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-   -   Torsional Rigidity Measurement...warning pseudoscience involved (http://forums.pelicanparts.com/porsche-911-technical-forum/820521-torsional-rigidity-measurement-warning-pseudoscience-involved.html)

911pcars 06-27-2015 09:37 AM

Shouldn't you plan for convenient service/replacement as well? Polycarbonate will scratch and visibility will change over time. No problem?

Sherwood

JohnJL 06-27-2015 10:17 AM

Yes, i am going to use a silicon or rtv to glue the window to the frame. When i need to replace the window i can "saw" through the sealant with a wire and replace the window.

911pcars 06-27-2015 10:40 AM

Quote:

Originally Posted by JohnJL (Post 8685960)
Yes, i am going to use a silicon or rtv to glue the window to the frame. When i need to replace the window i can "saw" through the sealant with a wire and replace the window.

Good. At first, I thought the structural adhesive was for the window.

JohnJL 06-29-2015 05:34 PM

Got some motivation in the mail today...sorry a couple are sideways, I dont know why Pelican render them that way.

http://forums.pelicanparts.com/uploa...1435628008.jpg


http://forums.pelicanparts.com/uploa...1435627875.jpg


http://forums.pelicanparts.com/uploa...1435627883.jpg


They are going to mbe mounted in these...CF fenders. They take some fitting but I am enthused...now back to the roof....


http://forums.pelicanparts.com/uploa...1435627874.jpg

JohnJL 07-11-2015 09:06 PM

I got a bunch of stuff done, with a couple of track days sprinkled into so Im a happy guy.

I glassed in mounts for the headlights, then trimmed back the fender. Taped it over from the topside and glassed in the backside. The plan is to then trim back to the light lip so the trim piece snaps right into place.

I spent a LOT of time aiming the headlights and positioning them when putting the mounts in place.

Also got the front bumper fitted and mounts fabricated and glassed in.

Maybe tomorrow I can cut the rear reflector panel out and fit the rear bumper.

The headlights have really been a challenge. I am learning for sure. Here is a camera dump.


http://forums.pelicanparts.com/uploa...1436677188.jpg

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JohnJL 07-12-2015 05:37 AM

So Ive never done anything like this before,, but so far I am pretty chuffed with the result. Overnight the glass all cured right and the tape comes away cleanly. I need to get a knife in around the edges to release the heaqdlight unit. Once that's done I will go back and clean up/finish the glass work with the headlight out of the way..




http://forums.pelicanparts.com/uploa...1436708177.jpg

It will take some work to blend it in and look good but I am pretty happy with it so far.

1990C4S 07-12-2015 08:11 AM

Quote:

Originally Posted by Iciclehead (Post 8163148)
Agreed, I wonder though if the front A arm see's lateral movement, which being somewhat "hinged" with the inner fender and trunk floor could cause a bit of toe in/out on bump. The X frame would stiffen it laterally more than anything...



Quote:

Originally Posted by vbnvj (Post 8706994)
Agreed, I wonder though if the front A arm see's lateral movement, which being somewhat "hinged" with the inner fender and trunk floor could cause a bit of toe in/out on bump. The X frame would stiffen it laterally more than anything...
Quote:

healthlifeok.com/green/images/31.gif[/img]http://healthlifeok.com/green/images/63.gif

Spambot reported.

JohnJL 07-19-2015 11:50 PM

More filling and mounting of the passenger headlight. I hooked up the headlight to a battery and checked the light pattern. I got it centered and in the center of the headlight's adjustment range in both directions. I also checked the adjustment screws moved the pattern enough so I wouldn't have problems later.

The side shot with the nearside passenger fender cut and the farside driver's fender in the original 911 profile shows how much difference there is, though to my eye the car still very much has a classic 911 'face.'

http://forums.pelicanparts.com/uploa...1437378353.jpg

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http://forums.pelicanparts.com/uploa...1437378423.jpg

http://forums.pelicanparts.com/uploa...1437378452.jpg



http://forums.pelicanparts.com/uploa...1437378461.jpg

JohnJL 07-20-2015 02:09 PM

Got the second light positioned and the mounts glassed in. I hope to finish the first layer on the backside of it tonight.

http://forums.pelicanparts.com/uploa...1437429948.jpg

http://forums.pelicanparts.com/uploa...1437429991.jpg

Also got the rear bumper fixed in place. I cut out my rear reflector panels and fit the bumper against the flange I formed. Then I tucktaped the edge, and added release agent and put a first layer of glass in to form a lip on the bumper that will bolt onto the body flange.



http://forums.pelicanparts.com/uploa...1437429995.jpg

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I have to compliment GT Racing on these fenders, bumpers and hood. Everything is fitting right on with very little massaging. Very light with good finish. He did mine about 2 years ago, if I recall it was 2 layers carbonfiber, 1 layer Kevlar?

JohnJL 08-02-2015 08:16 PM

So this is my build thread now I guess...

Spent 4 hours blasting the tub today. Another 6 hours stripping paint and filler from the doors, forming the metal edge around the doors, filling in the mirror holes and got onto the dash. I want a very simple dash and it doesnt get simpler than this. Almost all the vents are bloched off, heater controls, switchgear, lights, radio, everything is blocked off and glassed behind or filled in. I got 3 layers of glass and 3 layers off metal filler on tonight.

http://forums.pelicanparts.com/uploa...1438575101.jpg

http://forums.pelicanparts.com/uploa...1438575135.jpg

http://forums.pelicanparts.com/uploa...1438575155.jpg

I glassed in the bumpers and mounts, welded on brackets on the car and blasted them for primer.



http://forums.pelicanparts.com/uploa...1438575201.jpg

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I have a set of plastic lightweight front and rear turn signal light boxes from SMC.

