E85 with a Stillen supercharger?

phunk · 09-25-2014, 02:42 PM

Ya it can take some messing around to get the idle pressure right with a big pump. But its unrelated to the return system mostly, as its a problem with how the fuel pump module re-purposes the return fuel to power a couple of restrictive venturis. But being that your car is boosted, I would have done/recommended the return system for the sake of fuel volume on top. With E85, you would be pushing it and most likely see pressure drop near redline.

phunk · 09-25-2014, 02:44 PM

I think a confusing thing that is causing a lot of back and forth in the E85 threads is the 2 different interpretations of "what is needed for e85"?

When people ask this question, they can mean it one of two ways:

1: what is needed for fuel system compatibility with e85
2: what is needed to support the flow/volume for e85

But rarely specify which of the 2 they are asking.

The replies come in the same 2 flavors, and again, nobody specifies which question they were answering.

So I would like to reiterate here that for the sake of E85 compatibility, nothing in the 370z needs to change. For the sake of E85 flow/volume requirements, most people will need injectors and/or pump, and maybe a RFS, pending what they already have in there and how much power they intend to make.

JWillis72 · 09-25-2014, 03:55 PM

Well that sucks! Glad I asked, I just looked it up and there is only one E85 pump around here and it's a long ways from me!

dmhenderson · 09-25-2014, 04:02 PM

Bear in mind that E85 burns 2-3x faster than regular pump gas too (iirc) so you're gonna need to know where you can fill up at all times.

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JWillis72 · 09-25-2014, 04:18 PM

Quote:

Originally Posted by dmhenderson

Bear in mind that E85 burns 2-3x faster than regular pump gas too (iirc) so you're gonna need to know where you can fill up at all times.

Sent from my iPhone using Tapatalk

Hmm... That also means I need place between me and the Florida tracks, this could be a problem because I travel through the middle of nowhere.

phunk · 09-25-2014, 04:04 PM

I wouldnt depend on the out-dated websites. I would ask locals who run it... they will know where it really is. At least around here, the websites show places having it that havent in a very long time, and do not list many of the places that do now.

dmhenderson · 09-25-2014, 05:20 PM

Quote:

Originally Posted by phunk

I wouldnt depend on the out-dated websites. I would ask locals who run it... they will know where it really is. At least around here, the websites show places having it that havent in a very long time, and do not list many of the places that do now.

There are a couple phone apps that are pretty accurate from what I've seen so far.

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JWillis72 · 09-25-2014, 05:24 PM

Quote:

Originally Posted by dmhenderson

There are a couple phone apps that are pretty accurate from what I've seen so far.

Sent from my iPhone using Tapatalk

Know what they are called?

JWillis72 · 09-25-2014, 04:15 PM

Ok I'll ask around, my tuner knows where several are but he's 1 1/2 hours from me.

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JWillis72 · 09-25-2014, 04:24 PM

This looks hopeful, I guess I need to start checking places out and see who really has it.

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phunk · 09-25-2014, 08:01 PM

I have put 93 in and driven on my e85 tune. I stayed out of boost because it would be too much timing and too rich, but just driving around mostly low throttle, other than the terrible smell of pump gas without cats, im not sure i could tell the difference.

So i guess that right there is my 1st person evidence that 1000cc are fine with 93 LOL, it was probably just something i was screwing up when first starting tuning.

dmhenderson · 09-25-2014, 09:09 PM

Quote:

Originally Posted by phunk

I have put 93 in and driven on my e85 tune. I stayed out of boost because it would be too much timing and too rich, but just driving around mostly low throttle, other than the terrible smell of pump gas without cats, im not sure i could tell the difference.

Don't have that luxury with a supercharger. I mean, you could keep it really low but it's not like a turbo where you can just keep it completely out.

Quote:

So i guess that right there is my 1st person evidence that 1000cc are fine with 93 LOL, it was probably just something i was screwing up when first starting tuning.

To be fair, it took Frank who is a wizard with Uprev almost a full week to get it right.

Pro4Jackster · 09-26-2014, 07:59 AM

Quote:

Originally Posted by dmhenderson

Don't have that luxury with a supercharger. I mean, you could keep it really low but it's not like a turbo where you can just keep it completely out.

I had no problems keeping the car in vacuum when I was supercharged. Stay light on the throttle and the BPV stays open.

roplusbee · 09-26-2014, 05:31 AM

Check the finished builds. I have ID1000s and I am on 93. I would do e85 like Phunk, but I can't reliable make my trip from Fort Hood to Baltimore without risking getting stranded somewhere and/or carrying fuel with me. So 93 it is........

Edit: so it seems I never added my info to the finished builds (damn son, where'd you find this?). I just submitted my info, lol.

