Ok, finishing up my fuel system and I'm at the injectors.

Current Fuel System:
I have a 400lph Bosch pump
8an line to fuel pump from cell
6an line to rail
FPR
6an back to cell

Motor Specs:
12.5:1
Stock bore and stroke
IPS KMe Cams
SSR Header/exhuast (megaphone)
RBC Manifold
3" Intake and velocity stack

Engine Mgmt:
K-Pro


Now, I'm taking a guess that C-16 will be my fuel of choice (I'm not ready for meth) if that doesn't sound right for this motor, let me know.

On to the injectors. I was thinking 550cc but I want to be able to support the motor when I go bigger displacement and higher compression. So, do I go with 650 or 750's? Will 550's serve the purpose and be able to run with me with future upgrades? Will the 650 or 750's be too big for my motor and K-Pro to work effectively with?

If I sound dumb...please bare with me, I am. Just trying to get a good understanding so I can help some noob years down the road.

Thanks guys,
Steve

 

go with 750cc, trust me ...
these motors suck lots of fuel, lol

 

So you don't think that 750s are over kill on an NA motor making a little over 300whp?


Steve

 

nope, plus you can run low pressure so pump doesn't heat up fuel ... i run 90 lb inj for conv to alky

 

wouldnt you get a better spray pattern with more pressure ?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dturbocivic &raquo;</TD></TR><TR><TD CLASS="quote">wouldnt you get a better spray pattern with more pressure ?</TD></TR></TABLE>

I think its all theory, we've tried this on the dyno at great length and the best we got was better midrange from lower pressure, so difference between 35psi and 60psi and tuned for both seemed to be better midrange.

Greg

 

Motor Specs:
12.5:1
Stock bore and stroke
IPS KMe Cams
SSR Header/exhuast (megaphone)
RBC Manifold
3" Intake and velocity stack

Are you using stock sleeves with this build

If you are good luck with that (I dont know any thing first hand) but I would think that the pressures that the sleeves would see would crack them... not trying to be a dick or anything just wondering cause if they will last that is one less thing I have to worry about when I go to do a similar build when I get back from Iraq

 

The stock sleeves should be good at this compression. Anything higher (besides needing a larger bore) would need to be sleeved.

Steve

 

750cc... if you need some give us a call we stock every size injector imaginable..

 

If I decide to run Ethanol or Methanol will the 750's be ok? I was thinking of using 1000cc's with Ethanol or possibly methanol.


Steve

 

Hey Steve I think you should set up the car for Street Stock

 

Yeah, right. Get me a new chassis and we'll talk.

Steve

 

use 1000cc or 1600cc on meth...