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SmokedSS

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Our test car does not have 13psi, we have seen spikes at the RPM limit of .5psi more, and the original cal had 1psi more boost with different cam scheduling.

10.9 is 100% correct with a 3.75" pulley. Change to a 3.625" and that will add 1psi more, 20-25rwhp.
My bad, I read the 1st post and did not see the pulley size later of 3.625.. Love my 651 RWHP @ 10.9 PSI was just curious.. Guess I should have read the entire post :)
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My bad, I read the 1st post and did not see the pulley size later of 3.625.. Love my 651 RWHP @ 10.9 PSI was just curious.. Guess I should have read the entire post :)
Humidity may have made it be down 5-15rw but your right there. Since you have 93, you can try the 3.625" but would recommend the higher flowing injectors or a bap, injectors being the best.
 

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Humidity may have made it be down 5-15rw but your right there. Since you have 93, you can try the 3.625" but would recommend the higher flowing injectors or a bap, injectors being the best.
Don't recommend that. I'm maxed out on pump gas on the 3.725. I was on the 3.625 and my tuner pulled it off in fear of detonation.

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Don't recommend that. I'm maxed out on pump gas on the 3.725. I was on the 3.625 and my tuner pulled it off in fear of detonation.

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Whipple's tuner works for Ford at the OEM level, and they build them. Why would your install/tune guy have better knowledge than the OEM?
 

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OhNo5.0

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Whipple's tuner works for Ford at the OEM level, and they build them. Why would your install/tune guy have better knowledge than the OEM?
Lund is pretty smart. I trust my tuner rather than a few people's experience.

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Lund is an awesome tuner but he doesn't have the same control over the PCM and engine that Whipple has and is limited with pump gas. Give it E85 and he will turn it up!
 

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Don't recommend that. I'm maxed out on pump gas on the 3.725. I was on the 3.625 and my tuner pulled it off in fear of detonation.

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We've been doing it for a year now and have a tremendous amount of them running that. All testing was done with a 3.625". As for detonation, we spent countless hours coming up with the new knock logic and feels it's the most advanced available today for the coyotes. I wouldn't post it if I didnt feel you couldn't run it.....
 

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Lund is pretty smart. I trust my tuner rather than a few people's experience.

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Lund is brilliant and for aftermarket tunes on the 15-16, I don't know of any that has the control and ability as Lund. But your comparing 2 different things.

Our advanced engineers were involved with the code that is in the PCM, the architecture and how to calibrate it. We spent countless hours in wind tunnels and environmental labs using advanced equipment aftermarket can't have. We have the throttle body, maf and injectors flowed within a lab to get exact measurements.

We have our own code, our own supercharger model and unique algorithms that are years ahead of production. so if we feel one is safe then it wasn't just because we made it up, we tested at a level far exceeding most to validate it.

If your tuner felt 3.75" was max then you have to respect that. We feel different but the calibrations are different so it truly depends on what best fits your needs.
 

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If I add a JMS FuelMax later, do I need to re-tune for that? Also, do you guys recommend that? I did the 72 lb injectors.
 

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My bad, I read the 1st post and did not see the pulley size later of 3.625.. Love my 651 RWHP @ 10.9 PSI was just curious.. Guess I should have read the entire post :)
So you made 651rwhp? That's exactly what I made! :headbang: where did you dyno it at?
 
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