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 Lil_mike's Mazda - 1989 MX-5 Rotary  

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lil_mike
  • lil_mike
  • Resident Hairdresser.........with a chainsaw!
  • Member No.: 47,369
  • Joined: 4-June 06
  • Posts: 1,347
  • From: Brisbane
Post #1 post 30th August 2007 - 05:38 PM
Figured i should actually post one of these up here. this car has been my project since the start of this year. It’s a 1989 Mazda MX-5 Hardtop with a rotary conversion.

The engine is a 12A-T built by Rotamotion down in Perth. It has some mild porting, Ceramic Seals and modified oil galleries. The engine has only done around 6000km's since being rebuilt. Currently it is only running 6psi, when tuned to around 14psi we would be expecting around 250kw. The injection Manifold and turbo were donated from a Series 5 RX-7. Getting the fuel from the tank is handled by a Bosch 044 fuel pump, and all operations are controlled by a Wolf 3D Version 4 ECU. Air intake is cooled via a Water-to-Air Intercooler. It has a separate reservoir and cools the water through a VW Golf radiator. Usually the car runs around ambient temperature for the intake but can drop severely in the colder weather. The lowest we had it back in April was 19 degrees, though we are yet to try it in this weather. Excess engine heat is removed by a Commodore radiator mounted just behind the VW one, and has a larger thermo fan to help as well.

Behind the engine is the Series 6 RX-7 gearbox. The clutch is an eXedy heavy duty one and is still fairly new. A custom driveshaft is being made for the vehicle at this moment and will connect to a new differential and half shafts. The previous diff was a smaller, Viscous LSD and decided that it didn’t want to live anymore, so we were forced to upgrade. This new housing is from an FD RX-7 with a Kaaz 2-Way in it.

The current suspension system consists of Eibach Springs and Koni AGX adjustable shocks. All bushes have been replaced with Nolathane parts and a custom rear sway-bar has been installed. Braking is handled by a set of Drilled, Slotted and Vented rotors up front all with Metal King Pads.

Thats basically it so far. Still got so much work to do on it though. here are a few old pictures of it. The engine bay is actually different to that now, its just we havent had a chance to take any new pics of it since its covered in dust and oil. that and the driveline is still in pieces sad.gif


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1989 Mazda MX-5 + 12A-T = a whole lot of fun in 950kg's

QUOTE
You haven't just crossed the line of insanity. No, you've streaked across it, blown it up and then thrown marshmallows into the river below! I pity the first person to look inside your head

Need help with mechanical design issues? Send me a PM. From aerodynamics to engine specifications and modifications
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Comments

  • Boost Network 0
  • luk3y
    Post #2

    nice work thumbsup.gif

    would be so much fun to drive!

    Dori*mon
    Post #3

    that is fantastic, awsome work mate

    Exaboy84
    Post #4

    ooooo nice

    Beneboy
    Post #5

    nice lil car...wheels look great
    Blake
    Post #6

    nice ride, ur the dude that had a sook on ausrotary about ur car getting thrashed on youtube? rolleyes.gif

    gl with the sale

    bustage
    Post #7

    blake your very out spoken for someone who owns this car

    https://www.boostcruising.com/forums/index....=223805&hl=

    lil_mike
    Post #8

    QUOTE(Blake @ Aug 31 2007, 11:51 AM) [snapback]1281385406[/snapback]

    nice ride, ur the dude that had a sook on ausrotary about ur car getting thrashed on youtube? rolleyes.gif

    gl with the sale

    dont start that up again. there is more to the whole story than was posted.

    car is not for sale? put up an EOI a while ago but nothing definitive.

    RUM805
    Post #9

    Thats totally tits!

    GTRVspec95
    Post #10

    Hurry up and track it Mike tongue.gif

    lil_mike
    Post #11

    QUOTE(GTRVspec95 @ Aug 31 2007, 12:11 PM) [snapback]1281385461[/snapback]

    Hurry up and track it Mike tongue.gif

    you dont have to tell me that jamie. i've found new ligthweights for it too. set of BBS's biggrin.gif 15 x 8 and weigh about 6kg each.

    83ASY
    Post #12

    QUOTE(bustage @ Aug 31 2007, 02:06 PM) [snapback]1281385444[/snapback]

    blake your very out spoken for someone who owns this car

    https://www.boostcruising.com/forums/index....=223805&hl=


    laugh.gif

    Nice ride Mike, must be a fun little package

    lil_mike
    Post #13

    QUOTE(83ASY @ Aug 31 2007, 12:16 PM) [snapback]1281385479[/snapback]

    laugh.gif

    Nice ride Mike, must be a fun little package

    yeah when it goes sad.gif

    Macostar
    Post #14

    thats a machine , what would you be expecting down the quarter?

    eighty-eight
    Post #15

    wow that would be fun to drive

    RetardedMonkey
    Post #16

    So you're not selling it?

