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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more pics
 

more pics

After pics
 

Hi here is the after pic of front housing

How much did they remove?

more pics
 

After pics of rear housing

Hi I forgot to ask but they said they will never go out of spec. But I will email them and ask.
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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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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.
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Isn't Pineapple up there in the NW? Their (Rob's) porting has proved to be very good overall.

Oh OK I will ask him

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.

Were those housings sandblasted?

I may be interested in this service , howmuch was it if you dont mind me asking ?

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.
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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

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.

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 .

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.

Anyone have these running now? Definitely tempting.

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.
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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.

Hi SA3R who did the resurfacing on your fathers housings.
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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... :nod:

^ LOL


They certainly look sandblasted to me. He may ultrasonically clean them but they are sandblasted first.


Is the surface rough on the outside?