Running more boost? Get rid of that leaking POS dump valve...
Hey Guys,
I have been trying to find what I thought sounded like a boost leak for a while. I thought it was at the manifold inlet, then I was thinking I blew out the gasket at the head. I finnaly found it to be the boost dump valve. I had originally plugged the outlet and it was ok. As time has gone on, it seemed like the turbo didn't spool as well and there was a different sound from the engine off boost. Rather than the nice whistle is was a whooshing sound. Anway, I found it to be leaking between the valve and manifold, so I siliconed the O-ring and that helped a bunch, but there was still noise. Upon closer inspection, it was leaking boost from the seam where it is assembled. I decided to remove it and installed a 1.5" rubber plumbing cap with clamp that I got from home depot. WOW what a difference. The turbo spools better than it ever has, and actually isn't too bad at all even with the large .63 a/r hot side I still have. This would be one of the first things I would remove if you plan to run more than stock boost! Jason |
Can`t you use a na intake? I am giong to do that when i are going to fit a intercooler.
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The intake from the D24TIC does not have this blow off valve but the N/A intake is more estetic...
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Or are you even from USA? Anyways, its consideres at N/A intake manifold is slightly better in terms of air flowing, BUT, since its turbo, it doesnt count like any after all. Im going to add IC too with N/A manifold. But tip: i dont know is there difference between the height of 200- and 700-series N/A intake manifolds, but ive fitted mine manifold from 200-series D6, and it is really close to bonnet, think i have to cut piece from my bonnet cover. Will see. |
Thats not a problem. Volvo 700-900 came with d24 without turbo.
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Didnīt know they never imported it to the US, but then again the 940 series with d24tic was never sold here in sweden either ;-) Oh right now Iīm in Norway doing a course on an american product.... |
Here in norway is all 940 d24tic and the most of them have automatic transmission. The 940 d24 is usual luxury cars here.
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I'm working on getting a NA manifold, when it gets here I'll be doing the intercooler install.
Jason |
I have a few of these na intakes. They are esay to get.
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not to you. |
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