Anyone had ever tried making octane boost or using toluene?

[mgold]

What's amazing is that one of the recommended additives, MTBE, was brewed into all of the gas they were selling here in Calif, but it got such a bad rap that its now been pulled. So now we're back to 91 octane from the pump. Its really too bad. As I understand it, the higher the octane, the cleaner the gas burns. Go figure.

[BimmerToad]

MTBE additive is better for the air, but in a few cases it's been found in the ground water. It's a trade off . . . . cleaner air = MTBE : cleaner ground water = ethanol

BTW: That MSDS (material data sheet) on Toluene is practically the same as any other organic hydrocarbon. I used to work with that stuff all of the time when I was a biochemistry major. The only compound that wasn't dangerous was water (they forgot to mention you can drown in it!)

I wouldn't worry about Toluene, as long as you don't polish off a few gallons of it ;)

[Jordan]

Food for thought:

I have the MarkD chip in my e30. It pings badly on 91, and is happy with 92. It's designed for 93.

[Mystikal]

Food for thought:

I have the MarkD chip in my e30. It pings badly on 91, and is happy with 92. It's designed for 93.

I tested that chip at 91, we couldn't get it to ping without really getting on it. As I said it's fine to limp home on, just wouldn't do it in non-emergency situations.

Oh, and it was designed for 94 originally. Kinda got lucky in having a fairly large tolerance. ;)

[Jordan]

Meh, on my engine it pinged with 91 under most load conditions.

[Rob]

colder in toronto?

[Mystikal]

'Twas summer. I also forgot about your other "stuff" Jordan, makes more sense now.

[mspiegle]

#1 - As far as porsche, the owners manual for my '86 928S says 91 minimum, 93 reccomended. I run the car with 91 under 4lbs of boost and it never pings. My friend runs his under 7psi without pinging as well.

#2 - Just goto a paint store and pickup a gallon of toluene and dump it into your tank. Nothing special...

#2.5 - BE VERY CAREFUL WITH TOLUENE. The dyno shop I goto builds performance honda engines for a living... the guy had 2 of his friends die from toluene. its a very nasty substance. don't breathe it, and don't get it on you. WEAR GLOVES.

#3 - F1 racers do NOT run pure toluene. They add in a good amount of a stable non-combustable filler.. i forgot what its called.

#4 - just octane alone won't necessarilly increase your hp unless you need it (knock sensors retarding ignition because of shitty fuel). Furthermore, if your car isn't designed to use anything above X octane, then you're just eating up your cats faster with the additional octane.

[BavarianBimmer]

that 993 is rated on an Euro scale we have 95,97 or 99 octane here
but it's a different scale

[Rob]

he needs to get US software then, which will be better for US gasoline...

[kylebes1]

or buy a bottle of octane booster from Autozone or wally world, if youcannot remember to fill up at that one place take a swig of the octane booster and walk home.