Final results on the lightweight crank pulley

[elwesso]

This posted from the other thread, i guess no one saw it... oh well!

First off, i took a video of 0-60 and 50-80 for comparison.. I can post those if anyone cares, but its nothing special... Temperatures were roughly the same, within 5 degrees, and the tests were done on the same road with roughly the same amount of gas (I did the test stock, changed the pulley, then went back out)..

I used the same video, but timed the same run 5 times, and dropped the higest and the lowest and averaged the other 3. * denotes being dropped

0-60 times, stock7.53*7.257.477.19*7.40AVERAGE: 7.37

50-80 times, stock5.90*5.916.03*6.006.00AVERAGE: 5.97

0-60 times, with pulley7.036.94*7.15*7.15*7.13AVERAGE:7.08

50-80 times, with pulley6.106.00*6.126.096.19*AVERAGE: 6.10

SO, basically there are SO many variables that make these these numbers almost this different on 2-3-4 seperate runs, that you can hardly consider the oh so slight difference in time really worth anything. Probably easy to say its less than 10HP, probably closer to 5HP, that was gained...

To add to this, the crank seems to move around a lot more than it did with the stock pulley... So much, that its already eaten into my AC beltIdle smoothness wasnt changed much for some reason, IN the videos i took you can barely tell the crank pulley moves around, with the other pulley its VERY noticeable.....

I think this post speaks for itself on my overall opinion.

[maxnix]

Nothing like quantitative data!

Thanks.

[superuber]

thanks Wes for all the "leg work". I guess that answersmy questions about pulleys. You went over and beyond for us!Now if you could just get me back up on Q45.org!

http://community.webshots.com/user/neheadsuperuber

[Jesda]

thanks Wes for all the "leg work". I guess that answersmy questions about pulleys. You went over and beyond for us!Now if you could just get me back up on Q45.org!

http://community.webshots.com/user/neheadsuperuber

I got your files at home. Unfortunately, I wont be there until the end of August.