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View Full Version : Quick question about ka24de UD Pulley...

non-stop rps13
11-03-2010, 10:41 PM
Just found out my oem underdrive pulley cracked on my and need to replace it. Im thinking about th ASP UD PULLEY frow EnjukuRacing.

Will I need to order new belts with the pulley or can I use the same belts Im running aready? If I need to change the belt what size am I looking for? Any info would help alot. thanks in advance.
codyace
11-04-2010, 11:05 AM
Unsure, did you check ASP's site, or send Enjuku an email?


Nissan Road Racing Forums - View Single Post - Any difference between ka24de ISIS crank pulley vs ASP crank pulley (http://www.nissanroadracing.com/showpost.php?p=32536&postcount=11)

3 seconds on google.
non-stop rps13
11-05-2010, 02:03 PM
Unsure, did you check ASP's site, or send Enjuku an email?


Nissan Road Racing Forums - View Single Post - Any difference between ka24de ISIS crank pulley vs ASP crank pulley (http://www.nissanroadracing.com/showpost.php?p=32536&postcount=11)

3 seconds on google.

Yea i tried those sites but they are not specific.

I just orderd it yesterday so ill see if i need new belts when it gets here. lol

thanks for the link also.
projectRDM
11-05-2010, 03:29 PM
The pulley is smaller in diameter. How would you think it wouldn't need shorter belts?

It does. Plenty of sites with belt sizes if you look for them.
non-stop rps13
11-05-2010, 04:00 PM
The pulley is smaller in diameter. How would you think it wouldn't need shorter belts?

It does. Plenty of sites with belt sizes if you look for them.

Thanks for the info. Im a noobie at the pulley game so thats why im asking.

any sites you preffer?
modulation
11-05-2010, 04:44 PM
Thanks for the info. Im a noobie at the pulley game so thats why im asking.

any sites you preffer?

The manufacturer you buy the pulley from will specify what belts on their website.
Pirate_Freder
11-05-2010, 05:13 PM
Just to make sure you understand, seeing as you said your stock UD pulley is cracked... You are talking about your crank pulley and UD stands for underdrive, stock is not an underdrive. So if you go with a UD pulley you will be reducing rpm at your accessory pulleys by ~15%(asp is 15).

I do run an ASP though and haven't had any major problems, only thing was my head unit wigged out until I got a 125amp Quest alternator(coulda been my old one going out causing the problem though)