Which octane

What octane race gas should you run on a 12.6:1 engine?

Knowing that you have to run _________ race gas for the 12.6:1 engine what would be the max CR for that fuel?

I was just thinking of alky. Only down fall is if I wanted to make a run to the local Sonic. Besides that I would be all for it.

jones wrote:I was just thinking of alky. Only down fall is if I wanted to make a run to the local Sonic. Besides that I would be all for it.

Get a large enough cell for the trip... you will be using it for fuel, not sippin it.

What is this leanout valve you have mentioned in a post or 2?

jones wrote:What octane race gas should you run on a 12.6:1 engine?

Knowing that you have to run _________ race gas for the 12.6:1 engine what would be the max CR for that fuel?

VP-110 or C12 is what I would use. If you decide to run the spray, I would probably use C16. As you can tell I am a VP Fuels user.
The VP-110 would be the cheapest but C12 is the most common fuel used in NHRA sportsman from what I have seen. I think the VP-110 is good to the 13:1 range and the C12 is good all the way to about 15:1. We were told by a couple of familiar nitrous gurus to run C16 with our nitrous program, which we did. Our motor was 14.5:1 and it sounded meaner with C16 over C12 but I never dynoed it after the switch.

richter69 wrote:I have driven both of my cars around town on meth, makes um cry when you pull through the Sonic. Have a big cell if you gotta go very far................leanmout valve of sorts help.


The kid with the 383 Chevy street truck is coming over this weekend, gonna throw my brothers old 800 alky carb on it and take it fore a spin.......................


Come to the darkside..................

I have 15gaL fuel cell that I could use to supply a secondary 5gal tank mounted up front. What is my options if i want look int alky? We have used a fly toilet before, but nothint this big!

whatbumper wrote:

jones wrote:What octane race gas should you run on a 12.6:1 engine?

Knowing that you have to run _________ race gas for the 12.6:1 engine what would be the max CR for that fuel?

VP-110 or C12 is what I would use. If you decide to run the spray, I would probably use C16. As you can tell I am a VP Fuels user.
The VP-110 would be the cheapest but C12 is the most common fuel used in NHRA sportsman from what I have seen. I think the VP-110 is good to the 13:1 range and the C12 is good all the way to about 15:1. We were told by a couple of familiar nitrous gurus to run C16 with our nitrous program, which we did. Our motor was 14.5:1 and it sounded meaner with C16 over C12 but I never dynoed it after the switch.

Could you give me an estimate about how much eash 50gal drum would cost?

i like vp fuels myself but dang they are proud of that stuff. a drum of c-12 is around 550 and c-16 is 700ish. i can get renegade 110 and 112 it think it is around 400 and 450 a drum.

Can get sunoco 110 in louisville for 300.00 a drum.

yea you can get that sunoco cheap but it's not really a good fuel in my opinion. most of the time when something is cheap their is a reason

Last year I paid 315.00 for renegade 112, I',m joining my hero Richter on the dark side this year.

What do ya'll pay for alky?