SRT-6.com: Info on Supercharger Pulleys
SRT-6.com: Info on Supercharger Pulleys
Hi,
If you have not seen it, feel free to check out the sc pulley page. anything to add, just press the "add info" button.
SRT-6.com - Chrysler Crossfire SRT-6
1212.PNG
If you have not seen it, feel free to check out the sc pulley page. anything to add, just press the "add info" button.
SRT-6.com - Chrysler Crossfire SRT-6
1212.PNG
Re: SRT-6.com: Info on Supercharger Pulleys
Was the so called Karmann pulley made in China?
There is a NSK bearing that fits as well, it was probably made in China as well though.
I thought things made in China were cheap, not this pulley though.
Last edited by onehundred80; 11-01-2015 at 12:16 AM.
Re: SRT-6.com: Info on Supercharger Pulleys
NSK bearings are Japanese, unless you're buying knock-offs. I just inspected a 62 last week that had a problem and it ended up being a busted shield and marked MADE IN CHINA. The measurement with the wire means you would lay two pieces, one on each side of the groove the caliper jaws will touch, to get the overall diameter of said pulley. Don't know who made the rule, just know it as a machinist student.
Re: SRT-6.com: Info on Supercharger Pulleys
NSK bearings are Japanese, unless you're buying knock-offs. I just inspected a 62 last week that had a problem and it ended up being a busted shield and marked MADE IN CHINA. The measurement with the wire means you would lay two pieces, one on each side of the groove the caliper jaws will touch, to get the overall diameter of said pulley. Don't know who made the rule, just know it as a machinist student.
You are partially correct, I was looking for the explanation of the 3mm wires. The 3mm size is wrong, it is much to big and would sit on or near the radius at the top of the 40 degree form.
The wire used will sit on the flanks of the form. The wire used could give the pulley diameter directly, but the wire would be a certain diameter.
Normal practice is to use wires a little larger so that the calipers or micrometer is measuring above the pulley diameter so no interference arises from the form either side of the wires. You would be machining down to a dimension which would be greater than the pulley diameter, that dimension would only be true when the actual pulley diameter had been reached.
The difference between the pulley diameter and the calculated dimension would be used as a constant to make any pulley diameter.
Using this figure you could calculate the true pulley diameter as opposed to the advertised pulley diameter. Measuring an actual pulley does not give the true working diameter, the rads at the top change the actual diameter, big rads = smaller measurement, small rads = larger measurement.
Last edited by onehundred80; 11-01-2015 at 10:08 AM. Reason: clarification added.
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