Trackspeed Engineering Turbo Kit installed: first impressions. *Real update in post*
#681
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Ask and ye shall receive. This is the same exact setup that produced ~135kpa on the dyno this morning. Low-boost can (179282), 5 turns of preload on the flapper (as few as you can get and still get the nut all the way on the actuator rod). I swapped to an off-the-shelf catted 3" Enthuza and started autotuning on the way home tonight. Peak boost is 147.4kpa, so I'll call that 7psi.
This pull is 2-3-4 from a 6-speed/3.636 combo. Butt dyno says ~185whp. No creep whatsoever.![Deal With It](https://www.miataturbo.net/images/smilies/dealwithit[1].gif)
6ENsM8Y.png
I'm well aware that several others have had creep issues, but it never made any sense to me, and it really doesn't make any sense now. If I had to throw a guess out there, I would say that the wastegate can alignment is really, really easy to screw up. ~2 degrees either way and the flapper would get pulled up and bind, and you saw that a binding wastegate would screw stuff up on Gordon's car.
Anyway, it's totally doable, and I'd love to see a couple other people get their setups dialed in like this one is. There's no reason why stock motor crew can't enjoy EFR goodness.
This pull is 2-3-4 from a 6-speed/3.636 combo. Butt dyno says ~185whp. No creep whatsoever.
![Deal With It](https://www.miataturbo.net/images/smilies/dealwithit[1].gif)
6ENsM8Y.png
I'm well aware that several others have had creep issues, but it never made any sense to me, and it really doesn't make any sense now. If I had to throw a guess out there, I would say that the wastegate can alignment is really, really easy to screw up. ~2 degrees either way and the flapper would get pulled up and bind, and you saw that a binding wastegate would screw stuff up on Gordon's car.
Anyway, it's totally doable, and I'd love to see a couple other people get their setups dialed in like this one is. There's no reason why stock motor crew can't enjoy EFR goodness.
#682
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Well that's really good news. Because G's car was a nightmare in that regard, and even after all that effort I'm not 100% satisfied with it. Perhaps it's just that janky bumpy housing that's causing it, who knows.
I've seen plenty of applications where it gets blown open up top (these are MAN BOOST cars, obviously) but it was a 1st for me to see it bind, creep, and then just be really shaky in boost even with the medium can.
Yours looks way smoother.
I've seen plenty of applications where it gets blown open up top (these are MAN BOOST cars, obviously) but it was a 1st for me to see it bind, creep, and then just be really shaky in boost even with the medium can.
Yours looks way smoother.
#683
#685
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:
I'm well aware that several others have had creep issues, but it never made any sense to me, and it really doesn't make any sense now. If I had to throw a guess out there, I would say that the wastegate can alignment is really, really easy to screw up. ~2 degrees either way and the flapper would get pulled up and bind, and you saw that a binding wastegate would screw stuff up on Gordon's car.
:
I'm well aware that several others have had creep issues, but it never made any sense to me, and it really doesn't make any sense now. If I had to throw a guess out there, I would say that the wastegate can alignment is really, really easy to screw up. ~2 degrees either way and the flapper would get pulled up and bind, and you saw that a binding wastegate would screw stuff up on Gordon's car.
:
IMO this is the biggest issue with the EFR turbos and DIY manifolds. If I was to do it over again with a DIY manifold, I'd build it with an external wastegate and forget about the internal wastegate - it's one less unknown to deal with that really makes or breaks a build.
#687
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Just a quick FYI on pricing for those of you on the fence. The 10 or so of you who got in on the GB in June are my special friends, so you guys will get discounted pricing on everything else that we release for the kit, including the EFR-specific inconel studs, downpipes, oil/water line kits, and the intercooler kit when we release that in the spring.
If you are ordering a kit today, you're also going to qualify for discounted pricing on some of those same items. It won't be quite as deep of a discount, and it may not be on every item (the cheaper stuff may not be discounted at all), but it will be something.
If you wait until we have manifolds in stock, you'll get your parts immediately, but you'll have to pay for the privilege.
IOW, get off the fence and get in.
If you are ordering a kit today, you're also going to qualify for discounted pricing on some of those same items. It won't be quite as deep of a discount, and it may not be on every item (the cheaper stuff may not be discounted at all), but it will be something.
If you wait until we have manifolds in stock, you'll get your parts immediately, but you'll have to pay for the privilege.
IOW, get off the fence and get in.
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#690
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^^ Asking the important questions I was thinking about this the other day, but didn't follow through. It would be awesome to be able to get the manifold and DP sent straight to Swaintech or another ceramic coater before they come to me.
Eventually I'll get around to taking the turbo apart and sending the turbine housing to be coated on the outside.
EDIT: I got worried for a second because there was so much nut swinging going on over that other cast manifold. I thought the site went crazy and people lost their minds.
Eventually I'll get around to taking the turbo apart and sending the turbine housing to be coated on the outside.
EDIT: I got worried for a second because there was so much nut swinging going on over that other cast manifold. I thought the site went crazy and people lost their minds.
#691
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At some point, yes. Keep in mind that the material (347SS) already keeps more heat inside the manifold.
Ceramic coatings are hard to do correctly. 80% of the coatings I see on cars are cracked or flaked off really quickly. There are only two, maybe three companies that I would trust to coat a manifold and have it hold up over time. I will probably leave coatings to you guys to start out with, and make some recommendations for sources.
Swain Tech Coatings | Industrial Coatings | High Performance Racing Coatings | Technical coatings to solve problems of heat, wear, corrosion, and friction
Embee Performance
Ceramic coatings are hard to do correctly. 80% of the coatings I see on cars are cracked or flaked off really quickly. There are only two, maybe three companies that I would trust to coat a manifold and have it hold up over time. I will probably leave coatings to you guys to start out with, and make some recommendations for sources.
Swain Tech Coatings | Industrial Coatings | High Performance Racing Coatings | Technical coatings to solve problems of heat, wear, corrosion, and friction
Embee Performance
#692
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It is very easy to send things off to Swain.
I don't know tons about these turbos for the Miata, but do they manage boost well or is an external wastegate an option? I run a re-routed EWG on my Outback and love the easy to nail boost and frankly it is quieter than some intake systems.
I don't know tons about these turbos for the Miata, but do they manage boost well or is an external wastegate an option? I run a re-routed EWG on my Outback and love the easy to nail boost and frankly it is quieter than some intake systems.
#693
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It is very easy to send things off to Swain.
I don't know tons about these turbos for the Miata, but do they manage boost well or is an external wastegate an option? I run a re-routed EWG on my Outback and love the easy to nail boost and frankly it is quieter than some intake systems.
I don't know tons about these turbos for the Miata, but do they manage boost well or is an external wastegate an option? I run a re-routed EWG on my Outback and love the easy to nail boost and frankly it is quieter than some intake systems.
#695
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Awesome and I would agree on complexity...well, and esp. on cost. It has just not been my experience with past turbo applications, esp. if you remove a cat.
#700
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The only thing I worry about with internal waste gate is the problem I have had with my turbo because of the way my front housing is clocked (discharge at approximately the 3 o'clock position). I am worried that I will need to completely start from scratch with my charge piping rather than just adjust. Mind you, this is because I had to do something different, but I like it. Either way, EFR is in my future.