4-Rotor FC Build

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Old Aug 26, 2012 | 02:31 PM
  #951  
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This is impressive. Respect
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Old Aug 27, 2012 | 04:55 PM
  #952  
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Originally Posted by RotaryEvolution
99% of the time it is hot here, no one has air conditioning and 90% of the motors are limping around with blown coolant seals.. lol.


honestly you don't even need to run 2 plugs per chamber, the power difference won't be huge nor will fuel consumption. which is probably why we're both thinking about the same ECU.
Yeah I know, but it's easy to just fire 2 ignition plugs at the same time with one ignition channel so I don't see a good reason to use 1 plug per chamber.

Still working on the wiring at the moment, already spend a lot of time on it and I'm not even nearly done This is the ecu which I mounted in the stock location together with the lsu 4.9 lambda controller/sensor.

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Old Aug 27, 2012 | 05:18 PM
  #953  
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lol, that ecu is teeny!
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Old Aug 27, 2012 | 10:08 PM
  #954  
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I wouldn't trust my passengers not to step on it, lol.
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Old Aug 28, 2012 | 04:53 AM
  #955  
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What coils are you attending to use?
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Old Aug 28, 2012 | 10:20 AM
  #956  
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Originally Posted by John Huijben
This is the ecu which I mounted in the stock location together with the lsu 4.9 lambda controller/sensor.
It's the ECU that will say "check engine"...

Grtz Dee.
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Old Aug 28, 2012 | 12:33 PM
  #957  
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Good one dennis

@tegheim: he wil use coil on plugs form a Suzuki gsx (I tought)
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Old Sep 4, 2012 | 11:25 AM
  #958  
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I'm itching for an update, anything new?
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Old Sep 5, 2012 | 11:20 AM
  #959  
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Cant wait to see this thing done!
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Old Sep 5, 2012 | 03:24 PM
  #960  
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Originally Posted by tegheim
What coils are you attending to use?
I've got a couple of combo's I can try on the dyno, but I'm going to start with denso coil on plug coils from a honda / suzuki motorcycle.



Originally Posted by 87FCTurboII
I'm itching for an update, anything new?
Not really, still working on the wiring. I'm putting in a lot of hours but it's just soo much work, I'm about 2/3rd done now. When starting I already figured building an entire wiring harness out of scratch for the entire car would be a lot of work... I was wrong, it's not a lot of work, it's a huuuge near infinite amount of work! Me spending the majority of the time trying to figure out how 80's electronics actually works doesn't help either




Originally Posted by RTY PWR
Cant wait to see this thing done!
Yeah, me too!
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Old Sep 5, 2012 | 11:02 PM
  #961  
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Want to re-wire my car when you're done?
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Old Sep 5, 2012 | 11:38 PM
  #962  
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I'm in the same boat that you are right now with the wiring harness. Did you kept the stock headlight / turn signal switches? How did you do it? do you have a wiring diagram of your set up? Loving this build!
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Old Sep 5, 2012 | 11:59 PM
  #963  
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You can make a plug-n-play harness for 26B in FC3S
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Old Sep 9, 2012 | 01:04 AM
  #964  
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What are you on vacation or something? Get to work! LOL

Can't wait for an update, if you can't tell.
I like that you are going for a streetable build, which is awesome! Very inspiring.
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Old Sep 9, 2012 | 02:07 PM
  #965  
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Originally Posted by REAmemiya_fan
Want to re-wire my car when you're done?
No I don't, These wires are making me insane!


Originally Posted by mx-3_4evr
I'm in the same boat that you are right now with the wiring harness. Did you kept the stock headlight / turn signal switches? How did you do it? do you have a wiring diagram of your set up? Loving this build!
Yeah, I used all the original switches, even the oem logicon completely works. I don't have a wiring diagram but it's pretty much wired the same way as stock. I did modify a few things though, I used new relays for everything, I ditched the oem turn signal / horn unit in favour of a small universal blinking relay, and ditched the oem fuse box in favour of a smaller simpler one. Everything is a lot more simple now, very easy to troubleshoot if anything goes wrong. Pulling the engine out will also be a breeze since the engine will have a seperate wiring loom with a big multipin connector that links the engine to the chassis. I also made the loom so that during cranking only the engine, ecu and oil pressure gauge gets power, to save some of the battery power drain to help get the 4-rotor engine going. It's all not really super difficult or anything, you just have to get into it. Get a laptop with the rx7 wiring diagram, a lot of wires with different colours, and soldering stuff, connectors, crimping tools, heatshrink stuff, labeling stuff ect. and just start.


