Hello,
i am new to the forums. I have been experimenting with different setups on my 03 mazdaspeed turbo for a few years now. I have had every possible external mod on the car, ive had it near stock and everywhere in between lol
With my last setup (14psi, fmic, 3" turboback, WI etc) I detroyed the transmission and LSD in 1 night of fun. Going WOT in 3rd gear going 100KMPH and the tires would light up and chirp 4th lol lots of power and fun. Best stock motor MSP I have ever seen
Rebuilt the trans with a torsen LSD to handle the power better then the first one did and replaced motor due to rod bearing failure from poorly baffled oil pan. (I like the turns lol .91G on skidpad

)
I am using (please,please dont ban me I am a good guy LOL) a different brand of WI kit then everyone else on this forum, but it appears to be the same as the basic kit sold here minus the stickers. (though I should point out i did pay more-stupid me, wish I found this site sooner-SERIOUSLY)
During my trials with WI I noticed that the #1 cylinder will never get a proper distribution of fuel from the KIT. I was injecting with 1 nozzle right at the throttlebody and due to the weirdo " C " shape of the IM and its internal working components (VTC, VICS) I dont think the WI mixed properly in the manifold causing high EGTs, cylinder temps, detonation etc from the #1 cylinder.
Now that I have a spare IM to play with, I took a shitload of brass fittings and made an inexpensive fuel rail and ran a WI line for each port so that the kit is now an INDIVIDUAL port methenol injection system.
here is a pic if you guys wanna fab up your own fuel rails for under $20. Got all the nice fittings.
To finish the project, all I need is 3 more actuators, 4 nozzles and a way to figure out the best distance to have each nozzle from the port on the cylinder head. I am thinking 3-5 inches is the way to go, but I am scared having it so close may disturb the mixing of fuel from the normal injectors.
I am also unsure what size nozzle to be using on the kit. I am looking to keep the stock 230cc fuel injectors in place and then provide fueling via the kit for an additional 100-200WHP worth of fuel over the stock 230CCs.
Stock injectors are maxed at 10psi, 5500RPM. 12psi ~4000-4500RPM etc. So From what I have see roughly 190-220WHP.
I am looking to boost 16psi in the near future with the stock T25R BB turbo, maybe 22 or so when I upgrade the exhaust side with components from a T28 and port the housings nicely.
Wondering if anyone has some advice for my setup, particularly what size of nozzles, and whether or not I would be able to pull of a decent tune with the
Progressive Controller sold here with my setup, rather then have to go buy YET ANOTHER damn expensive EMS. I removed my FMIC as I am now going for a complete stock sleeper look, so I may need a bit larger nozzles to help cool the charge. My current nozzle from my old setup is apparently good for motor running up to 250WHP. I am unsure of the actually flowrate. Any help on sizing and reccomended mixture to run would be great.
Also, the
Progressive Controller says it can work off voltages, so it would work fine with my 0-5V MAF? What happens when the MAF gets maxed? I have a device preventing this that keeps the voltage at 4.8-4.9 during WOT to prevent hitting fuel cut. I am guessing I would just lean out after this as the controller would no longer be increasing the pressure since the voltage stops increasing.
Could I just hook up a MAP sensor to my IM and have it run nothing but the
Progressive Controller since I NEED to have a MAF on stock ECU.
Sorry for all the ramblings and what not, hope someone here can give me some real world advise.
Thanks for your time, Jeff