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Porsche 904 Indy


89AKurt
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11 hours ago, cobraman said:

Car is coming along great ! Oh and yes the front spoiler would be crazy,,,,,,, so you have to do it ! :D

Funny you should say that....

Since I had the radiator vent holes in the sides, I centered the brass tube in there.  It was a trick to drill from both sides, much like digging a railroad tunnel through the Alps and meeting in the middle, started with a smaller drill, then adjusted with the bigger one.  Found a paper clip that was round (some are flattened a little, and not shiny) and fit inside with just enough resistance.  I wanted some of the wings to stick out in the parked/slow speed mode, when you hit 88 MPH they come out 50%, at 155 MPH 88% with an additional 10° attack angle, and over 180 MPH they project 100%, with a constantly variable angle that is read from the spring compression sensors.  During hard braking, they rotate 90° to act as air brakes.  I wind tunnel tested it.  :rolleyes:  For the Dukes of Hazzard jumps, they help for lift off.
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Started on the rear wing hydraulic strut, no pictures.

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15 hours ago, bobthehobbyguy said:

Front wings look great.

Good, thanks!

Managed to make a working rear wing.  I should have tilted the hydraulic ram, but needed the length, so had to make the front hinge complicated.  Made numerous parts before getting right.  Test fit with wire, works good, but needs tightening up.
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In full stop mode:
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Speedway mode:
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Ordered these via eBay from Hong Kong, arrived before I expected!  Too bad the least number of emblems are Porsche, I already have Ferrari coming out of my ears.
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Have a problem that is creeping in, the engine body is shrinking inward, now have a nasty mismatch with the cabin, may need to glue in a steel brace that can spring it back out.

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Big whoop time today, added a steel brace so the engine cover would match the cabin.   Used the caliper to get the dimension, made a wood spreader, the super-dooper-glued in the wiper blade steel brace.

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On ‎5‎/‎23‎/‎2019 at 12:59 AM, 89AKurt said:

Good, thanks!

Managed to make a working rear wing.  I should have tilted the hydraulic ram, but needed the length, so had to make the front hinge complicated.  Made numerous parts before getting right.  Test fit with wire, works good, but needs tightening up.
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In full stop mode:
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Speedway mode:
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Ordered these via eBay from Hong Kong, arrived before I expected!  Too bad the least number of emblems are Porsche, I already have Ferrari coming out of my ears.
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Have a problem that is creeping in, the engine body is shrinking inward, now have a nasty mismatch with the cabin, may need to glue in a steel brace that can spring it back out.

I have a bunch of these as well....they are VERY nice!!...i'm with you on the amount, or lack of.....Porsche bits......wish they'd make other car brands, but I,ve only seen these ones.

 

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2 hours ago, Dann Tier said:

Its like Porsches answer to a Ferrari Dino.....VERY nice design!!!!

Yes, I think that all the time.  When I contemplated redoing the scoop intakes using left over Modena scoops, I stopped because it was morphing into a Dino (not a bad thing).

2 hours ago, Dann Tier said:

You are CRAZY!!!!, but in a good way, bud!!!!

Yea, insane at times.  :lol:

Cut out the other door.  This time I glued in some steel screen (can't really see it here) at a critical area to prevent the lower panel from separating from the body.  Also refined the wing support.
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Making the door jamb, using up the other rear wing for this.  I was thinking of keeping the fuel filler in the original location, but after making the underside elbow thing, have decided it needs to be re-located in the center of the hood (where the body mount is would fix that sink mark).
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Pleased to say, that the major construction is done!  I have small details to do, but I could sand and start painting.

These are the best opening doors I've ever done.  Managed to duplicate the second one in reverse close enough for government work.
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I've glued so many pieces together, it looks like a Chinese puzzle.  I've glued in little blocks, so it practically snaps together.
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6 hours ago, doggie427 said:

Beautiful idea and realization. The amount and quality  of fabrication in this build is off the charts. Well done Kurt.

Thank you!

I got the idea for making this an entry for the Silver State Classic Challenge, requested a PDF of their door number "plate".  Hope I can, that would be the place to run this car.   (linked to the forum with the email)

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Famous last words: "... the major construction is done! "  After reading the Silverstate rules, *had to* build a roll cage.  First time I have done this, guess it's okay.  Also started on the windshield, ground/sanded off the cast-on wiper; glued in aluminum windshield retainer clips (that are hidden, just so I don't have to glue it in).
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Found the almost perfect wiper in the parts box, it's just reversed, should be easy to flip and add a tiny rubber blade.  ;)  The windshield has some dip on the inside where the wiper was, but the "real" one should distract from that.
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It's been a constant battle of testing for interference when new parts are added, talked too soon about doors working, conflict with roll bar and other aspects made it a pain.  The cage was actually sort of fun to build.  Found a MINI Cooper instrument gauge to add, still need to make the parking brake.
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Laid out 90% of the parts, at least what have been worked on.  Then I wet-sanded the body.
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PAINT!!!   Now the fun begins!  Sprayed the body with Testors white primer, knowing it was going to be fixed and sanded more for another primer coat.  Always frustrating to think I got everything, then soon as paint hits it's "oh I missed a spot ..... oh another ..... and another."  I'm contemplating what color, have a collection of cool nail 'polish', test samples on white cardboard, the light blue is similar to the rendering on the first page of this WIP.
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More paint.  I was making decisions as I went, the fire tower frame started as gloss black, but figured it still looked like painted steel, so sprayed polished aluminum, knowing the oil cooler and air filter box will contrast nicely.  The roll cage is super delicate, the scariest part is moving it around.  Thought Panzer grey for the chassis was appropriate.  So far almost 50 shades of grey.....