    Fuck yeah, keep it.

    Manic 180
    Post #17

    awesome car. shame about the previous owner,.

    lil_mike
    Post #18

    QUOTE(Macostar @ Aug 31 2007, 12:17 PM) [snapback]1281385483[/snapback]

    thats a machine , what would you be expecting down the quarter?

    dont know? its being built for circuit use mainly. i'd say 12 something maybe?

    QUOTE(RetardedMonkey @ Aug 31 2007, 12:19 PM) [snapback]1281385499[/snapback]

    So you're not selling it?

    Fuck yeah, keep it.

    biggrin.gif yeah i'm keeping it.....for now anyway.

    Blake
    Post #19

    QUOTE(bustage @ Aug 31 2007, 12:06 PM) [snapback]1281385444[/snapback]

    blake your very out spoken for someone who owns this car

    https://www.boostcruising.com/forums/index....=223805&hl=


    OWNED if you saw my other topics you would also know i sold it months ago..

    rolleyes.gif

    lil_mike
    Post #20

    QUOTE(Manic 180 @ Aug 31 2007, 12:20 PM) [snapback]1281385500[/snapback]

    awesome car. shame about the previous owner,.

    shit happens. unfortuantely there are trustworthy people, and then there arent. nothing can be done about it anyway so i just gave up and bit my tongue. still doesnt change the fact that its my car though, and that keeps me going smile.gif

    Conrad
    Post #21

    https://www.youtube.com/watch?v=hONXYySV2qM#


    ROFL thats mad.

    lil_mike
    Post #22

    QUOTE(Conrad @ Aug 31 2007, 12:25 PM) [snapback]1281385523[/snapback]

    https://www.youtube.com/watch?v=hONXYySV2qM#
    ROFL thats mad.

    not my car. mine has parts from that one though. that one was wrecked last year i think.

    clutch-monkey
    Post #23

    nice car! has it ever been running though?

    Conrad
    Post #24

    If your cars anything like that, then sweet as! Looks good nice project, I wasnt being a dick hahaha. Something different ive always loved turbo MX5's turbo + Rotary = Even better tongue.gif

    lil_mike
    Post #25

    QUOTE(clutch-monkey @ Aug 31 2007, 12:29 PM) [snapback]1281385528[/snapback]

    nice car! has it ever been running though?

    yes laugh.gif it just has a lot of problems that go back to before i had it which we keep uncovering. lots of things that just arent explainable. literally, they just dont make sense.

    QUOTE(Conrad @ Aug 31 2007, 12:32 PM) [snapback]1281385535[/snapback]

    If your cars anything like that, then sweet as! Looks good nice project, I wasnt being a dick hahaha. Something different ive always loved turbo MX5's turbo + Rotary = Even better tongue.gif

    mine will be a bit quicker........hopefully smile.gif

    DODelaney
    Post #26

    that is unreal man
    the 1 in the clip conrad posted is mad

    clutch-monkey
    Post #27

    QUOTE(lil_mike @ Aug 31 2007, 12:36 PM) [snapback]1281385541[/snapback]

    yes laugh.gif it just has a lot of problems that go back to before i had it which we keep uncovering. lots of things that just arent explainable. literally, they just dont make sense.

    i can symphathise, i mean try working on a british car head_wall.gif nothing makes sense
    good to see your mx5 might be running in our lifetime though!

    lil_mike
    Post #28

    QUOTE(clutch-monkey @ Aug 31 2007, 01:17 PM) [snapback]1281385636[/snapback]

    i can symphathise, i mean try working on a british car head_wall.gif nothing makes sense
    good to see your mx5 might be running in our lifetime though!

    lol go the brits.

    it'll be going before the end of this year. i will have it ready before my birthday mid december, guaranteed.

    MPRZIV
    Post #29

    nice man good luck with it.

    Tommo24
    Post #30

    nice mate nice! biggrin.gif

    should be awesome once she's back on the road!

    Killy
    Post #31

    not something you see everyday, hopefully you'll have her all sorted soon. good luck with it anyway! biggrin.gif

    120Y
    Post #32

    i bet it goes zoom zoom

    25YKU
    Post #33

    QUOTE(Blake @ Aug 31 2007, 12:23 PM) [snapback]1281385515[/snapback]

    OWNED if you saw my other topics you would also know i sold it months ago..

    rolleyes.gif


    rolleyes.gif bet hes hiding under his bed crying for days now.....
    lil_mike
    Post #34

    QUOTE(Killy @ Aug 31 2007, 02:16 PM) [snapback]1281385776[/snapback]

    not something you see everyday, hopefully you'll have her all sorted soon. good luck with it anyway! biggrin.gif

    i only know of three in australia including mine so yeah, i'd say you wouldnt see one very often biggrin.gif

    Lobo
    Post #35

    hairdress car.. ohnoes.gif run.gif head_wall.gif
    happy.gif

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