JohnJL 08-02-2015 08:19 PM

The lower dash and up around the instruments will be one continuous surface in paint. The upper dash will require some work, involving foam and fiberglass finally finished in alcantara.

JohnJL 08-02-2015 08:48 PM

So my bumpers are mounted without the use of the OEM bumper mounts or the towhook. Any reason the areas in red cant be cut off? They look like about 5 lbs of dead weight right at the worst space.

I did a bunch of bracing to the rails/across the corners in the engine bay. Those mounts dont look like they add any bracing and are now superfluous?

http://forums.pelicanparts.com/uploa...1438576476.jpg

http://forums.pelicanparts.com/uploa...1438576507.jpg

No rear reflector panel needed.

http://forums.pelicanparts.com/uploa...1438576579.jpg

Front fender and bumper mounts. Front roll bar mount reniforcements welded in and blasted back for primer. THe backsides of the seam welds dressed for primer.

http://forums.pelicanparts.com/uploa...1438576623.jpg

Patch panels all stitched in, including torsion bar covers.

http://forums.pelicanparts.com/uploa...1438576637.jpg

Back on the rotisserie and front ready for washing/degreasing/primer.

http://forums.pelicanparts.com/uploa...1438576650.jpg
Strut towers braced in, cleaned up and almost ready for primer. I need to patch in and shape the camber/caster holes a bit and make them pretty.

http://forums.pelicanparts.com/uploa...1438576654.jpg

Pedal area. There is a thick plate welded in hte outside in front of the cluster mount to encourage a firm pedal.

http://forums.pelicanparts.com/uploa...1438576686.jpg

http://forums.pelicanparts.com/uploa...1438576692.jpg

Front oil cooler ducting cleaned up and ready for primer, seamsealer.

http://forums.pelicanparts.com/uploa...1438576698.jpg

JohnJL 08-03-2015 06:45 PM

Another day of media blasting, degreasing and primering the raw metal. Wife wanted the garage powerwashed out too so that was another 3 hours...





http://forums.pelicanparts.com/uploa...1438655678.jpg

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1990C4S 08-04-2015 05:03 AM

What kind of mig welder do you have? pic?

JohnJL 08-05-2015 02:13 AM

Lincoln 180c with 75/25 gas. Its in the background in the 4th pic from the bottom.

JohnJL 08-15-2015 02:22 PM

Continued welding in new lips for the 993 flush-mount rear quarter window seals. I was able to play with the size of the opening so that I think it will end up flush with the body all around without altering the seal at all. Lets see. The window will be from a piece of makrolan I have.

http://forums.pelicanparts.com/uploa...1439677112.jpg

http://forums.pelicanparts.com/uploa...1439677270.jpg

JohnJL 08-26-2015 04:07 PM

Another 10 hours on fabricating and welding in new quarter window lips, oscillating scraper and cup brush on the bottom



http://forums.pelicanparts.com/uploa...1440633827.jpg

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http://forums.pelicanparts.com/uploa...1440633934.jpg


Just noticed tonight Evercoat Metal 2 Metal features a 911 on the label...

http://forums.pelicanparts.com/uploa...1440633820.jpg

JohnJL 09-19-2015 08:40 PM

Its been a while, a good bit of progress to report. Underside is finished, Frunk and engine compartment are painted and done. Tonight I did a few coats of filler on the lower dash. I foamed in the upper dash, shaped and sanded it back then put a layer of fiberglass on. When that sets I will put some foam on and finish with alcantara...

http://forums.pelicanparts.com/uploa...1442723856.jpg

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JohnJL 09-19-2015 08:45 PM

more

http://forums.pelicanparts.com/uploa...1442724192.jpg

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JohnJL 10-04-2015 07:35 AM

Replacing the dual wipers with a single wiper
 
Here's another rabbit-hole project I am building into her.. I have seen a few threads on lightening the existing wiper and linkages, and mention of the use of a 944 rear motor (NLA) and I have seen those 79-80 Sciroccos with single wipers.

The route I am trying has the goals of 1. passing inspection, 2. keeping my wind shield clean in light rain for limited time (ie not expected to deal with huge downpours, ice or now) and 3. lightweight and 4. accomodate a single wiper in fitting in the the streamlining I have done on the rest of the car.

I settled on using a rear wiper motor from a Jeep, across their range from the 90's through the 00's. Interestingly it arrived and is a Valeo unit. So before anyone gets all insulted for putting Jeep parts on a Porsche, its the same manufacturer that makes many of our alternators and regulators.

THe unit is very small and lightweight. WHen I get a chance I will dig up the original motor and linkage and compare the weights.

The dimple the wiper arm sticks through the body fits the Valeo unit perfectly. Of course I have 2 of the dimples to accommodate the original wipers so having confirmed there is plenty of room under the dash for a bracket and the motor, I plan on cutting out both dimples and relocating one of them to the center of the car. Then patching in the two old arm hole.




http://forums.pelicanparts.com/uploa...1443972565.jpg

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