E85 with 100% meth or 50/50 meth/water?

[KevOVIII]

Sorry to double post in a different forum but I would like to get some input from you guys since not everyone in here visits the Alternative Fuel forum.

Here's a direct link:
E85 with 100% meth or 50/50 meth/water?

Here's my question:

Not sure which forum this question should be in so I'll start here first. Has anyone run E85 as their primary fuel and added meth injection on top of it? I recently switched to E85 but still have the meth kit on the car.

I did some research and it seems like water-contaminated E85 forms formic acid during low temperature partial combustion. Formic acid causes rapid engine wear (http://en.wikipedia.org/wiki/E85_in_standard_engines). I assume this doesn't hold true during a WOT pull and 50/50 water mixing with E85 is okay?

It looks like the guys at English Racing has some experience with E85/meth (http://www.englishracing.net/media/r...lishracing-evo) but I would appreciate input from anyone doing E85 & 50/50 meth/water or E85 & 100% meth.

[JohnBradley]

E85 + 100% meth

Here is why:

Another 10 sec 16G

[Casper.]

no need for meth when running e85.....just ask anyone from awd motorsports lol

[KevOVIII]

Originally Posted by JohnBradley

E85 + 100% meth

Here is why:

Another 10 sec 16G

What was the power/torque difference when the injection was on/off? How much more timing/boost were you able to run with meth? I'd like to have Bryan try E85 and meth, but I need to do some research first to see if the gains are enough to risk the possible pump failure. Thanks!

[JohnBradley]

You need to use a pump capable of running 100% meth. It has to have methanol resistant seals and diaphragm to prevent failure. The car without meth and straight E would run 115 almost 116 so the meth was worth an easy 80-90whp. Now of course thats an extreme example since it doesnt have any other intercooler, but on Pauls Evo when it was on E85 and a 37R was able to make about 50whp with E85 and meth than straight E85.

[KevOVIII]

Yes, I have a pump that can handle 100% meth. Ever try or think about trying 50/50? Do you know if that combination will form formic acid?

Thanks again for your help.

[4drboost]

Very interesting...........I was thinking of switching to E85 and getting rid of my HSF5 but after this I'll use both.

[KevOVIII]

Forgot to ask something. With Paul's car, how much meth were you guys injecting while running the 1600cc injectors?

I currently have FIC 1450's with an M10 nozzle in place. I do have an M15 nozzle but not installed.