water injection

[HighPsi91]

No I didnt miss the rest of the thread, thanks for the recap though. I just dont understand what it is your driving at. I have seen several guys talking up propane injection. I understand completely what it does for you. I just dont see the appeal myself.

Lets say spraying propane on top of pump gas raises your effective octane to 108. Given the better timing and boost levels you could run, how much more power do you think you could get? I would guess it to be in the range of 30-40hp max (at least at the level most of these guys are at). Thats all well and good but....

You could put a nitrous kit on the same car and on the same pump gas run a 50shot safely and make at least 50 or so more horsepower. Plus the torque increase is usually even more profound. Then if the same car goes to the track and tunes for race gas they could also run a larger nitrous shot. Propane injection does not give you that extra benefit.

Therefore I group propane injection into the same class as water injection. Water injection will also effectively alow increased boost and timing... granted probably not quite as effective as propane, but darn close nevertheless. Plus it still has the added feature of being free. Plus you will never be tempted to sacrifice cooking on the grill for a street race Not to mention driving around with a tank of flammable gas just doesnt sound like a real nice idea.

 

[Imp Pwr Online]

You are correct to group Propane iwth Water-Alky injection. Same premise almost same results although Propane is showing better detonation control at higher psi.

So I agree. Same lines as Water-alky, just something different

 

[DSM_TSI_AWD]

With Nitrous it addes air when it breaks down more air = more exhaust flow = more boost = more boost Can be bad so if you want to run nitrous then i would run a window better yet a boost switch to turn off the system at a given rpm so you dont spike like a #@%#@%#@%#@%#@%

the set up i am workin on runin is a a 35 shot to 15psi and then 16psi to 24psi Water-Alky injection, cause on the dyno i was messing with the boost level and after 20psi the ecu retarded the timing aka knocking so 19psi is perfit for my setup right know.

Let me kow what you guys think.
Adam