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SA22c Renesis rotating assembly killer bee swap

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SA22c Renesis rotating assembly killer bee swap

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Old 07-05-18, 07:03 PM
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Just got off the phone with Carlos at CLR Motorsports about my renesis rotors and counterweights a bit ago and just got these pics of them with final balancing corrections and numbers. Just counting the amount of corrections itís obvious that they were a massive pain in the dick to do, but Carlos is the best at what he does and exactly why I sent them to him











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Old 07-05-18, 07:32 PM
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Left out another important part, the rotors were side clearanced and gears were precision ground down as well, this added some cost, but these are now full race rotors which will also now require using a competition oil pump (Under Carlosí recommendation)
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Old 07-09-18, 10:37 PM
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Just got my rear renesis stationary gear and custom front cover oring recess insert in the mail today, now I can use an rx-8 front cover metal gasket no problem and the rear stat gear now just needs the oil port ported out a bit and it will be ready to go




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Old 07-24-18, 11:53 PM
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A few updates. Ended up just going with a used OG oil pressure reg that I bought through Erick Krewson at Atkins rotary for a great price, measured my oil pump rotor and it looks to be a 17.5mm (showed 17.3mm on calipers, but I doubt it's within calibration spec - can't fit a 17mm spanner over it, but can fit an 11/16 spanner over it snuggly which is exactly 17.5mm). Also decided to strip, paint and wrap my Racing beat header with titanium wrap because my dumbass left my RB heat shield back in Utah. I know that heat wrap is terrible for headers, but with the prep that was done before wrapping, it should at least last me 1-2 years which by that time I'll have a brand new one on hand anyway, so all good there. Other than that my custom killer bee porting template should be here on or before Friday, so planning on porting the irons Saturday and my rotors should be here by the end or middle of next week. Housings should be back from being resurfaced by the end of next week and if all goes as planned I'll be ready to assembly the engine when they get here





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Old 07-27-18, 05:34 PM
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Got a few new bits today. Custom Killer Bee porting template finally got here which was made by Nader Sharif at Built2Apex by scanning my old front iron and basing the template off of that but with straighter cleaner lines (I'm pretty sure the irons had been freehanded previously - not that there's anything wrong with that), but it will definitely be nice to have all perfectly matched ports for this build. Also got a set of SS hex bolts for the front cover to dress up the engine a bit and also got a set of SS water jacket liners. But one thing that I've been wondering since the beginning of this engine build idea is how exactly the genesis rotors line up with the killer bee ports, so I took my new template and a stock rotor and plopped them on an end plate and took a few pics of the rotor at different stages of the intake port.







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Old 07-30-18, 01:50 PM
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Do you have any Rx7 rotors you could put under the template to compare?

curious to see how the side seal location looks like under the ports.

That is a pretty big street port. The rules on scca engines is that you cant see the intersection of the corner and side seal from the port opening, this goes almost to the apex seal lol.
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Old 07-30-18, 02:06 PM
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I donít have any non-renesis rotors with me here in Texas unfortunately, but Iíd like to see the comparison as well when I do get back to Utah. But I guess if you measure where the Rx8 side seals sit vs older rotors and then scale to the photos, that should give you a good idea.

Also I didnít look into any race regulations before deciding on this route for my engine build, this is just for my daily street car so if my ports breaks some rules and I canít participate in something over it then Iím fine with it.
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Old 07-30-18, 02:12 PM
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I also finished porting and polishing the irons on Saturday. The polish isnít a mirror finish, but I wasnít going for that at all as this engine is going to be and remain NA, so a mirror finish isnít going to do much other than get likes on IG or something.



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Old 07-30-18, 08:56 PM
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Old 08-04-18, 01:14 AM
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New FD front regulator spring showed up. Ordered based on the info available regarding increased oil pressure which is 3 M6x12 hardened washers in the rear reg and 1 m6x12 hardened washers in the front reg (WITH an FD front spring)

*I have plenty of RX-8 and other 13B front springs, but no info to refer to in order to add the correct amount of shims to get my desired oil psi

*2nd pic is an S1 RX-8 front spring next to the FD spring



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Old 08-07-18, 09:31 PM
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Was looking over my replacement irons and noticed that pitting in the water seal area was pretty bad. I didn't really give this much thought until a few weeks ago, but I spoke with Erick Krewson at Atkins rotary about it and he suggested using devcon to fill in the pitted areas, so I ordered a small tube of it, put it on the pitted areas and removed the excess with a razor blade, let cure, lightly sanded with 150 grit to remove the bulk of cured devcon and finished off with 2000 grit and now the pitted areas are as smooth as can be and should be just fine now (The rear iron which I'm reusing had no visible pitting). Now all that's left with the irons is smoothing out the ports a bit more and they're ready to go

*First pic is before filling with devcon









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Old 08-10-18, 01:14 AM
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My God, this is phenomenal work. A very thorough job. I am really digging your approach and attitude toward it all. I really can't wait to see you put it together and get it started.

On a lighter note, I particularly like how you took the engine 900 miles to continue working on it. I used to do that all the time when I used to travel a lot.
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Old 08-10-18, 02:32 AM
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Originally Posted by diabolical1 View Post
My God, this is phenomenal work. A very thorough job. I am really digging your approach and attitude toward it all. I really can't wait to see you put it together and get it started.

On a lighter note, I particularly like how you took the engine 900 miles to continue working on it. I used to do that all the time when I used to travel a lot.

I just really wanted something to do while Iím out here, it keeps me busy in my free time and itís what I enjoy doing most anyway. Iím more than likely getting my orders extended for an entire year so as long as that goes through I can relax a bit and not feel so rushed to get this engine together with little/no time to spare (rotors and housings arenít back yet and current orders end in early September so Iím on a bit of a time crunch in that case). Weíll see where things are at within the next week or so though
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