auto specialties underdrive ka pulley?

[silviaguy240]

any one have one, wanted to know how nice it was considering its only $105, and the unorthodox is $250 if you can find it.

[projectRDM]

OBX is $40, exact copy of the UR except there's no timing marks on it. I've installed half a dozen of them and seen no issues.

[J ROK]

so what do you do about timing if you have to check it?

[SochBAT]

I actually had a similar designed crankpulley like the CosmoRacing/EBAY LINK (http://cgi.ebay.com/ebaymotors/Parts-Accessories_Car-Truck-Parts-Accessories__UNDERDRIVE-RACE-PULLEY-89-90-NISSAN-240SX-2-4L-12V-SOHC_W0QQitemZ260312034375QQddnZPartsQ20Q26Q20Acce ssoriesQQadiZ2865QQddiZ2811QQadnZCarQ20Q26Q20Truck Q20PartsQ20Q26Q20AccessoriesQQcmdZViewItemQQptZMot ors_Car_Truck_Parts_Accessories?hash=item260312034 375&_trksid=p4506.c0.m245&_trkparms=72%3A543|65%3A12|39%3A1|240%3A1318) one there.

Installed really easily, and just guessed timing myself. Never effed up on me or anything.

I'm really tempted to get this same one again too.

[projectRDM]

so what do you do about timing if you have to check it?

I have a real UR pulley I keep to match mark the OBX ones I install, just line them up on top of each other and score a mark. Usually though unless you've pulled the distributor or opened the engine you'd never need to redo the timing.

OBX has the full pulley kit out now too that's also the UR copy for like $170. Sadly no one bought the UR set back in the day because the design team who did it (with the help of local 240 guy Scott Buwalda of buwaldahybrids.com) didn't realize the DOHC KAs all use the same parts and listed the application as 95-98 only, loosing the potential market of 91-94 owners. It was also like $479 retail which was a waste of money for so little gain. But for $170 it's not bad, the water pump is oversized to prevent cavitation and all four are billet aluminum, a bit lighter than the steel OE ones.