E85 Powered VR4?

[Import Power]

Originally Posted by Cool Name Here

$162.11 shipped ($7 for shipping) for E95; $2.95 a gal. does not seem too bad. Have you found cheaper?

High Performance Fuels and Additives

went to that site. I don't see how they are only charging $7 to ship a HAZMAT 55 gallon drum of Ethanol?!?!
Something don't seem right.

NM, I didn't go to the bottom of the page, it states shipping is extra and they call you with the shipping charge.

[vr4_rider]

GEMU...greddy e-manage ultimate...come on, Chris. You knew that:-p

[Damon]

I didn't get it either... here's to learning somethin'!

[91vr4n00maxima]

Originally Posted by Damon

I didn't get it either... here's to learning somethin'!

agreed. never heard that term

[IttyBitty9Bees]

I'll be switching to e85 here pretty shortly.

I absolutely agree with the 700 awhp on 16g's, not because all of a sudden the 16g's could flow more air, it's mainly because his setup plus the e85 can generate more torque with the air the 16g's can give. However, I am skeptical of the injectors used, I would think huge injectors would be needed to make that kind of power on e85.

Case in point, a local supra guy here was making around 620 whp @ 22 psi on c16 race fuel. He decided to make the jump to e85 since there's a pump local to him (and I). With no other changes to the engine, he switched to e85, and retuned his ems to account for a proper e85 afr, and ended up with over 650 whp @ 21.5 psi. He effectively gained almost 10% more power with less boost just from switching to e85. Now take full advantage of its anti-knock properties and raise the compression ratio, without even turning up the wick he could probably make another 20 or so whp just from the higher thermal efficiencies associated with higher compression ratios.....and during all this, not one hint of knock. e85 is almost a godsend.

All of these principles are applicable to twin 16g's, so now with a setup that, maxed out, might be barely pushing 630-640 awhp, can now come realistically close to pushing 700 awhp, without even touching the compression ratio.

Another note, performance-orientation aside. If one really wanted to see what e85 can do as far as gas mileage, I'm willing to bet a pretty penny that if you built a small displacement naturally aspirated engine that was built specifically to use e85, as in....super high compression ratio...to take full advantage of e85's anti-knock properties, you would probably actually end up on top of the game as far as fuel mileage (mpg) with e85 vs. pump gasoline. The efficiency boost of the sky high CR would more than offset the extra fuel generally need to produce x amount of torque. If this could be achieved, you would save money since e85 is usually about $1.00+ below the cheapest fuel on average, some places less, but some places are ALOT more cheaper. The one caveat is obviously that travelling with an e85 ONLY vehicle would be nearly impossible, not enough pumps.

[jay04]

are u talking about pure E85 or a mixture? Everybody is telling not to run pure E85; they tell me to run a mixture. Why?

[IttyBitty9Bees]

pure e85.......you may be hearing stories about the ethanol in e85 eating away at our stock rubber based fuel lines, which is not ENTIRELY untrue, it is exaggerated. The whole thing about fuel parts getting eatin away mainly stems from what happened when people tried running METHANOL.....which is also an alcohol, but many many many many times more corrosive than ethanol. Not only that but you also have 15% gasoline that acts as somewhat of a lubricant for the ethanol component of e85. In addition, fuel lines have had to account for the presence of ethanol all throughout the 90s up to today, since they had to make sure that e10 would be acceptably safe. e10 is not as potent as e85, but the ethanol is still there, and it was taken into account when they put our fuel lines and components in, so although e85 might eventually eat our stock lines away, it will take a long long long long time.

[jay04]

I was making sure because i want to create another map for E85 on the SAFC. I was thinking about taking my current map on pump gas and adding 10% more fuel. What do you think about that?

[IttyBitty9Bees]

add another 20% on top of that and u'll be straight...if doing so deson't max out ur current fuel system that is.

[jay04]

30% might be stretching it with 550cc and 13Ts