Pump gas?

[Wolf]

First time DWer here. I've got a bit of compression in my junk, and while it hasn't been a problem for me, since I have a local source of 94 octane at the pump, I'm wondering what octane availability I should expect in the general area of the DW route? I can live on 93, but if I'm limited to 91, I'll need to swap heads or add water injection.

[BBR]

Unfortunately, I think 91 is probably going to be the norm, but all the tracks should have race gas available.

[trayack]

Really?....no 93? I didn't even think of that.

[ytnova]

I was wondering about the E10 vs. straight gas myself. I know last year I had to fill up more than once when the best available fuel was 89 octane, but at least it was straight fuel. Last year I just spiked my tank every morning with some race gas, seemed to work ok.

[BBR]

When I was in Noble last Oct, I looked high and low for 93 but could not find any. We even drove well out of our way to a station that supposedly had it. No dice. Locals may know of some, but I came up with nothing. No-ethanol gasoline is available if that's what you prefer to run.

91 works for me though. 11.6:1, 185psi cranking at 3600' MSL.

[tsanchez]

Yeah I just used 87 swill to drive with, 12.4-1 compression. Cam bleeds off a lot so its fine cruising. If you dont have the option to drain and use better fuel you can add a small tank and use it for track use.

[Wolf]

91 works for me though. 11.6:1, 185psi cranking at 3600' MSL.

I'm at 220 psi cranking (750'), and while I can drive like an old man on 91 and not have detonation, the engine won't shut off with that stuff!

[tsanchez]

Shut it off in gear lol

[phendrickson58]

There is only one gas station I know of within 30 miles of me with straight gasoline. And I've yet to find one in KS with anything over 91 outside the track or a speed shop. You have to go to Missouri for that. There are a few with e85, however...but not a lot.

[BlueCuda340]

Tulsa is all 91 for the highest. There is several places around that have no ethanol but fewer that have it for the premium grade. There is E85 available at a few places around town. The "Kum and Go"(yep thats the name) chain has built several new stores and it seems they all have E85. There is a store within a few miles of the track called Batman's that I believe has premium with no ethanol. I'll check and post back up its just 1/2 mile from my work.

My car is 11:1 with 180 Cranking and its fine on 91 and doesn't respond any better to 93. I run 35* of timing locked out as well.

[nesabo]

I remember leaving Tulsa in 12 on the first Day, the nearest gas station ran out of gas..

[BlueCuda340]

That place is a craphole, there is 3 more gas stations just 1/2 mile further from that one.

We will probably go north this year from the track though, lots of stations in owasso.

[moter]

Our gas is pretty crappy here in the Austin area. Best you can get is 91. with 10% ethanol. My little motor is boosted .... so i added a methanol injection system from Alky control.

[HBZ_81_C3]

I remember leaving Tulsa in 12 on the first Day, the nearest gas station ran out of gas..

We cleaned them out!!!

[AdvAutoBob]

I thought about pump gas quality/availability last year when putting mine together. The solution? I added a timing retard for pump gas detonation prevention - flip a switch and pull 6 degrees off (had to use the third retard module for something!)