rotormotor Posted July 16, 2023 Share Posted July 16, 2023 $o it begin$.. Quote Link to comment Share on other sites More sharing options...
rotormotor Posted July 18, 2023 Author Share Posted July 18, 2023 Have a few specific rotor engine rebuild questions/queries seeing its my first rebuild. Plates ported, bridge secondary, extended primaries and they off to get resurfaced and hardened. Existing rotors off to get balanced. New Apex seals, S6 corner seals/springs and Rx8 front and rear stat bearings. O ring kit weeks away from Japan. New rotor bearings (can't remember FD or Rx8) Since decided to replace all oil controls springs and seals, and side seals where clearances are checked. Suggesting new high pressure Rx8 oil pump. E shaft balance but if I decide to go lightened flywheel, need Rx8 E shaft and counter weight. Gonna add another heafty chunk of change if I go this route, any thoughts if lighten flywheel is a no brainer? Cheers. 2 Quote Link to comment Share on other sites More sharing options...
jakesae101 Posted July 24, 2023 Share Posted July 24, 2023 There is Kapiti vapour blasting http://www.kapitivapourblasting.biz 1 Quote Link to comment Share on other sites More sharing options...
dabuzz Posted July 25, 2023 Share Posted July 25, 2023 you aren't making sense here "E shaft balance but if I decide to go lightened flywheel, need Rx8 E shaft and counter weight" get your existing rotors, shaft and front + (new) rear counterweight and send off for balancing as one unit after any machining you want to do. You dont need an rx8 shaft how much are you taking off by surfacing plates? if only a small amount you don't need to harden again. if youre taking off heaps, its possible the plates arent fit for purpose anyway. 1 Quote Link to comment Share on other sites More sharing options...
rotormotor Posted July 25, 2023 Author Share Posted July 25, 2023 Plates lightskim only before hardening and I questioned needing Rx8 e shaft rather then reuse mine if fit lightened flywheel and counterweight...he's ported the end plates so clearly must be fit to use as nothing negative been mentioned. He said halfpound lighter and when i decide my direction as you say those components need go off to balancing. O ringkit ex japan weeks away..rest of seals/springs arrived today along with a $1.6K pricetag I see billy hols latest YT clip shows a gold LHD Rx2..owner made a few pressed Rx2 boot floors, one of them was yours? 1 Quote Link to comment Share on other sites More sharing options...
rotormotor Posted July 25, 2023 Author Share Posted July 25, 2023 5 hours ago, jakesae101 said: There is Kapiti vapour blasting http://www.kapitivapourblasting.biz Cheers There seems to be one in seaview steam and sand offer vapour too. Quote Link to comment Share on other sites More sharing options...
dabuzz Posted July 25, 2023 Share Posted July 25, 2023 Just use your existing shaft, don't worry about being lighter, it's a street car, you need torque Quote Link to comment Share on other sites More sharing options...
rotormotor Posted July 25, 2023 Author Share Posted July 25, 2023 2 hours ago, dabuzz said: Just use your existing shaft, don't worry about being lighter, it's a street car, you need torque I assumed a done thing when engine open & plan to lighten flywheels, thanks. Think I regret not doing the flywheel thing? Quote Link to comment Share on other sites More sharing options...
RUNAMUCK Posted July 25, 2023 Share Posted July 25, 2023 Find an auto rear counterweight, then you can bolt on a neutral aftermarket flywheel. I'tl need to from an engine weight the rotors as yours. Quote Link to comment Share on other sites More sharing options...
dabuzz Posted July 25, 2023 Share Posted July 25, 2023 Just to be clear. Use your existing shaft rotors and front counter weight Buy s4/5 type rear counter weight Buy new lightened flywheel Send whole lot to be balanced together Quote Link to comment Share on other sites More sharing options...
rotormotor Posted July 25, 2023 Author Share Posted July 25, 2023 Yip, that the route Im taking now abeit using my original shaft. Having never build a wankel but knowing enough to be dangerous, I'm getting more imformed daily it seems. Builder has account at M&M racing and NZperformance Palmy will be the Link ECU hookup venue. Quote Link to comment Share on other sites More sharing options...
piazzanoob Posted August 2, 2023 Share Posted August 2, 2023 If your looking at doing some upgrades on the gearbox to help it last then i would look at getting the gears and shafts super finished. from what i know it was invented by NASA and is used on items under high stress. many racecars and bikes get it done on engine gearbox and diff parts. standard practice on high end racecar stuff. but gets done often now for things that get pushed to their limits. im not sure if anyone local to you does it but there is a crowd in auckland that does it. Morgan engineering in penrose. i have personally not had it done but seen the results of it done. Quote Link to comment Share on other sites More sharing options...
rotormotor Posted August 5, 2023 Author Share Posted August 5, 2023 Gearbox shop I dropped it off at tried the upsell by showing me a polished gear compared to standard factory, explained the parts are placed in a "tumble dryer" like machine with a media I assume. I don't thrash my cars, so not really required as Mazda did a pretty decent job of it 30 years ago. I rather spend on essential bits required. Ballpark half a grand Quote Link to comment Share on other sites More sharing options...
Dell'orto Posted August 22, 2023 Share Posted August 22, 2023 Is Matt building your motor? Quote Link to comment Share on other sites More sharing options...
rotormotor Posted August 22, 2023 Author Share Posted August 22, 2023 24 minutes ago, Dell'orto said: Is Matt building your motor? He is..well 'a' Matt is Quote Link to comment Share on other sites More sharing options...
dabuzz Posted September 4, 2023 Share Posted September 4, 2023 If you're vapour blasting, you wont need to coat in anything else, the process leaves the finish very resistant to filth, if just bead blasting then a light coat of matte clear helps. paint everything else in high temp black, and it will look tidy enough. Be mindful that as you are not modifying too far, that once the beautiful clean painted block goes back in, it gets covered with ugly ancillaries, wiring and hoses etc that will do no favours for aesthetics, so no need to over think it. 2 Quote Link to comment Share on other sites More sharing options...
rotormotor Posted September 5, 2023 Author Share Posted September 5, 2023 Not vapour blasting new housings so hopefully they not clash with the vapour blasted cast pieces. From the factory fitted 13BT, Im deleting all the emission gear, installing FMIC, new ally radiator, deleting AC, deleting clutch fan for electric fans so much more the engine be seen and rewire with new ECU. I think it be worth adding some details so for a change I can leave bonnet up when attending carshows. 1 Quote Link to comment Share on other sites More sharing options...
rotormotor Posted September 28, 2023 Author Share Posted September 28, 2023 Looking forward, any recommendations Electric fans for radiator, FMIC kits. Likely battery moving to the boot. FMIC I chosing whether I buy bends, joiners, pipe core and create a frankinstein myself or buy a spendy $1000NZ+ kit from Japan adding GST and shipping..or cheaper unnamed brand from AU. Quote Link to comment Share on other sites More sharing options...
CUL8R Posted November 6, 2023 Share Posted November 6, 2023 Why not remove it and fit a -An fitting in place? Or have a piece of tube spun to replicate? 1 Quote Link to comment Share on other sites More sharing options...
rotormotor Posted November 6, 2023 Author Share Posted November 6, 2023 Yeah, My builder is checking his stash for one in a rooted iron. Probably removeable with vice grips. My irons been hardened, that and the 30 years been in there might be a mish. Quote Link to comment Share on other sites More sharing options...
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