Impreza2RX7

I ordered a FCD, Corksport 3" catback, Racing beat 3" DP, and I'm going to make a 3" midpipe for my car. I also ordered a K2RD ACV Block off plate and dual belt alternator pulley. SHould I be fine with these mods, or will I need an upgraded fuel pump or larger injectors? With these mods and also removing my A/C, Smog, and P/S, how much HP do you guys think I'll make? I also plan on porting the wastegate on my factory turbo to try to avoid boost creep.

Jaared

get a walbro asap with that setup. some say you will need 720cc secodaries.. some will say you need a safc.. or Fcon. Then you have the people screaming that you HAVE TO HAVE A EMS just to drive it. so if money is not a problem then get a $1200 ems and get it installed and tuned for more $$$ and you will be good.

if im not mistakes you will make all kinds of boos with that setup and you need some way to add that extra fuel in. without a controller and the needed fuel pressure you will run hella lean and kill it.


as for me i went with the HKS FCON with FCD, walbro 255 (ebay for 89.99new), 3" turbo back, and cone filter(kept stock TID to keep boost down just enouf to keep the stock IC for now. Im looking into water injection for that added security.

jaared

dr0x

You can use just the walbro as long as you dont go over ten, id stay around 9. Get an safc if you want to boost to 12. Probably 220rwhp @ 10psi.

Impreza2RX7

Cool, I guess I'll wait until I can order a Walbro, Haltech, and some larger injectors to put these parts on. I was planning on getting a standalone after buying a Koyo Radiator, Black Magic E-Fan, and a FMIC, but I guess I can save and get it first.

dr0x

Microtechs are cheaper than haltechs. Maybe soemthing you want to look into.

http://www.br7racing.com/

Impreza2RX7

Can I just put on a DP, catback, and FCD on for the time being and leave the factory cat in place?

Scott 89t2

your first problem is the corksport catback (and any catback) has a 2.5" flange. so either you need to make a 3" to 2.5" midepipe. or cut some of the catback off to were it is 3" and put on a new flange. then make the mid pipe longer.

other mods are 100% dependant on the boost. if you port enough. and can keep the boost under 8psi then you don't need anything. if you hit 10. get a fuel pump.

Impreza2RX7

No, its not, CS has a full 3" CB now.

Scott 89t2

the 3" RB downpipe won't connect to anything.

Impreza2RX7

Ahh, ok..

Impreza2RX7

I guess Ill have to put in a fuel pump, port my wastegate as much as possible, and go to a dyno to see what my a/f is..

Scott 89t2

oh cool. must be brand, brand new. I just checked it out.