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mikec(nz)

240k Race car - GTR tribute

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    Cheers Flauski, yeah I remember that. Great you have another car.

    Well a few delays as my order from the Z store got nicely sent to Malta rather than NZ. Close, not!

    In the meantime got the sump modified, cross member modified and new drive pulley.

    Heres some pics

     

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    Edited by mikec(nz)
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    More progress, finally the last parts arrive after being redirected from Malta. Thanks Fedex.

    Tested the sump oil levels (5l) modified so the old skool GTR sump could clear the exhaust and the sump/gearbox bracket would clear the extractors.

    Mocked up the manifolds and read to go into the newly cleaned engine bay.

     

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    Still a few parts to fit, the new OS Giken twin plate clutch and we had to get the right oil pump spindle. Turns out the Kamarei one only works with their special oil pump. 

    More pics soon.

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    Engine in and clutch done, link from sump to gearbox fitted and manifolds and carbs fitted.

    New engine mounts. Note you need specific 240k ones, hard to find and very expensive compared to 240Z.

    That sump which is actually for a Hakosuka, requires cross member modification, slight block grinding and exhaust manifold modification.

    Will also need a new sway bar, so its not a direct bolt up for a 240k.

    Getting closer, might be ready for start up in a few days.

     

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    Edited by mikec(nz)
    Stupid speelcheck
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    Sorry leadfoot is painful, all day for Just a few minutes of racing. No run off areas and a fun stone bridge if you make a mistake, happy to spectate at that event.  Was going to try to get it ready for the festival at taupo in Mid Jan but not going to make it. Will be at the GTR festival.

    More progress today

    New plugs, new oil cooler arrived and rest of carbs fitted. Belts fitted etc

     

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    Well good news, the engine started today with no real dramas (just a faulty electric fan relay).  Running a bit lean and my engine builder was a bit concerned with the whine from the twin idler set up.  But according to Dr Google thats normal and all seems happy.  Off to the dyno in a few weeks and will report back then..

    In the meantime heres a couple of videos

    Video engine starting today https://youtu.be/8HT150MspWo

     

     

    Few good revs https://youtu.be/EpZ9BPRo5xk

     

    Cheers  Mike

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    Dyno day today. Car went well. Interesting results which I will post later. Heres teaser pics

    I'll get a video up to youtube soon.

    As we dropped a bit of capacity you would think we would get less power but got roughly the same as before 250 rwhp, but lots more torque.  But it is running richer so will sort that out after we have given it a proper run in at a track day and then see what happens.

    Otherwise is running fine, temps steady and no knock or noise, rock solid fuel pressure.

    Admit I did hope for more power straight off the bat, but will see what develops. Every run made a few HP more so next is a good run in and then some tuning.

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    Edited by mikec(nz)
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    Brilliant!

     

    I was lucky enough to meet some guys over here at the phillip island historics last month who made the trip from NZ who were big fans of yours!

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    Posted (edited)

    Thanks Mastadd240k, they mention they had run into some 240k owners.

    Now lockdown was over managed to get it to the track to run in the engine.  What better day than the Prowear 2020 GTR Festival.

    Did not taken any real photos, but Glenn from the Lab did a video of the event, some footage in that

    https://www.youtube.com/watch?v=3-xtPZUrC1U 

    Back to Coastline Automotive for an oil change then back to the dyno for another check, then we can decide whether to spend some more time tuning.

    Dyno charts from Feb 20 showing new engine vs old engine.  That old engine really ran well for its age.  It did have slightly bigger capacity and extensive head work.  Surprised the new one was not much different.

    The old engine lines on the chart is very hard to see.

    AFR Feb 20.pdf HP-Torque Feb 20.pdf

    Edited by mikec(nz)
    Extra info
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    Some pics of the GTR Festival - not really a race event but great opportunity to run the engine in.  The video is above but her is some pics of the K from the event.  Thanks to Maria Panova Photography http://www.mariapanova.com/

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