FE3 RX-8 build

[artsvetkov]

Does anyone know if probes FE 2.0 exhaust port spacing is the same as 1.8BP(Miata) I'm thinking of using turbo manifold if the spacing is the same( probe has wider flange, which I need to change the hole pattern)

---------- Post added at 12:14 PM ---------- Previous post was at 12:12 PM ----------

http://phoenix.craigslist.org/nph/cto/5346076369.html

http://phoenix.craigslist.org/wvl/cto/5348998897.html

These cars are worthless with a rotary in them! I want

Yes, in my mind they are better for swaps than Miata and cost the same or less.

[BlackProbe]

Nice!!Ive been waiting for somebody to do this swap!!

[artsvetkov]

Test fitted center gauge pod



I also plan to run Android tablet to display TunerStudio.

[artsvetkov]

My 550lb scales came in, so I weighted the long block and it was around 220lb



I also took off all of the oem cast steel brackets and they weighted around 40lb!
I'm planning on making my own brackets for A/C and Alternator out of 1/4 aluminum.

[dacycle2]

Nice! Pretty light, I am curious about the total weight with flywheel, intake manifold, exhaust headers, and your pulley system. Keep us posted. Thanks

I am impressed with the Major weight loss 40 lbs. That is awesome

[artsvetkov]

Nice! Pretty light, I am curious about the total weight with flywheel, intake manifold, exhaust headers, and your pulley system. Keep us posted. Thanks

I am impressed with the Major weight loss 40 lbs. That is awesome

I'm toren up on the crank pulley issue, KIA pulley has V belt, 4 and 5 rib pulleys on the dampener, I need to use only 4 rib pulley and I also need to mout RX8 trigger wheel. Also Kia dampener runs into steering rack, I have RX8 4 rib pulley and trigger wheel but RX8 don't have a dampener on their pulley set up.

So Kia pulley
PROS:
- it fits
- harmonic dampener
CONS:
- Runs into steering rack
- has unnecessary pulleys = extra weight
- needs a trigger wheel

Rx8 pulley with adapter
Pros:
- clears steering rack(no geometry change)
- oem trigger wheel
- light weight

Cons:
No harmonic dampening

[dacycle2]

Post some pictures of the kia unit. I may have some Ideas for you because I had similar issues. Do not use the rx8 unit. To do this right stick with a harmonic damper.

[artsvetkov]

I looked at Fluidampr and they bring up a good point that OEM dampeners are tuned for a narrow band of frequency that changes if you mod the engine or increase load(boost). Fluidampr uses internal flywheel and fluid, that way the dampening occurres through fluid shear, therefore it works through full frequency range. Down side is that their dampener is over $500 and they don't have one for Mazda 4 cyl, one for DSM 4g63 looks like the closest adaptable option.

Kia uses 6 non symmetrical bolts to attach the pulley to the crank timing sprocket

http://images.apwcontent.com/is/imag...tImage=noimage

[artsvetkov]

Finally got the flanges cut.



There is some port mismatch on cyl 2 & 3, I just blended the edge.






Test fit


There are some issues that need to be worked out due to double flange like length of studs and turbo being too close to fuel lines.

[Dima_MX6]

That is an impressive project, good luck!

After owning the RX-8 a couple of years back I'm not opposed to picking one up again but... something needs to be done with the powerplant haha.

Hoping to see what this thing is capable of!

[dillinr]

Seems relevant...

[ame]https://www.youtube.com/watch?v=aDnP_rWu89c&ab_channel=SupravsSkyline[/ame]

[artsvetkov]

Got civic header


It became good source of 304SS bends for my intake manifold

[josh95mx]

Fits in there pretty nicely. Progress is looking good.

[artsvetkov]

So I ended up chopping of the flange and getting another one cut, I picked up a $400 Harbor Fright TIG for this project. It's been a while since I TIG welded, so nothing to write home about. I used a separate Nitrogen tank to purge the manifold on the inside(China skipped this step and that's why they are prone to crack).



I also angled down the manifold 10* to offset the engine tilt. This gave me better clearance to fuel lines(see green clips).

[artsvetkov]

Word of caution, tilting manifold down 10* brought my compressor housing too close to the engine block and water pump coolant intake. I won't be rewelding the manifold, I will just move the turbo forward by fabing up an up pipe.