Jump to content
SAU Community

Recommended Posts

I'm pulling out my old stock radiator and replacing it and the clutch fan with brand new parts, along with some other front end stuff that's convenient to do while it's out, and I got to thinking... Is it worth buying the Greddy/Trust lightweight pulley kit? It's only 260 bucks https://www.rhdjapan.com/trust-greddy-pulley-kit-bnr32.html and claims to free up some response. But I can't seem to find definitive answers on;
Are they actually worth it
Are they a pain in the ass
Are they underdrive or standard belt size
I'm wondering if anyone can give me their reviews on lightweight pulleys and whether they'd be a nice QOL type upgrade if they're gonna be exposed and ready to swap out regardless or if they're just gonna be in there for looks. And if anyone can tell me whether or not these fit standard belt sizes, I'm seeing that Greddy discontinued their underdrive ones a while back but I'd like to confirm before I spend the money on them

  • Like 1
Link to comment
https://www.sau.com.au/forums/topic/481611-lightweight-pulleys/
Share on other sites

I run them on the race car, but don't have anything back to back to show any difference. I have no reason to believe the "lightweight" does anything, but underdriving the alternator, water pump and power steering pump when using sustained high rpm in track use makes sense to me (you could also achieve this through a different balancer of course.)

Note the Greddy oversize pullies (water pump in particular) requires the standard harmonic balancer to be turned down a little in a lathe to clear the pulley.

  • Like 1

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • For race cars, this is one part where I find having the roll cage bar having gone through a hole in the floor better than the build it up on a ledge inside... The Merc I help on, the main hoop ends are marked on the car, and the jack is marked... Jack goes under a few inches and lifts one whole side of the car up... Removes that fight for long slim jacks for race car duties!   My biggest issue for the daily drivers I work on, is my jacks don't go high enough. The jacks start out on a few blocks, jack it up, then start a second jack under it on more blocks, and then I can get an axle stand under it. My axle stands are presently in use, and are nearly fully extended. The car is sitting with barely more than a cm of clearance to get the wheel off the studs! Sarah's Kluger is the same, as it has an ungodly amount of droop available in the suspension and a distinct lack of good jacking points!
    • Happy? Yep, my to do list is getting shorter and shorter. Either this light approaching is the end of the tunnel, or I'm about to be hit by a train... Ha ha ha   Also, Duncan isn't that far out of town that you need to make a multi day drive out of it. 😛
    • Sorry I meant that we are building the EH for a client.
    • LOL, when one "money pit" is never enough Noice, and excellent work mate
    • I have more than enough digging, laying blocks, moving gravel, airrating, feeding and top soiling the grass, and setting up the veggie gardens growing some seedlings,  and then removing all the unused rock to keep me busy for the next few months at least,  hopefully the rain stops soon so I can get a few hours in this arvo, but, before that Sunday is washing day, is every body happy, you bet your life we are Nice country road day drives are a day off whenever I'm muscle sore from all the landscaping at the moment, but, more epic multiple day drives will start once the majority of the big jobs outside are completed
×
×
  • Create New...