4-Rotor FC Build

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Old Jun 24, 2012 | 04:22 PM
  #776  
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How well do they unplug those ingniters and from what motorcycle are those.

For the rest nice build and how does it show now with the bumper?

Ow those lights are upright so if you mod your lights with a plexi, you improved your airflow over the car when the lights are on.
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Old Jun 24, 2012 | 04:37 PM
  #777  
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I'll see if I can get a picture of the car tomorrow, but from the outside it looks just the same as before. Badly in need of paint, coilovers and wheels, but I've already got most of that covered.
The coils are from a 00-03 suzuki gsx-r 750. These are pretty much identical to the more commonly known cbr 600 f4i coils. A lot of the motorbike coils will work, but not all of them. Some motorbikes use CDI ignitions or coil on plug coils with an internal igniter. These are dumb coils so they don't have an internal igniter which is fine because my ecu has internal igniters. These coils don't accept a lot of the spark plugs though, only the ones with a small treaded tip can be used, the larger tip's don't fit. Spark plugs with a larger tip can be easily machined to fit though so it's not an issue for me. Normally there really isn't a reason to use these, because a normal FC coil works fine, but with a 4-rotor these coil on plug's take up way less space.
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Old Jun 25, 2012 | 02:08 AM
  #778  
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Love the "DB9"-gap you have... Beautiful car without the front attached
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Old Jun 25, 2012 | 10:08 AM
  #779  
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can't you just unscrew the larger tips from the threads, like i used to do with scooters?
Never checked if thats possible with normal plugs used in cars
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Old Jun 25, 2012 | 10:53 AM
  #780  
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^ depends on what brand and style plugs. Some you can some you can't.bur7eq and bur9eq have a non threaded post. But iirc the Denso iridium race plugs you can.
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Old Jun 25, 2012 | 11:25 AM
  #781  
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Looking good!
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Old Jun 25, 2012 | 12:21 PM
  #782  
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Looks like Mad Max's garage!
Thx for the new pics.

Grtz Dee
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Old Jun 26, 2012 | 02:05 AM
  #783  
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Originally Posted by damic
How well do they unplug those ingniters and from what motorcycle are those.

For the rest nice build and how does it show now with the bumper?

Ow those lights are upright so if you mod your lights with a plexi, you improved your airflow over the car when the lights are on.
Outside of the car looks like this at the moment, doesn't look like I've spend the last half year working on it but that will change .




E-shaft came back from balancing yesterday
There was a problem though, I calculated the needed counterweight dimensions using the computer, made a new rear counterweight out of billet steel and modified an oem front one. I made them both a bit too heavy, so only a few drilled holes should be needed when balancing. This worked out just as planned for the rear one, but for some reason the modified oem front one was too light. Maybe the computer model was a bit off, or the density of the cast iron is a little bit different from billet steel, but anyway they couldn't use it because there isn't really a good way to increase the weight of the cast iron counterweight. So I grabbed another oem front counterweight, added the offset locating key and mounted it on the e-shaft. Not being machined to a smaller outer diameter this counterweight was way too heavy, but some grinding and drilled holes fixed that. The e-shaft is now balanced to within 1,5 grams.

Picture of the balancing assembly, the counterweight that isn't mounted on the shaft didn't work



Holes that were drilled during balancing


The os giken flywheel and pressure plate were also balanced. The flywheel was about 6 grams off, and the pressue plate was 3 grams off


The balancing assembly disassembled. The e-shaft is now ready to be put into an engine. Just need to do a few more things before the engine can be assembled. Lot's of work left to do on the chassis though, so engine assembly will have to wait a while

Last edited by John Huijben; Jun 26, 2012 at 02:11 AM.
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Old Jun 26, 2012 | 05:18 AM
  #784  
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Nice job, glad it all worked out
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Old Jun 26, 2012 | 10:15 AM
  #785  
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Fantastic John!
Hope the balancing will work will oil in the rotors also
Of course it will
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Old Jun 26, 2012 | 12:24 PM
  #786  
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Old Jun 26, 2012 | 01:06 PM
  #787  
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That is 1 hell of a balancing job. 6gr on the flywheel and 3 on the pressure plate.
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Old Jun 26, 2012 | 11:30 PM
  #788  
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The fabrication skills are so amazing! Excelent build.
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Old Jun 27, 2012 | 12:30 AM
  #789  
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Wow good job so far
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Old Jun 29, 2012 | 01:40 AM
  #790  
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Wow a lot of progress to look through! Awesome job as usual
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Old Jun 29, 2012 | 07:30 AM
  #791  
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Originally Posted by John Huijben
I made 2 hooks that hook onto pins that extrude from the hood, one of those 2 hooks is unlocked from the inside of the car, the other one from inside of the hood vent. Works just as well as stock, took me over a day to make though.
Does this setup take two people to undo the hood- one to operate the cable release and one the manual release?
Given the amount of thought lavished on all the other details, I'm sure there's a logic I'm not seeing but it would appear that flipping the farside hook and tying a relay bar between them would allow the cable to actuate both catches.

In the greater scheme of things I realize this seems trivial, just curious.
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Old Jun 29, 2012 | 09:58 AM
  #792  
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no one is a safety catch like a typical car.
pop the cable release, walk to front of car, lift hood and grab hand release.
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Old Jun 29, 2012 | 10:10 AM
  #793  
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Except I don't see anything that "pops" the hood up off the first (cable actuated) hook.
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Old Jun 30, 2012 | 03:09 PM
  #794  
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blue is the cable and the red is the hand release.
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Old Jun 30, 2012 | 10:27 PM
  #795  
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Yes, I understand exactly how his current setup works but my questions still stand.
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Old Jul 1, 2012 | 01:19 AM
  #796  
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Originally Posted by clokker
Yes, I understand exactly how his current setup works but my questions still stand.
Alright i figured where the hood release was. Marked in red.

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Old Jul 1, 2012 | 02:25 PM
  #797  
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Read clokker's questions again, he wants to know how the hood actually pops up after using the cable actuated lever in the car. There has to be some sort of spring to lift the hood after using the lever in order to release the hood from the first latch.
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Old Jul 1, 2012 | 04:28 PM
  #798  
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Originally Posted by Primos003
Read clokker's questions again, he wants to know how the hood actually pops up after using the cable actuated lever in the car. There has to be some sort of spring to lift the hood after using the lever in order to release the hood from the first latch.
A little bit of magic
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Old Jul 1, 2012 | 04:34 PM
  #799  
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Originally Posted by osburn383
A little bit of magic
Or hood struts.
Which John probably designed and built himself.

I'm only qualified to marvel at most of the work done in this thread, but the hood latch is more in my wheelhouse and I think it's a curious design, requiring two discrete steps.
I'm sure it wasn't a haphazard decision and was just interested in the logic that's all.
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Old Jul 2, 2012 | 11:49 AM
  #800  
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this thing is amazin, i cant wait to see it running
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