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  1. zfgracing

    Stage 4 CRP Turbos Revisted (ZFGRACING)

    Didn't think you were ready to release that yet so I wasn't going to say anything but yes this is definitely the solution. Here is what to look for in the data log. Sent from my SM-N986U using Tapatalk
  2. zfgracing

    Stage 4 CRP Turbos Revisted (ZFGRACING)

    Here is one I did on e85 in 2019. E85 was 180 hp over stock and 80 over 93 tune. I did his brothers Expedition with the exact same mods even down to the brand and picked up over 200 wheel horsepower thanks to the extra half a point of compression the none ho has. Now in terms of longevity...
  3. zfgracing

    Stage 4 CRP Turbos Revisted (ZFGRACING)

    Low 12s on e85 if you are talking stock tire size. No added weight etc. Sent from my SM-N986U using Tapatalk
  4. zfgracing

    Stage 4 CRP Turbos Revisted (ZFGRACING)

    I don't see many customers running raptors but I've seen 12.1 on draggy with e85, intercooler and intake. Under 4k in mods, under 3 if you do it on the cheap. Just be careful the dodge guys very offended! I tuned an explorer st that beat a track hawk and they lost their minds with excuses...
  5. zfgracing

    Stage 4 CRP Turbos Revisted (ZFGRACING)

    We only support hp tuners at this time. Sent from my SM-N986U using Tapatalk
  6. zfgracing

    Stage 4 CRP Turbos Revisted (ZFGRACING)

    I would do the 1000cc. Those are the best compromise between High flowing and good idle characteristics. Sent from my SM-N986U using Tapatalk
  7. zfgracing

    Stage 4 CRP Turbos Revisted (ZFGRACING)

    Can easily be tuned for and made non existent. Sent from my SM-N986U using Tapatalk
  8. zfgracing

    Stage 4 CRP Turbos Revisted (ZFGRACING)

    Nope not it is tuned correctly (don't get me wrong it takes some good tuning) but generally speaking 1000cc are good to go. The 1000cc and 1050x are very well behaved. Sent from my SM-N986U using Tapatalk
  9. zfgracing

    Stage 4 CRP Turbos Revisted (ZFGRACING)

    Yeah it should do e50 just fine. That'll be enough to get him addicted to ethanol. Lol Sent from my SM-N986U using Tapatalk
  10. zfgracing

    Stage 4 CRP Turbos Revisted (ZFGRACING)

    Been there before! I've been to TEEX a few times. I used to travel to the Huston and port Arthur area a bunch for my day job, but haven't been there since a few months before covid. It's not bad, 2 hour job just need to take the intake manifold off and there are right there. I have a guy/shop...
  11. zfgracing

    Stage 4 CRP Turbos Revisted (ZFGRACING)

    Grab an injector upgrade and we can do 91 93 and e85 tunes for ya. That rmb motor should be able to take everything we can throw at it, we just can't get too carried away on the actual boost pressure with the stock valve springs. What part of Texas are you in? Sent from my SM-N986U using...
  12. zfgracing

    Stage 4 CRP Turbos Revisted (ZFGRACING)

    580 is relatively safe so long as the torque is managed well. Sent from my SM-N986U using Tapatalk
  13. zfgracing

    Stage 4 CRP Turbos Revisted (ZFGRACING)

    Your peak torque looks a little late ( could be just what RPM Mike tipped in at) you power is on par with what I would expect on 93, hard to say for sure without a stock baseline because raptors seem to dyno all over the place. On e85 we would be looking to keep the torque low (550 wheel) and...
  14. zfgracing

    Stage 4 CRP Turbos Revisted (ZFGRACING)

    If you are doing bigger turbos and don't mind a little longer install I recommend doing the port fuel injector upgrade. The cost difference just didn't out weigh the benefits. For FIC 1000cc port fuel injectors you are looking at $655 vs $2500 for the hpfp-60. Also because the the Gen 2 uses a...
  15. zfgracing

    Stage 4 CRP Turbos Revisted (ZFGRACING)

    Not on pump gas no, the pervious tuner didn't adjust the blend table for di/pi and was running way too rich, so it looked like fuel system was struggling but it wasn't. If you are staying on pump gas you shouldn't need to upgrade anything fuel system wise. The power drop off was also tune...
  16. zfgracing

    Stage 4 CRP Turbos Revisted (ZFGRACING)

    Just an FYI if you want to run e85 you need do port injectors or the hpfp-60. The evo pump is not large enough. Sent from my SM-N986U using Tapatalk
  17. zfgracing

    Stage 4 CRP Turbos Revisted (ZFGRACING)

    Thanks for the great review! The cr performance turbos are game changes for sure! In case anyone didn't see yet the EcoBoost 1/4 mile record was reset this week with a set of crp stage 4s on board! If you are on the fence they are definitely worth it with right tuning even on 93 octane although...
  18. zfgracing

    CRP stage 4 build (lower than expected power levels)

    Put some crp stage 4s to work last night and broke the f150 ecoboost 1/4 record (my tuning not my truck). These things are the real deal with the combo of parts, fuel and tuning. Sent from my SM-N986U using Tapatalk
  19. zfgracing

    New engine

    On an na application? Sent from my SM-N986U using Tapatalk
  20. zfgracing

    New engine

    You guys need to stop worrying about E85 affecting your engines negatively modern materials are compatible with E85. I have gen 2 3.5l with 75k plus miles on e85 with no issues. 496 whp on 93 octane is pretty good depending on the baseline. Sent from my SM-N986U using Tapatalk
  21. zfgracing

    New engine

    If you can ditch a lot of rotating Mass, you can run the 3.1x-3.2x. Case and point 4x4 xlt on stock turbos. Definitely lighter than a raptor by a little, geared better etc etc. Just an example of how a different the setup can play into the times. This truck was a touch under 600 whp on...
  22. zfgracing

    New engine

    Yeah it'll make 1000 one day soon. It's gonna be way up there by the time is all said and done. You need to do the trans too, big turbo kit (stock frame turbos are just too small) would be silly not to do the heads too. I wouldn't even want to take stab at the number other than say between 20...
  23. zfgracing

    New engine

    4.2l with efrs on 93 with a little c16. Sent from my SM-N975U using Tapatalk
  24. zfgracing

    CRP stage 4 build (lower than expected power levels)

    I hate to be a Debbie downer here yeah the short block is only 6000 and will support 1000 whp but if you just swap that in and leave everything else alone your not going to make any more hp than you would stock. And even with a $6000 short block you still have to assemble the long block, and...
  25. zfgracing

    CRP stage 4 build (lower than expected power levels)

    Not really, you can't use those turbos. They are large frame turbos with a totally different manifold and the turbos like 2 or 3k each. Not worth it at all. There are also a lot of motor difference, dry sump and things like the intake manifold and exhaust manifolds are all geared for top end...
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