Dragon

I have no problem with your Opinion, it's when you state things like they are fact when they are not proven that gets to me because it can cost other people $. A rotary is not a piston engine; there for all the stuff you’re reading on the internet pertaining to water injection on the piston engine does not all automatically apply to the rotary engine. You have no idea what is inside your computer and how it reacts to the intake air temp sensor. I have tried to get you to understand these things and educate you but you don't listen. Your Understanding of what you drive is lacking at best. It nice to see you are trying to learn, but yet at the same time I find it very disappointing that some one my age fails to do so. If I listed all my mods in my signature like your new one people would have to scroll threw about 3 screens full of mods every time they looked at one of my posts. The reason I called you a kid is because you act like one jumping online spouting out as if you know everything about everything when you actually know very little compared to some of us who have been doing this for a long time. I have purposely pushed and blown more engines finding out what they can take than you would ever care to replace in your car. I can tune and build a engine that will put out your hp and last for a very very long time due to my testing and experience at the cost of my $ and time and I freely give away this information to others in a effort to help the rotary community. For this reason your opinion is just that, your opinion so don't state things you don't understand as fact and we won't have a problem.

jspecracer7

Well guys, I have seen Dragon's work in person. IGY, Dragon and Head all helped me build my first motor. My second one, Chris helped me with the oil pump sheer key. This guys gives out VERY useful information at the drop of the time....Both him and IGY have basically done it all. I know IGY is DYING to say something on this thread, but he's a bit quiet when it comes to forums. Dragon on the other hand...well, he doesn't want people to get the wrong impression about water injection. It's a great system, but it won't replace an intercooler IMHO.



I have seen him go thru numerous engine's trying to get the mixture down, and he finally got a T-70 to boost 1.5+ kilos(21 + psi) on a street ported motor. Now he's got the 20B in his car and will have the first FD3S in Okinawa to have a running 20B....There's a TON of fabrication involved in this....it's a massive project....so it's safe to say that the I trust the guy who's made it happen vs. the guy who has speculated it could happen.

Dragon

actually 1.6 for a while and 1.7 for a few runs till the front main bearing decided to give it up..

jspecracer7

that'll teach you to put in a "new" used front stationary gear bearing...

Dragon

Hey, it only had 3,000 kms on it... then POOF! lol I think the 25psi of boost may have had a little bit to do with it's sudden and rapid failure... the cool thing was looking back at the data logs there was no knock and all the apex seals were fine..

ZeroBanger

I have no problem with your Opinion, it's when you state things like they are fact when they are not proven that gets to me because it can cost other people $. A rotary is not a piston engine; there for all the stuff you’re reading on the internet pertaining to water injection on the piston engine does not all automatically apply to the rotary engine. You have no idea what is inside your computer and how it reacts to the intake air temp sensor. I have tried to get you to understand these things and educate you but you don't listen. Your Understanding of what you drive is lacking at best. It nice to see you are trying to learn, but yet at the same time I find it very disappointing that some one my age fails to do so. If I listed all my mods in my signature like your new one people would have to scroll threw about 3 screens full of mods every time they looked at one of my posts. The reason I called you a kid is because you act like one jumping online spouting out as if you know everything about everything when you actually know very little compared to some of us who have been doing this for a long time. I have purposely pushed and blown more engines finding out what they can take than you would ever care to replace in your car. I can tune and build a engine that will put out your hp and last for a very very long time due to my testing and experience at the cost of my $ and time and I freely give away this information to others in a effort to help the rotary community. For this reason your opinion is just that, your opinion so don't state things you don't understand as fact and we won't have a problem. [/quote]



I have reasearched the things I talked about in this thread. The fact is you CANT prove anything I said wrong so you have to jump down my throat and contradict just about everything I said.



and atleast 3 times in this thread you said I'm not at power levels where I need water injection. For your info, I'm atleast 350 to the wheels, I blew my last engine which was tuned very well on the dyno. It blew at 12 PSI. It may have been a bad tank of gas (california 91 octain is reformulated crap) or it may have been too high of intake temps, I dont know. water injection reduces the level / risk of detonation and thats why I have it. I dont have to worry about a bad tank of gas, or high intake temps and I dont have to worry about heatsoak anymore.

DuMaurier 7

Me again , I said I'd leave you to your own devices but I just cant sit by and let another ROTARY be destroyed , just one question for you Mr Banger ...... , do you look at rallying on the SPEED channel ? , what do you think of those machines (forget the fact that they aren't rotarys) , Do you think the make good power ? , do they run like ****'s ? , do you see any of them without an IC ? , do you know that almost , if not all of them also run WI ? , take a hint from the pros , you dont replace one system with another without very good reason of course , but you make them compliment each other . Do you know you can detonate at 5 psi of boost , (before your WI activates) , I did !!!!.

Slides+

This thread looks like it went off course a fair bit (and flicking though the first few pages I found things that were technically incorrect regards laws of thermodynamics/power/flow etc), but I would like to point out, based on argument regards IC/WI on this page:

Unless you are running a lot of meth injection pre turbo to drop post compressor temps close to ambient anyway, if you look at the additional turbine energy required to lift final intake density to the same level, at 1 bar + based on no intercooler & 70-100+ deg C vs intercooled 25-60 Deg C, ie quite a few PSI more boost to match density (if aiming for similar torque), you will see that the system is more efficient, and you will make more power (with the same air, so higher output on any given turbo running to choke or close to it) running an effective intercooler than just water alone, albeit your combustion will be perfectly stable without one if WI is set up correctly.