shardul

iTrader: (1)

Has anyone used water injection on the Y pipe to cool the intake charge down?

heylifeisshort

I have H2O/meth injection on several of my cars. I am considering it with this beast but haven't pulled the trigger just yet as I haven't spent the time to learn the intricacies of the engine just yet.

iyad.2010

any updates ?

heylifeisshort

no, at this rate it will take me a while before I have the time to design a setup. the key is picking the right place for the nozzle(s). after that, just add a progressive boost controller, tank, and pump.

kamilclk430

Getting my Speedriven meth kit put on now

MB-CLS500

Hi did you installed meth kit on your car I bought a cl600 w216 and I want to isntall snow performance meth kit where did you installed nozzles on your engine?

DUDMD

I'll be doing water meth for sure on my sl600 as well later on. I'm probably going to do 3 nozzles. 1 small nozzle before each intercooler, and then a larger one on the y-pipe. That should help drop IAT nicely, and not allow intercoolers get as hot as just doing one nozzle post intercoolers.

shardul

iTrader: (1)

let us know how it works

KeithBoden

I was just running some theoretical numbers on various injection (water/alcohol) or evaporative intercooler cooling methods (spraying the intercooler with CO2, N2O) and was curious how it would compare to those actually using these methods. For the computation and comparison, I'm assuming 800hp, .5 BSFC, and targeting a 40 deg. (F) drop in intake temperature. (Feel free to reply with different parameters and I can adjust the parameters to see how your setup matches.)

Sprays - (65% IC/spray efficiency
CO2 spray cooling the IC: 300 lb/hr CO2 needed; a 20lb bottle would last about 4 minutes at a cost of about $3.25/min.

N2O spray cooling the IC: 450 lb/hr N2O needed; a 20lb bottle would last 2.5 minutes at a cost of about $15/min.

Injections - (90% efficiency)
Water injection: 50 lb/hr needed, or about .1 gal/min.
Alcohol injection (primarily methanol): 112 lb/hr, or .25 gal/min.
Ethanol injection (not E85, kJ/kg of evap for E85 anyone?): 146 lb/hr, or .3 gal/min.

Can anyone comment on nozzle sizes, flows, or IAT drops? It might be interesting to see how they compare to the theoretical!