CLR Project Leichtbau: adding lightness to the tune of 250kg

ELA said:

Hi Phil, I've done a few areas on my latest Alfa project regarding some thick aluminum rotating parts but to be honest in that video you are dealing with secondary structural areas probably only 0.9-1.1mm thick, so in total my guess is 3-5kg saved. It is a lot of work for very little gain but the main benefit of lightening holes such as this, would be for improved structural rigidity.

I would like to try and make it to Dinslaken but my main focus just now is getting the Alfa finished. Hopefully within a month I'll have a clearer picture as it would be good to do a Moselle/NBR tour with some of you guys that may be interested :wink:

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Phil 997 said:

Richard ,I was watching this video and it made me think of you . have you done or considered doing this to lose more weight or are there more cons than pros in doing it.

https://www.facebook.com/kkclassicporsche/videos/177373823362897/

also are you doing Dinslaken this year mate :thumb: :thumb:

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Shalmaneser said:

Phil 997 said:

Richard ,I was watching this video and it made me think of you . have you done or considered doing this to lose more weight or are there more cons than pros in doing it.

https://www.facebook.com/kkclassicporsche/videos/177373823362897/

also are you doing Dinslaken this year mate :thumb: :thumb:

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That looks very pretty but you'd have to be careful you weren't compromising the structure of the part quite badly by doing this. On non-structural parts it's great but it could end up seriously reducing the torsional rigidity or crash resistance - as I'm sure it has done so in this case.

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LightweightRob said:

Hi Richard,

Well, I got rid of my Alfa, to have less headache, to be able to focus on my Porsches. You're making it the other way round.
Almost but not quite as my Porkers aren't going anywhere

I like your approach to hand over the car to Manthey Racing. Those guys are benchmark!
My issue was that everyone is focused on performance only. Not about the feel of driving and interaction with the car on reasonable speeds. Therefore you have to be careful with Manthey here.
They are making a weapon out of your car and will reduce the playfulness and driver interaction. You can't just hand over the car to them and expect a result as per your expectation. You have to be involved in this project yourself.
I struggled to find a company that understood my needs. They are obsessed with more grip, more performance, more everything.

I fully get that, I will be involved with all test driving and geometry changes; my aim from the start was to create the most exciting drivers 911: more original ST or R rather than latest GT3RS, so have no fear, my car will not be turned into some track mule

That's why it took me a lot of research, fine tuning and a step by step approach to come closer to my target. At the end I spend a day to figure out a geo setup with a geo expert that I like and worked with different spring rates from à–hlins(springs are reasonably priced at à–hlins), against different opinions of experts.

This is the reason I am going to Manthey, they have professional race drivers so should be able to detect exactly what I need to do in order to get exactly what I want from the chassis, well that's the plan anyway.

You know, Porsche designed the car with intention to generate maximum grip at the rear, I really struggled to reduce some camber at the back to make the limits of the car more approachable.
I wanted to have good handing, without any weight savings. So if I have weight savings applied, it will get even better.
But this is all in all a long and maybe boring story...

This spring is the aim to get rid of 103kg, with still remaining focus on overall driveability and fun.

- Relocation of the Li-Ion Battery further forward and down, where the tool box was located
- Driver and Passenger seat
- Removal of the Audio stuff
- Getting rid of the carpet foaming
- 18" wheels with narrower tires
- Removal of Front-Rear Bumper Support,
etc.

Can't wait to feel, how the car is going to improve further.

I just received adjustable semi-solid engine mounts today, can't wait to try them out. Just a question regarding the gearbox mount. Which one do you recommend, a stock version or a PU version? Do you have the tool to press it out? Should be an easy job with the right tool. No one is able to help me here, seems like the German guys in the German forum don't care a bout driver involvement

The easiest solution would be to fit the power flex inserts into the existing mount, but honestly pressing out the original should not be difficult with a standard 30T press.

Will be fun in combination with an adjustable sway bar.

I have difficulties to get my FIA seats and steering wheel extension TUV approved. Do you have a TUV on hand who is willing to help here?

Wie immer in Deutschland, schwierig und teuer! For something like the parts you mention, there are a few options, let me know nearer the time

Next step will be, selling my boring 997 Turbo to get some liquidity and to be able to focus on this project.

Then moving on with interesting stuff like a carbon roof and ducktail end of the year, need your advice when moving on with this stuff.

Sounds like you mean business with your project best of luck

Should be my absolute dream car by 2021
uh:

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Shalmaneser said:

A few years ago now, but back here:

http://911uk.com/viewtopic.php?t=106137&postdays=0&postorder=asc&start=660

You manage to get the cams out of the engine while the engine is still installed in the car. I'd love to change my Variocam sliders and this would seem to be the way to do it with the engine still in the car. How much of a nightmare was the job? It looks like once you get the exhaust mounting bracket removed (which looks to be tricky to be fair) the rest of the job doesn't look to bad. Would you agree with that assessment? Any tips or tricks?

You've also only shown the left bank, would the other side be more tricky?

Any wise words much appreciated, and thanks for a great thread!

Here's hoping you manage to put a few more miles on the CLR over the next few years!

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