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Shaggy · 11-18-2002, 08:32 PM

Well crap i had this whole dissertation written out and lost da^^n computer

Okay once again ALL windsor motors (255,260,289,302 and 351w not clevland) com with 1.6 rockers stock for you to have the lift according to your math you would need to be running a 1.7 rocker. EDE rates that cam with the stock 1.6 rockers.

Now from what I have read i would say go to the 3.55 i am not writing all the formulas and math examples i had before the OOPS but with you motor at the same given RPM you will be faster assuming your motor is stong enough to pull with the lower gears

think of your tranny how fast can you go in 1st gear? 30ish? but how fast does it gain that 30mph now in 4th How long does it take you to accelerate from 0 to 30mph? The reason being that when you car is in first the way the gear ratios work out is with a 3.35 first gear with a 3.55 rear gear would be like being in a 1:1 fourth with a 11.8925 gear. Hence the reason that when you go to numerically taller gear you car accelerates faster but would have a slower Top speed and vice cersa for the numerically lower gears. Now that being said if the motor can't provide the need power to pull the same amount of revs then you may actually slow yourself down as in the case of a bone stock fox body they actually pick up about 5mph by going to 3.55's because they don't have the power to pull the numerically lower gears as fast as the 3.55's it is also the reason why alot of T-56 cars fall on there face when they hit 6th becaus the ford spec is the only T-56 to have a .63 od VS the others with there .5 od the gearing is so low for them they can't pull it.

11-18-2002, 08:32 PM	#13
Shaggy Registered Member Join Date: Feb 1999 Location: Houston,TX Posts: 466	Well crap i had this whole dissertation written out and lost da^^n computer Okay once again ALL windsor motors (255,260,289,302 and 351w not clevland) com with 1.6 rockers stock for you to have the lift according to your math you would need to be running a 1.7 rocker. EDE rates that cam with the stock 1.6 rockers. Now from what I have read i would say go to the 3.55 i am not writing all the formulas and math examples i had before the OOPS but with you motor at the same given RPM you will be faster assuming your motor is stong enough to pull with the lower gears think of your tranny how fast can you go in 1st gear? 30ish? but how fast does it gain that 30mph now in 4th How long does it take you to accelerate from 0 to 30mph? The reason being that when you car is in first the way the gear ratios work out is with a 3.35 first gear with a 3.55 rear gear would be like being in a 1:1 fourth with a 11.8925 gear. Hence the reason that when you go to numerically taller gear you car accelerates faster but would have a slower Top speed and vice cersa for the numerically lower gears. Now that being said if the motor can't provide the need power to pull the same amount of revs then you may actually slow yourself down as in the case of a bone stock fox body they actually pick up about 5mph by going to 3.55's because they don't have the power to pull the numerically lower gears as fast as the 3.55's it is also the reason why alot of T-56 cars fall on there face when they hit 6th becaus the ford spec is the only T-56 to have a .63 od VS the others with there .5 od the gearing is so low for them they can't pull it. __________________ A good plan, violently executed now, is better than a perfect plan next week. George S. Patton, General (1885-1945)