E85 with a Stillen supercharger?

phunk

Everything in the 370z fuel system is fine with E85.

For any boosted 370z on e85: 1000cc injectors!

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ANMVQ

have you tested this? The pump injectors and line are all fine? So all you would have to do is tune for e85 then? Oh and find as station to get it at?

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Chuck33079

No, he means that all the lines and such are compatible with E85. You still need injectors and pump.

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ANMVQ

Ah and tune of course. Is this even "worth" it WHP on a bolted car or just for FI. Thanx

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phunk

I don't think you would need to upgrade the fuel pump. But you're right my point is that there is no problem with e85 compatibility. As for if your fuel system provides enough volume for it is another issue.

Edit nevermind I was thinking the stock injectors were 440cc but I believe they are actually like 310cc so injectors would be pretty much for certain, sorry.

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Chuck33079

Plus, as cheap and easy as it is to throw in a Walbro 255 at the bare minimum wouldn't it make sense to give yourself headroom?

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2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

1slow370

Yeah the stock injectors run out of fuel right around 350whp, for FI e85 I would say to go with a stealth or aem e85 pump minimum if you plan to be over 500hp the 255 in all the FI kits will be running hard on alcohol at that point.

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phunk

Agreed, a big pump is a must for a boosted e85 370z. I was only thinking of all-motor use when I said I think a stock pump would be good-to-go for E85.

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jwick

Phunk is your entry return system (S0 or S1, can't remember the numbering off the top of my head) enough for a e85 return set up or would you recommend something more?

FYI...I wouldn't be looking at e85 for a ton more power but to give me safety on the 500-500whp I'd like to run.

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Nissan370

im running automotive 485lph fuel pump, cjm stage 0 return fuel setup and 1000 id injectors

my only problem is i still have most of my water/meth kit still hooked up from when i had the stillen. and i am thinking should i just rewire the water/meth kit back in to work with the turbo or just remove it and go fuel e85 ( closes station is 20mins away)

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370z vsr motorsports single turbo/built motor 9.1cr 525rwhp/450rwtq @ 10.5psi (stock maf maxed out)

phunk

The S1 kit will do about 600rwhp Dynojet with E85 with the Aeromotive pump and 1000cc injectors (maybe more?) pending everything else. It can be a little different from car to car. The higher boost pressure you need to make your power, the earlier you will max-out the fuel system setup (this is due to pressure differentials and pumps reduced output at higher operating pressures)... also the more conservative your tuning is, same thing.

The 370z is super sensitive to this stuff as 1 psi can be 30-40hp and 1 degree of timing can be 20hp. So imagine that a guy running 2-3 degrees more timing can make a lot more power on the same fuel volume.

But until I swapped to my S2-SE fuel system a couple months back, I was running a one-off setup that was lesser than my S1 kit, and I made 586rwhp at 9psi E85, and used to run a little more boost on the street. So I know its good for it.

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dmhenderson

Not if you're supercharged and you want dual maps for both E85 and pump gas it's not. My fuel pressure spiked to 71 psi on 93oct when the bigger fuel pump and injectors went in. Dremeling out the swirl her only dropped it to 68psi.

Edit: Phunk is probably right if you are ONLY going to run E85 but E85 stations are not all that common and you need to have a backup plan that doesn't involve a flatbed unless you get stranded (or you're building a dedicated track car)



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JWillis72

Are you saying I won't be able to have a pump gas tune and E85 at the same time?


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phunk

The answer to that is in the question: Has anyone tuned a 370z with gasoline/93 and 1000cc injectors?

I tried and wasnt able to get it to run clean... but it was also my very first time even opening up the UpRev software. Thats why I originally made the switch to E85, as a bandaid to water down my injectors since I wasnt able to get them to run clean. But I got hooked on it and never looked back.

I wouldnt be even remotely surprised if more experienced UpRev tuners have done it without a problem. Heck, I might even be able to if I tried again now.

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theDreamer

I believe DM is running a 93 tune and finishing up his e85 tune so he can run either if ever required.
Jwillis, you can run multiple tunes, but if going to e85 I would just go all the way to make it easier. Though need to evaluate your e85 stations and plans with the car.

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