Datsun 280ZX IMSA GTU replica race car build...

Restores, Revamps and Repairs

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Grunzter
Posts: 445
Location: Epsom, Auckland

Re: Datsun 280ZX IMSA GTU replica race car build...

Post by Grunzter » Wed Sep 09, 2020 7:46 pm

Ok, bits of the body work are off for some surgery. It should have been sorted before the paint, but thats another story.

Going to cut the current ZXR Wing off so it can get fixed to properly fit the hatch, and look like how it should be.
The mould was taken off a real ZXR wing I brought from Nissan Motorsports in CA, but that his since been sold to a guy in France.
I will probably get my mould tweaked now as well, so at least if i need another its good to go!

Front fenders need around 1" widening, so those to will come back looking very different.
The doors will need some love as well, but mainly fixing some minor cracks and making them good.

All the body work was purchased from Arizona Z-Car back in the day he done FRP panels... this set was sitting outside under a tree for a few years i understand, half his garden was imported with the bits when it came over.

Once the tweaks are done, they will get re-fitted and then back again for front air-dam final mods and fit up etc...

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1980 280ZX #33 IMSA GTU Race Car ...nearly done!
(Sold) 1984 300ZX Z31 2+2 Turbo
(Sold) 1980 280ZX 2+2

User avatar
Grunzter
Posts: 445
Location: Epsom, Auckland

Post by Grunzter » Sat Sep 12, 2020 5:06 pm

In a few weeks the car will venture out into the sunlight for the first time in over 8 years. It will be off to have new sway bars fitted front & rear, some small tweaks to the adjustable rear arms and for the headers and exhaust.

This week a few goodies arrived from Aussie, a new single piece fuel rail to replace the old one, custom drilled to suit my throttle body centres, and a replacement distributor that uses magnetic sensors for crank and cam timings, though we will only use it for cam timing, as the Crank will have its own trigger wheel. Those parts are from EFI Hardware (Speed Technology) in Aussie.

And a few small bits off to the platers, colour to be Gold Zinc. I did get them blasted first, but they used quarry rocks for grit instead of beads so had to smooth them out with a wire brush and sanding... The power steering pulley is beyond repair, so will need to machine up a billet one...

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1980 280ZX #33 IMSA GTU Race Car ...nearly done!
(Sold) 1984 300ZX Z31 2+2 Turbo
(Sold) 1980 280ZX 2+2

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bernjean
Z Club Member
Posts: 1623

Post by bernjean » Mon Sep 14, 2020 8:19 am

Love that diszy, Man that's all going to look good. Getting really jealous now.
Bernie Kant
Club President

mikec(nz)
Z Club Member
Posts: 173
Location: Tauranga, New Zealand

Post by mikec(nz) » Tue Sep 15, 2020 3:43 pm

I've been jealous well before that, but seriously jealous since the rocker cover.

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Grunzter
Posts: 445
Location: Epsom, Auckland

Post by Grunzter » Tue Sep 15, 2020 7:31 pm

The Rocker cover should be in my hands tomorrow morning... :)

Had one seat repaired today, had some little fury thing chew a hole in it while ago whilst in storage. I bought these seats new about 15 years ago. Unfortunately some of the foam padding has started to turn into dust. 🙁
They look good, pity the Italians didn't use better fabric.
I'm fitting two seats just for testing days and the occasional track joy ride...

Don't really want to buy new seats at the moment, can be an upgrade in a year or so...

Image
1980 280ZX #33 IMSA GTU Race Car ...nearly done!
(Sold) 1984 300ZX Z31 2+2 Turbo
(Sold) 1980 280ZX 2+2

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Grunzter
Posts: 445
Location: Epsom, Auckland

Post by Grunzter » Wed Sep 16, 2020 5:56 pm

I know what Indiana Jones felt like when he first handled the holy grail...
Image
1980 280ZX #33 IMSA GTU Race Car ...nearly done!
(Sold) 1984 300ZX Z31 2+2 Turbo
(Sold) 1980 280ZX 2+2

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bernjean
Z Club Member
Posts: 1623

Post by bernjean » Thu Sep 17, 2020 8:39 am

That is so cool, man really jealous.
Bernie Kant
Club President

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Grunzter
Posts: 445
Location: Epsom, Auckland

Post by Grunzter » Sun Sep 27, 2020 6:38 pm

Got the top of the dash all fitted up today. A job I have been putting off. Trimed the front edge as well as cut it in half to make it easier to remove once the windscreen goes in. Will take it to get powder coated on Monday. (Colour: Matt Black).
Trigger wheel made, and its currently getting plated.
Its a 36-2 wheel, dimensions taken from the Motec sheet...

