Alan

Some were never available (Pre GTS RHR), they are spectacularly expensive and are made of some of the crappiest materials known to man.

They do simply dissapear - bits fall off until there is nothing left - whetever you do don't touch them...

PSD system.

Alan

blown 87

Fixed it for you.

it is just unacceptable for Porsche to sell that crap for what they sell them for, and even if they were 50 bucks it would be too much for what you get.

I was talking about the build quality of the 928 a couple of days ago, compared to the Corvettes of the same vintage, this is one part the the Corvette plainly and overwhelmingly wins.

SQLGuy

Thanks for the info. Sounds like Jerry's got another customer, then.

After noticing that the GTS didn't have the liners, I checked the S4, and they look fine on that car.

Hmmm... with all these dramatically improved 3rd party parts (liners, door panels, center console)... there wouldn't happen to be anyone working on ABS headliners, would there?

Jerry Feather

I have given a little bit of thought to doing headliners in the past, but not much since there doesn't seem to be that much interest or real need, yet. That is something that I would expect to be vacu-formed, so I would have to have that process farmed out to my main Plastics guy at his shop. He is going to be doing another of my next projects there which will also be vacu-formed. The nice thing about doing it that way is I only have to build the necessary forms and not the equipment to do it with like I have had to do with the WW liners.

Jerry Feather

heinrich

Headliners aka ceilings, are VERY complicated on a 928 because of the sunroof frame. It is impossible (yes I said impossible) to remove and reinstal a sunroof frame ("surround") into another (replacement) roof liner, because the factory staples them. Even one in perfect shape (with staple holes) cannot be properly stapled back.

So the only option would be to eliminate, or upgrade to say aluminium frame or something like that. But then, how do you attach it to the liner? I've tried more than one way.

SQLGuy

My headliners (front and rear) are both pretty badly warped due to a water leak from somewhere.... not sure where yet. It looks like the top of the hatch seal, but the seal itself looks OK. Once I've got both headliners out, I think I'll have a better chance at seeing where things are leaking. Someone already mashed up the sunroof frame a bit, too. My GTS runs fine, but all the cosmetic abuse and neglect is going to take me a long time to correct... time and money.

Anyway, I was just thinking that, if such leaks weren't too uncommon, I might not be the only one with warped headliners, and plastic wouldn't have the issues with water that cardboard does... not that I'm not planning to fix the leak(s).

mpesik

It's too much to read for me.. I am just curious for the last 14 years - why the company/manufacturer didn't put a shield on the rear right fender !!!!!!!!!!!!!

heinrich

Well Mike they did... on GTS. I don't think anyone knows why not on earlier cars.

Nicole

Can't wait to get a pair of these liners. Mine look like a California road surface after the winter... lots of cracks, many pieces missing...

heinrich

You, and I, and wr all are gonna have to wait Nicole

mpesik

Good ol' you- Sir.
Your the best.

mpesik

continuation from Heinriche's last remark.- All my respect towards you as well Nicole.

Jerry Feather

I had my knee surgery last Wednesday and that went well. I was on crutches through the weekend and didn't get anything done but sit around and sleep. Yesterday I spent all day at work and got around pretty well without crutches. Today will be a similar day, but not as long, I hope.

Before the surgery I was able to get some aluminum material for use on the second form set for the outer halves of these liners. I hope to get to work on that this weekend.

I still have some refinement to do on the inner half part of this project; and, as usual, this project is starting to branch out. By that I mean that I find at a given point in just about every development I have undertaken lately, the project seems to take multiple directions. The "trunk " of this project has perhaps been the basic development of the blow oven and the basic inner form. Now I have several "branches" to develop such as some sort of set-up for secondary forming of the inner edge of the inner half wher it will be held to the car along the bottom of the frame, to develop a set-up for holding the two halves together for drilling the common holes for connecting them upon installation, to develop the system of mounting/connecting brackets to connect these liners to the original mounting points, and, along that same line, further developmenmt of some additional mounting points for the rear of the right liners in the earlier cars.

One thing I did get done while I have been down is some mental work on the nature and shape of some of the mounting/connecting brackets and perhaps how to make them. It may be that those will best be made out of aluminum sheet after the design is worked out in plastic.

In any case,m I am happpy to be able to get back to this this weekend, and maybe a little earlier if my weight bearing ability increases some before then.

Jerry Feather

S4ordie

Jerry, Gald to hear you are recuperating well. Take care of the body first, the liners second.

Hilton

Jerry, PLEASE do not fret on the details until the liner forms are shaped to fit in the arches of the car. There is a serious danger of getting lost in an over-engineering process here.

Things like joining the two liner halves together don't need much thought - a drill bit, a speed nut and a hex-head screw will work for each point they need to be joined; the same system the factory used for the liner attachment points.

Likewise, attaching to the body on pre'91 cars with no attachment points shouldn't be worried about too much in my opinion - we're a pretty inventive lot and most here would be able to knock up something satisfactory, especially with modern bodywork epoxies.

Focus on the shape of the main forms and get them complete - if once thats done you want to figure out an additional set of brackets to marry the forms to pre'91 cars then great, but they're not critical-path items towards a saleable product, unlike the basic liner forms.