Preliminary Water Injection Results
Originally Posted by Lorca@Z1
The dyno numbers on base APS 8.5 PSI were the same with and without WI. Water itself is not a power adder, it is the ability to raise boost and advance timing with WI that will create power gains.
Without raising the boost or advancing the timing, WI essentially just cools the charge air and cylender temps as well as raiseing the octane level.
Without raising the boost or advancing the timing, WI essentially just cools the charge air and cylender temps as well as raiseing the octane level.
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From: Atlanta
Originally Posted by nis350ztt
Would WI prevent the engine from getting heat soak quicker (therefore it may be good for those who like to drag race and make 4-8 runs)?
Once the charge enters the cylinder, water in the induction charge following the exit of the super heated exhaust gases (1500+ degrees) begins to immediately cool the surfaces within the cylinder including the cylinder walls, piston head, combustion chamber, valves and spark plug tip. This cooling will have its most dramatic effect on any possible hot spots the coolant system has not adequately addressed. Surface temperatures will be significantly reduced by the water even more so than the extra fuel that was previously being used to cool the cylinder surfaces.
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From: Atlanta
Originally Posted by Phatmitzu
Correct me if Im wrong, I always thought cooler the air, higher the HP?
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From: Chicago Burbs
i guess i mis-read your questions.... if you are talking abotu the temperature of the engine and its components themselves, then yes, it will be cooler. (Oil, EGT, Coolant)
any good turbo application should have the following gauges
Pre-intercooler temp
Pre throttle body temp
coolant temp
oil temp
exhaust temp (an absolute must)
these are the basic temperature gauges that you really need to keep track of stuff. and if you track the car, transmission fluid temp is good as well.
any good turbo application should have the following gauges
Pre-intercooler temp
Pre throttle body temp
coolant temp
oil temp
exhaust temp (an absolute must)
these are the basic temperature gauges that you really need to keep track of stuff. and if you track the car, transmission fluid temp is good as well.
Originally Posted by mr2fasterthanyo
it will not change the temperature of the air coming out of the intercooler (or cool the intercooler), but it will cool the air prior to entering the throttle body.
so the answer is no. it will not help the heat soak of the intercooler. the only reason why you lose power on heat soak is the increase of the charged air temperature. this is what WI will help. so regardless of a heat soaked IC or not, your charged air will be cooler with WI than without.
that make any sense? i could draw a better diagram if i could.....
basically turbo--> IC-->WI--> Throttle body
.........................................^ right there you want the coolest air possible.
so the answer is no. it will not help the heat soak of the intercooler. the only reason why you lose power on heat soak is the increase of the charged air temperature. this is what WI will help. so regardless of a heat soaked IC or not, your charged air will be cooler with WI than without.
that make any sense? i could draw a better diagram if i could.....
basically turbo--> IC-->WI--> Throttle body
.........................................^ right there you want the coolest air possible.
a) WI under peak TQ, usually in the mid rpm band under max boost.
b) IC spray upon an ellevated heat differential accross the Intercooler.
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