Air Fuel Question

8

88 5.0 hi perf

New Member

Mar 30, 2005

34

0

0

May 12, 2005

#1

• May 12, 2005

• #1

is anyone running a gt40 intake and bigger throttle body with stock mass air and injectors? i want to put the intake and 65mm tb on but dont know if lean fuel will make it run bad or unnefficient until i have enough cash to get the mass air and fuel injectors.any help or advice will be appreciated.

 

8

88 5.0 hi perf

New Member

Mar 30, 2005

34

0

0

May 12, 2005

#2

• May 12, 2005

• #2

Anybody There?

 

M

Mstg05

Member

Nov 23, 2004

103

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16

Delaware county, pa

May 12, 2005

#3

• May 12, 2005

• #3

Do you have any other work done? If not, the stock MAF and injectors should be sufficient for now.

 

8

88 5.0 hi perf

New Member

Mar 30, 2005

34

0

0

May 12, 2005

#4

• May 12, 2005

• #4

Just At Flows I Just Put In, Ill Be Ordering Ud Pullies And Msd Coil W/ Taylor Plugs Today

 

jb89coupe

New Member

Sep 3, 2004

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CT

May 12, 2005

#5

• May 12, 2005

• #5

Your injectors are fine, you may want to upgrade your mass air sensor though. It'll run fine with the stocker, it may just restrict the airflow a bit.

 

TheRedBlur

Active Member

Jul 7, 2003

15

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38

seattle

May 12, 2005

#6

• May 12, 2005

• #6

well, don't worry so much about lean. the computer uses teh MAF and 02 sensors to calibrate A/F ratio. it reads X amt of air going in motor, and uses the 02 sensor to see if it pumped enough gas in. if it reads lean, then more gas. you will run out of gas at 5k plus where the stock injectors fuel pump dont really work so well, but with stock heads and cam, you will be fine.

 

B

BaXTeR3221

Member

Jan 12, 2004

917

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16

Orange County, NY

May 12, 2005

#7

• May 12, 2005

• #7

What he said. The computer won't let you go lean until you reach the limit of the injectors, which you wont probably until you add a set of heads or forced induction.

 

jb89coupe

New Member

Sep 3, 2004

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CT

May 12, 2005

#8

• May 12, 2005

• #8

I run powerheads (220cfm+ heads), ported gt40 intake, and a 100 shot of nitrous (DRY) and have never leaned out with my 19's. People underestimate their capabilities.. don't worry about the injectors unless you go with a big cam or a supercharger/turbo setup.

 

8

88 5.0 hi perf

New Member

Mar 30, 2005

34

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0

May 13, 2005

#9

• May 13, 2005

• #9

thanks for the helpful advise guys. i guess ill prob go with the bigger maf, and fuel pump since i dont need the injectors yet.

 

TheRedBlur

Active Member

Jul 7, 2003

15

0

38

seattle

May 13, 2005

#10

• May 13, 2005

• #10

just check your plugs regularly. if they're white, you're in trouble. I couldn't get a good dyno run back in jan because my motor was fuel starving, wouldn't rev past 5100. that was with the stock pump.