starts breaking up at 4500 rpm.

Mike Pearson · 10-21-2015, 10:38 AM

Doesn't fuel injection take a higher pressure pump than a carb car or is there just a difference in the regulator. I was under the impression that fuel injection needs a lot more pressure than a carb

MikeMoller · 10-21-2015, 11:44 AM

Quote:

Originally Posted by Mike Pearson

Doesn't fuel injection take a higher pressure pump than a carb car or is there just a difference in the regulator. I was under the impression that fuel injection needs a lot more pressure than a carb

Agree - injectors need a lot more fuel pressure to work properly, and it needs to stay high under load.

ALMACK · 10-21-2015, 12:01 PM

40 psi for efi vs. 7 for carb.

10-21-2015, 10:38 AM	#1
Mike Pearson VIP Member Join Date: Mar 2007 Posts: 2,417 Likes: 597 Liked 1,880 Times in 562 Posts	Re: starts breaking up at 4500 rpm. Doesn't fuel injection take a higher pressure pump than a carb car or is there just a difference in the regulator. I was under the impression that fuel injection needs a lot more pressure than a carb __________________ Mike Pearson 2485 SS

10-21-2015, 12:01 PM	#3
ALMACK VIP Member Join Date: Jan 2009 Location: Bardstown, KY Posts: 1,927 Likes: 121 Liked 347 Times in 123 Posts	Re: starts breaking up at 4500 rpm. 40 psi for efi vs. 7 for carb. __________________ Alan Mackin Stock 3777/ SS 3377 P/SA & SS/PA Fox Thunderbird I/PS '95 Mustang GT