I have a 144 supercharger on a 350. I put down 365rwhp and 410'lbs of torque. I still have some minor tuning and probably have another 15-20rwhp in this combo. We noticed that while on the dyno after 3-4 pulls the blower gets hot and i was dropping 25-30hp. I was looking into a boost cooler system and found a kit made by snow perf. This kit uses a carb plate to spray water/meth into the blower to cool boost. It is boost controlled and can be set to turn on and off at whatever level you pick.

I called the company and was told that this system will allow me to advance timing another 4-6deg using the same gas. They also claim the kit will add 10-20% hp and i will never experience lose of power due to hot boost again. the water/meth can be made with windshield washer fluid mixed with a bottle of dry gas.

Has anyone here used this kit or something similiar? It sounds like a cool system but It cost $590 and i dont want to waste money on something that doesn really work. however if the 10-20% increase is true then i'll see another 35-70 rwhp then it would be worth it for me.

 

A lot of the C5 and C6 guys are using this. On the supercharged ones seeing that they run high compression to begin with it really cools the mixture down. I was with a guy on a new Z06 who had this type of system on his supercharged motor and it made somewhere in the 700+ HP/TQ range at the rear wheels. Without the meth injection it would melt under the high compression and heat.

 

I have used water/meth on my turbo bike, and my buddy has a programmable meth kit on his procharged z06. Water/meth should be used as a safety device only, not to increase boost or timing advance...in theory "yes you can" run more boost or timing but....it is not advised by those who have actually used it. Also that is where the additional power comes from, the added timing and/or boost increase. The meth itself will not increase power much even with the cooler air charge because you are replacing air volume in the charge with water/meth...technically you are displacing the air with water...(which doesn't make power). It may or may not hurt your hp, "sometimes" it can help add hp in super hot intake air temp situations....just don't get your hopes up. Lastly, you need to make sure that the blower internals can handle having liquid compressed in the charge. You can very easily destroy the screws/roots by "pressure washing" them constantly. I killed a T3 turbo the same way...injecting the mist into the compressor at the inlet...after a couple months the wheel looked like a 50yr old boat prop that went a shore at 100mph....

Remember most meth systems now are injected after the blower/turbo...you will be injecting into it. Probably not a good idea but...

Just do a lot of research on this before you pull the trigger... It might be worth the effort though if you can do it safely...

 

Interesting. I have seen them used many times but never really knew the reasoning and the pros and cons of the system.

 

I have two friends using meth kits on their charged fox body Mustangs. It does really work allowing you to run more timing and make more power.

I have had many discussions on this subject with my two friends running it and I personally feel it does not belong on the car if it is primarily used for cruising, but if the main purpose of the car is racing then go for it.

 

Pro's
-Run more timing.
-Make more power.

Con's
Failure of any of the following will cause detonation
-Pump failure.
-Plugged line.
-Run out of fluid.

 

I'm probably going to hold off on this water/meth kit for now. I'm running 30deg timing now and with this kit I could probably run 34deg. 4deg timing might get me another 20hp? If I buy a bigger crank pulley I could crank up the boost from 6psi to 8-9psi but its a $275 pulley so I'm going to hold off on that for now. The bigger pulley would also require a new blower belt and thats expensive as well.

So basically I would be paying 600 bucks for the kit and see little to no gain in performance with my current setup.

 

You might be surprised how much gain you would get from the snow perf kit. I installed it on a 2000 Mustang that I supercharged and it made a world of difference. It is basically the same effect as an intercooler without the loss of air velocity. The cool charge it creates on its own can add some power not to mention the help it gives towards reducing heat soak from the blower. Its a very worthwhile investment IMO.

Its not uncommon on the mustangs for people to run 10 - 12lbs of boost on a centri, and use the snow perf kit as a stand alone instead of adding an intercooler. Ive seen that done more than once as well.