19lb stock injectors w/ supercharger??

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PRO50SC

New Member

Dec 28, 2003

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Olney, Maryland

Jan 22, 2004

#1

• Jan 22, 2004

• #1

Aftermarket superchargers owners read this!!

Anyone running the stock 19lb injectors with a supercharger without any drivability problems?
I'm running a Procharger w/ 9psi boost, 3 core intercooler and the stock injectors. Problem, high speed flat spot at 4000 rpm's under 3/4 throttle. I can drive thru this problem under full throttle. Anyone been thru this before. Otherwise the car runs fine.
Thanks.

 

Blk91stang

Member

Jan 3, 2003

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16

North Brunswick, NJ

Jan 22, 2004

#2

• Jan 22, 2004

• #2

I am running stock injectors with only 5pi of boost through a vortech SC-Trim and have no drivability problems. I cant tell you why you have the flat spot though? I was told I was on the edge with stock injectors and 5psi and you have 9psi of boost.... go figure? I couldnt see it being ur injectors since ur car runs fine WOT.. Beats me man lol

 

Flash1966

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Aug 24, 2001

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Orlando, Florida

Jan 22, 2004

#3

• Jan 22, 2004

• #3

I ran the 19 lbers on my S trim for several months, dynoed at 300rwhp with them. Just need a good tune. Don't know about the flat spot though, but the injectors can handle it, pretty close to the limit though.

 

Jkstang78

Founding Member

Oct 14, 2002

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long island N.Y.

Jan 22, 2004

#4

• Jan 22, 2004

• #4

I am going to say that 9lbs of boost is to much for stock injectors. What kind of fuel pump you runing. If a stock one then junk it for a 155 or bigger and I would get 24lbs injectors to.

 

gaslight

Founding Member

Jul 12, 2000

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99

Maine

Jan 22, 2004

#5

• Jan 22, 2004

• #5

Flash1966 said:

I ran the 19 lbers on my S trim for several months, dynoed at 300rwhp with them. Just need a good tune. Don't know about the flat spot though, but the injectors can handle it, pretty close to the limit though.

Click to expand...

what psi were you running?
I had 280rwhp with no power adder.

 

P

PRO50SC

New Member

Dec 28, 2003

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Olney, Maryland

Jan 22, 2004

#6

• Jan 22, 2004

• #6

Jkstang78 said:

I am going to say that 9lbs of boost is to much for stock injectors. What kind of fuel pump you runing. If a stock one then junk it for a 155 or bigger and I would get 24lbs injectors to.

Click to expand...

I have a 255 lph holley in the tank and a high flow external to help feed the charger.