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Ethaniscool's 13B Miata Swap Thread.
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Hi guys! So new here but not new to Miata's. I've been on Clubroadster for a number of years but have not been all that active.
Anyway, I've Been wanting to build a Rotary miata for as long as I've had one. I remember seeing threads on Clubroadster of people saying that's the engine that should have come in Miata's. So once I heard one. I knew In my mind I would build one. So after getting a free shell, and finally being at a point in my life that I'm not living check to check. This is the time. As my favorite speaker says. "There is never the perfect time to do a great thing" So lets make it Happen. Said Shell. Attachment 624856 It was a Ex Spec Miata that was left for dead. Asked the owner how much he wanted for it and he said "Free and I can deliver anywhere to get my wife off my back" haha so we loaded it up! So next on the List was of course a engine. I used Tiger JDM out of Canada and yea BIG regret. Long story short. Horrible seller. Gave me Wrong parts, tried to Lie and say they didnt. Charged me for parts that were wrong and incomplete. Zabi is the worst human I've ever dealt with. So NEVER BUY FROM TIGER JDM EVER!!!!!!!!!!!!!!! Said engine. Attachment 624857 After that, reading a lot of 13B swap threads everyone said the part that they would have done different on almost all of them was getting a V8roadsters Tube Subframe. So i obliged. Fantastic Build quality, only 25lbs, and great customer service. They will have my business again. Attachment 624858 Then I had to look at the transmission side of things. I could have gone full FC drivetrain but given that I have a 1.8 diff and 05 axles and the fact that I wont be going over 250hp Stock miata stuff is fine. But in order to do that you need a FC bell housing and Shortening the output shaft. So found a guy local with one and snagged it for dirt cheap. Attachment 624859 Ill be giving a machinist this for the measurements. Attachment 624860 So the shell literally had nothing in it. Not a Nut or Bolt on it. So I snagged some parts from my old car to get it rolling. And bought another miata for parts from a buddy for next to nothing. Attachment 624861 Attachment 624862 Attachment 624863 This thing is a heap. But still has great parts. Well Important parts haha Attachment 624864 Lastly I need to wire it all up and Need a ECU and ignition. Found another guy that did the swap before and is parting it out. So I snagged a Apexi Power FC Ecu, and meshed miata to Rx7 Harness, and Ignition coils and associated stuff. Paypaling him as I type this and it should be shipped out tomorrow morning! Attachment 624865 Attachment 624866 Attachment 624867 So this is where I am right now. Next on the List is Clutch Flywheel Need a 54mm socket. Radiator + Fans Intercooler setup. Thanks For looking guys. |
Nice intro! Haha. Subframe is looking goood aye :) Keen to see the progress
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welcome to the board. :)
i really like where this seems to be going. i really like that subframe, too. i will be watching for the progress of this build. this is a true, honest-to-God ground-up build. please document as much as you can. good luck. |
Welcome to the forum, that subframe is awesome. Good luck with the build
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Great intro! Im loving this, will be keeping an eye ou for updates. What are you planning to use the car for?
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Originally Posted by WANKfactor
(Post 11921291)
Great intro! Im loving this, will be keeping an eye ou for updates. What are you planning to use the car for?
:icon_tup: |
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So I took a afternoon, to start on the car.
Loaded up with Wheels, wiring, New Clutch. Attachment 624514 I decided to start on the front subframe. Needed to switch the control arms and put the new Poly bushings in. Sadly it started raining so I had to take it inside. Attachment 624515 Had a little help from Veda Attachment 624516 Attachment 624517 Attachment 624518 I ended up Bending two Upper control arms trying to take the bushings out but luckily the parts car came in handy. So Instead of the cheap Home Depot tool. Good ole fashion fire! Attachment 624519 Then I pulled the Parts steering rack to use the boots that were still in great shape. Attachment 624520 Attachment 624521 Attachment 624522 Next I pulled the dash and started labeling as Ill be using most or all of the body harnesses. Attachment 624523 Attachment 624524 And I started to pull the Steering column Attachment 624525 |
Originally Posted by Ethaniscool
(Post 11922465)
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Are you going to use the stock PPF or build mounts? I used the same subframe with stock PPF on mine. The driveline ends up angled to the point where I had to notch the firewall above the tunnel and the diff bushings are at an angle. I'm hoping to replace the bushing with spherical bearings as the rubber is going to get destroyed.
I think if I were to do it again I would replace the PPF with diff and tranny mounts and move the engine back an inch or two to clear the steering rack. Good luck with the build. If you have any questions or want any pictures of how I did anything on mine let me know. |
Looking good! Subscribed to see how this build comes along. If you get stuck or looking for pointers post up. There's a few of us running around that have completed the swap. Also a Rotary Miata group on FB.
Going to be high points and low points of the build, don't let the low points get the better of you. So worth it once it's completed. |
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So finally an update!