Originally Posted by tegheim
You can make a plug-n-play harness for 26B in FC3S
Yeah sure thing, hell, while I'm at it I'd better start cranking out complete plug-n-play 4-rotor kits for FC's and FD's


Originally Posted by MrGoodnight
What are you on vacation or something? Get to work! LOL

Can't wait for an update, if you can't tell.
I like that you are going for a streetable build, which is awesome! Very inspiring.
Well, an update wouldn't be very interesting, still busy on the wiring loom. I can post a picture, but it would pretty much look the same as the last one, a bare chassis with a bunch of wires in it. It is coming along great though, I'm nearly done so I can start putting things on the car soon. Also going to pick up some sick wheels tomorrow, already have a set of 18x8.5 et35 SSR type C wheels, but I'm going to ditch them in favour of something better
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Old Sep 9, 2012 | 06:43 PM
  #966  
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i feel like a teenage girl at a backstreet boys concert waiting on your update then you drop a huge one on us by saying your going to pick up some sick wheels but not say what their going to be i dont think i could take much more you have to post pics asap ....... please
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Old Sep 9, 2012 | 09:10 PM
  #967  
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Subscribed, this is awesome
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Old Sep 10, 2012 | 01:04 AM
  #968  
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I can see your freshly painted white interior is getting a weeeee bit dirty! hahaha I'm having the exact same problem with my build, shes gonna need a little touch up paint after the cage is in.
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Old Sep 10, 2012 | 07:06 AM
  #969  
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I am curious to know what kind of training you have done to obtain the skills you have using the cnc ? and what programs you used to design the custom parts ex. radiator, eccentric shaft, and other engine parts ?

great build and keep up the excellent work
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Old Sep 10, 2012 | 09:06 AM
  #970  
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^^read all 39 pages.....then the only question will be, WHEN DO I GET TO SEE THIS BEAST RUNNING!!!
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Old Sep 10, 2012 | 09:07 AM
  #971  
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Originally Posted by John Huijben
I also made the loom so that during cranking only the engine, ecu and oil pressure gauge gets power, to save some of the battery power drain to help get the 4-rotor engine going
Dude, thats not going to work... you forgot the fuel pump
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Old Sep 10, 2012 | 09:07 AM
  #972  
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Originally Posted by joe88convertable
^^read all 39 pages.....then the only question will be, WHEN DO I GET TO SEE THIS BEAST RUNNING!!!
Wanted to say the same thing, its all mentioned in this thread..
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Old Sep 10, 2012 | 01:05 PM
  #973  
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Originally Posted by Ocho Siete
I am curious to know what kind of training you have done to obtain the skills you have using the cnc ? and what programs you used to design the custom parts ex. radiator, eccentric shaft, and other engine parts ?

great build and keep up the excellent work
I would think he's a Mechanical Engineer by trade, they like to use Solid Works and or ANSYS finite element software for design. Combine that with love for Wankel and a sweet machine shop, bam he's the Nederlands Jessie James.
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Old Sep 10, 2012 | 05:01 PM
  #974  
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Originally Posted by killingtime33
i feel like a teenage girl at a backstreet boys concert waiting on your update then you drop a huge one on us by saying your going to pick up some sick wheels but not say what their going to be i dont think i could take much more you have to post pics asap ....... please
Did you just compare me with the backstreet boys? Really?? Wow... that's a first , anyway sorry to keep you waiting , got some info and wheel pictures.

This is one of the SSR wheels I was originally planning to use,



Pretty nice I think, but 18" might be a bit much on a pretty stock bodied FC, I really like the way some FC's looked with agressive 16" ones, and found these for dirt cheap so I couldn't pass them up. Should go well with the white too after a bit of polishing



They are BBS RZ394's, need a bit of work to fit and look good but I think I can make it work. Good thing I didn't paint my front wings yet, I already rolled and pulled those but it's going to be close, might need to massage those a bit more and get some lower profile tyres, the ones that are on there now are huge!

Big lip, check!




Originally Posted by njhns92
I can see your freshly painted white interior is getting a weeeee bit dirty! hahaha I'm having the exact same problem with my build, shes gonna need a little touch up paint after the cage is in.
Yeah I know, the white is near impossible to keep clean when working on the car. Shouldn't need a touch-up when done though, just a good clean.


Originally Posted by Ocho Siete
I am curious to know what kind of training you have done to obtain the skills you have using the cnc ? and what programs you used to design the custom parts ex. radiator, eccentric shaft, and other engine parts ?

great build and keep up the excellent work
I did what I think you call polytechnic school, and nothing is done using cnc, everything is done manually. As for programs I used solidworks for the most stuff, and a little autocad here and there if I want to sketch something simple out quick or need some coordinates for re-drilling wheels or something.


Originally Posted by Furb
Dude, thats not going to work... you forgot the fuel pump
Crap, you're right I forgot to mention it because it isn't powered through the ignition switch , the fuel pump relay is wired directly to the battery and the ecu turns the relay on.
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Old Sep 10, 2012 | 07:23 PM
  #975  
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yeah sorry dude your my living hero at this point those bbs are sick i would go with them that is if you planned on staying with smaller brakes
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