max compression on E85 only?
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From: Cooper City, FL
max compression on E85 only? I did do a search, and have read all of Runn's threads on E85...VERY informative.
However no one seems to have any clear idea on what kind of SCR/DCR you can run for a purposely built E85 engine.
I planned on running 93 and was going with 12:1 and 8.6:1 respectively....and then a 2 stage fogger on race gas.
NOW I want to run E85 can I bump the compression up to 13:1? 14:1? what about DCR? 9.5:1? we only get E85 summer blend down here so I'm not going to have to deal with swapping fuels
however I still may want to run some C16 for the larger spray runs...not sure on that yet.
this is a nitrous built 408, TFS 235's custom cam, callies rotating assembly, custom diamond nitrous pistons, topped w/ a vic jr. it WILL be street driven regularly, just looking to make the most power on E85.
plan on running 83lb high impedence Siemens...which would make them something like 94's in a 4bar fuel setup correct? I would think this would be MORE than enough injector.
or the bosch's they are 83lb @ 4 bar....
Chad
However no one seems to have any clear idea on what kind of SCR/DCR you can run for a purposely built E85 engine.
I planned on running 93 and was going with 12:1 and 8.6:1 respectively....and then a 2 stage fogger on race gas.
NOW I want to run E85 can I bump the compression up to 13:1? 14:1? what about DCR? 9.5:1? we only get E85 summer blend down here so I'm not going to have to deal with swapping fuels
however I still may want to run some C16 for the larger spray runs...not sure on that yet.this is a nitrous built 408, TFS 235's custom cam, callies rotating assembly, custom diamond nitrous pistons, topped w/ a vic jr. it WILL be street driven regularly, just looking to make the most power on E85.
plan on running 83lb high impedence Siemens...which would make them something like 94's in a 4bar fuel setup correct? I would think this would be MORE than enough injector.
or the bosch's they are 83lb @ 4 bar....
Chad
Last edited by Nimitz87; Sep 4, 2009 at 01:37 PM.
ive read through that sticky a couple of times, but im still by no means an expert. you might be able to get away with running 14:1, but that is a ton, E85 or not, but that doesnt mean its out of the range of possiblity. the nitrous and you big heads/cam will love it though, so id say 13:1 no problem. not alot of people running E85 cars so you might be one of the first (on here at least) to have a purpose built E85 motor from the beginning. all i can say is, good luck, and i hope you have a lot of injector 
i know 12:1 with iron heads so id say 13:1 with your aluminum, but if you are going to be swapping out to c16 and such you better be able to tune it because you need alot more of the e85 than c16 and your timing will have to be adjusted according, +1 on the big injectors also
Thread Starter
12 Second Club
iTrader: (17)
Joined: Dec 2004
Posts: 1,449
Likes: 0
From: Cooper City, FL
ive read through that sticky a couple of times, but im still by no means an expert. you might be able to get away with running 14:1, but that is a ton, E85 or not, but that doesnt mean its out of the range of possiblity. the nitrous and you big heads/cam will love it though, so id say 13:1 no problem. not alot of people running E85 cars so you might be one of the first (on here at least) to have a purpose built E85 motor from the beginning. all i can say is, good luck, and i hope you have a lot of injector
basically a "max effort" street car, oxymoron I know
, wanting to make at least 600wheel on motor, anymore would be great.i know 12:1 with iron heads so id say 13:1 with your aluminum, but if you are going to be swapping out to c16 and such you better be able to tune it because you need alot more of the e85 than c16 and your timing will have to be adjusted according, +1 on the big injectors also
will those 83's be enough?
Chad
Last edited by Nimitz87; Sep 4, 2009 at 01:47 PM.