I've been ordering up parts for this and my daily and just trying to find time to get to the car since It's been raining really every single afternoon so cant really get to the car as its just under a carport and not the Garage yet as we still have another project 240 in there. But here is my lunch and a few parts from the other day. Got a ISIS radiator plus fans for dirt cheap SS brake lines Brand New Starter. And A new OEM intercooler But i am super excited about my knuckles i just got from the same guy that I got the ECU from. They should be here Tomorrow! Attachment 623378Attachment 623379 Attachment 623380 Attachment 623381 |
Subscribed! Always wanted to do this with my NB
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So I got to work on the car today! I got the knuckles in so got to instal them. I didn't do any measurements but Its a obvious difference.
But also got my dash in and all the steering together. The previous owner was a idiot and I almost couldn't save the shaft but I ended up being able too. Glad I could finally have the car start looking like a car. Next up is changing the gas tank also found out I got the wrong starter, so Ill have figure out if there are differences in years. Cause the rx7 bellhousing I've got, I don't have any info on the year. Attachment 623280 Attachment 623281 Attachment 623282 Attachment 623283 |
Just a reminder before anyone says anything. This build is not to be Pretty in any way. Or be a 400hp insane bridgeport huge turbo. Stock motor should be just fine for me! I used to drift a Stock 1.6 perfectly fine, so 215+hp is going to be a treat! I'm building this to have loads of fun with my friends at our local drift events. The outside will be all one color but as for painting the bay, and prepping everything just so. That is not in this builds immediate future. I just want to have fun and shoot some flames.
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Alright so more updates! Been slowly chipping away at the car. I started to tear into the transmission bellhousing swap I found out that the Rx7 turbo II and Na transmissions are a little different, 20mm different. So now in search for one of those.
Said issue. Its a setback but I also learned something. No big deal. Attachment 622912 Then I got on the new rear wheels on as well! Attachment 622913 Today was super productive getting rid of the parts car. A buddy with a trailer came haul her off to the scrap yard! Attachment 622914 When I checked the mail I was greated with my new steering wheel hub, New Hardtop bolts and my fuel pump! Attachment 622915 Attachment 622916 Attachment 622917 And I retapped all the fender bolts because they had alot of surface rust in them :)Attachment 622918 Attachment 622919 Attachment 622920 HArdstyle for days. And a old photo of switching drivetrains. Attachment 622921 |
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So I finally have my shell in town! Can't wait to get started on everything!
When we got it on the forklift i was having some anxiety. I DID not want it to fall. But Its at my work, along with most of my parts so first things first is getting it rolling. The front will be cut off for the tube front and thinking of going full cage now. May as well at this point. Still on the list is finding a FD intake Mani with Throttle body sensor. I found a few new sensors but they are running about $200 on atkins rotary. Attachment 615464 Attachment 615465 |
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Got some more work done the last few days. Found a FD upper and lower intake manifold for a steal on a rx7 Facebook group so jumped on it quick!
I have the subframes and wheels on the car now, and will be bringing it to the shop to start the tube front and mounts! I'll have photos of the subframes going on soon. Today I test fitted the intake manifold with the adapter and it looks good. Ill need to find a solution for the oil fill cap cause it wont clear the intake piping. Attachment 614296 The Full "Wiring harness" that was claimed the engine came with. Attachment 614297 Emissions and old Upper Intake Manifold Attachment 614298 Attachment 614299 Attachment 614300 More pictures soon. |
Wait a minute, your not worried about how the car looks, but you retapped the fender bolts?
Oxy much? Lol |
Originally Posted by lduley
(Post 12040388)
Wait a minute, your not worried about how the car looks, but you retapped the fender bolts?
Oxy much? Lol Yea makes zero sense. I now care about looks though. Full Painted Bay, and respray of the whole car is happening now. |
And my Buddies Mazdaspeed3
We just went out and shot for a bit since it was a nice day. https://farm2.staticflickr.com/1643/...80dc9f3d_z.jpgmiata day-62 by Andrew Storm, on Flickr https://farm2.staticflickr.com/1538/...03b9313c_z.jpgmiata day-72 by Andrew Storm, on Flickr https://farm2.staticflickr.com/1521/...ebc263e1_k.jpgDowntown3 by Ethan Castille, on Flickr https://farm2.staticflickr.com/1702/...723ed800_k.jpgDowntown5 by Ethan Castille, on Flickr https://farm2.staticflickr.com/1503/...c0428a23_k.jpgDowntown7 by Ethan Castille, on Flickr https://farm2.staticflickr.com/1592/...a15a19da_k.jpgDowntown17 by Ethan Castille, on Flickr https://farm2.staticflickr.com/1708/...1f91969f_k.jpgDowntown20 by Ethan Castille, on Flickr |
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Then today. I got the car under the cover and copped that front end off and prepped the bay by making a little more room.
Attachment 614219 Attachment 614220 Attachment 614221 Attachment 614219 Attachment 614223 Attachment 614224 Attachment 614225 |
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