I'm a noob when it comes to tuning the 4g63, so I thought i'd ask before i blew up my newly rebuilt engine. Ok I know the stock fuel system can handle about 14-15 psi, but with an upgraded fuel pump, and fuel pump rewire how much boost can the stock injectors handle? While I'm at it what size are the stock injectors? Thanks, Shawn D.

93 Tsi AWD-SAFC I, Apexi N1 turbo back, MBC, K&N w/ hacked can,
Walbro 255, Accel wires, 650cc injectors, stage 3 dsmchip

97 Neon ACR-Stock

450's are stock.

You can run 18 psi on the stockers as well with the 255 fuel pump and rewire (with a stock 14b that is)

It's running again shitheads.

http://www.dsmregistry.com/detail.php?carid=791

HybriDSM@gmail.com ; HybriDSM@hotmail.com

Think for yourself. Question authority does not always mean disagree with authority.

If life were perfect, I'd be Calvin and you'd be Hobbes.

18psi like Hybrid said, but you will need an SAFC to bump up the fuel a bit.

what theyre really tryin to say is... buy some 550s.

Travis
************
Blue 93 Talon AWD
Best Time 11.9 w/ 104 octane
-Objects in mirror are getting thier asses kicked-

Ok, how far will a 255 fuel pump and rewire, with an safc take me? By that I mean i'll be able to run 18 psi safely won't I? Thanks, and sorry for the noobness. Oh, and let me know what you think of the first mods i want. I WANT to go with a full 3" turbo back exhaust with no cat(I live in missouri no emissions testin ), an SAFC, 255 Fuel pump(what brand is reccomended), a MBC. And i'm hoping i can do this all for under $1100, so what do you think, and what order should i get everything? Thanks guys, that's what I like about this place you're willing to help without flaming, most of the time.

93 Tsi AWD-SAFC I, Apexi N1 turbo back, MBC, K&N w/ hacked can,
Walbro 255, Accel wires, 650cc injectors, stage 3 dsmchip

97 Neon ACR-Stock

Originally posted by sd240
Ok, how far will a 255 fuel pump and rewire, with an safc take me? By that I mean i'll be able to run 18 psi safely won't I? Thanks, and sorry for the noobness. Oh, and let me know what you think of the first mods i want. I WANT to go with a full 3" turbo back exhaust with no cat(I live in missouri no emissions testin ), an SAFC, 255 Fuel pump(what brand is reccomended), a MBC. And i'm hoping i can do this all for under $1100, so what do you think, and what order should i get everything? Thanks guys, that's what I like about this place you're willing to help without flaming, most of the time.

It's running again shitheads.

http://www.dsmregistry.com/detail.php?carid=791

HybriDSM@gmail.com ; HybriDSM@hotmail.com

Think for yourself. Question authority does not always mean disagree with authority.

If life were perfect, I'd be Calvin and you'd be Hobbes.

Yea sorry I forgot to add, I already have an autometer boost gauge, and egt gauge.

93 Tsi AWD-SAFC I, Apexi N1 turbo back, MBC, K&N w/ hacked can,
Walbro 255, Accel wires, 650cc injectors, stage 3 dsmchip

97 Neon ACR-Stock