Naturally Aspirated Performance Forum Discussion of naturally-aspirated rotary performance. No Power Adders, only pure rotary power! From the "12A" to the "RENESIS" and beyond.

20B NA BP semi-PP ITBs

Old Jun 23, 2012 | 03:32 AM
  #151  
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Built the short block today.



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Old Jun 24, 2012 | 03:33 AM
  #152  
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this is sweet man!
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Old Jul 4, 2012 | 04:27 AM
  #153  
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holy crap I can't wait until this is done. I really want to hear this thing fire up. Fantastic job so far, im so jealous!
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Old Jul 6, 2012 | 02:15 AM
  #154  
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Alright!! Throttle bodies arrived today. After a total stuff around by a "prototype" CNC shop that stuffed my trumpet tools and then wanted double to make the throttle bodies, I told them to stuff it and went to APEX CNC on the Gold Coast.
Couldn't be happier, they are are exactly what I had in my head (and autocad i guess) and he was more than helpful and had great communication. Will be getting them to do any CNC stuff from now on.

Some pics!!
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Old Jul 6, 2012 | 02:17 AM
  #155  
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Old Jul 6, 2012 | 07:49 AM
  #156  
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Wow... impressive. Beautiful work and attention to detail! Love it!!
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Old Jul 6, 2012 | 08:03 AM
  #157  
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I like it alooot ... think out side the box l....
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Old Jul 16, 2012 | 08:30 AM
  #158  
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Progress.
Engine is now back in the car.
Exhaust is on. (needs work as its touching now)
Link G4 ecu Is almost finished wiring in. I put some power on it and it seems ok.
Engine loom will go back on tomorrow, and should be able to start testing all the wiring through the link.

I love that fact that you can test every sensor, coil, injector BEFORE any attempt to start.

I'm getting keen!!!!!
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Old Jul 18, 2012 | 07:12 AM
  #159  
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Some pics, I almost forgot how low to the ground these things are!
Engine loom on, mostly wired up now, everything bar wideband tested OK first time, Ill need to check that one.

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Old Jul 27, 2012 | 09:58 PM
  #160  
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Originally Posted by F1Pilot
Some pics, I almost forgot how low to the ground these things are!
Engine loom on, mostly wired up now, everything bar wideband tested OK first time, Ill need to check that one.

Looking really good
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Old Jul 29, 2012 | 05:30 AM
  #161  
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Did a quick couple vids.

Couldn't have Brad to be the only one with a cool
Opening ceremony!!

Im aiming to start this thing next weekend!!

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Old Jul 30, 2012 | 03:11 PM
  #162  
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Can't wait to here the rumble.
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Old Jul 31, 2012 | 08:42 AM
  #163  
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Braille battery arrived. Installed without letting the smoke out even! Looking good for a start this weekend!!
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Old Aug 2, 2012 | 08:25 AM
  #164  
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What model braille you get? Im getting ready to pick one up myself.
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Old Aug 2, 2012 | 06:10 PM
  #165  
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It's a 2015. Hopefully it's enough, I just needed it quite small to put it where I wanted.
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Old Aug 4, 2012 | 01:33 AM
  #166  
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YIPPEE!!!!
Sorry about the varying audio, friend forgot where is fingers were!
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Old Aug 4, 2012 | 12:30 PM
  #167  
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Awesome! Post some more after you get the tune dialed in a little. Very nice!
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Old Aug 4, 2012 | 04:49 PM
  #168  
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Originally Posted by RCCAZ 1
Awesome! Post some more after you get the tune dialed in a little. Very nice!
+1
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Old Aug 4, 2012 | 10:16 PM
  #169  
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Awesome, congrats. That's a lot of smoke!
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Old Aug 23, 2012 | 08:37 AM
  #170  
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Old Aug 27, 2012 | 07:58 PM
  #171  
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Sweet man, that's my (hopefully) next setup.
I am curious about the slide throttle setup. What's something like that worth.
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Old Sep 1, 2012 | 06:11 AM
  #172  
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I'm not running a slide. It's just 6 ITB. I did the CAD file myself and had a CNC shop machine it. $500 for maching and the throttle plates and shafts were around $400. Plus about $600 for trumpets.
So $1500 it cost me.
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Old Sep 3, 2012 | 06:06 PM
  #173  
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Congratulations, looking and sounding good!
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Old Sep 4, 2012 | 09:50 AM
  #174  
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Thanks. I've done about 80ks so far and love it!!! It still has a way to go, but that's ok. Currently driving it on all 6 itbs at once,(no staging) and although it's difficult for low throttle tuning, it drives just fine.
I've had to increase low throttle % resolution in the map due to the fact that light throttle driving literally uses anywhere from .5-3% throttle!
I guess that's the result of effectively a 65mm throttle per housing!
The intake noise on the street is just amazing.
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Old Sep 4, 2012 | 09:51 AM
  #175  
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Oh yeah and at
moment I get a lovely 30L per
100kms!!!!!!!
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