So will the modified higher flowing Walbro fuel pump be good enough, or will I need a double pumper set up? Thanks.

 

First let me answer the question what injectors and pump do you need for 450 whp on our dyno. A standard Walbo on E85 is going to marginal at that power level. The injectors if you intend to keep them at 80% duty cycle will probably need to be 1,000's.

**Same answer as I gave last time. The pump you have will be marginal. Best bet is probably the double pumper because of the volume you will need to push but at relatively low boost with the LT.

 

Glad you kept pushing Keith and congratulations to both you and David! I guess I should have pushed a little harder Might have to show up at his house at the end of the driveway picketing a sign that says tune me on E85

There are 33 stations that carry E85 within 100 miles of where I live!

:EDIT: David likes guns...scratch the picketing idea, lol

 

would you be able to do a package sort of thing, like all the parts/install/tune (aem) for this? how much and how long woutl it take?

 

More info on winter blends...

E85 is defined as a blend of 85% ethanol and 15% gasoline. However; many times of the year, the fuel termed as “E85” is actually a blend of fuel that contains less than 85% ethanol. For many cold temperature months of the year, a 70% ethanol blend is used at retail fueling facilities.

An E70 blend (70% ethanol, 30% gasoline) is used to ensure proper fuel volatility and vehicle starting/operations in cold temperatures. Gasoline and diesel blends change with the seasons in the same way. "Carrying" summer fuel into fall temperatures could result in problems in many FFVs.

If a retailer must order a new load of product, he must ensure the E70 specification is met for winter months. If a retailer has an inventory of E85 in his tank when winter arrives, it is best that he "blends it down" with gasoline at the time of a next gasoline delivery to reach the desired 70% alcohol-blend.

In spring, as the weather warms, the blend change is not as critical. FFVs can operate on any blend during warmer months.

E85 fuel must meet winter time seasonal blend percentages required by ASTM 5798 or retailers risk having their E85 dispensers “red tagged” and shut down by the state weights and measures inspector.

 

thats some great work dave. I have always wanted to do this since i first heard about e85 but still waiting on them to bring it in my area. Once they do youll be seeing me again. Well youll be seeing me again regardless. lol

 

DB for prez

 

I'm waiting until I get some concrete data on when E85 becomes available in my area before I commit, but the double-pump method is the direction I'll be going, with my 35r and 1000cc injectors, I can be certain I'll be out of fuel at the power levels you can attain on E85. Because my Evo is now a weekend warrior, I can live with the 18 or so MPG as its still better than what my Malibu gets. LOL

 

Yup, next chunk of money I get will go for high lift cams, rods and pistons, and some 1600cc injectors.

Keith

 

haha Trevor, I like guns more everyday. I finally got my concealed carry permit a few months ago. So now I have a renewed interest;0

 

How about a stage setup dave? can u or big Al create a through the mail flash for E85? that would be awsome!

 

E85 is really fun stuff. I'm using it on my senior project...turbo 250rr. I've been testing with and without IC and with my results really wish I had a pump that was closer than 3 hours away.
I have a grad project (wanted to do for my undergrad senior project but school didn't have the technology in labs to do it ) that I really want to test but will probably do on a customer's direct injection mazdaspeed 6 while beta testing the new hydra ems. It is based off of an MIT senior project using a gas/ethanol fuel system that changes that changes the fuel (gas to ethanol) level based on knock...the paper claimed a research octane of 135 from pump e85!!!

I'm curious how long the in-tank walbro will live...my inline pump is still hanging in there. I did choos a methanol/ethanol friendly FPR as I definately don't want that leaking.

 

First I want to thank David for all his professional input on E85. I just read on a website that E85 has 113 octane rating and it's also going to be used by IRL beginning with this season. I've been wanting to try and run on E85 for a while now, this thred has definatelly help me make a decission.

 

e85 is only 105 average (motor and pump) and 113 research octane...
it actually fluctuates a bit too.

 

It depends a lot on the mix they use at your local station. My local station has the minimum octane labled at 100. I suspect their mix is 15% 87 octane and 85% ethanol. Other stations list 105 as the minimum octane, and I suspect that their blend is 15% 93 octane, 85% ethanol.

Keith