Hey I want to know if the M2 stage 3 ecu can control 1200cc secondary's injectors or I need to buy the Apexi power fc. Please someone with a very good mechanical ablity or someone who perform work on they own car please respone, No I am not knocking some of u guys but I have seen some stupid answer's for other's Questions. Also I am not saying that I am btter than the average guy. thanks

 

Nope, stock (even Remapped ecu) won't handle bigger injectors. Power FC or Haltech time.

 

you could run em. you will just run really rich, and you will have no way of actually controlling the injectors. the injectors will be injecting as much fuel as they can, but the ECU wont notice it.

 

yeah like he said, so time to get a PFC.

 

I had the Pettit unlimited ecu before the PFC and when I ordered it I clearly asked if I could run bigger secondary injectors with it and I was told yes, but when I called back after I had purchased my 1300cc secondaries they said "NO, it won't work!" I was kinda disappointed, but I'm used to it by now. I would advise against installing the bigger injectors with your ecu. I don't think you would damage anything, but I would imagine that it would run like crap!

 

oh. but what is the reasoning behind why it wont work? i dont think anything else besides running a little rich would occur.

i dunno.

 

only 450cc to rich
thats like 50% more fuel, with no useful map..youd foul plugs quick as hell, wast mad gas......get pfc or haltec, its not worth the motor to just take a chance

 

DAMNIT~!!!!!
I swear EVERYONE I ASKED BEFORE I BOUGHT MINE SIAD THEY WOULD DO IT!!! Someone even said it would work with a single turbo! DAMNIT! Now im pissed.. I could have had a good deal on a haltch!

 

Want2race, I feel your pain man. The same crap happened to me so I know what it's like to be lied to. I would have never believed that I could run a single turbo with it, but I did believe that I could run bigger injectors since that isn't too hard to program a computer to do. Different maps, duty cycles, etc. , but it doesn't work. I was really pissed when I found out that I had been lied to and asked for some explanation of why it wouldn't work. The only thing they said was that they couldn't adjust the pulse timing of the injectors on the stock computer. I'm not 100% sure, but it sounds like a bunch of crap to me. Either way I was forced to get rid of it. You were lied to by a dishonest person, but I was lied to by a dishonest "company". I don't want to bad-mouth Pettit though, since I think they sell excellent stuff. They should just get their facts straight sometimes.

 

so i guess the only downside to having larger injectors and a remapped ECU is just running really really really rich??

 

I had the 1200 secondaries installed in my car using a Pettit Unlimited ECU and what I did was go to a dyno and tune it with an APEXi S-AFC, I tuned it down little by little until it was right, it worked fine at WOT, but I never got the chance to drive the car around because I went Power FC 2 days later, so I can't speak on the driveablility on this setup, but I know at WOT it works perfect. Just my 2 cents.

 

Rich=No power and buildup!
Yuck

 

yeah, running a Pettit ECU with a piggyback fuel controller is one option. but thats kinda stupid, imo, cause a PFC is only a couple hundred bucks more than that combo. you still need dyno tuning and everything, so whats the point??

 

noo....i dont want this thread to die.

anyone else have any input??

 

JoeD...stop it...running really really rich is a bad as running lean.. I have personally seen the results of running really rich...and it is not pretty...

I repeat do not run 1200CC injectors with out a haltech,wolf,PFC,motec...etc you get the idea.