Sent from my SGH-T889 using Tapatalk

dmhenderson · 09-26-2014, 09:36 AM

I'd rather just not chance it. It's easy enough to flip between tunes.

09-25-2014, 02:42 PM	#1 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,669 Drives: 370 Rep Power: 974724	Ya it can take some messing around to get the idle pressure right with a big pump. But its unrelated to the return system mostly, as its a problem with how the fuel pump module re-purposes the return fuel to power a couple of restrictive venturis. But being that your car is boosted, I would have done/recommended the return system for the sake of fuel volume on top. With E85, you would be pushing it and most likely see pressure drop near redline. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

09-25-2014, 02:44 PM	#2 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,669 Drives: 370 Rep Power: 974724	I think a confusing thing that is causing a lot of back and forth in the E85 threads is the 2 different interpretations of "what is needed for e85"? When people ask this question, they can mean it one of two ways: 1: what is needed for fuel system compatibility with e85 2: what is needed to support the flow/volume for e85 But rarely specify which of the 2 they are asking. The replies come in the same 2 flavors, and again, nobody specifies which question they were answering. So I would like to reiterate here that for the sake of E85 compatibility, nothing in the 370z needs to change. For the sake of E85 flow/volume requirements, most people will need injectors and/or pump, and maybe a RFS, pending what they already have in there and how much power they intend to make. BGTV8, jwick, dmhenderson and 1 others like this. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

09-25-2014, 04:02 PM	#4 (permalink)
dmhenderson A True Z Fanatic Join Date: Feb 2011 Location: Maryland Posts: 5,930 Drives: AWD TT 370z Rep Power: 27	Bear in mind that E85 burns 2-3x faster than regular pump gas too (iirc) so you're gonna need to know where you can fill up at all times. Sent from my iPhone using Tapatalk __________________

09-25-2014, 04:04 PM	#6 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,669 Drives: 370 Rep Power: 974724	I wouldnt depend on the out-dated websites. I would ask locals who run it... they will know where it really is. At least around here, the websites show places having it that havent in a very long time, and do not list many of the places that do now. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

09-25-2014, 08:01 PM	#11 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,669 Drives: 370 Rep Power: 974724	I have put 93 in and driven on my e85 tune. I stayed out of boost because it would be too much timing and too rich, but just driving around mostly low throttle, other than the terrible smell of pump gas without cats, im not sure i could tell the difference. So i guess that right there is my 1st person evidence that 1000cc are fine with 93 LOL, it was probably just something i was screwing up when first starting tuning. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

09-25-2014, 03:55 PM	#3 (permalink)
JWillis72 A True Z Fanatic Join Date: Sep 2013 Location: Fort Myers FL Posts: 2,002 Drives: 2009 370Z yellow 7AT Rep Power: 45	Well that sucks! Glad I asked, I just looked it up and there is only one E85 pump around here and it's a long ways from me!

09-25-2014, 04:15 PM	#9 (permalink)
JWillis72 A True Z Fanatic Join Date: Sep 2013 Location: Fort Myers FL Posts: 2,002 Drives: 2009 370Z yellow 7AT Rep Power: 45	Ok I'll ask around, my tuner knows where several are but he's 1 1/2 hours from me. Sent from my iPhone using Tapatalk

09-25-2014, 04:24 PM	#10 (permalink)
JWillis72 A True Z Fanatic Join Date: Sep 2013 Location: Fort Myers FL Posts: 2,002 Drives: 2009 370Z yellow 7AT Rep Power: 45	This looks hopeful, I guess I need to start checking places out and see who really has it. Sent from my iPhone using Tapatalk

09-26-2014, 05:31 AM	#14 (permalink)
roplusbee A True Z Fanatic Join Date: Dec 2009 Location: Killeen, TX Posts: 2,360 Drives: 2007 350Z NISMO Rep Power: 23	Check the finished builds. I have ID1000s and I am on 93. I would do e85 like Phunk, but I can't reliable make my trip from Fort Hood to Baltimore without risking getting stranded somewhere and/or carrying fuel with me. So 93 it is........ Edit: so it seems I never added my info to the finished builds (damn son, where'd you find this?). I just submitted my info, lol. Sent from my SGH-T889 using Tapatalk __________________ 2007 350Z NISMO #0618: Zerolift \| UPREV \| F.I. \| Greddy \| Competition Clutch \| Injector Dynamics \| Aeromotive \| Pioneer \| JL Last edited by roplusbee; 09-26-2014 at 11:37 AM.

09-26-2014, 09:36 AM	#15 (permalink)
dmhenderson A True Z Fanatic Join Date: Feb 2011 Location: Maryland Posts: 5,930 Drives: AWD TT 370z Rep Power: 27	I'd rather just not chance it. It's easy enough to flip between tunes. __________________

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