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21 hours ago, bobthehobbyguy said:

Wow this is coming together quickly. Very nice work.

Yea, I'm in full-out obsessed mode.   Thanks!

20 hours ago, ATHU said:

How cool is this!! Excellent work!!??

Thank you!

3 hours ago, Rider said:

Very enjoyable to watch this come together,  great engineering/imagineering, love the door hinges. 

Thanks for checking in too!  I'm really happy with them too.   Get your old-fashioned wiper replacement blades while you can, nowadays it's a one piece plastic unit.  LOL

Helps to stay away from the computer, made good progress on Indy 500 day (I haven't watched a race since one that was being led by a quarter lap for many laps until near the end someone crashed, at the re-start second place must have had the max boost on and drag-raced into first, stole from the deserved winner IMHO).  Painting everything but the body parts, I airbrush much as possible.  For once, used up a bottle of flat black, that paint usually goes bad before I consume it.
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The valve covers were the last parts cut from the sprue, and no modifications.  I have the transmission upside down to show the cheap lighter valves for the shock/spring units.  Parts box detail added to the transmission, also had cut off two tiny rectangular cover things from the Indy kit, found a home (I'm trying to use up all details from the kits).  Cigarette package foil used for insulation.
Side story:  when I was a pool shark bar fly (that stage is now history), I would watch for people smoking Camels that came out of the cardboard package, to get the foil, and when their lighters were used up, I would ask for them, and explained why.  LOL
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Engine installed, not glued in with a glob of glue.  Radiator with Detail Master radiator face, and what was the radiator is now the K&N air filter (or does it look like a furnace filter?).
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Front suspension is done.  Again lighter spring/shock units.  Have the steering permanently installed, using wire insulation for retainer "nuts" with a dab of superglue.  Hope I will be able to connect to the steering shaft!
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Sprayed Alclad stainless steel on the exhaust, figured that represents Jet-Hot good enough.  I don't like to brush paint, but did all the suspension arms, brake disks and calipers.  Not worried about the hubs because the wheels will be glued on and cover them.
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I screwed the engine on, not relying on goober-glue.  I did not go on the centerline because the glue seam is there, and screws could strip out.  I added a hole, with a scrap box piece and a photo-etch drain plug.   You can see the springs.
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Started the interior.  Seats are my mix of Africa Korps desert sand.  Acrylic paint mixed with tile grout on the floor to simulate Rhino bed liner.  Decals for the gauges, even though the Indy kit had raised detail, I really hate painting them, but this was about as frustrating.  Photo-etch screw heads for ignition and switches.  The 904 kit was missing the shifter, that's the Indy unit with cut-off 904 piece for the boot.  Handbrake was molded into the interior, so I made this from a needle, wire insulation, and chunk of plastic.  Started on the seatbelts, Studio 27 makes a nice aftermarket set, but I needed to rob a Detail-Master photo-etch to make it old-fashioned adjustable.  Indy pedals are Alclad polished aluminum.  I *need to* get this done, so the cage can get glued in so it doesn't break for the umpteenth time.
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4 hours ago, cobraman said:

Looking good , nice work !

Thank you!

I wanted to finish the interior, mainly to get the rollcage in a safe place.  Used the first emblem on the steering wheel.  Now that I'm looking at the gear shift, that shaft looks HUGE!  Wish the seatbelts were the same color throughout.
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Wet sanded the body, again.  Still some blemishes, but not enough to redo.  Tried these Hobby Design carbon-fiber decals for the first time, the Solva-a-set works with them.
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Sprayed the last of the Testors white primer.  Almost forgot the Indy mirrors, which were modified.
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Sprayed numerous coats of clear over the carbon-fiber.  Started a project onto itself, the Hobby Design fire extinguisher; there are decals for the emergency switch, so need to make that too.  The final assembly is always dicey with numerous scratch-built parts, expecting something to crop up.
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SCREW UP DAY!

Despite using a jig, and screwing the engine onto the chassis, still had a nasty mis-match of the air filter to turbo.  Should have checked *before* doing the decal.  I was planning on some fitment issues, but this was bad.

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For some reason 'return' isn't working at the moment.  I painted gloss white because I could see a shadow through the primer.
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My drying booth:
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A couple hours later, I quickly wet-sanded the dust spots, then chose this color.  It's always dicey to use nail 'polish' for paint, needs more thinner than usual.  Check out what black underneath result is.
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Didn't take much to screw up, so have some back-tracking to do.  grrrrrr
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Everything back into the drying booth.  I changed my mind on the wing support, had to paint black before doing the carbon-fiber decal.
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I'm not into doing a WIP anymore, this is embarrassing. :unsure:

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30 minutes ago, Kemszi said:

It's an interesting build, i really like it
And the body color is also nice
How you use the nail polish? Add thinners into it?

Thank you.  The cosmetic aisle is a favorite place for me.  :rolleyes:  Yes I add lacquer thinner, I get gallon cans from the auto paint store.  I use a 'slow' and more expensive thinner for painting with.

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