1.8L DIY Turbo Set-up with BorgWarner EFR-6258
Going to an individual runner collector-style manifold would likely improve performance across the board. Earlier spool and greater peak power would be evident.
Nice car.
Nice car.
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Faeflora,
I'll try to snap some good pics of the exhaust. Most of the hardware was from Summit Racing. Part numbers of the specific components can be found in my parts list.
8. Exhaust – Custom w/ 2 Resonators
I'll try to snap some good pics of the exhaust. Most of the hardware was from Summit Racing. Part numbers of the specific components can be found in my parts list.
8. Exhaust – Custom w/ 2 Resonators
a. Custom 3.5 – 3.0” Downpipe
b. Resonator #1 (Summit p/n WLK-24238)
c. Resonator #2 (Summit p/n WLK-24219)
d. Flex Pipe (Summit p/n JEX-FLX3010B)
e. Exhaust Wrap 1” (Summit p/n DEI-010120)
f. O2 exhaust bungs (Summit p/n 35-4005)
g. Heatshield for Underside of Hood (Summit p/n DEI-010401)
h. Gasket, 3-bolt exhaust (Summit p/n SUM-610130)
i. Flange, 3-bolt exhaust (Summit p/n SUM-G4761)
b. Resonator #1 (Summit p/n WLK-24238)
c. Resonator #2 (Summit p/n WLK-24219)
d. Flex Pipe (Summit p/n JEX-FLX3010B)
e. Exhaust Wrap 1” (Summit p/n DEI-010120)
f. O2 exhaust bungs (Summit p/n 35-4005)
g. Heatshield for Underside of Hood (Summit p/n DEI-010401)
h. Gasket, 3-bolt exhaust (Summit p/n SUM-610130)
i. Flange, 3-bolt exhaust (Summit p/n SUM-G4761)
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Junior Member
Joined: Jan 2009
Posts: 92
Total Cats: 4
From: Floyds Knobs, IN
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Thread Starter
Newb
Joined: Oct 2006
Posts: 14
Total Cats: 1
From: Western NC
Yes, I fully agree with all the comments regarding manifold design. My preference would be an individual runner exhaust manifold feeding a twin-scroll EFR turbocharger.
This very well could be my project next winter!
Thanks for all the feedback.
This very well could be my project next winter!
Thanks for all the feedback.
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You had me at "Borg Warner". Also, are you worried about your internals at all? I got my tuner to stop at 250whp cus I haven't touched my internals and the general consensus was that you shouldn't go above 250 on stock internals. I was wondering if its ok to go higher under certain conditions?
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Thread Starter
Newb
Joined: Oct 2006
Posts: 14
Total Cats: 1
From: Western NC
I actually did test both the 6258 and the 6255. While the 6255 has slightly better inertia, the 6258 has superior turbine efficiency. In the end the spool was the same and the 6258 was good for about 10+ more power on the top end.
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Thread Starter
Newb
Joined: Oct 2006
Posts: 14
Total Cats: 1
From: Western NC
You had me at "Borg Warner". Also, are you worried about your internals at all? I got my tuner to stop at 250whp cus I haven't touched my internals and the general consensus was that you shouldn't go above 250 on stock internals. I was wondering if its ok to go higher under certain conditions?
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Thread Starter
Newb
Joined: Oct 2006
Posts: 14
Total Cats: 1
From: Western NC
I wish I would have seen your post prior to the Mitty. I parked the car in the Mazda corral with the hood up. I would have like to have seen some other turbo miatas.
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Newb
Joined: Mar 2011
Posts: 1
Total Cats: 0
Sweet EFR setup, I've really been thinking about doing a 94 miata build for some time now but I just bought a 08 mazdaspeed3 I'll have to put those plans on hold for now.
Your profile says western NC, I'm from the Asheville area myself if you wouldn't mind I'd like to check it out sometime.
Your profile says western NC, I'm from the Asheville area myself if you wouldn't mind I'd like to check it out sometime.
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