[cnv]

Hi

i have been looking at adding water injection to my Miata with JRSC M45 with PWR A/W charger

Am trying to find out if to go with the standard kit or progressive kit

Cnv

[pacemkr86]

welcome to the site..

i perfer the progressive kit

[Sharky]

I have the same setup you have. I tried the A/W setup as well as the conventional intercooler setup. I experienced severe lag due to the extended intake tube. I also saw heat soaking after extended runs. I then tried the DO WI kit and got good results. I am currently running the DO kit without an intercooler of any kind. I put the nozzle in the bend between the AFM and the throttle body/supercharger. I run a 50/50 mix and am very happy with the results. I am planning to switch from the M1 nozzle to the M2 nozzle just to see what the difference makes.

[Sharky]

Sorry, I forgot to answer your question. I now have the Progressive Controller in the car. I have not had it long enough to give a good evaluation of it. I did try the kit using a pressure switch and it worked well. When I first installed the kit, I had problem locating a 2 bar MAP sensor and the connector. So I ran the pressure switch. I finally got a GM 2 bar MAP and the connector. I recently installed the Progressive Controller. So far I have not seen an improvement. But then again, I have not had the time to adjust and log the various settings. I want to try a larger nozzle and see how much adjustability I do have at that point. I suspect that with my current setup, I am using the full capability of the M1 nozzle already. So my guess is that I may need to switch to an M2 nozzle to see any improvement. I am going to install a better intake temperature probe and gauge to log my intake temp changes.

Let us know what you think after you install the kit.