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**stevieyid** · 9 July 2006, 18:57

Looks like i need to get mine fitted ASAP. Could well be my problem to. How long does it take to fit the Mark H mod

***s2driveruk*** · 9 July 2006, 21:14

as long as it takes to remove the bumper - could be 20mins, could be 4 hours depends how easy yours is to get off and to get the i/c out to remove the o-ring and then just slide the hose on...

I really need to do this too but i have replaced the o-ring in the last couple of years and the boost guage shows all ok so....

**stevieyid** · 9 July 2006, 21:19

whats the o-ring then? what does the o-ring do?

***s2driveruk*** · 9 July 2006, 21:28

goes between the exit port of the I/C and the metal pipe which runs behind the front crossmember and the one which runs up to the rocker cover. The ring is identical to that which seals the thermostat and sits in a milled groove in the end of the i/c pipe.

At best it gives an adequate seal but more often than not its broken or even missing which means you lose a shed load of air. The mod above makes a more effective seal on this joint.

**Jamo** · 9 July 2006, 21:54

Originally posted by dan_b

A small comment - why does the Samco intake kit not also include new hoses for the Wastegate Frequency Valve?

Fortunately we had some spare 8mm knocking about, so swapped those...

There's no pleasing some people!

Because it would add extra price to the kit and it's an off the the shelf item easily bought from any go-faster stockist.

The hose is best off bought from SFS or an SFS stockist such as Demon Tweeks (not that i'm recommending them!)

**dan_b** · 9 July 2006, 22:34

Fair point, but it seemed to me that as it was a complete "boost kit" it should contain all the hoses for the job, and if you need to go and buy that replacement hose from somewhere else, that would probably end up more expensive? Never mind, managed to get round it!

**newsh** · 9 July 2006, 22:42

Yeah, it would be nice to get the small hose that goes from the WGFV to the face of the turbo, its a shaped one and its hard to get the straight hose to do a tidy job.

**Jamo** · 9 July 2006, 22:49

Originally posted by dan_b

Fair point, but it seemed to me that as it was a complete "boost kit" it should contain all the hoses for the job, and if you need to go and buy that replacement hose from somewhere else, that would probably end up more expensive? Never mind, managed to get round it!

It's a boost intake replace host kit, The WGFV hose is not part of that system

**dan_b** · 10 July 2006, 09:16

Ok in which case the kit should therefore also include the MarkH mod as I bet every single one of the non-modified cars running now has a busted o-ring...

**newsh** · 10 July 2006, 23:38

Originally posted by Jamo

It's a boost intake replace host kit, The WGFV hose is not part of that system

You're saying the WGFV is not part of the boost system?

**dan_b** · 11 July 2006, 08:54

Indeed!

**meep** · 14 July 2006, 20:23

What diameter hose should one buy for the intercooler mod? Im loosing a shitload of air that way. Tried several ways of fixing but none of em have worked ok.

**dan_b** · 14 July 2006, 21:34

All covered in my thread asking the same topic: http://www.s2forum.com/forum/showthr...ight=markh+mod

In summary though you need a 70mm-60mm silicone reducing pipe. The part that is supplied is far too long so you have to cut it down to fit. The excellent people at VAGParts sell it if you can buy online.

I would recommend getting a really good set of jubilee clips to hold it all together.

**meep** · 14 July 2006, 23:20

Ahh excellent. Will give this one a try until i change IC and intake.

Announcement

Boost leaks fixed/Mark H mod...

Boost leaks fixed/Mark H mod...

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