what all do i have to do to run E85 ?

What Fuel pump are you E85 guys running and can you give me a link please?

what injector size would i need and what brand is optimum ?

also any other changes to the fuel system besides pump/injectors that need to be made?...



THEN the pistons and rods question....who makes the lightest forged pistons/rods?

also are the ls7 titanium rods the lightest?

is it going to be a PITA to balance lightweight **** with a stock crank ?


Just figureing out what direction i want to go with the car thanks guys!

 

you really need to post more info on what combination you have, I run with guys that have been running years with the stock lines and upgraded pumps and injectors and no problem. I have been running it for a year now and love it. I have a close friend that does my tuning and he periodically checks the fuel for the percent of ethanol in it for us.. I would say go for it but make sure you do your homework...

 

well if i did do it, i wouldnt run it without a top of the line wideband a/f guage jsut to make sure it was always safe...and i hear you have to get the tune adjusted for winter/summer blends of E85...what pump should i get and injectors...if i do it ill probably have a high compression setup with big cam

 

Really hard to answer your question with out knowing what you power/ET goals are.

Stock cube? big cubes? any power adder?

I would think on a stock cube motor with heads/ and cam I think 42lb injectors and a single walboro with hot wire kit would be ok on E85

As fars as the rotating assembly goes it depends on the power level you are going for. I can't see it being worth the money for the LS7 rods for just a 347

 

it will be a 347, no power adder but i want it to be capeable of a wet shot...so what fuel pump will i need for all that E85 ? and 42lb injectors should do it ? thanks...

 

I am running twin walbro pumps with an adjustable regulator, I would recommend going for 60# injectors but that is just me. I am set up to spray a wet 175 shot, and have had no issues...
I still say please do your homework on exactly what combination you are going to run and do a search on E85 there are several good articles both on here and the web in general, I am very lucky that I have IMHO one of the best E85 tuners in the country as a close friend so that took a lot of the guess work away...

 

Ls7 rods are good as paperweights, thats about it.

 

As much as this maybe a drag racing post as you plan to drag race it. I think this falls more under Engine Specific and if you have not, I would suggest posting over there as well once you decide what block you want to use.

 

yeah i have posted elseware with no luck...it seems like alot of the knolegeable guys hangout in the DR section so i just post here lol

 

Wide band is a must. And testing fuel is a must if you get it fromthe pump. The fuel moves from E85 to E78 and maybe even E65. there are tester's you just add fuel and water shake it up and boom you have what it is. I never really had to just mytune at all and ran E85 all summer and fall. the key it to test it. as for the pump twin 340's will work great. i only say twins if your not using a stand alone for the wet side of the kit. but if you have a stand alone then one 340 pump with a hot wire kit and 60 to 80 lbs injectors once again thats is based on how you plan to fuel the motor on the jug. with 60 lbs injectors and 65psi i am at 81% cycle. And cam isa big key with E85 and try to get as close to 13.1 as you can it loves the compression.

Rob
Setup will need a 60 lbs at min with a good pump and power going to the pump. but as everyone said need waymore info on the setup power goal and so on.

check my first comment.

Good tune and fuel testing is key. I run the stuff and love what its done for mysetup. but dont cheap out on anything as far as the fuel system.

 

1. i wont be spraying anytime soon, this is all hypothetical...i would probably have very high compression...maybe around 13.1 if i did do this...can you give me a link to the 340 fuel pump/hot wire kit ?

2. I will just change the fuel pump setup if i ever decide to spray, or just buy a stand alone..anyway ill cross that bridge later the car will be n/a for awhile....

3. Also i mean since the car will still be a 347 should i just stick with 60lb injectors, or will the 42 work ?

4. also what A/F ratio do you run with E85 ? and if the blend DOES change do i just have to put it on the dyno and touch it up ?

5. Also...WHO specs cams for E85 and what would change from a 93 oc. cam ?

Thanks for all the help

 

Aeromotive 340 intake pump they just came out. and as for the 42lbs injectors they wont cut it. you will need 60 lbs atleast. thats what i am running and i am still 346 SBE and 243 heads with 12.2.1 compession so 60 lbs for sure. and dont really go by a/f/r to much with E85. mine likes it leaner then most it made peak tq and hp with a little less fuel then most. but on my aem wide band i am seeing 12.3 to 12.6 on the track pass. i would not run anything less then E85 with 13.1 compression by the way. and with E85 seeing how its also able to cool i would run a cam with more drc and make sure you run non projected tip plugs and clean up all sharp edges on the heads and pistons e85 is kind touchy to that stuff. i say talk to geoff at eps he helped with mine and its is strong.

 

what woud be the best compressino for E85 ?

 

13.1 nothing really over that.