[lakefect]

Originally Posted by Hillard

I appreciate all the input. To be clear I'm not concerned with cost as much as pros/cons concerning the affects of the different fuels. This is a purpose built bracket car. It will not be licensed and driven on the street. I intend on purchasing fuel by the drum. The VP rep told me that methanol has the best cooling properties, makes the most power, and the car is more consistent. E-85 is a close 2nd and race gas behind that. Downsides of methanol being more oil changes, but is that all? Again, I appreciate the input. I've only ran race gas before. I've never run alcohol.

ok again ,there are no need to be changing your oil any more than on gas [as long as your tune up is correct]
are you looking at carb or injection?

[Hillard]

Originally Posted by lakefect

ok again ,there are no need to be changing your oil any more than on gas [as long as your tune up is correct]
are you looking at carb or injection?

Carb
and I will be running a vacuum pump.
I was just quoting what the VP guy said...and I've heard others say to change the oil a little more often.

[johnta1]

Usually the idling or slow driving causes too much alky in the oil.
Many use a system to drive up to the lanes and back on gasoline.
This will save alky also.
Probird uses a system like this on his car. (or did anyway)

[Hillard]

Originally Posted by johnta1

Usually the idling or slow driving causes too much alky in the oil.
Many use a system to drive up to the lanes and back on gasoline.
This will save alky also.
Probird uses a system like this on his car. (or did anyway)

That sounds very interesting. I'm curious how this 2nd system is setup and how one would switch back and forth. Even though it's a methanol carb it will drive around the pits just fine I assume??

I'm feeling kinda stupid right now, but like I said I've never ran alky before and have never even looked into what people are doing for fuel systems to run it.

[GTOGEORGE]

Originally Posted by Hillard

That sounds very interesting. I'm curious how this 2nd system is setup and how one would switch back and forth. Even though it's a methanol carb it will drive around the pits just fine I assume??

I'm feeling kinda stupid right now, but like I said I've never ran alky before and have never even looked into what people are doing for fuel systems to run it.

I'm pretty sure the gas doesn't go thru the carb, it would never work. I tried running gas through my carbs and it ran richer then heck, has to be delivered in another way.


GTO George

[johnta1]

Correct, most are a system where a separate little pump that pumps gas from a separate tank to spray into the top of the carb/throttle body.
The alky pump is usually off if electric pump.
The gas setup privides just enough to keep the engine running, so no jack rabbit starts etc.

[Hillard]

Originally Posted by johnta1

Correct, most are a system where a separate little pump that pumps gas from a separate tank to spray into the top of the carb/throttle body.
The alky pump is usually off if electric pump.
The gas setup privides just enough to keep the engine running, so no jack rabbit starts etc.

Got it. Makes sense.