam angles all the way to 8500 and no matter what we did, the engine didnt want to make power that high. 7350 was...
  5. Flex fuel tune check engine

    Because it’s expensive.
  6. Flex fuel tune check engine

    Lol bro I got you. No need to get upset, the internet isnt that serious. Personally I wouldnt run anything but an FIC1k or ID1050 on that set up. Especially since tuning is out for whipple kits and you can easily read out that whipple tune and make the changes you need for injectors. At that...
  7. Flex fuel tune check engine

    What were the trims at? I would guess LTFTs at around 25%+ and the shorties in the 10s-teens. Maybe less on the shorties, but still you got a max headroom "I believe" around +or- 35%. Actually I've seen more I think. Its been a while since I've seen a log that far out. At this point in the...
  8. Flex fuel tune check engine

    In my opinion thats pushing the fuel trims way too far. I'd need to see a WOT log, but I can imagine you are approaching the limits of the fuel trims. And once you hit that wall, thats when you'll actually run lean and have problems. Or not. Maybe the bit of lean out you get might add a bit...
  9. Flex fuel tune check engine

    You’re so completely wrong it’s silly. You have both DI and PI fuel systems lol. And even on full e85, you still have a consistently observed 40-50% overhead when only warm blending in 10% PI injection. You still have a tremendous amount. Of NA headroom to run full e85, and it’s been this way...
  10. Flex fuel tune check engine

    I meant with mustangs. You said you were guessing that a real e content sensor wasn’t being used and this was correct because as I said , nobody uses them. Not on mustangs. They can’t be pinned in like on GM cars. Yes I’ve tuned several Camaros with the real e sensor added and the PCM will...
  11. Flex fuel tune check engine

    Nobody uses a real e content sensor. It’s all inferred from the widebands/fuel trims. And junkyard, the car has real time fuel trims anyway and can add or subtract 35% as needed safely. It’s not ideal but it’s fine for varying blends. It’s easier to just change the stoich to whatever is...
  12. Whipple Calibration On Hold

    Whipple has an update. Contact them directly.
  13. Flex fuel tune check engine

    You aren’t a tuning customer, not on this platform it sounds like. I’m about 46 and I feel where you’re coming from. I’m not my tuning customer either because I don’t call strangers “twin” and reply to every statement with “bet”. But 95% of my s550/s650 customers do. I don’t run and don’t...
  14. Flex fuel tune check engine

    Oh agreed. But a few have learned a very expensive lesson recently when they've been door to door or even walked by GTs with the same or more mods. This was a hard lesson for the GT350 guys when tuned GTs were walking those stock GT350s as well. And we are running the GTs to 8k RPM now, so...
  15. Flex fuel tune check engine

    No I didnt say that at all. I said once tuned, your DH is the same as a GT. or if it makes it go down smoother, the GT is brought up to the level of the DH...lol My opinion is for manual guys only wanting to run 91/93, there isnt much on the table for you. Sure refinement and now clutch...
  16. Flex fuel tune check engine

    Yes. There isn’t a tune difference once you tune out what ford tricked you into thinking was a difference. Stock to stock, the tune files are almost identical with the exception of a bit less tq management for the DH. That’s your extra power. Once removed, the GT makes the same power. Don’t...
  17. Flex fuel tune check engine

    ? you mean flex fueling? No we aren’t planning on ever doing a flex tune. But I’ve personally tuned several DHs. lol they are virtually the same as GTs with a bit less stock tq management. Hate to break it to you but a tuned GT vs a tuned DH is 1:1. There is no advantage to the DH once all...
  18. Flex fuel tune check engine

    Being on my end, all I’ve heard of was problems and this is going back to 2018.
  19. Flex fuel tune check engine

    This is why its rare anyone does these anymore. User issues 9/10 times. No offense OP, not even worth doing these.
  20. 2024+ Ecoboost S650 Mustang tuning now available via HP Tuners!

    Yeah no idea. I havent done one yet. Ive been pushing them off for months from guys wanting the burble/crackle tunes. Thats all they really want lol.





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