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      10-18-2021, 02:14 PM   #187
TopJimmy
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Drives: 2023 M3 Comp xDrive
Join Date: Jul 2019
Location: Chester County, PA

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Quote:
Originally Posted by heitzke View Post
Quote:
Originally Posted by TopJimmy View Post
Stock turbos + E85 custom tune = 600
Hybrid turbos + 93 custom tune = 630
Hybrid turbos + E30/50 custom = 650

With E85 on stock turbos you can run high HPFP pressure to hit 600, but risk failing an injector. Hybrid + 93 / E30 can run normal or slightly high HPFP. Hybrids + E50 and now you need to push high HPFP again. Is that risk worth 25HP?

BMC with stock boxes flow great and don't pull the IAT rise like under hood intakes do. I race on BMC. Front mount are better than OEM but can get dirty easy, and I prefer you use red cone filters with socks instead of steel cone filters.
That's all about what i've been reading and had assumed. Also contend that the extra power isn't worth taxing the factory fuel system haha.

I'll likely go EU5 and the lift kit but I want to try to space out some of my modding path. I guess I COULD do all the fueling first, retune and then go turbos and.. retune, but the turbos seem like a lot more fun to do first.
In your case I'd take the turbos with the 2H E30 map. That'll be a handful for a while, and then you can do the EU5/Dorch/E85 setup to get up to 700HP.
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