That's right. Same with alcohol. Getting rid of and keeping away carbon buildup is an A+ thing in any engine!

B

 

I can understand what you doing.

But i am not using 2700cc of water?

15-1600cc of water.

For 500rwhp id say around the 1000cc mark is perfect.

 

that's alot of water. but i guess if they liek it like they like gas

 

Evidently i cant read or add... corrected version

Your setup produces roughly 93.3lb/min of air at 34psi and you use 1600cc/min of preturbo water injection.

~17.1 cc/min per lb/min of air
~47.1 cc/min per psi of boost
~84.0 cc/min per psi of boost past 15 psi

scaling this back to a 500 hp car at 25 psi producing 66.6lb/min of air
based on air flow: 1138.9 cc/min
based on boost: 1177.5 cc/min
based on psi of boost past 15 psi: 840 cc/min

 

Thats more like it.

its alittle overkill. But id rather some extra water and less dead apex seals.

 

An easier way in which I mentioned earlier was to just calculate water to fuel mixture. Use 10% as a minimum and 25% as a maximum.

I will be running 11% water to fuel mixture (550cc Jet) with slightly richer a/fs on my next setup.

5060cc fuel with about 10% water to fuel mixture means you use a 500cc jet.

5060cc fuel with about 25% water to fuel mixture means you use a 1200cc jet.

 

rx72c what are you doing for your fuel setup as far as injectors size and how many of each?

 

Two Raceonly 044
One Raceonly FPR1000
4X 1700cc Bosch Indy Blue injectors

Anything else you need to know?

 

Two Raceonly 044
One Raceonly FPR1000
4X 1700cc Bosch Indy Blue injectors

Anything else you need to know?

 

Sorry, maybe I missed it, but are you running the Rice Racing kit, or something with equivalent atomization?

 

Nope.

I made the kit myself with a few coolingmist bits.

 

just asking, but the nozzle you are using is actually some sort of spraygun (paint) nozzle?

 

Nope. The new kits are similar to that.

 

Remember he is also spraying pre-turbo so the turbo helps to atomise the water. Great job by the way Rx72c. Was waiting on this day to see you post figures like these. Hey what seals are you running?

 

Half Super seal, Half E&J.

Engine was running a full set of E&J seals but we damaged 3 apex seals when we had one of our WI jets fail. replaced everything in the front rotor and put Ra super seal.

Cant pick them really. If i didnt know my self i had ra seals in one and e&j in the other, then i would never know. It runs mint.

Start it in the morning with no assitance, not even idle control, idles fairly smooth at 950rpm. Engine dosnt pull much vaccum but this is due to the agressive porting.

 

how big of tanks are you guys running, and at say 500cc-650cc/min how long does that last if I was doing a track day with a lot of WOT.

 

do you have a pic of the ports, are they similar to rice's ports? do you think the car is at its limit or do you think you can push it higher on WI and pump?

 

My tank holds 5 Quarts.
5 quarts= 5678cc
5678 / 600cc(min) =9.46 mins

So roughly 10 mins of full boost.

I used to have my water activate around 3 psi, and I went through 5x more water compared to the 8 psi I activate it at now. Activation point makes a huge difference.

 

Im not sure if the car can be pushed harder on pump. Time will tell. I want to see how reliable its going to be at its current level.

Rice Racings ports work very well. If your thinking of copying his porting design. Its a good one to copy.

 

so im takin it that you have a rice style port or is it one of your own design, my next motor will prob be my port with a small bridge, my port is a bit weird but will have to see how it goes. china gt45, rice WI, cdi, jatco 3 speed

 

i know your car and have seen your port.

If your doing a tic tac bridge. Let me tell you now its a waste of time.

We are doing a rx3 coupe now with the same setup as my rx7. But bridgeport.

It has the same mild port as the rx7 but with a full length bridge added on. Bridge is not very thick but only cause mild port is so wide.

In relation to how close it is to a rice port.

IT IS VERY VERY VERY CLOSE. went alittle wider on the port in my rx7, but that is not to say rice didnt do the same on his.

Can i add. If you have a chance to redo your ports. Take 1.5mm off th sidewall of our mild port on the water jacket side. And cut bridges in full length.

This will really get your china gt45 going hard so you can get a power band. Otherwise your car will make Peak hp but have no powerband.

With the above port youll get over 500rwhp by 5000rpm. And it will hold to just over 8500rpm before the turbo will start to run out of guts.

 

thanks dude, lol, now i feel like pulling the thing apart again haha, are you on ausrotary under a different name???

 

I have spoken to you on the phone a few times ash. You bought some turbos off us.

When you have it apart next time. Ill give you all the specs you need to make a killer port. Just send me a msg.

 

I always wondered what the A/F ratio looks like before and after water?? how does it offsets the readings on the wideband??

 

Very rarely see much of a difference.