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Join Date: Jul 2013
Posts: 1,110
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E-85 and PMO carbs?
Anyone done this? I know a number of rally and other motorsport guys in my area running E-85 on all kinds of crazy boosted applications. Besides the fuel line issues, does anyone see any reason PMO carbs might not like it?
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02-12-2015, 12:07 PM
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Straight shooter
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Lots of soft metals in those precious carbs... I sure wouldn't want to experiment. E85 is popular with boosted applications where the detonation resistance and relative volume of fuel in mixture is of far greater benefit. On all-motor you won't see the same magic.
__________________
“Of the value traps, the most widespread and pernicious is value rigidity. This is an inability to revalue what one sees because of commitment to previous values. In motorcycle maintenance, you MUST rediscover what you do as you go. Rigid values makes this impossible.” ― Robert M. Pirsig, Zen and the Art of Motorcycle Maintenance: An Inquiry Into Values |
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02-12-2015, 01:05 PM
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My motor ended up at 10.75:1 and I was thinking it might make a good alternative to unleaded race gas.
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02-12-2015, 01:49 PM
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Straight shooter
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What state are you in? Is the car equipped with a catalyst? Street or track? Single or twin plug?
__________________
“Of the value traps, the most widespread and pernicious is value rigidity. This is an inability to revalue what one sees because of commitment to previous values. In motorcycle maintenance, you MUST rediscover what you do as you go. Rigid values makes this impossible.” ― Robert M. Pirsig, Zen and the Art of Motorcycle Maintenance: An Inquiry Into Values Last edited by Lapkritis; 02-12-2015 at 02:40 PM.. |
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02-12-2015, 02:24 PM
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Registered
Join Date: Jul 2001
Location: Portland Oregon
Posts: 7,007
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Quote:
 E85 & carburetors are mutually exclusive. That fuel is best suited for FI.
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Steve Weiner Rennsport Systems Portland Oregon (503) 244-0990 porsche@rennsportsystems.com www.rennsportsystems.com |
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02-12-2015, 08:05 PM
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Quote:
Rally america rules limit fuel to 100 octane, but do allow E85. I have a few buddies who are running E85 in high compression NA motors with good results. One thing to keep in mind is that a rally car here will run 120 stage racing miles at any given event and up to another 150 of transit from stage to stage. This adds up to a lot of race gas. |
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02-13-2015, 01:38 AM
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Straight shooter
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If EFI is an option for the competition then would you reconsider? Some aftermarket efi have automatic table switching and use a flex fuel sensor. This would also allow for knock control and race options (if no catalyst) such as launch control, traction control, flat shift... Etc.
__________________
“Of the value traps, the most widespread and pernicious is value rigidity. This is an inability to revalue what one sees because of commitment to previous values. In motorcycle maintenance, you MUST rediscover what you do as you go. Rigid values makes this impossible.” ― Robert M. Pirsig, Zen and the Art of Motorcycle Maintenance: An Inquiry Into Values |
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02-13-2015, 03:30 AM
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This is still an option as our class rules are quite lenient. That said, a cat must be part of the exhaust. I actually have a very high cell count core that was produced for WRC cars and planned to integrate that into the system eventually.
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02-13-2015, 03:48 AM
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Straight shooter
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Check out http://www.VEMS.us
Supports table switching/flex fuel sensor. Lots of advanced options and bargain price.
__________________
“Of the value traps, the most widespread and pernicious is value rigidity. This is an inability to revalue what one sees because of commitment to previous values. In motorcycle maintenance, you MUST rediscover what you do as you go. Rigid values makes this impossible.” ― Robert M. Pirsig, Zen and the Art of Motorcycle Maintenance: An Inquiry Into Values |
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02-13-2015, 04:27 AM
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Join Date: May 2010
Location: atlanta
Posts: 1,981
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Quote:
Quote:
I don't think the carbs would play nice with a cat. |
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02-13-2015, 07:24 AM
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I suggest you go to the expert - Richard at PMO will be happy to discuss it with you. Send him a note via FAX and include your phone and/or email. His fax is 310-394-6313
HTHs LarryT 74 911 |
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02-15-2015, 08:56 AM
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P911
Freddy
BEE
