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We stopped waiting about two years ago. Could be tomorrow, could be never. JR is quiet on the subject so who knows. Someone else told me the brackets & pulleys might be available, just not the rest of the system. Dunno if that's true or not. I have wto production TSE kits.
I talked to JR a few months ago about their rotrex setups for something else silly I was thinking about. It seemed like then at the time the hold up was get CARB. They were not going to release the setup until they had that, and they had several other larger projects to get done for OEM's before they would get back to working on the miata stuff. I am not sure how accurate or not this is, but I spoke to an engineer there for about 20 minutes and it did not seem like he was talking out of his ***.
We stopped waiting about two years ago. Could be tomorrow, could be never. JR is quiet on the subject so who knows. Someone else told me the brackets & pulleys might be available, just not the rest of the system. Dunno if that's true or not. I have wto production TSE kits.
Andrew, yeah you're right, true peak torque is higher, but we see 95% of the final peak torque number typically quite low though, which was what stuck in my mind. This the setup currently in my car and you can see what I'm talking about (sorry for the terrible pic):
Per earlier discussion on K vs. Rotrex, vs. turbo: yeah, N/A power will almost always cost more. The obvious benefits are less weight, less heat, less complexity, and fewer failure points. Emilio, you've certainly proven the value of this on your N/A BP builds. Our core market is all the guys that want that N/A life. The TSE and Rotrex stuff is definitely top-notch. I consistently recommend the TSE kit any time someone says they want a turbo BP setup.
Also worth noting - most NB guys these days are spending about $8500 for a basic K24A2 swap and making north of 220whp if they use our reflashed ECU (even when re-using their existing 2.25" exhausts). We've worked very hard to increase affordability, quality, and simplicity over the last year. But yes, an NA owner wanting a full custom stainless 3" exhaust setup can quickly spend $10k, and usually will see 225whp, 180wtq with a full tune.
__________________ KPower Industries
Home of the original KMiata Swap
Agreeed, built BP vs K. I keep going back to a turbo 1.8 but all the posts on here about cooling issues and turbo hardware make me cringe. Sure most of these issues have been thought out and potentially solved but OEM reliability seems hard to get..
It's 2017, there's no excuse for a turbo miata to be overheating/unreliable on track. I ran a 3 hr. enduro last month. Stock 1.6, FM manifold, 12 PSI, 225 whp/190 lb/tq, every single shift at 7K for 3 hours. Mosport, 3/4 mile, 25 sec./uphill back straight. As long as you have a cast manifold from FM or Trackspeed as the foundation, the rest of the recipe for OEM reliability is right here and it's fairly simple.
I'm glad there's all these swap options out there, something for everybody. There's a local NA with an S2K powertrain that sounds glorious, I do wish my car had that scream.
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