Club G40 Forum

Technical => Superchargers / G-Lader => Topic started by: xandyx on May 12, 2011, 02:44:37 am

Title: golf mk3 pulley
Post by: xandyx on May 12, 2011, 02:44:37 am

hi there!

i've been looking for a smaller pulley to fit my charger, and as i was looking for it i found this:

sorry for the portuguese content, but you'll get the point!
http://www.custojusto.pt/Porto/2020624-Polies+Volkswagen+Polo+III+1+0.htm?

do you guys think this is a good way to move from twin v-belts to 5pk belts?
will pulley's be the same size as polo g40 standard?
will they match a corrado g60 65mm pulley?

cheers
andré

Title: Re: golf mk3 pulley
Post by: PeteG40 on May 12, 2011, 07:13:07 am

not sure - but G-ladersiete do a full ribbed belt set.

I think the charger pulley on a g60 is offset by a different amount

pete

Title: Re: golf mk3 pulley
Post by: Justin14100 on May 12, 2011, 09:16:20 am

be aware that in Portugal they somehow run much, much smaller pulleys than us, down into the 50's is the norm there.

Title: Re: golf mk3 pulley
Post by: xandyx on May 12, 2011, 05:06:42 pm

yeh, lots of people run 60mm, 58mm and 55mm pulley. lot's of chargers blowing arround here. i'm gonna get a 68mm or 65mm. no way getting smaller than that.

but if crank pulley and alternator pulley have the same size as g40 ones and the same offset, do i get advantages using it?

cheers

Title: Re: golf mk3 pulley
Post by: Justin14100 on May 12, 2011, 06:31:24 pm

less slip on 5pk so a little more power, if they are an alloy pulley they will be lighter.
So do many chargers blow in portugal then? I wanted to go down to a 62mm toothed setup but dont want to cause a hellish amount of damage.

Title: Re: golf mk3 pulley
Post by: xandyx on May 13, 2011, 01:07:45 am

yeah, lots of people look for huge boost, so smaller pulley, and then, they pay the buck!

i don't trust in something smaller than 65mm. rather get the charger ported besides going smaller on pulley.

Title: Re: golf mk3 pulley
Post by: ereeiz on May 13, 2011, 06:07:00 pm

Going back some time I'm sure I remember seeing a graph of air flow or calculations on here or PSD and it showed that it was pointless going smaller than 60-65 (may have been 62?) mm as it couldn't flow any more air and it was turning over too quick/ blowing seals?

I really shouldn't smoke so much, I'd remember a lot more, hahaha

Title: Re: golf mk3 pulley
Post by: Justin14100 on May 14, 2011, 01:05:28 pm

Quote from: ereeiz on May 13, 2011, 06:07:00 pm

Going back some time I'm sure I remember seeing a graph of air flow or calculations on here or PSD and it showed that it was pointless going smaller than 60-65 (may have been 62?) mm as it couldn't flow any more air and it was turning over too quick/ blowing seals?

I really shouldn't smoke so much, I'd remember a lot more, hahaha

I'd love to see some air flow calculations, i think a lot was lost on the PSD forum, sadly.