i already have a Mugen header, Megan resonated test pipe, and HKS Hi-Power. i plan on keeping this setup after i install the SC. would i be able to run this and just adjust the FPR and still run safely without the risk of damaging anything? or would i need to get an EManage? (i don't want a VAFC or EMS). also, would i still be able to pass emissions with the EManage (is it piggyback)? i don't plan on upgrading injectors, fuel rail, or any other parts of the fuel system (other than fuel pump which is included in the kit), and i want to intrude as little as possible while still maintaining good reliability. as you can see i am a n00b to FI so any other suggestions or comments would be greatly appreciated. also what are some reliable/not too intrusive setups you guys are running with the CTSC+AC?

 

it all depends on your car... my car for example, 2000 with stock everything and ct sc + ac with the stock pulley.. my fuel pressure is pretty much maxed out and i'm still lean in the 6000-7000 RPM range.

if i were to add test pipe, exhaust and a header i would definately be dangerously lean.

so really, you can put on your kit but i would get it dyno'd before you give it full throttle so you can make sure your AFR ratios are good and you aren't going to damage your motor. only way to alleviate this problem is to get some bigger injectors and some type of fuel management to control them. aem's new FIC looks like a good solution paired with some bigger injectors and a fuel pressure regulator.

 

^^could i get an EManage without the injectors and still be able to get the AFRs safe?

 

You don't need EMS or any form of piggy back for headers, pipe and exhaust with the stock kit. The CT FPR can be adjusted during tuning if that is what your asking.

 

^^ I disagree, as with any rising rate FPR (not the best way to regulate fuel pressure) it really depends on that particular car. I have installed many superchargers for guys in the Mid-A area and have found each car runs different (lean to rich), wether its Vortech or Comptech. Running a test pipe plays a large part on where you will be on the scale, more than likely you will probably have to run a piggyback. The car will still be very reliable and emissions legal with the piggyback. From past experience with Comptechs FPR and Vortechs FPR each one almost always needs to be adjusted to fatten up your AFR when running a test pipe.

 

If you want to try to just adjust the FPR, go ahead, but if you have plans to up boost, get an EMS/piggyback (<---would buy).

My car got real lean once the TP was added, but turning the Comptech FPR, we were ok. But another person had the setup and have to had ems/piggyback. I went up in boost and obviously needed EMS.

 

Isn't this the same thing I just said??

 

Get rid of the test pipe and put the cat back on. You will be good to go throughout the PWRBND and you will be fully emissions compliant to boot.

 

thanks guys. this thread has helped a lot! i think i'll leave my test pipe on and see if FPR adjustments will suffice. if not, i'll get an EManage. for emissions i will swap my cat back on the day of, then put back my test pipe when i get home.

to QUICK AG--your name has come up more than once in my FI discussions with other Mid-A members and they all have good things to say about you. if i need some assistance i'll be sure to get in contact with you!

 

If you end up needing any help feel free to contact me.
To clarify about the FPR's, I guess what I was trying to explain was that with a test pipe you will more than likely be lean, even with the FPR maxed out at some point in the RPM band. Most I have installed and been on hand at the tuning they have run lean when running a test pipe. Hope this makes sense-most have addressed this issue before with a piggyback. Anyway good luck.
Matt