I finally started and bought a turbo!
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I am finally getting started and got a GT2870r ( I think that it is what it is). It is small and ball bearing. I only want 5.5 psi and the quickest spool as possible. I am assuming I need the following:
(Please tell me if you have suggestions or I am on crack.)
HKS cast manifold for B6ze (Where is the best place to buy?)
Vortech FMU
Downpipe (any bolt ons available?)
Crossover pipe (Ditto?)
Boost gauge
Cone filter
wastegate actuator for 5.5psi (one on the turbo is like at 10, I think)
What else do I need to order?
(clamps, fittings, lines, and other little stuff will be available at the shop)
I will be doing it at a custom turbo shop but I want it to be as simple and as fast as an install as possible. The miata would be perfect for me with 135rwhp. I am old (35) and that is how much I need to make my curvy backroad drive to work fun. Thanks for any help, this is a great forum.


(Please tell me if you have suggestions or I am on crack.)
HKS cast manifold for B6ze (Where is the best place to buy?)
Vortech FMU
Downpipe (any bolt ons available?)
Crossover pipe (Ditto?)
Boost gauge
Cone filter
wastegate actuator for 5.5psi (one on the turbo is like at 10, I think)
What else do I need to order?
(clamps, fittings, lines, and other little stuff will be available at the shop)
I will be doing it at a custom turbo shop but I want it to be as simple and as fast as an install as possible. The miata would be perfect for me with 135rwhp. I am old (35) and that is how much I need to make my curvy backroad drive to work fun. Thanks for any help, this is a great forum.


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The downpipe will vary slightly for different style turbos.
I've seen one or two stock crossover pipes used, modified however necessary, so its possible.
I've seen one or two stock crossover pipes used, modified however necessary, so its possible.
Last edited by UofACATS; Jun 28, 2006 at 01:23 AM.
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"I only want 5.5 psi and the quickest spool as possible....... 135rwhp"
Sounds like a greddy kit..
Simple, fast install without having a "kit"
Sounds like a greddy kit..
Simple, fast install without having a "kit"
Last edited by UofACATS; Jun 27, 2006 at 05:49 PM.
I like your turbo choice. I have a gt28rs sitting under my bed... and eventually for the 93 miata I picked up yesterday.
Can anyone confirm the manifolds that will work with that turbo for the 1.6L and allow a 3in DP?
Or does anyone know of sources for miata head flanges so I can make up a custom manifold?
Can anyone confirm the manifolds that will work with that turbo for the 1.6L and allow a 3in DP?
Or does anyone know of sources for miata head flanges so I can make up a custom manifold?
Originally Posted by Splitime
I like your turbo choice. I have a gt28rs sitting under my bed... and eventually for the 93 miata I picked up yesterday.
Can anyone confirm the manifolds that will work with that turbo for the 1.6L and allow a 3in DP?
Or does anyone know of sources for miata head flanges so I can make up a custom manifold?
Can anyone confirm the manifolds that will work with that turbo for the 1.6L and allow a 3in DP?
Or does anyone know of sources for miata head flanges so I can make up a custom manifold?
The vendor sells them on eBay and I will buy one very soon.
I guess just give feedback and keep us updated on that OBX manifold... I really should get a friend to create a pseudo log and shift turbo up front so I can fit a nice large DP back there.
Time to find flanges...
Time to find flanges...
www.flipsidecustoms.com has some flanges laying around for sure. I would contact them and let em know that Kelly sent ya.
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Originally Posted by UofACATS
"I only want 5.5 psi and the quickest spool as possible....... 135rwhp"
Sounds like a greddy kit..
Simple, fast install without having a "kit"
Sounds like a greddy kit..
Simple, fast install without having a "kit"

I know, you are right. However...
1. I wanted a ball bearing turbo. (very small difference but every time I spool, it ads up)
2. Plastic intake piping + boost = long term unreliability. (I already have a nice unreliable car, my rx7)
3. My buddy who owns the shop would kick my a** if I bought a kit, otherwise it would save me a big pain.
Which FMU / ratio should I get?
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Originally Posted by rotaryjunky
I know, you are right. However...
1. I wanted a ball bearing turbo. (very small difference but every time I spool, it ads up)
1. I wanted a ball bearing turbo. (very small difference but every time I spool, it ads up)
[/QUOTE]I already have a nice unreliable car, my rx7[/QUOTE]
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From: Northern Michigan
Can anyone confirm that this is a GT28 series turbo? I need to confirm for my flange on the Begi mani I ordered. They don't have them from the factory yet so I have time before they send it out. Any help is appreciated.
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