A few bits back from the platers.
Would have been more shiny if they had used soda instead of Kryptonite when blasting...
I aim to use molded covers painted white in lieu of headlights, but if I decide to add them one day its ready...

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1980 280ZX #33 IMSA GTU Race Car ...nearly done!
(Sold) 1984 300ZX Z31 2+2 Turbo
(Sold) 1980 280ZX 2+2

User avatar
Grunzter
Posts: 445
Location: Epsom, Auckland

Post by Grunzter » Sat Oct 10, 2020 6:56 pm

Engine made it to the stand... :)

36-2 wheel made as per the Motec diagram, fitted but not fixed onto the Nissan Motorsports USA L6 Harmonic Damper.

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1980 280ZX #33 IMSA GTU Race Car ...nearly done!
(Sold) 1984 300ZX Z31 2+2 Turbo
(Sold) 1980 280ZX 2+2

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ZBeck
Z Club Member
Posts: 52
Location: Waitakere, Auckland

Post by ZBeck » Tue Oct 13, 2020 5:01 pm

Hi Grunzter,
enjoying your build!
I have some parts needing plating soon. Sand blasting them myself (not using rocks....) Who do you use and are you happy with the results?
Thanks

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bernjean
Z Club Member
Posts: 1623

Post by bernjean » Wed Oct 14, 2020 9:57 am

Thanks for posting, two great build in progress on the forum. Many thanks, you guys have made my day.
Bernie Kant
Club President

User avatar
Grunzter
Posts: 445
Location: Epsom, Auckland

Post by Grunzter » Thu Oct 15, 2020 8:22 am

I use these guys for plating.
http://www.acmeplating.co.nz/

I have found them very good, takes about ~1 week turn around.
Cash payment only.
1980 280ZX #33 IMSA GTU Race Car ...nearly done!
(Sold) 1984 300ZX Z31 2+2 Turbo
(Sold) 1980 280ZX 2+2

User avatar
Grunzter
Posts: 445
Location: Epsom, Auckland

Post by Grunzter » Sat Oct 24, 2020 3:50 pm

Rear name plate backing from the powder coaters, just need the "Bob Sharp Racing Wilton, Conn." added. Dash also back, came out a little semi-gloss rather than matt... may need to get it flocked (another day).
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Made up a simple mount for the six coils, just need to mount it to the car now.
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Also got a Steering wheel quick release thing, this one is form B-G Racing UK. Made the steering wheel location just right, and now I can actually get in without looking like a contortionist.
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1980 280ZX #33 IMSA GTU Race Car ...nearly done!
(Sold) 1984 300ZX Z31 2+2 Turbo
(Sold) 1980 280ZX 2+2

User avatar
Grunzter
Posts: 445
Location: Epsom, Auckland

Post by Grunzter » Wed Nov 04, 2020 2:21 pm

Drilled a few holes for the outside battery and ignition master cut out switch. Fits perfectly, and has the old heater hole below it so its easy to wire to. 🙂
Its orientated so the lever is inline with the car for aerodynamics 😛
Also started plumbing the fire suppression system, half way there...
Six nozzles, three in the engine bay, one in each foot well, and the last will be back to the fuel cell area.
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1980 280ZX #33 IMSA GTU Race Car ...nearly done!
(Sold) 1984 300ZX Z31 2+2 Turbo
(Sold) 1980 280ZX 2+2

User avatar
Grunzter
Posts: 445
Location: Epsom, Auckland

Post by Grunzter » Wed Dec 02, 2020 7:48 pm

Done some Christmas shopping,
Two sets of Racetech 6-pt FHR harnesses in black, two Sabelt window nets from Demon Tweeks, a Bell Rs7 Pro Helmet, and a Hans III 20-deg FHR.
I looked at lots of window nets and this looked like the best fit... lets see.

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1980 280ZX #33 IMSA GTU Race Car ...nearly done!
(Sold) 1984 300ZX Z31 2+2 Turbo
(Sold) 1980 280ZX 2+2

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