[SPLIC3D]

Ive been on the fence about going to a full E85 tune, im currently FBO with a VRSF catless downpipe, intercooler, BM3 tune and an Ingen intake. I havent seen many people do E85 on their N20s, would a LPFP be good to run full E85 and can the engine handle it or are there other upgrades needed?

[Kraklz]

Originally Posted by SPLIC3D

Ive been on the fence about going to a full E85 tune, im currently FBO with a VRSF catless downpipe, intercooler, BM3 tune and an Ingen intake. I havent seen many people do E85 on their N20s, would a LPFP be good to run full E85 and can the engine handle it or are there other upgrades needed?

For a full E85 tune on stock turbo all you need is a B58TU HPFP. To fit a B58TU HPFP you also need a low pressure fuel line and if your car is older than 2014 you also need a wiring harness. No need to upgrade the LPFP. Even on upgraded turbos they do fine.

You can get an E85 kit here https://iposmotorsport.com/products/n20-full-e85-kit

[sqwinny]

Originally Posted by SPLIC3D

Ive been on the fence about going to a full E85 tune, im currently FBO with a VRSF catless downpipe, intercooler, BM3 tune and an Ingen intake. I havent seen many people do E85 on their N20s, would a LPFP be good to run full E85 and can the engine handle it or are there other upgrades needed?

Stock LPFP is good for 450whp on full e85. No hybrid turbo on the market can outflow it at the moment outside of a custom setup.

Engine will be fine. Stock n20/n26 turbo maxed out around 31-32 lb/min for air flow, and with multiple sets of data for n20/n26, on the stock turbo MAF readings is pretty close to power at the wheels. 100% stock turbo + all FBO (you are missing a turbo inlet to help a little more) + b58tu HPFP retrofit (doesn’t need a tune for this HPFP), custom tune you are looking 310-320whp on full ethanol.

Fueling setup for this dyno and the bigger turbo:

stock LPFP
B58tu HPFP
S63tu injectors

https://youtu.be/qboROltR6gg

[SPLIC3D]

Do the stock fuel lines handle the E85? I see many kits sending full lines as well? Is it necessary to do this change?

Also awesome build, I've seen it a couple times and love it!

[sqwinny]

Nonissues with 3+ years of running the fuel setup.

You can’t fit the b58tu HPFP without a custom fuel feed line. This video will show how the factory lines line up and thus a custom line is required.

https://youtu.be/FqYYnmYffEk?si=l2xrdbk6wwwIlwkB