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Old 10-07-2012, 12:10 AM   #1
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Default Need turbo manifold advice

Need some help with a turbo manifold looking for options on what I can get need something with a t3 top mount and at a 45* angle to the head like this. http://www.racingpartdepot.com/media...3a18b525_m.jpg
It's an OBX I know nothing about it. But its cheap which make me worried but I come from places where aftermarkets small. Reason for the replacement is bc the one on my car was home made and is quite simply put horrible. But I dynoed today made 155/158 to the wheels on a dyno jet so I'm decently happy but I know the mani is killing a lot of power.

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Old 10-07-2012, 12:13 AM   #2
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if you want a replica of that crappy OBX but with good quality you should hit up abe @ ARtech.
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Old 10-07-2012, 12:15 AM   #3
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Old 10-07-2012, 12:27 AM   #4
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I've done some searching but I'm not coming up with much I saw the sticky of the eBay mani which is why I'm staying away I've had the car for almost 2 weeks and found very little in way of the mani I need.
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Old 10-07-2012, 03:32 AM   #5
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+1 for info on manis.

I don't really want to spend $900 on a tubular mani and I don't want to go log... Are there any solid affordable tubulars?
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Old 10-07-2012, 05:15 AM   #6
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Quote:
Originally Posted by mikeboldt View Post
+1 for info on manis.

I don't really want to spend $900 on a tubular mani and I don't want to go log... Are there any solid affordable tubulars?

For tubular-Begi/ARtech/Absurdflow/Classifieds.

Gotta pay to play, boys.
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Old 10-07-2012, 08:23 AM   #7
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Hi Justin, I know all about
Quote:
but I come from places where aftermarkets small
Where are you located?
Is remaking the manifold that is on your car an option? It might be possible to rehash it with weld els and tees?
The head and turbo flanges (usually hardest parts to get) might be reusable. Post some pictures?

Even if you don't weld, much of the work in making manifolds is pipe prep. Equiped with a 4.5 inch angle grinder and bench vice most people can manage to knock out the basic shape and then take it to a welder to finish.

Quote:
But I dumped today made 155/158 to the wheels on a dump jet so I'm decently happy but I know the mani is killing a lot of power.
What size is your exhaust? My understanding is that a restrictive exhaust is more of a bottleneck than a log manifold.
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Old 10-07-2012, 12:20 PM   #8
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Well the Head flange is warped and I'm lucky I got it to seal, the turbo flange (t3) was drilled horribly for the bolts only three will line up the fourth bolt is off by 3/4 of its actual width also lucky I got that to seal, and finally the collector is terrible externally the welds are great but the collector welds are runny and just all around nasty then there is the fact that the individual runners don't have equal flow if you look at it the top runners going into the flange (1,4) have 1/3 of the flange opening and the runners are litterally squashed to fit, the other runners (2,3) have about 2/3 of the flange to flow and the runners are actually round.
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