Finally. EB's E85 Dyno Results

[GMredline]

nvm. 2.75" Dam.

[ionredline2004]

ok im a lil confused on what to do with my set-up
mods are
2.6
dual pass
cobra heat exchanger
k&n intake
clear image header
catless downpipe
axel back
60s
option b

i have a meth kit in the trunk ready to be hooked up but i dont wanna ,ess with it if i can get more power out of e85 what should i do meth or e85

also if i go e85 can i run the set-up now or would i need bigger injectors sorry if im thread jacking really not tryin to

[GMredline]

Originally Posted by Darkmanx

wonder if theres any difference between the 2.75 and nates 2.7 pulley

Probably not.

Originally Posted by ionredline2004

also if i go e85 can i run the set-up now or would i need bigger injectors sorry if im thread jacking really not tryin to

Your going to need larger injectors to run E85. You will need to flow 30% more fuel and your 60s will not handle it.

[ionredline2004]

Ok thanks is it worth it switching to e85?
Cause I have meth for the car I just don't know what to do

[GMredline]

Originally Posted by ionredline2004

Ok thanks is it worth it switching to e85?
Cause I have meth for the car I just don't know what to do

I had a meth kit that I did not want to run. So you can figure out my opinion.

Running E85 is like running premium fuel with 90/10 mix of meth injection on a huge nozzle in your gas tank.

By me, E85 is $1.84/gallon compared to $2.78 for 93 octane.

I can run 25 degrees of timing on E85 and the stock TVS pulley. On premium I could only run 19 degrees. With meth I should have been able to run at least 21-22.

To gain hp with meth you have to run a strong mix of methanol to water. It has to be at least 75/25 or you are pretty much breaking even. What meth mixture do you plan on running?

When you run windshield washer fluid (or lower mixtures of meth/water) you actually loose hp from spraying water into your engine. You then gain it back from increasing timing or leaning out the afr. With washer fluid you loose hp overall.

Running E85 is also a lot more reliable then meth injection. What would happen to your engine if you run out of methanol while WOT? Your afr would go from 12 to over 14 very quick. That was a risk I did not want to take.

For me, finding 100% methanol was difficult and expensive. I would have to buy it for $5/g and then mix it myself. Well what if I got the mixture wrong? That would effect my afr.

Price wise it is cheaper to convert to E85. All you need are larger fuel injectors. No pump, no tank, no nozzles and no lines.

Although Meth injection and E85 do the same things to help create hp there is no comparison IMHO.

[sput]

Hope it's not too early for some more info..

TVS on stock pulley w/ 80lb injectors.. are you running ZZP's BRFS yet? Is it needed? What are your pulse widths/IDC's at?

Thanks for all the info! It's much appreciated! I'm putting together a similar setup in the future.

[GMredline]

Originally Posted by sput

Hope it's not too early for some more info..

Its never too late.

Originally Posted by sput

TVS on stock pulley w/ 80lb injectors.. are you running ZZP's BRFS yet? Is it needed? What are your pulse widths/IDC's at?

I hit 100% last night after taking my new cat-back for a spin.

It seems that on RLFs we always play it safe by trying to stay within the 80-90% idc range. But from what I have learned from other forums and local tuners is that don't worry about IDCs until the injectors run out of fuel. Meaning they can not supply the amount of fuel commanded from the tune.

Right now, I have no problem getting my commanded AFR. That could change with a smaller pulley. We will see.

[ionredline2004]

Originally Posted by GMredline

I had a meth kit that I did not want to run. So you can figure out my opinion.

Running E85 is like running premium fuel with 90/10 mix of meth injection on a huge nozzle in your gas tank.

By me, E85 is $1.84/gallon compared to $2.78 for 93 octane.

I can run 25 degrees of timing on E85 and the stock TVS pulley. On premium I could only run 19 degrees. With meth I should have been able to run at least 21-22.

To gain hp with meth you have to run a strong mix of methanol to water. It has to be at least 75/25 or you are pretty much breaking even. What meth mixture do you plan on running?

When you run windshield washer fluid (or lower mixtures of meth/water) you actually loose hp from spraying water into your engine. You then gain it back from increasing timing or leaning out the afr. With washer fluid you loose hp overall.

Running E85 is also a lot more reliable then meth injection. What would happen to your engine if you run out of methanol while WOT? Your afr would go from 12 to over 14 very quick. That was a risk I did not want to take.

For me, finding 100% methanol was difficult and expensive. I would have to buy it for $5/g and then mix it myself. Well what if I got the mixture wrong? That would effect my afr.

Price wise it is cheaper to convert to E85. All you need are larger fuel injectors. No pump, no tank, no nozzles and no lines.

Although Meth injection and E85 do the same things to help create hp there is no comparison IMHO.

as of right now i have a 5 gallon drum of a 100%meth. but idk if im going to be able ot afford the meth like u said and what if the pump goes BOOM. lol thats scary and i think im going to change to e85 lol

also when we scaned my car we have the commanded afr at 11.7 and im getting a 10.7 through the exhaust. u think i could put some e85 in the tank and ricken the car back up? cause when wickedss tuned my car the afr that i was seeing on my wideband was a 9.6!!!!! note that he didnt tune it with a wideband at the time. anyways i can add fuel so i was thnkin about just putting e85 in the tank and watching the wideband and see what it does?
all else fails i can drain the e85 and put 93 back in. i work for a dealership so thats not to hard to do lol

[GMredline]

Originally Posted by ionredline2004

as of right now i have a 5 gallon drum of a 100%meth. but idk if im going to be able ot afford the meth like u said and what if the pump goes BOOM. lol thats scary and i think im going to change to e85 lol

To understand the risk of Meth injection you need to understand how reliability is calculated. Look at all the components of a system and their individual reliability ratings. (Estimates for examples)

Pump - 98%
Tank - 99.9%
hose - 99.9%
nozzle - 98%
fitting - 97%
fitting - 97%
fitting - 97%
fitting - 97%
consistent meth/water mixture - 95%
etc.

Now multiply all those percentages together to determine the reliabilty of the entire system.

(.98)*(.999)*(.999)*(.98)*(.97)*(.97)*(.97)*(.97)* (.95) = 80.6% overall reliability of the entire system. (Estimated for example)

E85 goes directly into your gas tank. Just like regular gasoline. Its hard to mess up!

Originally Posted by ionredline2004

also when we scaned my car we have the commanded afr at 11.7 and im getting a 10.7 through the exhaust. u think i could put some e85 in the tank and ricken the car back up? cause when wickedss tuned my car the afr that i was seeing on my wideband was a 9.6!!!!! note that he didnt tune it with a wideband at the time

Are you running Mething injection right now? If so the easiest way would be to run a lighter mixture of meth to water.

I know a lot of people mix gasoline and E85 but I have not tried it myself. And if you got it right to fix your AFR problem you would need to make sure to use that correct mixture of gas/E85 every time you filled up. That seems like a big hassle to me.

Originally Posted by ionredline2004

anyways i can add fuel so i was thnkin about just putting e85 in the tank and watching the wideband and see what it does?
all else fails i can drain the e85 and put 93 back in. i work for a dealership so thats not to hard to do lol

If you have access to a wideband I would suggest fixing the tune with your fuel of choice.

[SLOWSSTURBO]

Have you brought it back to the dyno yet with the tvs?