im building a 360 30over with kb pistions nice purple cam and installing it in 66 dart and I was was wondering if I could run e85. could i use my carb just rejet? what abou timming. I heard from a friend that u can run better time with e85 I just dont know how to set it up.or would be a bad idea.
pros and cons of e85
- Thread starter dickyeb
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ateam
A motor can
I suggest checking-out, "E85 Performance" webbsite. Lot's of savy folks there. If your only going to run 9 or 10/1 comp., E85 will not be effective.You will need approx 30% more E85, to equal gas,(less calorific value). It has approx 105 octane comparison. This is why you want lots of compression to boost power and efficiency. Many carburetors will need more than just re-jetting to get adequate flow.Good Luck, ateam.:cheers:
you need to increase the volumn of your fuel system by 30% ...pump and fuel line needs to be up to that task..
more compression will help...but there are alot of FlexFuel cars burning e85 with 9 to 1 compression...
Quick Fuel Technology make a kit with new metering blocks for holley carbs.....also..the squirter size needs to be adjusted....also the need and seats need to get changed from Viton to Stainless Steel.....All in all the carb mods will set you back almost 200 bucks if you do it yourself..
Your gas mileage will suffer with E85...
E85 biggest plus is a racing fuel that is cheap...
as noted google e85
more compression will help...but there are alot of FlexFuel cars burning e85 with 9 to 1 compression...
Quick Fuel Technology make a kit with new metering blocks for holley carbs.....also..the squirter size needs to be adjusted....also the need and seats need to get changed from Viton to Stainless Steel.....All in all the carb mods will set you back almost 200 bucks if you do it yourself..
Your gas mileage will suffer with E85...
E85 biggest plus is a racing fuel that is cheap...
as noted google e85
project360
Well-Known Member
it takes a little carb work for E-85, and i recommend someone that knows E-85 carbs too, but there are kits available, im also still looking at going this route, however ive heard of some bad stuff about it, besides the cost of setting up for E-85, a stock fuel system will have to be upgraded, along with the carb and i heard this weekend from a fellow mopar on E-85 that he keeps getting water contaminating his fuel after sitting for a couple weeks, and 3 of the 4 mopars i no on e85 are back to AV gas.....Im using this guy for my carb, however im buying a proform billett vs. a rebuild.
http://www.e85carbs.com/
ive had many conversations with him and hes pretty cool and willing to help with what ever, he answered every single question i could throw at him as well.
to think about, the bad..
revamp fuel system and carb..... a little costly
using 30% more fuel for the same affect as race gas, mileage loss and fuel cost goes up even though its cheaper than pump gas 91 oct. only by 20 cents per gallon on average.
E-85 does not have alot of lubrication properties, as a recently torn down 360 on E-85 for two years shows aggressive wear on main and rod bearings due to oil contamination with the E-85.... this bothers me! however a stong oil change schedule will help fix this problem, the owner of this particular car was still running 3 weekend races with out an oil change, which showed in the tear down.
the good.
burns cooler, and the added fuel in the air mixture cools the air/fuel charge as it enters the combustion chamber... you can run lots of compression and its still cool....all of these are a plus..... guys that use it correctly make real good power.
i really started looking at this when my block went .060 over and i was worried about the heat with the increased preassure.
Im still torn, and am looking at alternatives to start with and if heat is an issue then i will convert to E im thinking.
http://www.e85carbs.com/
ive had many conversations with him and hes pretty cool and willing to help with what ever, he answered every single question i could throw at him as well.
to think about, the bad..
revamp fuel system and carb..... a little costly
using 30% more fuel for the same affect as race gas, mileage loss and fuel cost goes up even though its cheaper than pump gas 91 oct. only by 20 cents per gallon on average.
E-85 does not have alot of lubrication properties, as a recently torn down 360 on E-85 for two years shows aggressive wear on main and rod bearings due to oil contamination with the E-85.... this bothers me! however a stong oil change schedule will help fix this problem, the owner of this particular car was still running 3 weekend races with out an oil change, which showed in the tear down.
the good.
burns cooler, and the added fuel in the air mixture cools the air/fuel charge as it enters the combustion chamber... you can run lots of compression and its still cool....all of these are a plus..... guys that use it correctly make real good power.
i really started looking at this when my block went .060 over and i was worried about the heat with the increased preassure.
Im still torn, and am looking at alternatives to start with and if heat is an issue then i will convert to E im thinking.
project360
Well-Known Member
lol, 3 of us answered at the same time.....
great for a race car, not so much for a daily driver IMO.
great for a race car, not so much for a daily driver IMO.
darndart
Well-Known Member
We swapped my step son's bracket racer over to E85 a couple summers ago. We didn't really see any major gains in performance, but the car runs way cooler, and the cost is way cheaper than race fuel. A couple down falls we noticed are: 30% more fuel usage, have to change oil evey few races(fuel in oil), smells horrible when burnt!, engine starts hard when cold(first start of the day only), and recently they stopped selling E85 in our area!
We sent our carb to Pro Systems for the conversion, added a bigger fuel pump, and backed the timing off about 4 degrees! The car runs very consistant, and usually have to turn off the electric fan & water pump during warm up, just to get the temp to 160/170 range!
We sent our carb to Pro Systems for the conversion, added a bigger fuel pump, and backed the timing off about 4 degrees! The car runs very consistant, and usually have to turn off the electric fan & water pump during warm up, just to get the temp to 160/170 range!
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