Octane boost

[yammiman]

...Methylcyclopentadienyl Manganese Tricarbonyl....

That is a metal simular to lead as I indicated in my post - the distilates could be toulene, benzine, ethers, or alcohol/ethanol, or any combination of them - I stick with what I know - metals only control detonation and nothing more - they leave deposits and are only needed when your octane requirements exceed what can be obtained with unleaded fuels - research what I am saying - the intenet is a wealth of information and several test have been performed on octane boosters, leaded race fuel, and unleaded race fuel - you will even find information on how to make your own octane boost out of toulene (which I used to do) - but believe me when I tell you, nothing can beat fuel with a high hydrocarbon content - think of it as trying to start an engine by spraying kerosene in the carbs opposed to spraying starting fluid (ether) in the carbs - not that extreme, but you get my point?!?!

 

[goingmach_1]

Lead in fuel way back when was added to lubricrate the exhaust valves in their guides.

It was cheaper for the car manufactures (engine) to put solid valves in the engine then it was to put sodium filled valves which is need to carry away the heat. Otherwise a more exotic valve guide was necessary that did not last in continous service, requiring pre-mature replacement.

Think cheap.

There is other ways to control denonation. Water-methonal injection for instance. This was used on high horsepower (boosted) aircraft engines on take-off when, as Yammiman stated, just octane would not. There was a time when the big Pratt and Whitney 4370 (cu.in) 36 cylinder needed 160 Octane plus water-methonal injection to make take-off power.

Thankfully the turbine engine caught on.

 

[snomofo]

Lead in fuel way back when was added to lubricrate the exhaust valves in their guides.

It was cheaper for the car manufactures (engine) to put solid valves in the engine then it was to put sodium filled valves which is need to carry away the heat. Otherwise a more exotic valve guide was necessary that did not last in continous service, requiring pre-mature replacement.

Think cheap.

There is other ways to control denonation. Water-methonal injection for instance. This was used on high horsepower (boosted) aircraft engines on take-off when, as Yammiman stated, just octane would not. There was a time when the big Pratt and Whitney 4370 (cu.in) 36 cylinder needed 160 Octane plus water-methonal injection to make take-off power.

Thankfully the turbine engine caught on.

I remember a product called Vera-injection (I think that was the name) sold in the late 70s/early 80s which was just a water bottle and injector installed into the air cleaner and just sprayed a little water into the airhorn. I think it had a switch you installed on to the throttle so it would inject at WOT.

 

[A couple of bucks]

Ok....I did a search for 'octane requirements' and decided to revive this one.

Wouldn't........say..........hydraulic fluid be an octane booster. Not nearly as igniteable as gas.

And........say.........MEK would actually lower octane seeings how it flashes over WAAAAAY quicker than gasoline.

 

[mopar1rules]

Wow, pretty sweet if it works as you say Bought some wilder racing heads for my srx a litle while ago, not really knowing what I bought :P
No info was provided, but can see that they are alot smaller.. Can measure with liquid how much the difference is, if that would help..
Anyways, talked to a mechanican friend of mine, and he recomended to rise the octane since the compression is raised.. Have not got race fuel awailable where i live and do not trust the simple octane boosters.. Since I'm a newbie with snowmobiles and 2-strokes, I choose not to install them..

But can anybody tell me if I could use them with just Torcora? (run on 98 pump gas now)
Thanks for any input

none of us can tell you what octane you can safely run, w/o knowing what your UCCR and CCR of your engine/setup is.

 

[mopar1rules]

I've haven't heard the term "lit earlier"...but it makes PERFECT SENSE..... Higher octane burns SLOWER and resists DETONATION... ( opposing flame fronts colliding together).. The OCTANE could be achieved in a few different ways... SOME PEOPLE use METHANOL to slow the burning process..... Slowing the process ===== Raising the octane.. First,,, you need to know a little about COMPRESSION RATIOS and port timings to understand MORE about using HIGHER OCTANE FUELS.... Just because it has HIGHER OCTANE,,, doesn't mean your sled is going to be FASTER,,, in FACT,,,,,, HIGHER OCTANE actually SLOWS down a sled!!! (most sleds)..... Now if you have HIGHER OCTANE and you DONT USE MORE FUEl,,, your cylinder temps will get SO HIGH that you will burn a HOLE in your piston (detonation) or melt a ring groove..... I could go on for DAYS,,, but I WON'T !!!

why would high octane fuel cause you to burn a hole in your piston from deto? higher octane fuels resist deto.

 

[sideshowBob]

I started using Torco Accelerator this season and I love the stuff!! (and no I am not a dealer!!)

I also use Torc Accelerator when I have to fuel up with questionable "Trail Side mystery fuel" and from experience I can tell you it does help keep my DCS system from triggering.

Bob

 

[Netefrog]

I like the Amsoil octane boost myself.

 

[sxr1000]

SLP recomends lucas octane boost at 1 oz per gal. for the 800 cfi engines.

 

[Mac]

Now if you have HIGHER OCTANE and you DONT USE MORE FUEl,,, your cylinder temps will get SO HIGH that you will burn a HOLE in your piston (detonation) or melt a ring groove..... I could go on for DAYS,,, but I WON'T !!!

I agree with Mopar on this one. Higher octane fuel produces less HP in a two stroke engine. High octane fuel also produces less heat and runs cooler. As a result you can usually jet leaner and create more HP.