ok, there is a similar question on here but its not exact. which setup would give the most boost? as far as upper and lower pulley's go. i have a 3.1 pulley on it now. i was either thinking to add a huge ass lower pulley on it, or adding a 2.76 and a smaller lower pulley on it. which would give the most boost and power? whats the biggest lower pulley size you can buy? i dont nec need the safest route. im just lookin for the most powerful route without havin a 100% chance of blowin up my car.lol.thanks you all.
which would give more boost?
- Thread starter SONICSNAKE03
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marcseidler
New Member
Do the math and calculate the ratio. The higher that ratie the more boost (discounting possible slip with the smaller upper pulley.
EX: Lower 7.5" divided by 2.8" upper = 2.68
Lower 9.0" divided by 3.0" upper = 3.0
3.0 = more boost than 2.68
Remember that unless you port the Eaton more than 2.56 to 2.68 ratio is counter productive.
EX: Lower 7.5" divided by 2.8" upper = 2.68
Lower 9.0" divided by 3.0" upper = 3.0
3.0 = more boost than 2.68
Remember that unless you port the Eaton more than 2.56 to 2.68 ratio is counter productive.
thanks i think. i have no idea what the 7.5 thing is. i appreciate u tryin to help. anybody else? im not the smartest guy in the world, so alittle more english would be great. thanks though seidler.
marcseidler
New Member
Stock bottom pulley on a 2003 and 2004 Cobra is 7.5".
well i was talkin about like 4lb lower, etc. unless its the same thing
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