The GTART car managed large gains with pre turbo 50:50 water injection.
Also so did the jcb diesel top speed car. With out the water it could never have made the power ( fact )
I simple terms water injection will decrease the pressure at PPP enableing you to run more boost and achieve a better BSFC, VE, BMEP for a given engine.
This is an old concept used from WW2 fighters.
Scott
Water Injection
If there is interest in WI then maybe we should start a new thread so we can exibit info and answer questions.
Scott
Charge temps are a bit of a good side effect... At the last meet after i over shot the turning to snetterton. I arrvied at the event with a very very cold intake plenim. In fact the intake manifold froze on the way home.
It is all to do with how un efficent petrol is at absorbing heat. ( something that is all relevent to turbo cars )
Water has 9 times the specific heat capacity of petrol. ie you can replace the fuel you use to cool the combustion with it. Methanol can raise the specific octane content of the fuel. I run a race map on pump fuel becasue of this. I am leaner and have more advanced timing for this very reason.
When the combustion is cooled correctly you will find your oil temps and egt's drop also. This makes way for more and more power. TBH the limit is how much power can you fuel system and engine handle.
Scott
Scott
Charge temps are a bit of a good side effect... At the last meet after i over shot the turning to snetterton. I arrvied at the event with a very very cold intake plenim. In fact the intake manifold froze on the way home.
It is all to do with how un efficent petrol is at absorbing heat. ( something that is all relevent to turbo cars )
Water has 9 times the specific heat capacity of petrol. ie you can replace the fuel you use to cool the combustion with it. Methanol can raise the specific octane content of the fuel. I run a race map on pump fuel becasue of this. I am leaner and have more advanced timing for this very reason.
When the combustion is cooled correctly you will find your oil temps and egt's drop also. This makes way for more and more power. TBH the limit is how much power can you fuel system and engine handle.
Scott
"You think you have a limit, As soon you touch this limit, something happens to you; suddenly you can go a little bit further. With your mind power, your determination, your instinct and your experience as well, you can fly very high."
yeah, you get extra octane from Methanol but Methanol is also a good antifeezing agent. A lot use 50:50 Methanol:Water.
This can not be the only reason tho, or I would just chuck some methanol in with my fuel!
This can not be the only reason tho, or I would just chuck some methanol in with my fuel!
'05 Subaru WRX 300
R.I.P
'89 ST185 GT4
ONLY 370bhp & 405ft/lb @ fly
12.7s 1/4 @ 109mph in the wet
R.I.P.
R.I.P
'89 ST185 GT4
ONLY 370bhp & 405ft/lb @ fly
12.7s 1/4 @ 109mph in the wet
R.I.P.
You will be able to lean right back with using water or what ever mix you like.
When you do this you will unlock hidden power in the engine.
You could un leash lots of power on a big spec car.
Scott
When you do this you will unlock hidden power in the engine.
You could un leash lots of power on a big spec car.
Scott
"You think you have a limit, As soon you touch this limit, something happens to you; suddenly you can go a little bit further. With your mind power, your determination, your instinct and your experience as well, you can fly very high."
a lot of people do chuck methanol in their fuel - acts as a coolant and raises octane.
http://bbs.22b.com/cgi-bin/ultimatebb.c ... 320#000013
I think I might give this a go as Mocom uses Methanol quite a lot as a home brew octane booster and enables more ignition advance iirc
http://bbs.22b.com/cgi-bin/ultimatebb.c ... 320#000013
I think I might give this a go as Mocom uses Methanol quite a lot as a home brew octane booster and enables more ignition advance iirc
With methanol you have to advance the ign timing. If you keep the timing stock you will loose power because it is a lazy burner.
"You think you have a limit, As soon you touch this limit, something happens to you; suddenly you can go a little bit further. With your mind power, your determination, your instinct and your experience as well, you can fly very high."