Pulley sizes for Eaton M45 conversion

Doc J · July 09, 2009, 07:30:44 AM

I new that Eaton M45 kits are availabe, but here in Bulgaria can't find them. The only way is ebay.com, but the delivery price is so high

So, can I use a pulleys and belts set of MK3 Golf for example or other VAG engineto fit on my G40 with standart Eaton M45 pulley, or someone tell me sizes of the pulleys to make them custom (I've people to do this work).

The max pressure I want is 1bar.

Thanks in advance.

juan · July 09, 2009, 01:19:48 PM

for about 1 bar of boost on an eaton you want a 27 tooth htd pulley.

PeteG40 · July 09, 2009, 02:25:44 PM

its all relative, depending on what size your charger pulley is.

I do have a crank pulley from an AWT eaton kit which was run with a stock mini eaton pulley. YOu'ld just need an alternator pulley then.

juan · July 09, 2009, 04:05:25 PM

Quote from: juan on July 09, 2009, 01:19:48 PM
for about 1 bar of boost on an eaton you want a 27 tooth htd pulley.

To be more specific a 27 tooth 8m htd pulley would produce around 1/1.1 bar of boost when used in conjunction with a psd spec toothed pulley kit.

hayesey · July 09, 2009, 05:30:11 PM

what;s the point in going to all the effort of doing an eaton conversion to run a bar of boost? Just charger reliability?

g40chris · July 09, 2009, 05:44:43 PM

the AWT kit uses a 20v NA golf crank pulley which is larger diameter than the original G40 crank pulley so it has an opposite effect on the charger pulley making it spin quicker as if it was a smaller pulley on the charger. im sure the eaton charger's standard pulley is 65mm, so with this effect with the larger crank pulley im sure a standard pullied eaton would produce a little more than 1 bar of boost

juan · July 09, 2009, 10:04:33 PM

Quote from: hayesey on July 09, 2009, 05:30:11 PM
what;s the point in going to all the effort of doing an eaton conversion to run a bar of boost? Just charger reliability?

Yea charger reliability is a point, i went towards an eaton conversion as it's better suited to the space confinements of the mk1 engine bay (basically i won't have to cut the front panel and i can even still run the early grille.

Yes it can only run around a bar of boost with the 27 tooth pulley but then it isn't a problem to take that pulley off and put a smaller one on (24 tooth).

Doc J · July 10, 2009, 06:19:25 AM

Here in Bulgaria the price of servicing a G40 is near to the price of new one. And as I know the chance to broke an Eaton is very small.

vwmk3jon · July 15, 2009, 05:18:33 PM

As long as the seals on the charger are all in good condition, it shouldnt die unless you do something real stupid to it.

Doc J · August 04, 2009, 08:15:38 PM

What can be this stupid sh.. that I can make? I want an Eaton because I see some cases when people change the pulley of the G with smaller and the charger dies. This scared me. But I want higher boost. And I see that the Eaton can produce it with no chance to broke (in the most cases

)