Captainmorg

discuss.

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FMOS Racing

Pretty much the same idea as with a blower. Some reduction in CC and EG temperatures, some increase in effective octane.

I personally wouldn't bother with it on an intercooled vehicle, though I know some people are. I just think you start to walk the ragged edge when you tune for that outer limit.

Non-intercooled, though, I think it's a great idea.

airtroop01

I ran the Snow kit with my supercharged combo and I am running it with the Turbo. It works great. If anything I think you've got an added edge of safety if you're running pump gas with your combo.

Captainmorg

My intent was never to account for an increase in octane. However, I like the idea of being able to increase timing due to temp drops. I was curious if temp improvements with a turbo would be greater, lesser or on par with a supercharger.

Does the snow kit inject before or after the IC?

Frank5L

temp drops in the chamber kinda goes hand in hand with increased octane. Race fuel burns slower, as does higher octane fuels. Thats what allows you to run more boost/timing/etc with them.

airtroop01

I inject before the throttle body and after the turbo.
Temp improvement with a turbo is already better than a supercharger. You're going to get even addl. benefits with a turbo because less of the mix is flashing for heat reasons and more will be available to be burned off as extra octane.

Looking at some of the turbo buick forums, a lot of them inject before the turbo to help spool it up faster. There was a lot of debate early on whether that would hurt the turbo but now, many of them accept it as fact that its a safe thing to do.

If I was interested in a kit, I would either go with Snow Performance- cause they put out the "SafeInjection" unit which could be of high value. (but I really hate the nylon lines) or the alkycontrol.com kit... they make a great kit and even better customer service.

gasguzzler

The Buick guys usually run it to allow them more boost on pump gas (along with a little more timing). I think what your horsepower goals are in relation to your engine/intercooler combination will have a big factor as in to whether or not I'd use it. I prefer to just use an intercooler for many reasons.

airtroop01

Oh, make no mistake... I'm not saying to run an methanol/alcohol system instead of an intercooler. However, in addition to, there are more benefits than just cooling air that you get out of a kit like that.

Captainmorg

Hmm, I always thought of it as cooling quicker rather than burning colder. Basically, alcohol conducts heat much quicker than air so it would dissipate heat quicker (in the intercooler) than without. Perhaps I should read into it again.

airtroop01

Alcohol absorbs heat, it doesn't conduct it.

Captainmorg

This is semantics I assure you. There are three methods for heat to be transferred: conduction, convection, and radiation. For it to simply absorb heat it would have to be at a lower temperature. When it does absorb heat (like when you poor alcohol on your arm) it will most likely and efficiently be done via conduction.

airtroop01

Oh, I wasn't trying to be a smart @ss when I typed it.

But, not quite a semantic idea to me.
Conduction is the process of losing heat through physical contact with another object or body while evaporation or 'flashing' is the process of losing heat through the conversion of liquid to gas. If the alcohol just took the heat out of the heads and transferred it to the air, I'd say okay. Or if it took the heat out of the air and went out the exhaust, I'd say okay.
But in this case the alcohol particles are injected at such a fine mist and flash in the air. The process of evaporation is really what makes this thing work. That doesn't mean I'm saying that no conduction probably doesn't also take place... but that's not what I think is giving the biggest gain.

Again, not trying to be a smart @ss.

Captainmorg

removed - because I'm tired and asking the same question again.

camcojb

My two cents. With the turbo your IAT2's should be less, probably noticeably so versus a blower. I still like the alky idea though as it will still allow more timing/boost on pump gas than without it. And that means more power. If it was a race tune I wouldn't use the alky myself, I always had it shut off in the race tune. You have plenty of octane in that case and you eliminate one variable.

Jody

mhays26

I think the reason nobody is answering your question straightforward is because nobody really has a completely accurate answer to that question. I was interested in hearing the reasoning behind it either way