99mx5 EFR build
#559
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The numbers listed are optimal, obviously not taking into account plumbing losses and such. I'd have to dig through the thread and figure out if he went boost reference on the FPR or if he stuck with the stock system, because that will have a significant effect on things as well.
Either way, 375 is absolutely nothing to sneeze at
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#560
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The result is in!
375WHP 319WTQ
This is on a Mustang dyno at 4000 ft elevation. I had plenty of fuel. The power level was affected by timing was being pulled by the knock sensor. The power was around 358WHP when the timing was pulled. The tuner said that 400 is achievable with more timing and race gas or E85 and bigger injectors.
![](https://www.miataturbo.net/attachments/build-threads-57/133198d1423867934-99mx5-efr-build-img_20150213_121422.jpg)
I have videos and logs of the pulls. I'll post them when I get out of work.
375WHP 319WTQ
This is on a Mustang dyno at 4000 ft elevation. I had plenty of fuel. The power level was affected by timing was being pulled by the knock sensor. The power was around 358WHP when the timing was pulled. The tuner said that 400 is achievable with more timing and race gas or E85 and bigger injectors.
![](https://www.miataturbo.net/attachments/build-threads-57/133198d1423867934-99mx5-efr-build-img_20150213_121422.jpg)
I have videos and logs of the pulls. I'll post them when I get out of work.