took the p car for the rirst time in a couple of months, it was time to buy some gas $8,47 a gal in sac. last time it was $6.99 , cost me $90.00 tp fill up and a !/8 of a tank to get home, lucky i don't drive this baby every day. now i'm back to thinkin about meth

 

wow thats cheap. ms 109 is $10/gal here.

 

we are only getting 100 oct 76 at the pump in sacramento

 

How about E85? You can add about a 30% larger injector and call it a day. E85 is equal to 100 oct.

 

Steve,
We don't run our cars like the big boys; using anything better than pump is wasted of money IMO.

 

In Chicago area,,,6.99 110 leaded and 4.99 100 unleaded...

 

I was thinking like my996tt. For those of us sub 700hp, would running anything higher than 93 make that much of a difference? I am making about 530-550ish to the crank (haven't dynoed, just conservatively adding up the power numbers from my various mods), would running race fuel be that beneficial? I remember reading that the higher octane, the colder the spark needs to be or something like that, so presuming I'm on stock plugs/injectors, wouldn't my car just be wasting it?

 

Unless your ECU tune is set-up*for the higher octane, you won't benefit from it.

 

Here - $35-$45/gal MS109 ................... that's why I am considering either meth or E85

 

I pay $6.89 for Sunoco 260 pump 100 octane. I don't drive the car much so its worth it to me to have a little added insurance.

 

Holy crap

 

have lots of mods and a race file that demand 100 oct gas so thats the reason so race fuel not to mention the fun level is high

 

**** *****!

 

E85 = better than C16 for a fraction of the price. Just make sure your fuel system and ECU can handle it (lines, pumps, regulator, etc). I run the PRO EFI with full flex fuel on the Supra. E85 is $2.99 a gallon here in the Midwest and is very plentiful. Much less than the $13.00 a gallon that C16 cost and it won't foul out your plugs or wideband O2 sensors like leaded race fuel does after time.

Steve K.

 

I would run e85 for sure. The R+M octane rating is 104, but, because you need 40% more fuel to make the same power as gas, you cool the cylinder temp down and reduce hot spots that cause detonation. This allows you to advance the timing as if you had c16 in the tank. We are around $3.20 a gallon which is way cheaper than 100 octane. As 1a1 mentioned, you just need to make sure your compatible with e85 and you have enough pump to deliver the extra 40%. I would stay away from meth unless you are using a direct port system and not a fogger. This nice thing about e85 is that it is direct port thru the injector. No ancillary parts to fail at the wrong time. You don't have to continually check you meth tank to see the level, it's all done on the dash with the factory gauge.