Injector Size ?

J

Jmunk

Member

Sep 30, 2007

95

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Jun 17, 2010

#1

• Jun 17, 2010

• #1

I am putting together the following combination looking for suggestions on injector size.

306 bottom end
gt40 heads milled about 20 thou, upgraded dual springs
e cam, I know not the best. I have 1.7rr I may put on it.
edelbrock performer intake
70mm TB/Egr plate

Guy who built the motor said the compression is 10.5:1

Backed by a T5

I am on the fence as to use the 19's or 24lb injectors. Suggestions?

 

87GT Drop Top

Member

May 1, 2009

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South Florida

Jun 17, 2010

#2

• Jun 17, 2010

• #2

You could probably get away with the stock 19lb ones, but 24lb would leave you room for error.

 

tannerc91gt

This last 25% is foreign territory at this point

Founding Member

Nov 29, 1999

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Jun 17, 2010

#3

• Jun 17, 2010

• #3

19s will be fine (i doubt you'll max them out) but 24s give you some room to grow

 

f8tlfiveo

My wife likes my spool and blow-off valve.

Aug 8, 2007

1,585

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Lancaster, PA

Jun 17, 2010

#4

• Jun 17, 2010

• #4

I would go with the 24's just for breathing room..19's would prob be fine up to 300hp though

 

J

Jmunk

Member

Sep 30, 2007

95

1

6

Jun 17, 2010

#5

• Jun 17, 2010

• #5

The car will have the usual bolt on's, but this will pretty much be the combo I will run. Not looking to add much after I drop the motor in.

 

LowOnFuel

New Member

May 16, 2010

24

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2

Syracuse, NY

Jun 18, 2010

#6

• Jun 18, 2010

• #6

injectors

I would go with the 24's. I know it was overkill but I had 30's on my last 5.0. The car pulled like a beast and I had alot of room to grow if I needed to. Don't 93 Cobra's even come with 24's?

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,173

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Massachusetts

Jun 19, 2010

#7

• Jun 19, 2010

• #7

They do.

I would go 24's myself

 

J

Jmunk

Member

Sep 30, 2007

95

1

6

Jun 19, 2010

#8

• Jun 19, 2010

• #8

I hear a lot of people bash aftermarket MAF's, and alot of others say their fine. Whats the thoughts on the MAF to use with the 24's.

 

tannerc91gt

This last 25% is foreign territory at this point

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Nov 29, 1999

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Jun 19, 2010

#9

• Jun 19, 2010

• #9

I have a 76mm C&L MAF, never had a problem

 

Pokageek

Active Member

Jun 10, 2005

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MA, USA

Jun 19, 2010

#10

• Jun 19, 2010

• #10

24# are more than enough but prolly the ideal size.