purpleh22

I'm currently running 120 race gas (113 octane & a couple of $ per gal. cheaper than 116) Methanol would cost less than 1/2 as much as the 113 octane. What power difference would I be likely to see? Would injectors corrode? Would I need bigger fuel lines & pumps? What should AFR be with methanol? Injector size need to be increased? Any other components that would need to be upgraded? Even if I use twice the volume of methanol over 113 octane, it would cost less for fuel.

Built H22 w 10:1 Arias, S300, walbro 255 and another inline pump, 700cc inj., GT 30R, 3" dp & tailpipe, etc.
92 hatch @ 2350lbs, 429 whp@17 psi. (Mustang dyno)

b16hybridsol

i believe stoich with meth is 7:1 maybe (i know its close to that) so therefore right off the bat you are going to need double the volume of fuel. You will see some good gains from switching over

purpleh22

So if Iwas going to run 17-18 psi boost I would need 1600cc injectors? Anything else that I should change or attend to - fuel lines etc.?

96 GSR-T

I think WOT values are basically double, if you ran a 12.0 with gas its 6.0 on meth. Best to change to a completely different or secondary fuel setup, pump, lines, injectors, rail all meth compatible.

NJIN BUILDR

Methanol is very hard on pumps and lines.You will need to purge the system after every event.It's also hell on oil.
The good thing is it cools the engine very well.You can reduce your intercooler set up substantially.
Look into Ethanol.It makes a little less hp/# but is a lot less corrosive.There has been a bit of discussion of Ethanol/Methanol on the Drag Race forum.

purpleh22

Great comments/advice thanks!

jameelrose

if methanol is 1/2 the price

and you need double the amount...

doesnt it work out to be the same?

purpleh22

Supposed to be more power with alcohol. It wouldn't be as readily affected by oil price fluctuations and less chance of detonation - runs cooler.
Made a mistake, Methanol is about 1/4 the price of 120 (113 octane)


Modified by purpleh22 at 10:01 PM 7/10/2006

wantboost

iTrader: (2)

yea, a 55 gallon barrel of meth is about 120 bucks locally, including the barrel. ill be running it in my built si if all goes to plan

earl

Just remember that methanol eats raw aluminum over a short period of time. We hard annodize internally any part that is exposed to meth. Meth also will eat up your injector o-rings, etc.
You would not have that problem if you ran ethanol rather than methanol.

DaveF

we have been on alcohol for over a year on the same pump, lines, fpr, injectors, filter, & rails. we run a -12 from the cell to the cut off valve, to the filter, then to the pump, from the pump to the rails its a -6 line( 2 rails, 2 lines), a -6 return from rail to the fpr, to a -6 back to the cell. we make 800hp non intercooled.

wantboost

iTrader: (2)

looks like ill be hard coating everything, from fuel tank to fittings. we send out bulk parts to be hard coated, so its easy to sneak a few in.

also, maybe ill try to machine an o-ringless injector

b16hybridsol

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wantboost &raquo;</TD></TR><TR><TD CLASS="quote">looks like ill be hard coating everything, from fuel tank to fittings. we send out bulk parts to be hard coated, so its easy to sneak a few in.

also, maybe ill try to machine an o-ringless injector </TD></TR></TABLE>

-an style just make sure you count the rotations of the tap and dye so the plug all end up on the same side

wantboost

iTrader: (2)

hehe, i can do pretty much anything with a 5 axis mill. a 4 axis mill, 2 5 axis lathes and one 3 axis lathe