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Discussion Starter · #4 ·
Wow! I thought these motors got like 12mpg? thats actually pretty dam good!


Will it mess my gas mileage up or help it. i have a GT 40 explorer intake mani and 70mm BBK throttle body and adjustable fuel pressure regulator at 42lbs Idle and a pretty bad exhaust leak on passaenger header? lol


0 && ford racing roller rocker arms.
 

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The ehaust leak can hurt, it gives a false reading to the 02's, which is normally a lean reading, so the ECM adds a tad more fuel.

In general, the more effiecient a car can inhale and Exhale, the better it will be.
 

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I dunno about my whole tank but on my pretty well modded 94 5.0 I get about 22mpg : )
 

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Discussion Starter · #8 ·
wow, these are all good numbers lol. well i haven't really looked into it but my 02 sensors are disconnected under neath car and wires are jus hanging. and if i have the motor idling and im checking my motor out i burns my eyes badly from the exhust leak. leading me to think its running extreamly rich lol.


I get my Cobra R Wheels tommarow and ill connect them and try in fix my exhaust leak.
 

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Driving mine pretty hard I get 18-19 around town. I haven't driven this current set up long I am sure I could swing 20 if I wouldn't jump on it at every light.
MIne is pretty cookie cutter modified, Gt 40P Heads, e303, DSS 306, underdrive pulleys, ac delete etc. Dynotuned by Bob Kurgan it lays 256hp and 311lbs of Torque to the tires.
 

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I've been getting 12mpg:frustrated:at best...at 140miles gauge reads empty...I need a new sending unit. I need to get the car dynoed, haven't since the HCI build, I think it'll help a little with the gas.
 
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