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  1. zfgracing

    CRP stage 4 build (lower than expected power levels)

    It's not so much what they do it's how they integrate into the factory ECU basically the factory computer is sending out a signal to the wastegate for position and getting a feedback signal measuring that position. And that's how the Boost is controlled by the computer unfortunately manual...
  2. zfgracing

    CRP stage 4 build (lower than expected power levels)

    Hard to say it really depends on a lot of things with bigger frame turbos it'll be capable of more then it would be with stock location turbo has again coming down to back pressure and other variables like that. And realistically it's not so much horsepower limit is it is a torque limit and I...
  3. zfgracing

    CRP stage 4 build (lower than expected power levels)

    Yeah you could definitely go the the stroker route with a big set of turbos I think the tack is finally catching up enough to make that viable to make decent horsepower the big thing we got to look for is turbos that utilize electric actuators that can talk to the factory ECU because that's the...
  4. zfgracing

    CRP stage 4 build (lower than expected power levels)

    What's your overall goal and budget because my answer depends on that. Sent from my SM-N975U using Tapatalk
  5. zfgracing

    CRP stage 4 build (lower than expected power levels)

    You can make bigger power on 91/93, you just need to go up in Turbo size. The crp won't be big enough, you'll need Borg Warner efr or Garrett G Series kit. Again working of the principle of dropping the back pressure and over all cylinder pressure and making everything more efficient. Also a...
  6. zfgracing

    CRP stage 4 build (lower than expected power levels)

    Pick the right tuner and it'll all be good! Sent from my SM-N975U using Tapatalk
  7. zfgracing

    CRP stage 4 build (lower than expected power levels)

    They perform about the same and the FIC's are a little bit cheaper. I sell both and I would say that I sell more fic injectors. Both are on my website. Sent from my SM-N975U using Tapatalk
  8. zfgracing

    CRP stage 4 build (lower than expected power levels)

    If you're not doing cams I would definitely do the port injection route. The problem with the Gen 2 3.5 L is they downsize the cam lobe for the fuel pump a lot so even if you put an HPFP-60 on it without changing out that cam lobe, it still might not be enough in fact it probably won't be...
  9. zfgracing

    CRP stage 4 build (lower than expected power levels)

    I would grab a set of fic 1000cc or id 1050x injectors. The stock Raptor pump is pretty good, about the same as the dw400 so even without a boost max it'll do 550-600 whp. And yes we can still make those work fine on pump gas. If you are going to do a built motor and all that you'll want to do...
  10. zfgracing

    CRP stage 4 build (lower than expected power levels)

    You'll need a little more than hpfp-evo if you want to run e85, just an FYI. The evo is only capable of supporting the stock turbos on e85 anything past that and you should really do port injectors. Sent from my SM-N975U using Tapatalk
  11. zfgracing

    CRP stage 4 build (lower than expected power levels)

    99% of my tunes retain the auto octane as a safety, even the ones advertised as 93 octane only. Very rarely do I shut it off. I've even done flex fuel with bigger turbos (pure turbos in this case which I do not recommend) but here were the result of flex fuel and dedicated E85. We didn't push...
  12. zfgracing

    GEN 2 E85 tune results! 180 whp+ over stock

    The raptor made 326whp. Sent from my SM-N975U using Tapatalk
  13. zfgracing

    CRP stage 4 build (lower than expected power levels)

    No that's definitely not the case the issue here is the tune and the fuel. These trucks are never going to make super great numbers on pump gas because you can only have so much cylinder pressure with 93 octane. But on the flip side on E85 these turbos are extremely capable and proven. I have...
  14. zfgracing

    CRP stage 4 build (lower than expected power levels)

    I think you need a retune Sent from my SM-N975U using Tapatalk
  15. zfgracing

    CRP stage 4 build (lower than expected power levels)

    I wouldn't say that the mechanical limits are you're more or less limited by Fuel. Five stars Dyno graphs are definitely generous but what you also have to consider is that e85 is going to be significantly more horsepower than 93 octane 100-150 hp more on the crp stage 4 turbos. But we are...
  16. zfgracing

    GEN 2 AMS boost tubes on a 2019

    I have 3-4 customers with them on 19s, they are harder to get on because one hose is a tight fit but they do fit. Sent from my SM-N975U using Tapatalk
  17. zfgracing

    GEN 2 AMS boost tubes on a 2019

    They do fit they are just a little harder to get on with the 19 and up. To take advantage of mods you really need to have a tune. Sent from my SM-N975U using Tapatalk
  18. zfgracing

    GEN 2 Custom Transmission Tuning

    Sent from my SM-N975U using Tapatalk
  19. zfgracing

    Cobb OTS tune and TCM....

    If you are not happy with Cobb switch to the hp tuners mpvi2 and a custom tune from me. $699 for the device and the tune that includes transmission tuning. Sent from my SM-N975U using Tapatalk
  20. zfgracing

    GEN 2 E85 tune results! 180 whp+ over stock

    No, not at this time. There is a lot of flex fuel parameters for did not put into the ECU logic. I can make it do "flex fuel" but it's not optimized. However it is something I'm considering offering because there is a significant demand for it even if it doesn't make the same amount of...
  21. zfgracing

    Engine knock

    Might just be gdi typical noise. Sent from my SM-N975U using Tapatalk
  22. zfgracing

    GEN 2 E85 tune results! 180 whp+ over stock

    Thanks! Sent from my SM-N975U using Tapatalk
  23. zfgracing

    GEN 2 Custom Transmission Tuning

    Custom Transmission Tuning I’m a little be newer to this forum but not new to EcoBoost tuning. I wanted to give you guys an idea of what can be done transmission tuning wise with HP tuners. I’ve been working with the 10r80 since I came out in 2017 and my transmission tuning has come a long...
  24. zfgracing

    GEN 2 Throttle Response Issue - Power Cutting Out

    scan for pending check engine lights Sent from my SM-N975U using Tapatalk
  25. zfgracing

    GEN 2 WHICH FMIC to buy?!!

    you need to be looking at your manifold charge temps not your IATs Sent from my SM-N975U using Tapatalk
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