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Rotor housing resurfacing results

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Old 11-19-13, 10:02 PM
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Rotor housing resurfacing results
Hi I am currently building up my 13b from my 93 rx7 while taking the engine apart I looked at both housings and they were ok but far from were I wanted them to be. After looking at my options for rotor housings I decided to have Freelance motorsports resurface my housing below will be the before pics of the housing.
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Attached Thumbnails Rotor housing resurfacing results-img_20131011_123234.jpg   Rotor housing resurfacing results-img_20131011_123325.jpg   Rotor housing resurfacing results-img_20131011_123335.jpg   Rotor housing resurfacing results-img_20131011_123426.jpg   Rotor housing resurfacing results-img_20131011_123511.jpg  

Rotor housing resurfacing results-img_20131011_123521.jpg  
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Old 11-19-13, 10:06 PM
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more pics
more pics
Attached Thumbnails Rotor housing resurfacing results-img_20131011_124859.jpg   Rotor housing resurfacing results-img_20131011_124925.jpg   Rotor housing resurfacing results-img_20131011_124959.jpg   Rotor housing resurfacing results-img_20131011_125041.jpg   Rotor housing resurfacing results-img_20131011_125057.jpg  

Rotor housing resurfacing results-img_20131011_125124.jpg  
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Old 11-19-13, 10:29 PM
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After pics
Hi here is the after pic of front housing
Attached Thumbnails Rotor housing resurfacing results-img_20131119_201610.jpg   Rotor housing resurfacing results-img_20131119_201551.jpg   Rotor housing resurfacing results-img_20131119_201045.jpg   Rotor housing resurfacing results-img_20131119_201631-2-.jpg  
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Old 11-19-13, 10:44 PM
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How much did they remove?
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Old 11-19-13, 10:51 PM
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more pics
After pics of rear housing
Attached Thumbnails Rotor housing resurfacing results-img_20131119_204153.jpg   Rotor housing resurfacing results-img_20131119_204141.jpg   Rotor housing resurfacing results-img_20131119_203951.jpg   Rotor housing resurfacing results-img_20131119_203938.jpg   Rotor housing resurfacing results-img_20131119_203902.jpg  

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Old 11-19-13, 10:53 PM
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Hi I forgot to ask but they said they will never go out of spec. But I will email them and ask.
Thanks
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Old 11-19-13, 11:00 PM
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Hi overall they did a awesome job and I would recommend them. The housings are far better then they were originally. Another good thing about them is they do a ultrasonic cleaning on the housing which makes them very clean
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Old 11-19-13, 11:03 PM
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Hey ArmyOfOne I noticed from your location on your profile that you are in Washington who would you go to do a porting on these housing and my irons.
Thanks
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Old 11-20-13, 10:44 AM
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Isn't Pineapple up there in the NW? Their (Rob's) porting has proved to be very good overall.
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Old 11-20-13, 11:03 AM
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Oh OK I will ask him
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Old 11-21-13, 09:46 AM
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Depending on what your goals are I would keep the stock ports on the rotor housings. The 13b peripheral exhaust port is VERY large as-is.
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Old 11-21-13, 11:29 AM
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Were those housings sandblasted?
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Old 11-21-13, 01:05 PM
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I may be interested in this service , howmuch was it if you dont mind me asking ?
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Old 11-22-13, 11:26 PM
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Hi the housings were not sandblasted they were ran through a ultrasonic cleaner as for price I think they were $150 each not including shipping good deal I think compared to new housings.
Thanks
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Old 11-23-13, 02:42 AM
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Lets us know how the engine runs when you get it running.

I'm looking towards resurfacing some rotor housings I have and if it turns out well for you, then I'll get them done for my engine build
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Old 11-23-13, 11:11 AM
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Hi im not going to get my engine done in a while but im 99.99% sure that they will run just fine I see people running housing that have chips so they will run just lower compression but the housing I had resurfaced are basically flawless now and there is almost no way of having problems if they are still in spec and the surface is perfectly smooth and square.
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BTW cptpain it sounds like you have had problems in past on resurfaced housings what happened.
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Old 11-23-13, 08:55 PM
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Here is the URL for the website that resurfaced my housings.
Rotor Housing Resurfacing | Freelance Motorsports LLC

And here is there facebook
https://www.facebook.com/FreelanceMotorsports .
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Old 11-24-13, 05:50 PM
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Originally Posted by ricardo.benin
BTW cptpain it sounds like you have had problems in past on resurfaced housings what happened.
No, just wondering. Cause new housings are expensive and if resurfacing is as inexpensive as I've heard, then there's no point in paying $700 for new REW housings.
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Old 11-24-13, 07:17 PM
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Anyone have these running now? Definitely tempting.
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Old 11-24-13, 09:56 PM
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Once I get my engine going I will tell you guys how they hold up with a compression test but that will be a while because I need to get all the seals first and then port the engine.
Thanks
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Old 11-25-13, 07:20 PM
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This has always been the way to go. Dont get new housings unless you absolutely need to.

Think of it as a similar process to honing or reboring a piston engine.

I have not done it, but my father has put together an REW which had the housings resurfaced/honed. It was a red JDM touring and apart from the resurfaced housings, it used stock seals and stock components, stock ECU and stock boost. It ran extremely well and was sold soon after. 2 years later I believe the car still runs fine in Western Australia.
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Old 11-25-13, 08:22 PM
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Hi SA3R who did the resurfacing on your fathers housings.
Thanks
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Old 11-25-13, 09:05 PM
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Originally Posted by mono4lamar
Depending on what your goals are I would keep the stock ports on the rotor housings. The 13b peripheral exhaust port is VERY large as-is.
ALL of the experienced engine builders I've talked to have said this. Sean at A-Spec, Mazdatrix, many more... Really wish I had done that on my own build. Cleaned up stock ports really are the best way to go.
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Old 11-27-13, 02:09 PM
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Originally Posted by Enthalpy
ALL of the experienced engine builders I've talked to have said this. Sean at A-Spec, Mazdatrix, many more... Really wish I had done that on my own build. Cleaned up stock ports really are the best way to go.
I've built a couple monsters...
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Old 11-27-13, 02:25 PM
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^ LOL


Originally Posted by ricardo.benin
Hi the housings were not sandblasted they were ran through a ultrasonic cleaner as for price I think they were $150 each not including shipping good deal I think compared to new housings.
Thanks
They certainly look sandblasted to me. He may ultrasonically clean them but they are sandblasted first.


Is the surface rough on the outside?
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