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Old 06-25-2010, 03:27 PM   #41
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Andrew, let me know if going up to visit 18psi. I would like to tag along. I bought the setup from webby..just missing motor and turbo parts which will come later.
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Old 06-25-2010, 03:59 PM   #42
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Believe me, I CAN'T WAIT to get this **** up and running. as soon as its slapped together I'll let everyone know
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Old 06-26-2010, 12:02 AM   #43
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I lost the thrust bearing in the built motor in it's first 8 hours and it got all milled up internally. Not sure what happened. I'm staying n/a for autocross, either CSP or STS classed.

I didn't do flex fuel, just tuned for E85. Flex fuel is a smart idea, especially just for trimming for the seasonal blends. Here in NY we are at E70 for a good long while, and E80-85% for just a couple of months in the dead of summer. I never got to the point of the fuel switchover to more alky, so I never came up with a plan for when it switched. There is a map of the states available for when it switches, you could probably just road tune for it. I don't really think I would use flex fuel to run between gas and ethanol, as it's intended on factory vehicles. It's a pretty vast difference and I would be weary on a high specific output setup.

Railz, what's your question pertaining to na/nb? I'm going to be busy over the weekend, but if you guys want to know some of the philosophy behind my choices I could fill you in. Or, you could just ready the FAQ in the stickies . Just add 30% in flow rates for E85.

I'm back to stock fueling except for the walbro 190 and 450cc injectors. So simple and light. I can't wait to weigh in again!
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Old 06-26-2010, 12:15 AM   #44
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I believe Railz's question is gear towards NA.
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Old 06-26-2010, 12:24 AM   #45
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Would running WI with e85 be a waste? or be a even better advantage?
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Old 06-26-2010, 01:54 AM   #46
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I see absolutely no need for it whatsoever
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Old 06-26-2010, 11:19 AM   #47
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I would tend to agree. When running E85 you do not need it for knock suppression since the effective octane rating for E85 is so high. Also, E85 absorbs a lot more heat than gasoline so you do not really need it for charge cooling either. I would not bother, unless perhaps you are running a flex fuel setup where you use pump gas for an appreciable amount of time. In that case you might still want it when you are on gas.
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Old 06-26-2010, 03:36 PM   #48
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Quote:
Originally Posted by webby459 View Post
I didn't do flex fuel, just tuned for E85. Flex fuel is a smart idea, especially just for trimming for the seasonal blends. Here in NY we are at E70 for a good long while, and E80-85% for just a couple of months in the dead of summer. I never got to the point of the fuel switchover to more alky, so I never came up with a plan for when it switched. There is a map of the states available for when it switches, you could probably just road tune for it. I don't really think I would use flex fuel to run between gas and ethanol, as it's intended on factory vehicles. It's a pretty vast difference and I would be weary on a high specific output setup.
I've driven my car for almost two years straight on ethanol, and we have the same kind of blend calendar that you do...E70 fall/winter/spring, and E85 for the summer. I've never had any issues with the switchover on my car, I don't make any adjustments, and it's been pretty seamless. Unless you are tuned to the ragged edge, then chances are there will be no appreciable difference between E85 and E70 for the average user.

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Originally Posted by railz
Would running WI with e85 be a waste? or be a even better advantage?
What everyone else has said. A member on DSMTuners tried this and there was no advantage to using post-compressor WI for the reasons stated above regarding heat absorption and knock resistance. Pre-compressor WI, however, is another story and open to tons of debate, whether on ethanol or gasoline.
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Old 06-27-2010, 01:58 AM   #49
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Anybody know at what power level the stock fuel hard lines would become too small? They are 5/16" OD, guesstimating about 1/4" ID.

--Ferdi
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Old 06-27-2010, 02:01 AM   #50
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Quote:
Originally Posted by ftjandra View Post
Anybody know at what power level the stock fuel hard lines would become too small? They are 5/16" OD, guesstimating about 1/4" ID.

--Ferdi
A lot. The 410whp LS1 car we have here uses the stock fuel lines.
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Old 06-27-2010, 02:15 AM   #51
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Quote:
Originally Posted by Savington View Post
A lot. The 410whp LS1 car we have here uses the stock fuel lines.
410whp on E85? Yes, I forgot to mention the E85 part in my previous post...

--Ferdi
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Old 06-27-2010, 03:14 AM   #52
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Keep in mind he said LS1. Meaning the stock lines are feeding 8 cylinders.

So with that in mind, I'd say: YES they're capable of feeding a whole buttload to the bp 1.8. Even with 30% more that e85 requires.
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Old 06-27-2010, 03:51 AM   #53
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I'm going to start off on the stock fuel lines, and then if I max them I'll use them both as feeds and run my own -6AN return line.
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Old 06-28-2010, 05:19 AM   #54
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i see no need for bigger than stock lines on my setup yet. but not running E85 tho.
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