Author Topic: G60 i/o G40  (Read 1487 times)

Offline Ä‘uro

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G60 i/o G40
« on: August 01, 2016, 10:16:57 am »
Cheers guys

Placed in my Arosa G60 fresh rebuilt. pressure is only 0,5 Bar. IMHO this is 2 low isn't it ?
Charger is fully ported (intake - both sides on 72 mm + exaust part full) on top of exaust side i places "U bogen" (big pipe 180°) with diameter 76 mm. everything has been inspected and now parts has been placed in side.
Rest of the piping is only 50 mm in diameter ...

Crankshaft pully is 107 mm in diameter and  G has 62 mm pulley which leed us to ratio of 1,726 . This should be ok as on Corrado pulley is 126 mm and on Passat 132 mm., the ratio is fm 1,66 till 1,9 and in that range G is working fine. everything else is 2 high or 2 low

My question is : is it possible that my crankshaft pulley is 2 small even I hv good ratio between this 2 pullyes and I can not get better pressure or can it be that my fresh rebuilt charger hv some faliure and can not produce more than 0,5 bar pressure?

tks in advance
Damjan

Offline polo classic

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Re: G60 i/o G40
« Reply #1 on: August 01, 2016, 12:39:01 pm »
Small pulleys are more inclined to slip than bigger pulleys.

Which type of pulleys do you use? 6PK?

Offline Ä‘uro

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Re: G60 i/o G40
« Reply #2 on: August 01, 2016, 01:15:18 pm »
sliping is not an issue.
it won't slip. no neet to worry about it.
I hv tooths (24 tooth)

I'm just worried regarding small pressure . As Im reading pressure should be app 1,5 Bar and I hv only 0,5

cheers

Offline polo classic

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Re: G60 i/o G40
« Reply #3 on: August 02, 2016, 08:19:56 am »
is it fitted to a G60 or a G40 engine?
You are only turning the charger around 11K-12K rpm, not much more than stock, but on a G40 you should at least see 0,8 bar

Have you checked for leaks?

Offline Ä‘uro

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Re: G60 i/o G40
« Reply #4 on: August 04, 2016, 11:18:12 am »
Cheers man

I paced G60 charger on PY G40 engine with tooth pulley 65 mm

As i could see on 3 Trpm it should be app 0,7 bar and on 6,5 trpm pressure should be app 1,5 bar.
no leeks at all . checked all 3x


Offline GR40

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Re: G60 i/o G40
« Reply #5 on: August 05, 2016, 10:51:55 am »
Is the charger in good condition? If the scroll seals have gone bad it will not produce enough boost.

Offline Ä‘uro

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Re: G60 i/o G40
« Reply #6 on: August 08, 2016, 07:13:35 am »

everything is new and fresh. charger has only 42 km (made today morning )

Offline Alexiskayak_7

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Re: G60 i/o G40
« Reply #7 on: September 04, 2016, 05:11:35 pm »

everything is new and fresh. charger has only 42 km (made today morning )


Have you checked for any leaks?

Offline Ä‘uro

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Re: G60 i/o G40
« Reply #8 on: September 05, 2016, 08:12:27 am »
I think I hv small ratio on pulley's . As checked I hv "standard" ratio as on standard G60 charger on Corrado.