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Discussion Starter #1
Installing a snow performance stage 2 kit on my 03 350z.

I am in the 700hp club with twin turbos and built motor.

I'll be posting pictures and a write up of the install because I'm really not finding any in depth install pics.

Currently I'm doing an overhaul on the motor and fuel system and adding some cooling modifications.

My question is where are you guys tapping into the system. I dont want to tap into my intake tubing and dont want to go into the manifold itself. Also far too lazy for direct port.

I like the idea of a throttle body injection spacer (clean and simple). Anybody utilizing this method and if so, what brand did you use? I cant find a **** thing online.

Any pros or cons to throttle body spacer plate?
 

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when I was TT'd I sprayed pre-turbo - essentially tapped into the filters.

Since going single turbo I cannot squeeze a nozzle pre-turbo (although I may still try) but I have a nozzle right before and right after the intercooler.

I run a snow performance stage 3, coming from the AEM setup (putting the AEM on my F150) but I really like the snow performance.

I would spray as soon as you possibly can. You want to give the methanol as much time to atomize and cool the charge.

You need to spray pre-MAF / pre-temp sensor (IMO) to get the most benefit.
 

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Discussion Starter #3
when I was TT'd I sprayed pre-turbo - essentially tapped into the filters.

Since going single turbo I cannot squeeze a nozzle pre-turbo (although I may still try) but I have a nozzle right before and right after the intercooler.

I run a snow performance stage 3, coming from the AEM setup (putting the AEM on my F150) but I really like the snow performance.

I would spray as soon as you possibly can. You want to give the methanol as much time to atomize and cool the charge.

You need to spray pre-MAF / pre-temp sensor (IMO) to get the most benefit.

Great advice. Looked into it. Think I will probably go pre turbo, or turbo valute injection with 1 nozzle. And post turbo with another. (You apparently opened a box of other options for me)

Do I need to worry about MAF getting messed up from the spray?

Plan on running 50/50 blend.

I'm mostly concerned about knock. Only 91 octane fuel is available in my area. And VP110 is expensive.

Thanks man
 

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Discussion Starter #4
After reading your reply I starting looking into pre turbo options and thought about spraying into the volute, because I'm concerned about wrecking the turbos if check or solenoid doesnt work perfectly.

Looked to see if anyone has done it and apparently someone has.

Spraying directly into the turbo volute sounds like the safest way to do it while producing the same results as pre turbo.

It essentially takes the risk of droplets hitting your turbo of out the equation and still getting the benefits of cooling in the compressor and rapid atomization.

Any take on this?
 

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I dont worry about mist / droplets hitting anything in the turbo ... it's a simple spring valve in my nozzles and if it were to fail the filter would get soaked, not the actual turbo.

Concerning your MAF ... I dont run a MAF so it doesnt register on my radar but you should either place your nozzles as far before the MAF to give the charge as much time to atomize and become part of the charge or you should run it after your MAF.

I think running it after your MAF is dumb as you can't tune (and take advantage of the) the cooler/denser air temps into your ignition timing. But plenty of people do it this way.

what are your power goals?

91oct isnt bad ... I pushed 17psi / 568hp without water meth on 91.
 
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