Fuel pump and injector sizes...

[My91TalonTSi]

After some recent issues with fuel cut Midnght suggested that I get some fuel mods going.

I have the bare basics done to my car now...full 3" turbo back, 2.5" O2 housing, Dejon inake, boost controller, and gauge.

His suggestion was upgrade the fuel pump, injectors, and get an AFC.

In regards to the pump and injectors is where I'm having trouble deciding. Eventually, when I have the cash, I will upgrade the turbo to something *fairly* big. My goals are to get my car into the high 300hp range....like 380 to the wheels. What I would like to do is get the fuel mods to support 380hp even though I cannot use them yet in hopes to save myself some cash down the road. I would like to avoid getting 550cc injectors now if I need 750's later on.

So my question is, is this possible? If I need 750's(this is just for example) to support 380hp can I also use them on my car now that is in mid 200hp range?

What injector size would be good for 380hp?

Also, I think the Walbro 255 would be the pump I need for the future turbo. Does this sound OK?

And in case this is relevent, the car will mainly be a street car running 93-94 octane pump gas.

Sorry for all the questions but once I get the 'go fast bug' its hard for me to stop

Thanks.

 

[me612]

You can get em as big as you want as long as you have some form of fuel control like an AFC or anything like that which will allow you to lean it out with bigger injectors. Here's a link to a nice little graph RRE made to help people chose which injectors to run.

http://www.roadraceengineering.com/eclfuel.htm

 

[My91TalonTSi]

Nice graph...thanks

 

[DSMeclipse4G63]

EVO3 b16g, 600cc range injectors, SAFC, and either a 190 or 255 pump with suffiecent boost(like 20-24psi) tuned youll reach around that. Throw some cams in and youll be right on the nose if not well over.
Andrew