camlob

I am thinkinf of having my car seamless welded. Ir will cost around usd1.7k so I want to get your guys opinion if its worth it. I know that the 964 RS has it and gives its character due to the increased stiffness. I will the car more on the track.

One thing is the downtime will be around one month. It will give me the opportunity to take out all the sound deadening.

AOW162435

It's called seam welding. Maybe change your subject line.


Andreas

camlob

Done. So have you done it or ridden on a car that had it done?

CalvinC4S

Makes sense in the suspension areas, but I would think cracking may be an issue if you do the whole car.

If you don't have a welded in cage yet, that may be a better way to get it to tighten up.

Mark in Baltimore

Is this continuous seam welding (no breaks) or stitch (as opposed to spot) welding as the cup cars have? If you have the coin, go for it, but I wonder if it's a bit much for a DE car. If you race, I can see a slightly higher benefit but not much. That said, I will say that the cool/bragging rights factor is pretty high and would love to have it done to my car.

ltc

The first person to mention RSAmerica, rolled fenders or crinkled paint, in this thread will be banned

(sorry, flashback from the 964 forum)

FWIW, the 964 Cups were seam welded.

Mark in Baltimore

Well, at least the RSA's had hand-built and hand-picked engines, right?

ltc

Yes and they ran a special viscosity oil

993James993

I guess it would be the next logical step after you have exhausted all other mods.......Good luck with seam welding

In all seriousness, I didn't see a short shift kit in your list of mods or an RS style interior. You could loose a little weight replacing your interior door panels. Unless I missed those I would start there before seam welding, but you obviously know what you are doing!

For those who missed may have missed Camlob's build thread, here is his NSFW 993

CalvinC4S

Just the shock towers right? Or whole car?

993James993

http://www.carreracupusa.org/street/.../Seamwelds.htm

RollingArt

Seam welding jobs I've seen have all been done with stitch welding, not a continues bead. I think a continues bead is over doing it and may cause more damage than good.




Phil

trophy

Hey Paul, To have this properly done the car needs to be stripped back and put on a cellette jig (or similar) you need to make sure the car doesn't twist during the process... by the way the car should be put on a jig when welding in a roll cage as well.....

Stich welding does help alleviate the chance of any twisting but if it were me I would have the car on a jig either way.

camlob

Hi guys and thanks for your responses. The welds that I saw I think are stitched and not continuous.

Steven - They will completely strip the car to its bar shell. Nothing will be left, not even the dash. They will put it in a jig that can rotate the car. One of his mechanics was a supercup mechanic. So maybe it will give me some comfort. You know after getting my electricals sorted out I dont feel like tearing out again. It will be done on the whole car and thats why they strip it to its bare shell.

So I really want to know if its going to be worth it. Guys who use supercup cars wont have the before and after experience. I was talking to a guy who did it to his Suzuki race car and he said like it was 40% more stiffer. I go what? Probably his stock shell was so flexible! LOL....

993James993 - This will give me the opportunity to do the RS carpet and of course the door cards. I have been thinking of the FD golden rod shifter and am still deciding which one to get.

He usually takes off parts and doesnt put it back for race cars. So he said mine will be a special case. Oh boy, taking out stuff is easy, putting the same stuff back in is a tedious job.

How about front strut braces? Nobody talks about it.

Barty964rst

I have had a C2 993 and now have an RS 993, I also have a N-GT 964 and RS 964 Touring. The difference on all 4 is as you would expect, very very different.

It depends what you want to use your car for.

They all have their merits, they are all different and none are the ultimate incarnation for all things.

What do you want from your car?, what do you want it to do? Once you answer these questions, you can then start to mod your car accordingly.

The difference from a standard C2 / C4 for spirited driving v an RS is significant, but if you use the car everyday and long journey's the C2 is about spot on. For track work N-GT, Cup or RSR is the way for sure, the chassis are just so rigid, welded cage.