
SP Turbo Removal (or replacing the turbo mounting studs)
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- CT
- Racing Driver
- Posts: 1418
- Joined: Thu Apr 24, 2003 11:00 am
- Vehicle: NB SP
- Location: By the lake...
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SP Turbo Removal (or replacing the turbo mounting studs)
Nissan OEM stuff only applies to the SP, not the SE. The SE's are fine - properly engineered
They are not cheap but then refitting your turbo every second week isn't either. Budget on $100 at least. The problem with all the others is that the materials expand at different rates and they come loose under the stress of weight and heat. My studs are also welded into the manifold.

2006 Z06 Corvette - 650hp of wow!
- PASHN8
- Racing Driver
- Posts: 648
- Joined: Thu Jun 02, 2005 11:28 am
- Vehicle: NB SE
- Location: Melbourne
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SP Turbo Removal (or replacing the turbo mounting studs)
You were right on the SE engineering CT
, it turned out to be the down pipe 3 bolt flange gasket that had blown out. Machined the flange nice and flat, new gasket and voila!
Question, those with the SMB exhaust, are you using the SMB gasket (if they provide one?) or the Mazda OEM triangular gasket on the down pipe flange? Only reason I ask is that is seems the piping diameter is around 2"-2.25" coming out of the short cast dump, then into the 2.5" diameter of the SMB. I figure a 2.5" gasket will end up burning out from the inside out due to it being the restriction?
So, should the ID of the gasket be that of the short cast OEM dump? or of the 2.5" SMB ID diameter?

Question, those with the SMB exhaust, are you using the SMB gasket (if they provide one?) or the Mazda OEM triangular gasket on the down pipe flange? Only reason I ask is that is seems the piping diameter is around 2"-2.25" coming out of the short cast dump, then into the 2.5" diameter of the SMB. I figure a 2.5" gasket will end up burning out from the inside out due to it being the restriction?
So, should the ID of the gasket be that of the short cast OEM dump? or of the 2.5" SMB ID diameter?
- 2005 MX-5 SE
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- AL
- Driver
- Posts: 91
- Joined: Sat Aug 05, 2006 6:11 pm
- Vehicle: NA6 - Turbo
- Location: Sydney-North
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SP Turbo Removal (or replacing the turbo mounting studs)
I had alot of trouble keeping it all together (the exhaust not my mind
) until I went to ARP 300 stainless series. Expensive bit of gear but worth it. Good enough for the aerospace industry, good enough for me.

Tinkered with 1991 NA6
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