Further Thread on Oil Supply
10-30-2013, 12:28 PM
#21
Retired Mech Design Engr
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The ones by Nitro and Sturovo are hot side. I guess you are asking about the SP versions. For me, I'm wanting to use a journal brg unit. Agree that BB would be less of an issue.
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10-30-2013, 12:45 PM
#24
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MX5CarTalk.com NB SP / SE (Mazdaspeed) MX-5 Miata Comparison Claims a GT2560R @ 7 psi or GT2860R @ 5 psi.
Some Pics Here: New Car Test - Mazda MX-5 SP Turbo - AutoWeb New & Used Cars first one looks to show braided oil feed from hot side.
Some Pics Here: New Car Test - Mazda MX-5 SP Turbo - AutoWeb New & Used Cars first one looks to show braided oil feed from hot side.
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10-30-2013, 12:55 PM
#25
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The description of "The Shortcomings" sounds exactly like someone running a powercard or other piggyback controller.
Someone use magic and find these two images in higher resolution. It seriously looks like a braided line pointed straight UP and then running down to the turbo.
Someone use magic and find these two images in higher resolution. It seriously looks like a braided line pointed straight UP and then running down to the turbo.
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11-02-2013, 08:51 AM
#30
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I have coming:
1/8BSPT to -AN4 fitting for head port
-4AN 90* to -4AN straight hose
-4!N to 10x1.5 fitting for turbo, with built in 1.5mm restrictor
The only thing I'm missing is a Tee.
The plan is to connect a gauge to the hose and map pressure vs RPM dead-headed. Then add the Tee and the restricted "inlet" piece, and the CHRA, and remap the pressure with the oil flowing through the (non-spinning) turbo. This should pretty much tell the extent that this set-up will starve the valve train. I should be able to get some feel for the flow-rate as well, but I don't know what is right amount. I will post cups per min, I suppose, along with video.
The timing on this will depend on my ability to source the Tee and whatever connections I need to add the gauge.
1/8BSPT to -AN4 fitting for head port
-4AN 90* to -4AN straight hose
-4!N to 10x1.5 fitting for turbo, with built in 1.5mm restrictor
The only thing I'm missing is a Tee.
The plan is to connect a gauge to the hose and map pressure vs RPM dead-headed. Then add the Tee and the restricted "inlet" piece, and the CHRA, and remap the pressure with the oil flowing through the (non-spinning) turbo. This should pretty much tell the extent that this set-up will starve the valve train. I should be able to get some feel for the flow-rate as well, but I don't know what is right amount. I will post cups per min, I suppose, along with video.
The timing on this will depend on my ability to source the Tee and whatever connections I need to add the gauge.
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11-02-2013, 09:03 AM
#31
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The SP was made in limited numbers, there were 100. There is one that is white, there is only 1 white one, it is known as the Unicorn.
They use a GT2560 and were genuine mazda vehicles. from the dealership with full regular warranty, they are the fastest MX5 ever released from the factory by FAR, they bend rods in OEM form.
Dann
They use a GT2560 and were genuine mazda vehicles. from the dealership with full regular warranty, they are the fastest MX5 ever released from the factory by FAR, they bend rods in OEM form.
Dann
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11-02-2013, 01:16 PM
#35
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From reading this thread, and the previous, I'm still skeptical. I'm not saying for sure it's a bad idea, just the evidence isn't there. Yes dann has done this a lot, and the SP seems to do it, but that really isn't a good sample of data. Seems like Mazda likes to make small changes between years to various things, and it's very possible that although this may work great on some year engines, it may fail miserably on others.
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