Help on tuning 30 LB injectors in my 5.0

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pierce.nathan

New Member

Feb 17, 2010

2

0

0

Feb 17, 2010

#1

• Feb 17, 2010

• #1

First off I have no experience on tuning vehicles when it involves upgraded fuel injectors. My mustang contains the following:

185cc intake 70cc exhaust aluminum cylinder heads
cold air
75mm throttle body
bbk ssi intake manifold
E303 Cam
1.7 roller rockers
255 lph pump
35-70 psi adjustable fuel regulator
30 lb injectors

I don't know if the 30 lb fuel injectors are too much, but I thought that I might be able to just lower the fuel regulator to lessen the injectors. Any information would help. thanks

 

vristang

15 Year Member

Mar 31, 2005

4,933

101

124

Seattle

Feb 18, 2010

#2

• Feb 18, 2010

• #2

Get a calibrated MAF or tune the ecu with a chip.

You won't correct for 30's with the fuel pressure....

 

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pierce.nathan

New Member

Feb 17, 2010

2

0

0

Feb 18, 2010

#3

• Feb 18, 2010

• #3

I have a BBK 76mm MAF which is calibrated for cold air and 30 lb injectors. Is that really all I have to do? What should I set the fuel regulator to? I know that at stock for my car, they are set to 39psi

 

vristang

15 Year Member

Mar 31, 2005

4,933

101

124

Seattle

Feb 18, 2010

#4

• Feb 18, 2010

• #4

Yep, set it to 39psi.
You shouldn't have to change it...

 

2

2002BLGT

Well-Known Member

Dec 18, 2003

2,945

4

59

Bedford VA

Feb 21, 2010

#5

• Feb 21, 2010

• #5

If you can get the air/fuel checked with a wideband just to make sure the calibration is good on the meter , they are not always 100 percent perfect out of the box