So we ordered an alternator pulley from 1320 performance and the diameter where you slide into the shaft of the alternator is too big. Called 1320 up and they said its because i need to run it with an oem alternator. which ive tried with 5 that i have. he kept saying their not oem, which they clearly are denso. They said that they've never heard of this problem from their customers but are clearly lying since the only alternator it fits, is an integra obd2 that i have. which is a lot bigger for fitment when installed and looking to keep it obd1. any ideas or suggestions?

was thinking about making a little ring where i can slide in and fill in the gaps. but was told that isn't ideal and should not be done.

 

What they are unaware of is that some JDM "B" Series Alternators actually used the "D" series shaft assembly inside, which happens to have a smaller diameter shaft compared to the USDM "B" Series Alternator shaft. Motorvations Motorsports makes a shaft adapter collar to accommodate the use of either shaft type with their JRSC Stepper Alternator Pulleys... contact them for assistance.

 

Question: Since the 1320 pulley doesn't make any more boost, what was the reason that you chose to purchase this product ?

 

Thanks for the reply JRcivic1. the reason i got this is because w/ the jrsc i bought it was a 10psi stepper which we didn't want to go (the old ladies car), and a lot of the rings were damaged. but i really appreciate the help and info bro.

 

shop is out of business.

ANYONE KNOW OF ANY SHOP THAT CAN MAKE THIS SLEEVE?

 

The shop is NOT OUT OF BUSINESS... please edit this post and do not put up false information. I was there today... trust me, they are super busy and FAR from out of business. A facebook page doesn't make one successful. I gave you the proper contact information... make an effort and reach out.

 

I found this image floating around on the interweb... looks like what you need to me. Notice one adapter collar set into the upper pulley on the left, whereas, the pulley on the right is the standard large bore.



There is also a free-standing collar/adapter in the foreground of the photo... which is what you need, right ?!?