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Exhaust Manifold Question

Old 04-05-2004, 10:16 AM
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i am trying to piece together a turbo kit for my 91 n/a

i found an HKS manifold for a good price but how do i know what size turbo would fit on it. it doesnt give a trim size could it be the same size as the factory tII. i will add the link for it as soon as i find it.
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Old 04-05-2004, 10:19 AM
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Old 04-06-2004, 07:27 AM
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By the looks of it you'd have to find a flange and have it welded on. How many turbo's have you seen that have round flanges?
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Old 04-06-2004, 07:33 AM
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I just checked out the HKS website and they don't list a ss tubular manifold for the 87-91 TII. They only list a cast iron manifold. I could be wrong, but I don't think that you're going to recieve the item pictured.
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Old 04-06-2004, 10:45 AM
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Originally Posted by 7mech' date='Apr 6 2004, 07:33 AM
I just checked out the HKS website and they don't list a ss tubular manifold for the 87-91 TII. They only list a cast iron manifold. I could be wrong, but I don't think that you're going to recieve the item pictured.
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Old 04-06-2004, 10:58 AM
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Yes thats the FD ss manifold for the hks racing waste gate and a T51. Both are V-band. the one for the FC is cast iron and will fit many sizes of turbo.. it be real easy to call HKS and ask what p/n manifold to what size turbo you want to use.
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Old 04-06-2004, 12:22 PM
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turbo manifold new from OBX

Try this one. You might like it and it's cheaper.
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Old 04-06-2004, 01:18 PM
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BTW in a different add for this same manifold it states that any of 6 different external wastegates will fit it. They range in size from 35mm, 38mm, and 40mm(2bolt design) and also 40mm, 46mm, 50mm (4 bolt design) from blitz, greddy, apexi, and hks. It also includes the gaskets needed to install these wastegates.
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Old 04-06-2004, 01:40 PM
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no one even makes a turbo exhaust manifold for an NA.
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Old 04-06-2004, 02:36 PM
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If I'm correct the manifold bolt pattern for the turbo II and N/A are the same, so you should be able to use the same manifold with some minor adjustments so that it will fit around the intake manifold. I could be wrong, so if some of the other N/A guys could chime in and confirm or deny this I would appreciate it.
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