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Discussion Starter · #1 ·
here is the story:
i dynoed my car 3 days ago and it only made 174whp with the 60 hp (used to make 210) the only difference was colder spark plugs . then i tried the 75 hp and it only made 178 whp. so we used a wide band o2 sensor to to see if the car was running rich. the car was running way to rich to make any power.
the questions:
can the colder spark plugs make my lose 35whp?
for my 60 shot i'm using 20 NOS 20 fuel and for my 75 i'm using 22/22. does anyone know which jets should i use for the fuel to go leaner?
BTW
the car dynoed 123 whp off the bottle and it used to dyno 137.
 

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Discussion Starter · #7 ·
vvtlikick
the 17 hp lost should be from the colder plugs. i felt that the car was slower since i put them in.
larry
i'm using a direct port so i can't use 37/22
 
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