Hey all I've got a quick question for you guys and girls running water meth. I am buildin a kit for my 91 and I need some advise on my jet size in gph. I mainly want it for increased mileage but also for a little extra power. I have a 91 intercooled with a full exhaust, cold air intake, and the pump turned up a pretty good amount.

 

I run two 625ml/min nozzles on mine. Picked up 40-50hp which seems to be normal for these trucks.

 

Is that on your setup in your sig? If so any recommendations for mine?

 

as far as nozzles and flow run as big as you can it should choke the engine down then back off on the flow just a little and run 25% meth and 75% water if you want MPG
for power run 80% meth 20% water

 

If you have all that HP over 450 and over 900 on gas. I want to see a time slip 1/8 and 1/4 before I believe it

 

I would not recommend any more than a 50/50 mix ratio unless you are prepared to deal with the hazards.

 

i do i have seen the truck and i know who works on it

 

The W/M systems on my trucks both went through several evolutionary changes. I eventually settled on setups using more smaller nozzles mounted in the intake plenum (as opposed to the horn). I have 3 200s on the 1st Gen and 4 200s on the commonrail. The 1st Gen seems to get better effect from it, both in terms of lowering EGT and power boost. I suspect that is mostly due to the commonrail's better overall breathing efficiency with 24 valves and a much better turbo. I also believe progressive controllers will give the best overall results for anything other that strictly racing or sled pulling. An on/off switch is fine if you are just using it for competition, but that would be the only way I'd use anything other than a progressive controller to run it. I initially ran just a switch on the commonrail and it was difficult to find a the starting boost point below 25psi that didn't cause quench at anything less than full throttle.