I was planning pre blower - i know i wont be using it all the time, id have to think its OK. its not 100% meth

 

that's what my theory was as well. its not like im constantly on the gas pedal and at 9psi or more.

 

I sprayed preblower for 2 years with my M62 and the rotors were mint when I swapped to my TVS. Much more benificial spraying preblower also.

 

Could you explain to me the difference between pre and after blower

 

pre-blower is sprayed before the throttle body usually, by either tapping into the intake tube, or using a throttle body spacer that has a "port" for the meth nozzle to screw into. spraying pre-blower allows for the meth/water to cool down the supercharger itself, and the incoming air that is being shoved into the engine by the supercharger rotors.

post blower is usually done by having a plate underneath the supercharger, and the meth / water is sprayed into the intake. this also cools down the charged air, but does not cool down the blower at all.

 

Another plus to preblower is it tightens up rotor tolerances creating more boost

 

ive sprayed pre blower for 2.5 years, and probably 60k miles.

you can see where the line comes in before the throttle body coupler



and heres my rotors at 85k miles

 

have a trunk mount ais stage 1 for sale
pm me for details

 

there is power to be had with water meth on e

 

i used a 3gph nozzle with just water for cooling and had about a 5* difference
pointless lol

 

run the 7 with a 50/50 mix to keep the blower cool

 

then that would throw off my afr's too rich
may try the 7 with just water