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Turbo conversion
Posted: Thu Mar 25, 2004 12:49 pm
by KarlM
Hi all,
I can pick up a G40 block for my car without the charger
After pricing the charger up (and trying to find one!) i've decided to replace it with a turbo. So i need a bit of help.
I need to source:
A metal head gasket
a smallish turbo
a custom manifold to bolt the turbo to.
Can anyone help or give advice on this conversion?
cheers
Posted: Fri Mar 26, 2004 11:53 am
by EddyH
You're also gonna need a custom downpipe, intercooler, custom pipework, wastegate controller, DV and some kind of software.
The K03S as found on the newer 1.8T would probably be a suitable unit and can be picked used for under £200.
Posted: Fri Mar 26, 2004 12:20 pm
by KarlM
Nice.
Anyone know if JBS would be capable of knocking those bits up?
Posted: Sat Mar 27, 2004 2:33 pm
by polo2k
martin can do a new uprated one if you cross his palm with gold
Posted: Sat Mar 27, 2004 5:39 pm
by KarlM
new uprated what? the turbo?
ask him for a price will you.
Me a Pollock are going to start on the engine next week when i change the suspension
Posted: Sun Mar 28, 2004 11:01 am
by polo2k
ill try and remember when i speak to him next
Posted: Sun Mar 28, 2004 1:38 pm
by J-O
i know rothe motorsport makes the exhaus manifold for Polos...they should have it for G40...
Posted: Sun Mar 28, 2004 6:21 pm
by hardhitter
You can get new G40 chargers from germany for about 500 quid, have a look on pvw classifieds.
Posted: Wed Mar 31, 2004 12:37 pm
by hayesey
No need for a metal head gasket by the way. A G40 one can cope with well over a bar of boost. Don't know the exact limit but plenty of people with G40s (myself included) run a smidge over a bar with no problems.
You mentioned somewhere else about needing it to lower the compression ratio as well, theres no need for that as a G40 engine already has a lowered ratio using a larger bowl in the piston crowns.
You'd only need to do that if you were fitting a turbo to a previously naturally-aspirated engine.
Posted: Sun Apr 04, 2004 11:31 pm
by KarlM
right, just found out about a compay called Roth Motorsport that do turbo conversion kits for G40s. It includes all pipework and a K03 turbo.
anyone heard anything about them?