3800 Poll: what should I spray in my SC

[imported_Ron Vogel]

I pretty much have my mind made up on what I'm trying first, but I'm curious to what everyone thinks.

I'm using a a PWM controlled injector at the SC inlet. The spray has to go through the rotors and IC, and I'm looking for some cooling, but mostly want an extra injector to help richen things up on top. I have a pump that I can run the alky/water/E85 through, but for gasoline I will be tapping the rail.

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[Royalgtp]

100 shot~!

 

[imported_Ron Vogel]

That is not an option! Anyway the way us Americans use N20 is cavemanlike compared to what the Europeans are doing with it.

 

[MIKES3]

Ron... I dont remember if it was you or Tom (PizzaGTP) I was talking to about this, but I would just go the poor mans way (washer fluid). Seems safer.

 

[imported_Ron Vogel]

So when does safe have to be a concern?

C'mon guys, so far 29 looks and 3 votes?

 

[SaturdaysGS]

I voted, and I choose the washer fluid mix. I chose that because it seemed to be the most used method, so I guess im a follower, not a leader.

 

[MIKES3]

Originally posted by Ron Vogel@Jun 2 2005, 09:01 AM
So when does safe have to be a concern?

C'mon guys, so far 29 looks and 3 votes?

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I like to be safe rather than sorry. I'm limited on money and a car

 

[Mike K]

knowing you... gas.

 

[BumpinGTP]

I feel that washer fluid will yield the most effective results (cost vs. power), however, I dont believe in WI anyways, Im always picking on Rob Archer about it whenever I see him.

 

[imported_Ron Vogel]

It's going to be gas, then Methanol. I'll be scaling down my MAF tables to bring the IPW's to 90-95% duty cyle, then turning up the gas until my knock sensors are happy. I have some "fail-safe" protection built into the circuit to make sure I don't lean it out, but it's actually going to be safer and more relable to inject gasoline before the SC...that is, unless it ignites in the LIM, that would be bad.

 

[BumpinGTP]

Just so you are aware, the gas will strip all of the coating off of the blower rotors, however, the gas will form a tight seal between the rotors in place of the teflon, so I guess it balances out.

 

[imported_Ron Vogel]

Like there's any left anyway? The Gas is atomized into a fine mist that will also cool and lubricate the rotors as they spin. What's nice about Gas/Methonol is that the Ph is set-up as a base, which is nice and slick. Water or 50/50 (washer fluid) is more acidic as far as it's Ph, and does not give very good lubrication. Any of the 5 choices will help, but the E85 will require a seperate fuel cell, so that's out. The water/methonol can be stored in the wsher fluid tank, and in high heat will be suffering from 120-140 degree underhood temps. If I tap the rail, fuel should be at ambient since it's a return system. I'll be dagerously close to vapor lock temps with the other set-ups.

 

[xierxior]

uhm, do the rotors get hot eough to the point where it's going to push the gas past the flashpoint? that wouldn't be good :lolsign:

 

[imported_Ron Vogel]

Originally posted by xierxior@Jun 2 2005, 02:53 PM
uhm, do the rotors get hot eough to the point where it's going to push the gas past the flashpoint? that wouldn't be good  :lolsign:

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Maybe I should buy some breakaway bolts?

Prolly won't get that hot if I'm throwing fuel on them to cool 'em down. I'm more worried about puddling fuel in the LIM.

This isn't anything groundbreaking, turbo guys have been adding coldstart injectors to their intakes for years. Only thing I'm doing different is pulsing the injector to control it a bit better than simply flipping a switch.