What's up fellas?
Well the title says it all. Has anybody ran water or 50/50 injection without a tune? The reason I ask is because I don't want to buy a pfc. No im not being cheap, I just don't drive my FD that much. When I do drive it, it's usually on the weekends but its pretty warm here in cali. Occasionally i'll take it to do some autocross.
Yes i did search but didn't find anything specified no tune or if it's safe.

 

No problem doing so. Get the AEM kit, it's very reasonably priced and will give you a nice margin of safety and extra cooling.

Dale

 

You will probably make less power. If you shoot ALOT you might have ignition break up. Either way, good job on deciding to pony up on WI. Probably one of the best mods I've ever done.

 

^Agree. But with a properly sized nozzle (see sticky in the AI section) you shouldn't have break-up on the stock ignition or noticible loss of power. IIRC, HC recommeds the nozzle be after the IAT so it doesn't mess with maps. I would think that would also apply to the stock ECU. So you might want to relocate the IAT upstream and out from under the UIM. Less heatsoak anyway.

 

I've heard about the IAT relocation before but haven't gotten around to doing it. How far upstream would you have to place if I inject water? Also on that note, would I be restricted to only using water? Could I use a mixture of water and meth to make up for the water being used? Like a mix of 90/10 or 80/20? A relatively small amount of meth.

 

Done it for years on several different FDs with almost your exact setup except I usually run the Pettit ECU.

If you are still sequential you will need to run the smallest nozzle offered by AEM. Unfortunately their new kits only offer their mid size and large nozzles so you will need to order the one you need separate. Off top of my head I cant remember the CC that it is. If you are running non sequential you can get away with running the midsize nozzle if you set it to come on around 7-8psi. The mid size nozzle is simply too much water for the amount of air you are moving on the primary turbo at low rpms as it hits 10psi extremely low in the rpm range.

AEM kit is very straightforward and has everything you need to install minus a 12 guage power wire and terminal. Can be installed in about 4 hours and if you have a touring model with the rear windshield wiper tank and dont remind removing the spare tire you can have a very sleek install that is practically unnoticeable.

 

This is where I placed mine a few years ago. No issues. You can also see where I put the IAT in the intake tract...green sensor visible just to the right of the alternator.

 

I'm still running sequential turbos right now. I actually called mazdatrix about doing non-seq and they advised me away from that route lol. Another things bout that is im running on stock waste gate boost, so I only see 7 psi. The previous owner had pettit bypass the turbo/wg solenoid.

 

AWESOME!!! I'll definitely be going this route!!

 

You should be safe running 12lbs on the M2 ecu, safe at 14-15lbs with the water/meth installed. You are really missing out on fun keeping it at 7psi. Order two Hallman RX Pro manual boost controllers and follow Damien's thread for a proper setup. Im not sure if he mentioned it in his thread for boost control but also block off the nipples in the 3 oclock position on the wastegate actuators for much better boost control with the manual MBCs installed.

 

I know it man! It sucks! I have the solenoids but don't know how to install them. Haven't looked up the diagram yet.