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Alright so my setup is a fmic, Walbro 255, Evo III 16g turbo. Now the question is I want to convert to E-85 BUT also be able to run 93 octane incase Im in a town with no E-85. So I will have to buy 1000cc injectors to run the E85 I know but how would I be able to run 93 sometimes too? Is it possible and if so how?
What do you have to tune the car with? You could just do 2 different maps. That is how most do it.
^^^This is true.
OP, you don't necessarily need 1000cc injectors but it's up to you. It also depends on you final setup. I'd keep searching and reading, here are a few good E85 links. I'd also check on tuners, I seem to remember reading a bunch of decent stuff on there too. Be leery of some of the older threads, running e85 is easier than a lot of people make it out to be.
I have a Keydiver dual image chip, for e85 and pump91. It's the best thing since sliced bread lol. Works great and got me into the mid 12's this year in a full weight 2g running an Evo316g. Here's a link to my setup.
If you have the cash I would say go with DSMLink the new version 3.0 is out, I played with the software a bit. I am a 2.0 user currently but I am going to upgrade to 3.0.
3.0 Really pretty much in my mind it takes away the allure of a stand alone since you now have direct access to the ECU's settings. As well as all the classic features Link offers. So it allows you to have multiple fuel/timing etc. maps for E-85 / 93oct / 91 oct etc. at the press of a button you could go from one to another. As well as tune the car for optimal performance with each fuel.
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Quote:
Originally Posted by WildWes11
I'm not going to fight any more because you have a DSM
Yes, my mileage on e85 is 18-20mpg on road trips, less in town. On pump91, I'm getting low 20's in town, and up to 30 on the highway.
Thus, possibly may I ask: What is the advantage, or should say reasoning to run E-85 when it takes more fuel to go the same mile, thus the cheaper price of using E85 would almost balance out when paying basically the same prince for regular 91 pump gas which gets you better gas mileage?
Thus, possibly may I ask: What is the advantage, or should say reasoning to run E-85 when it takes more fuel to go the same mile, thus the cheaper price of using E85 would almost balance out when paying basically the same prince for regular 91 pump gas which gets you better gas mileage?
thx-Op.712
On 91, I could not run 35psi or the soon to be 40psi on the street constantly, with E-85 I can because of its higher octane. No need changing maps. No need in changing fuels, draining the 91 before I race at the track and draining the E-85 before I drive home. I dont need to store 2 different fuels. Instead, I can use my extra fuel containers for extra E-85 since the nearest place that carries it is 25 miles away from me. I fill up my car, fill up my containers and I am good for a while. I usually fill up on the way back from the track anyways but I always have 10 extra gallons sitting at home when needed.
From wiki
Depending on composition and source, E85 has an octane rating of 100 - 105[4] compared to regular gasoline's typical rating of 85 - 93. This allows it to be used in higher compression engines which tend to produce more power per unit of displacement than their gasoline counterparts. Since the reciprocating mass of the engine increases in proportion to the displacement of the engine E85 has a higher potential efficiency for an engine of equal power.
One complication is that use of gasoline in an engine with a high enough compression ratio to use E85 efficiently would likely result in catastrophic failure due to engine detonation, as the octane rating of gasoline is not high enough to withstand the greater compression ratios in use in an engine specifically designed to run on E85. Use of E85 in an engine designed specifically for gasoline would result in a loss of the potential efficiency that it is possible to gain with this fuel. Using E85 in a gasoline engine has the drawback of achieving lower fuel economy as more fuel is needed per unit air (stoichiometric fuel ratio) to run the engine in comparison with gasoline. E85 also has a lower heating value (units of energy per unit mass) than gasoline leading to a reduction in power output in a gasoline engine.
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97 GSX: Built 7-Bolt | 1g race head | Evo 3 mani / stock o2 | 3" GM MAF | 1g TB | JMFab SMIM | FIC 950cc | 255 Rewired | HKS 272 | Fidanza cam gears | BW 57 Trim | DSMLINK V3 | Fluidampr pully | 3" N1 | AEM WB | QM Twin Disk | DSS Drive Shaft | Eibach pro's | Nitto Invo's | 11.85 @ 130.18 on E-85 - 3582r Rule #7 Impoorved Spelings! - With high HP comes great Responsibility (Take it to the track!) If you want 300-400hp read this first
So although you have to use a bit more. It's like lower octane race fuel, add in meth injection and it's basically like your running around with race fuel in your tank (although your not)
__________________
Quote:
Originally Posted by WildWes11
I'm not going to fight any more because you have a DSM
On pump 91 gas I was only able to run 18psi on the stock 1g timing map (22* max) out of my 16g with a little knock.
On e85 I spike too 30psi holding 24 too redline and 24* max timing with just an safc/maf-t to tune my 1200cc injectors. I am buying dsmlink as we speak so cant wait till I have that. Next will be a hx35 and 35psi with an aggressive timing map on a stock longblock.
To the OP it all depends on what you are going too tune with. Like these guys say ecmlink is a very nice setup and they now do an eprom conversion for 1g's so you dont need to find an eprom.
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