lower gears???

06iornhorse

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well I got my new tires installed and a dyno tune done today. well with the new tires my car is at 130 mph at 6500 rpms in 4th gear, as it was at 118 at those rpms before. and when driving the car it feels like I have 3.55 again instead of 4.10. the new tires are 295/45-17 mt street raidals II so I am thinking of droping my gear ratio more. Manny at hpp suggested that I go with 4.56's and not 4.33's. He said the 4.33's would not help that much and says I should still get around 20 mpg wit 4.56, as I am getting 29 with 4.10's. What do yall with 4.56's think.
 

stkjock

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what is your goal?

what tire did you have? the 295/45/17 is 27.2" in diameter according to MTs site so that's about stock.
 

stkjock

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What was on previous to the 295/45/17s?
 

stkjock

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hmmmm something doesnt sound right then... should not be that much of a diameter difference
 

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