Trackspeed Engineering Turbo Kit installed: first impressions. *Real update in post*
06-23-2012, 02:34 AM
#121
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Savington,
Can you let us know how this system spools up compared to the FM II? What about the area under the curve differences?
Erik
Can you let us know how this system spools up compared to the FM II? What about the area under the curve differences?
Erik
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06-25-2012, 01:22 PM
#122
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Our expectations are significant low-end and high-end improvements with the EFR6258 vs. FM's 2560R. We will have some dyno comparison charts between the two turbos later this summer.
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07-30-2012, 04:26 PM
#123
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I haven't had time to read through the whole thread yet so sorry if this has already been answered but when would this kit be out? I'll probably end up picking one up when it comes out.
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07-30-2012, 04:50 PM
#124
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I can not for sure say as I do not work for TSE, but I would expect several more months before we see them. With the EFR's on backorder and the problems they have had I would not expect Savington to be getting any soon.
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07-30-2012, 10:56 PM
#127
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Pricing estimate in post 4 is still accurate today. https://www.miataturbo.net/prefabbed...34/#post872073
There's a fair amount of info in this thread, so if you're really interested, reading this thread from post 1 is a great way to get an idea of what we're planning to offer.
There's a fair amount of info in this thread, so if you're really interested, reading this thread from post 1 is a great way to get an idea of what we're planning to offer.
0
07-31-2012, 12:08 AM
#128
The GT25 turbine has to be the worst of the Garrett offerings. I bet is was designed on a commodore 64. The turbo Sav is putting together is in another league altogether. I would expect substantial gains on both ends of the RPM band.
0
07-31-2012, 12:24 AM
#129
You make it sound like incremental gains in turbo efficiency are a night and day difference.
0
07-31-2012, 03:13 AM
#132
Efficiency of the compressor wheel is not the issue. The turbine section is where that turbo falls far short. It's well documented.
Last edited by k24madness; 07-31-2012 at 07:21 AM.
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07-31-2012, 07:18 AM
#133
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Pricing estimate in post 4 is still accurate today. https://www.miataturbo.net/prefabbed...34/#post872073
There's a fair amount of info in this thread, so if you're really interested, reading this thread from post 1 is a great way to get an idea of what we're planning to offer.
There's a fair amount of info in this thread, so if you're really interested, reading this thread from post 1 is a great way to get an idea of what we're planning to offer.
0
07-31-2012, 09:04 AM
#134
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Red is the EFR 6258, blue is a GT2871R, both in .64 A/R.
Source of data: BorgWarner EFR 6258 Turbo - Full-Race.com
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07-31-2012, 02:32 PM
#138
I think they were running lower boost. I was at like 18-19psi up top and 15psi at 3500rpm.
Still, the point is that the curves do NOT intersect. I have more faster spool *AND* more power. My torque curve is like a hat for their torque curves.
Still, the point is that the curves do NOT intersect. I have more faster spool *AND* more power. My torque curve is like a hat for their torque curves.
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07-31-2012, 02:39 PM
#139
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