E85

[prowlerflyer]

What's your thoughts on our cars running E85, at least periodically. I am aware of the potential harsh corrosive nature of E85. Is our fuel system up to the task of running it occasionally? Honestly, I am most interested in the performance boost on occasion.

Cheers

[san]

I think E85 does not offer any performance gains... The advantage is being environmental friendly only I think... I think gasoline has a higher energy density... So for E85 to make economic sense for us it has to be way cheaper to offset the difference in energy density... I maybe wrong but this is what I remember reading...


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[Hermes]

E85 is not worth it unless you are FI

[UdubBadger]

E85 retards the timing on F/I cars which allows more power power to be made.

This isn't really the case on an NA car and you need specific tuning to do so anyway.

Best bet for NA is tune it, buy 93 and dump in a can of STP octane booster if not a fan of bolt on mods..


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[az3579]

The OP has an ESS TS2 supercharger.

[UdubBadger]

That's info I didn't have :facepalm


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[UdubBadger]

Prowler is ESS releasing E85 tuning?


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[Hermes]

That's info I didn't have :facepalm


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+1

[HokieZHP]

Well I drive a 335 that is heavily modded and I run an e40 e85 mix in my car occasionally and absolutely love it! It is a very noticeable performance boost and gets me to around 430-450whp at the wheels! If you have the ability to log that'll be your best friend. The main issue are the fuel pumps so you'll need to check those values while logging. For instance in my car anything over e40-e50 and the stock LPFP will struggle. If it's only on occasion then your injectors should be fine but if you run it all the time then new ones are most likely needed.

I'm not sure about in boosted e46 cars but I'd do some research on the fuel pumps because I think that would be the area for concern. I don't see why an e30-e40 mix wouldn't be possible though.

[prowlerflyer]

I have not asked ESS if I have to get a separate tune for E85. Was merely perusing options because currently I have easy access to E85. Honestly it will be moot in two months when I put the car in long term "storage" with my father for the next several years.

[UdubBadger]

Was pretty sure you need tuning for it to take advantage of its benefits.

[HokieZHP]

Was pretty sure you need tuning for it to take advantage of its benefits.

^yup, tuning is needed to fully take advantage of e85.

[wertyu78]

+1, tuning will allow for the benefits to be noticeable, performance-wise.

Funny this thread came up, considering I just found a gas station very close to me that has E85 at the pump. I moved to SoCal last year and didn't think it existed out here - coming from South Carolina... I'm used to it being everywhere. I will occasionally run up to an E40 blend in my ZHP "just because".

I've pulled apart a few motors that have run E85 only and was impressed with how clean they were compared to similar motors run on a good blend of 93 (Shell V-Power). It certainly doesn't hurt anything.