[Genieman]

What's the max power you can get on pump 93 without WMI or corn? And what would the build include to get there? Turbo? Hpfp (if no wmi or corn, is the TU enough, or Dorch1 or 2?) New clutch for my 6speed? DP (would go catted, probably AA), tune (assuming custom)? What am I missing?

[Glemm1970]

Thinking for a stock turbo a TU pump is enough. Without WMI and E85 additives, a 98Ron fuel will have a maximum of 480hp on the flywheel. On fuel 100 / 102Ron will be 520hp. In general, the boost limit for the stock turbo is 20psi, for a short time 21.5psi. The 22psi boost destroys the Bosh turbine.

[Glemm1970]

Вот последствия 22,5psi

[Genieman]

Originally Posted by Glemm1970

Thinking for a stock turbo a TU pump is enough. Without WMI and E85 additives, a 98Ron fuel will have a maximum of 480hp on the flywheel. On fuel 100 / 102Ron will be 520hp. In general, the boost limit for the stock turbo is 20psi, for a short time 21.5psi. The 22psi boost destroys the Bosh turbine.

That's helpful, but what about with turbo upgrade? Or is an upgrade even worthwhile if limiting to 93 octane?

[weehe126]

420whp on stock turbo with stock hpfp. Low 500whp with a Pure800 and the supra hpfp. Probably high 400whp with the GC turbo and supra hpfp.

[IMS-340C]

There was this thread not long ago on a M140i that did 600 whp on pump gas, upgraded turbo and HPFP.

The thread just died and no one confirmed if it was legit.

https://f30.bimmerpost.com/forums/sh....php?t=1673336

[cosworthpower]

Originally Posted by IMS-340MP

There was this thread not long ago on a M140i that did 600 whp on pump gas, upgraded turbo and HPFP.

The thread just died and no one confirmed if it was legit.

https://f30.bimmerpost.com/forums/sh....php?t=1673336

600whp ... The only way that's going to happen is with 102 octane gas..and a happy dyno

[B58togo]

Originally Posted by weehe126

420whp on stock turbo with stock hpfp. Low 500whp with a Pure800 and the supra hpfp. Probably high 400whp with the GC turbo and supra hpfp.

VTT got ~520 WHP on 93/TU pump.

https://f30.bimmerpost.com/forums/sh...&highlight=VTT

[weehe126]

Originally Posted by B58togo

VTT got ~520 WHP on 93/TU pump.

https://f30.bimmerpost.com/forums/sh...&highlight=VTT

Yeah, but Pure says they got 600whp on 95 and no one has come close even with E85. There are vendor numbers and real world numbers. So 480-500whp on the GC is probably reasonable on 93.

[Genieman]

Thanks guys. I probably phrased my initial question poorly. I'm not so much interested in the max power number, as there are too many variables like dyno type and tune that can affect the real power estimate, I guess what I'm really after is the build that would result in max power for pump 93. Turbo upgrade? Which turbo? (I know this one is subjective) Which fuel pump? Would I need dorch 2 for max power if not using WMI or corn or would dorch 1 or tu be enough? For tunes, are there generic or OTS tunes for this type of setup or is custom tune my only option?

[yokata]

Originally Posted by Genieman

Thanks guys. I probably phrased my initial question poorly. I'm not so much interested in the max power number, as there are too many variables like dyno type and tune that can affect the real power estimate, I guess what I'm really after is the build that would result in max power for pump 93. Turbo upgrade? Which turbo? (I know this one is subjective) Which fuel pump? Would I need dorch 2 for max power if not using WMI or corn or would dorch 1 or tu be enough? For tunes, are there generic or OTS tunes for this type of setup or is custom tune my only option?

For 93 gas i think the TU pump will do the job with pure800 or vtt gc turbo upgrade and custom map.With that setup plus catless downpipe you have to be around 600 crank hp

[johnung]

Originally Posted by Genieman

Thanks guys. I probably phrased my initial question poorly. I'm not so much interested in the max power number, as there are too many variables like dyno type and tune that can affect the real power estimate, I guess what I'm really after is the build that would result in max power for pump 93. Turbo upgrade? Which turbo? (I know this one is subjective) Which fuel pump? Would I need dorch 2 for max power if not using WMI or corn or would dorch 1 or tu be enough? For tunes, are there generic or OTS tunes for this type of setup or is custom tune my only option?

I had a similar conversation with Pure Turbos recently concerning the various fuel pump options. Assuming that my fueling was 93 octane pump gas, I wanted to understand which fuel pumps would have more than enough if I upgraded my turbo in the future.

I have an N55 but some of this may help with your B58 questions. Pure said the baseline on the N55 with stock turbo, stock fuel pump on 93 octane is about 400whp. They said that the N55 with a Pure Turbos Stage2 turbo upgrade, the B58TU (Supra) fuel pump on 93 octane would max out at roughly 480whp.

I asked if the TU pump was maxed out at that point and was told no because the Supra with an upgraded turbo could get to 580whp on its TU pump.

So either the TU pump or the Dorch1 should more than do the job based on the attached table from Dorch.

I suggest that you call Pure Turbos to ask similar questions about the various fuel pumps and power outputs on the B58 engine on 93 octane.