TheHater

To buy 100 Ocatane all the time instead of 91. Its 550 a gallon here in SOCAL and So its gonna be around 60-65 Bucks for my tank. Will i be able to run higher PSI with less worries?

ITR981002

Ouch! Its only $3.50 per gallon here in IL
To the best of my knowledge running higher octane fuel has basicly the same benefit as retarding your timing to get rid of detonation.

Does anyone have a rule of thumb when it comes to octane and boost. Say 3 octane points higher for each addition PSI or something general like that?

tegasaurus

octane is the resitance to detonate.

higher the octane, the more controlled the explosion is; thus, you will be less prone to detonate.

It is a good idea to run high octane gas, but it's not worth 65 bucks to fill your tank.

spend 500 and tuen it properly to pumpgas and you'll be set

-ryan

TheHater

Good advice

What about if you put half 100 and half 91?

Quick 200k Mile Motor

:cough: the chit you use to clean up after painting

boosted92

You could do a mix of race and pump if you wanted to, but xylene works well, and its 117 octane. Mix that in and shizzam. I'm a fan of alky/water injection systems though. It's roughly the same as running race gas, but it's a helluva lot cheaper and it cools off the boost a lot. My bud runs it in his mustang, he has a non-intercooled vortech YS-trim on an 8.5:1 compression motor, and with the alky and water he runs 20 pounds of boost on 93 octane.

ITR981002

I was reading on a GN site (they use Toulene a lot) that you can only mix something like 20% Toulene with fuel which only gets you to about 94 octane

MaxBoost

Damn I only pay 2.10/gallon for 100 octane. I run it 24/7 in my all-motor hatch. Then again without it I ping like a ****.

TheHater

WTF 2.10 today i bought 91Octane for two bucks .....wtf is cali coming too

Thanks you guys for the advice

Bnjmn

Methanol injection...but it really only a good idea if you have a standalone to tune the fuel tables. It gives you sky high octane when you need it (boosting).

Ben

Josh Carr

Yeah, I hear that $1.97/gal here in NY, filled up yesterday in PA for $1.70/gal. MAkes absolutly no sense that the prices range that much.
Josh

nitroedhx

you guys do know that mostly all gases with over a 105 rating has a high lead content right? I hope so. 100 is fine. You can always use alchy. Cheep but burns fast...
Other info...did you know that the FED. government will cover the costs to switch your car over to alchy? YEP. I'm looking into everything. Different rings, pistons, fuel system, injectors, rail, regulators, and alchy coolant systems.

Zero_son

You do know Methanol is toxic right? I'd use ethanol. Methanol is about 20 times more toxic than gasoline. .

Chronic exposure to methanol, either orally or by inhalation, causes
headache, insomnia, gastrointestinal problems, and blindness in
humans and hepatic and brain alterations in animals. EPA has derived
an oral RfD (reference dose) (see end note 3) for methanol of 0.5
mg/kg/day, based on the absence of liver and brain effects in animals
exposed by mouth to 500 mg/kg/day.

1. Humans - "Chronic" exposure to methanol vapors (no time or dose
given) caused conjunctivitis, headache, giddiness, insomnia,
gastric disturbances, and bilateral blindness (ACGIH 1991).
Marked vision loss occurred in one worker exposed to 1200 to
8000 ppm vapor for 4 years (ACGIH 1991).


Nitroedex- I was looking to that as well. Where'd you find out about the government covering it? I need more info on this.


[Modified by Zero_son, 2:41 AM 2/14/2003]


[Modified by Zero_son, 2:41 AM 2/14/2003]

Bnjmn

Gasoline is pretty toxic too...I'm missing your point here.

TheHater

Damn ...ROFL that was just funny.