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Rx-3 Race Car build

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Old 12-27-14, 03:26 AM
  #101  
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Sorry about the picture angles the samsung hss to be horizontal or th a t s what happens! !
Old 01-05-15, 09:51 AM
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Been on holiday . . Really gets in the way of progress. Back into it today and a few mates are coming to help tonight *sweet*

Most of the front end bolt on parts attached. ..

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Picked up these pretty sweet Savanna tail lights a while back...

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Brake fluid container brackets

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Holiday time...

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Old 01-07-15, 10:09 AM
  #103  
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Looks really nice. also the colour. My dad has a like new 818 in the basement with around 5000 km on it the same colour.

Do you have the specs on the ports in these housings? Would be helpful to compare to the engine we made for our RX-3 track car! Do you plan on strapping it to the dyno to see what powerband it has?

What gearbox wuill you be running? Make sure to have a grose jet and enough fuel pump in there or it will run lean up top. Without ceramic seals this will be something the engine will not like at all at 9k5 rpm.
Old 01-07-15, 10:39 AM
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a beautiful build, also the rx-3 is the second coolest car in the world in my opinion
Old 01-13-15, 02:30 AM
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Originally Posted by Rub20B
Looks really nice. also the colour. My dad has a like new 818 in the basement with around 5000 km on it the same colour.

Do you have the specs on the ports in these housings? Would be helpful to compare to the engine we made for our RX-3 track car! Do you plan on strapping it to the dyno to see what powerband it has?

What gearbox wuill you be running? Make sure to have a grose jet and enough fuel pump in there or it will run lean up top. Without ceramic seals this will be something the engine will not like at all at 9k5 rpm.
48mm ports not sure of the timing, definitely will dyno to see what we are getting out of this motor.

The gearbox is a SA22C turbo gearbox. So will see how that lasts then upgrade from there.

Need to pull the IDA apart and check all the jets chokes and emulsion tube sizes

Your Dads car sounds mint!!!!
Old 01-13-15, 02:39 AM
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Quarter Master Twin plate

Rx-3 Race Car build-forumrunner_20150113_213627.jpg

7 pound flywheel

Rx-3 Race Car build-forumrunner_20150113_213704.jpg

Lightened counter weight

Rx-3 Race Car build-forumrunner_20150113_213732.jpg
Old 01-13-15, 02:45 AM
  #107  
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Xtreme Rotaries Side mount and billet water pump outlet..

Rx-3 Race Car build-forumrunner_20150113_213959.jpg



Rx-3 Race Car build-forumrunner_20150113_214018.jpg

Replaced fasteners for the caliper backing plate and all new ball joints / tie rods throughout.

Rx-3 Race Car build-forumrunner_20150113_214159.jpg
Old 01-13-15, 04:26 AM
  #108  
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Originally Posted by jajalajo
Quarter Master Twin plate

Attachment 550821

7 pound flywheel

Attachment 550822

Lightened counter weight

Attachment 550823
Nice clutch and flywheel! We are running racingbeat alu flywheel for TII style clutch. flywheel alone is around 4.6 kg. Must be almost double the inertia of your setupt with the big TII pressure plate we have.

As for the gearbox. it will help a lot if you have a box with closer ratios. I think any street gearbox will have quite short first and 2nd and then difference between the gears will be quite wide. the box we have drops only around 1000 rpm at each gear after 2nd when shifting at 9k. maxes out at 220 kph at 9k5 in 6th gear.
Old 01-14-15, 05:32 PM
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I'm using Rx-8 Rotors, Rx-8 Stationary Gears and Rx-8 Steel seals in this PP. All balanced, 3 window bearings and competition oil pump. Racing Beat reckon the Rx-8 seal are good for 9,500rpm. So we will test that!!!
Old 01-15-15, 02:44 AM
  #110  
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I think racingbeat means the seals have no problem running 9k5 in rx8 housings without ports. I always was a bit afraid with the steel rx8 seals in a engine with peripheral ports..

as a backup engine for our rx3 I am building now an engine with racingbeat housings and rx8 rotating assembly. will use ceramics in rx8 height and hope they are stiff enough to not flex in the ports..
Old 01-15-15, 04:43 AM
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Yea good points. I'm on the lookout for a close ratio mazda gearbox. Quite a few guys are running sequential boxes here now, but currently out of my league.
Old 01-15-15, 04:51 AM
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Rx-3 Race Car build-forumrunner_20150115_234439.jpg

A few pictures from the racing in Taupo NZ last weekend. Big meet, 120 cars..

I raced this 13b NA FD3S.

Rx-3 Race Car build-forumrunner_20150115_234519.jpg



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My RX-8 daily driver...

Rx-3 Race Car build-forumrunner_20150115_234920.jpg
Old 01-15-15, 11:30 AM
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Originally Posted by Rub20B
I think racingbeat means the seals have no problem running 9k5 in rx8 housings without ports. I always was a bit afraid with the steel rx8 seals in a engine with peripheral ports..

as a backup engine for our rx3 I am building now an engine with racingbeat housings and rx8 rotating assembly. will use ceramics in rx8 height and hope they are stiff enough to not flex in the ports..
I've read somwhere that rx-8 seals are not good with peripheral exhaust also..
Old 01-15-15, 02:50 PM
  #114  
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Thanks Rub, im going to do some research now
Old 09-09-19, 02:15 AM
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It’s been a while ..


On track late last year, we won our class and came second overall for the season against some strong turbo Rx7 competition

Note bonnet trying to escape form car!

Ended up using 15x10 with Hoosier 275/30/15 slicks
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Old 09-09-19, 02:29 AM
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Old 09-15-19, 03:40 AM
  #117  
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Absolutely stunning car! Love rx3s, especially with fat rims and arches.
Old 09-16-19, 06:49 AM
  #118  
Luis Rx3 Project

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Love the Rx3 I would love to get some flares for mine . Where did you purchase yours from . Love your color too car came out good
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