smrx8

iTrader: (1)

Charles r. hill i spoke to zex directly and they told me that people did install the kit( 82021) on the rx8 in fact he said a couple people did with no problems there using a 55 shot with no mod. on the engine the only thing he told me was they changed there spark plugs about 2 step down in degrees.he said anything above that i would run into major problems with the computer. 638.00 for the complete kit. not including the spark plugs is he bull sh@ting me. or what

Floyd

That sounds like the dry shot set up to me. Not as safe as a wet shot i guess from prior posts. There were some great posts from RotaryGod about 6 months back about dry vs. wet set ups I just forget the details. (searches are pretty cool)

Charles R. Hill

iTrader: (7)

Thanks for the info. That may save me a phone call. I still wonder what was meant by problems with the computer(ign. timing?). If I leave the rich factory maps in place could ignition retards be unnecessary? Here is my position on how much nitrous the Renesis can handle: by listening and reading about the successful turbo projects done by others it has been proven that the engine can handle, thus far, 5 pounds of boost rather easily. This translates to 80 h.p.+/-. At this point there are some projects where the boost levels are higher than that. That is good news. So, when I finally decide to commit to a particular nitrous setup it will start in the 75 h.p. range. As I listen to the engine respond to it, I may go to 100 h.p. or more. I have a long-range plan for this car, as well. When I get to 50K miles or more I will then have the engine gone over and whatever technologies are available at that time will be considered. At this point I am really not much interested in FI. It seems that most are going in that direction and I wish to be a bit different in my approach. That's why I bought the RX-8 in the first place. One, because it is a very unique car and two, to eventually hot rod the Hell out of it. I know I have made some wishful proclamations and promises and I am fearful of developing a reputation around here, but I like to slowly consider my steps throughout this process. The titanium ppf and header are still on the project board at this time.

Charles

smrx8

iTrader: (1)

He said it was a wet system and yes when you go up to a 75 shot or higher you will have to work with the ignition timing thats were you will run into problems .ill see what they tell me at the performance shop i take my car .they will be working on my stage 1 maps.

snap-on

Actually the system is not monitored OR controlled by the PCM.

The pressure regulator is a simple spring and diaphram incorporated into the fuel pump unit. It releases pressure back to the tank when the pressure exceeds 56.6 psi..

rotarygod

I too had always thought that it was computer controlled but I am glad it isn't. Somehow that seems so simplistic that it's brilliant.

Charles R. Hill

iTrader: (7)

So when does the pressure exceed 56.6 lbs? How much does the pressure vary throughout the rpm/load range? It seems an awful lot like every other pressure regulating system, at least in principle. But, I find it to be good news, in a way, that the fuel system is not as complicated as I thought. Onward with the nitrous project!!

Charles

Charles R. Hill

iTrader: (7)

Here's an idea for getting around the ignition timing issues when using nitrous. How about installing a stand-alone fuel delivery system which consists of a 5 gallon fuel cell and adequate fuel pump and lines to deliver fuel to the fuel solenoid on the nitrous system. In this 5 gallon cell I could put 110 octane obtained from my neighborhood Sunoco station. When I activate the system w/the switch a relay will activate the fuel pump. A pressure safety switch could turn the rest of the nitrous system on when the proper fuel pressure is reached. This way I don't need to deal with the ignition maps and could see the optimum performance in both regualar and nitrous modes.

What do you guys think?

Charles