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HKS Cast manifold users - what wastegate are you using?

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Old Sep 16, 2008 | 12:40 PM
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HKS Cast manifold users - what wastegate are you using?

Apparently HKS no longer makes their Standard wastegate, and I am loathe to spend $6-700 on their racing gate. What wastegates are you guys using on this manifold? Do any of the tials/turbonetics/etc fit on this flange? I would rather not get it cut and welded if I can avoid it.

Thanks in advance
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Old Sep 16, 2008 | 01:21 PM
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i know the older greddy one works. i have an older hks 40mm on mine
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Old Sep 16, 2008 | 03:17 PM
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Talking HKS cast manifold users

I use the Turbonetics New Gen. wategate with a Turbonetics to HKS adapter on my HKS manifold.
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Old Sep 16, 2008 | 03:18 PM
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avoid the HKS 40mm, it has boost creep problems anyway. mine couldn't keep boost at the 10psi spring when it was colder than about 45 F outside
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Old Sep 16, 2008 | 03:44 PM
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I use a Turbosmart 48mm
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Old Sep 16, 2008 | 04:41 PM
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From: https://www2.mazda.com/en/100th/
Originally Posted by thetech
Apparently HKS no longer makes their Standard wastegate, and I am loathe to spend $6-700 on their racing gate. What wastegates are you guys using on this manifold? Do any of the tials/turbonetics/etc fit on this flange? I would rather not get it cut and welded if I can avoid it.

Thanks in advance
a lot of the used JDM setups have an adaptor tube from the hks (or greddy) manifold to whatever wastegate.
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Old Oct 18, 2008 | 05:32 PM
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turbonetics Newgen wid v-band to connect that wastegate FTW!
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Old Oct 18, 2008 | 08:28 PM
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HKS 50mm here. I had the "standard" at first, but it would creep.
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Old Oct 19, 2008 | 09:00 AM
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thats weird, my hks 40 has not crept on me yet. i also haven't driven it when it was really cold out yet, the coldest it has been is in the 50's. when it was warm out it held boost consistently.
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Old Oct 19, 2008 | 03:14 PM
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From: cold
^ it may depend on your spring pressure. You can also detect small amounts of boost creep if you datalog a lot of pulls under different ambient conditions. You will see a little creep in the boost curve at the end.
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Old Oct 19, 2008 | 04:36 PM
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if wastegate is big enough and manifold built correctly, you should get 0 creep.
i have done so with all the turbo kits i sell and make.
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Old Oct 22, 2008 | 05:46 AM
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From: cold
anyone know if this HKS --> Tial adapter flange from ATP will work?



"Adapter Flange, Allows [Tial] 46mm wastegate to be used with HKS Flanged Manifolds, Adapter bolts onto the 46mm wastegate using 4 countersunk allen bolts (8mm x 1.25 pitch) and has 4 tapped holes on adapter to bolt to HKS flanged manifold using studs and nuts (8mm x 1.25 thread). HKS manifold must have bolt pattern of 2-3/16" bolt-center to bolt-center spacing for side to side adjacent hole measurement and 3" bolt-center to bolt-center spacing for diagonal holes."

Last edited by arghx; Oct 22, 2008 at 05:49 AM.
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Old Jan 21, 2009 | 10:09 PM
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Any more input. I have horrible creep..
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Old Jan 21, 2009 | 10:46 PM
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From: Floyds Knobs. IN
I've used a Tial 44 on a couple and a Tial 38 on another. Easy enough to make adapters out of steel. Pic below of the 38 adapter. I have an FD HKS manifold, Tial 44, and adapter FS if anyone is interested.

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Old Jan 21, 2009 | 10:57 PM
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anyone post pics of the HKS 50mm bolted to the cast mani? Should be the same bolt configeration right?
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Old Jan 22, 2009 | 01:21 AM
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Originally Posted by C. Ludwig
I've used a Tial 44 on a couple and a Tial 38 on another. Easy enough to make adapters out of steel. Pic below of the 38 adapter. I have an FD HKS manifold, Tial 44, and adapter FS if anyone is interested.

what are you asking?
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Old Jan 22, 2009 | 03:56 AM
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PM u thanks
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Old Jan 22, 2009 | 09:26 AM
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Originally Posted by FC3S Murray
anyone post pics of the HKS 50mm bolted to the cast mani? Should be the same bolt configeration right?
Mine is the ebay copy. I ported and blueprinted it. Suprisingly it has worked well for 50K miles.
Barry

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Old Jan 22, 2009 | 01:17 PM
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From: cold
Originally Posted by C. Ludwig
I've used a Tial 44 on a couple and a Tial 38 on another. Easy enough to make adapters out of steel. Pic below of the 38 adapter. I have an FD HKS manifold, Tial 44, and adapter FS if anyone is interested.

that looks like a 38mm though... my Tial 44 has a vband inlet
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Old Jan 22, 2009 | 02:03 PM
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From: Floyds Knobs. IN
Originally Posted by arghx
that looks like a 38mm though... my Tial 44 has a vband inlet
It looks like a 38 because it is a 38. Post says it's a 38.
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Old Jan 22, 2009 | 03:35 PM
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I misread it, my fault.
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