GT3/GT2 Performance and Track Discussion on the Porsche GT3 and GT2

New HRE P40 Centerlock Wheels @ SharkWerks

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Old Oct 6, 2010 | 04:54 PM
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Exclamation New HRE P40 Centerlock Wheels @ SharkWerks

Hey fellas I figured I'd show you some of the new HRE center lock wheels that showed up for some customers/friends projects. We've got a set of P40s in satin black for a 997.2 GT3 and also a set of charcoal P40s for a 997.2 TT S.

Here's a rear 19x12 for the GT3 in satin black:


A front 19x8.5 for the 997TT S in charcoal. Notice the extra milling (weight reduction) on the spokes vs the older P40 design in the background:


Spokes close-up:


I'll post some pix as they go on cars next week but I have to say I've always been a fan of the P40 in past years and with a slightly improved design for weight I'm liking them even more
 
Old Oct 7, 2010 | 11:08 AM
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Ok fellas here we go. So if my memory serves me right the stock fronts are 23.5 and rears 28 pounds.

There's at least a 0.2pounds of weight due to the padding to protect the wheel. Here's the 9 inch front:


And a shot of the 12 inch rears:


Darned light!
 
Old Oct 7, 2010 | 01:05 PM
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Nice pics and nice wheels!
 
Old Oct 7, 2010 | 03:07 PM
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Originally Posted by Mercedes Benz
Nice pics and nice wheels!
Danke
 
Old Oct 7, 2010 | 06:35 PM
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19.7 and 22.8 is very good! my stocks weighed 23.4 and 29lbs.
 
Old Oct 7, 2010 | 06:40 PM
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Originally Posted by DD GT3 RD
19.7 and 22.8 is very good! my stocks weighed 23.4 and 29lbs.
Yep not bad eh?!!
 
Old Oct 7, 2010 | 09:42 PM
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Would that weight reduction really make a big difference??

If so what would be the driving characteristics?
 

Last edited by stujelly; Oct 8, 2010 at 08:58 AM.
Old Oct 7, 2010 | 10:38 PM
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Wow, very light! They look great...

Just curious though, how come that wheel isn't fully painted/powdercoated through the wheel barrel, like how the other non-centerlock black wheel is in the background?
 
Old Oct 8, 2010 | 07:14 AM
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Originally Posted by chaud
Wow, very light! They look great...

Just curious though, how come that wheel isn't fully painted/powdercoated through the wheel barrel, like how the other non-centerlock black wheel is in the background?
The reason why they don't paint through the wheel barrel is obvious to me....saves weight Anything to save a few thousandths of an ounce.
 
Old Oct 8, 2010 | 07:35 AM
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Originally Posted by chaud
Wow, very light! They look great...

Just curious though, how come that wheel isn't fully painted/powdercoated through the wheel barrel, like how the other non-centerlock black wheel is in the background?
It would play hell with the center locking tolerances!! They are that close!!
 
Old Oct 8, 2010 | 12:59 PM
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Originally Posted by gt3geoff
The reason why they don't paint through the wheel barrel is obvious to me....saves weight Anything to save a few thousandths of an ounce.
LOL, that thought crossed my mind, but to be honest, it looks more sloppy than intentional, since there is what seems to be overspray unevenly scattered throughout it...
 
Old Oct 10, 2010 | 07:25 PM
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So about 20lb weight savings total. Very nice.
 
Old Oct 11, 2010 | 08:43 AM
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Originally Posted by stujelly
Would that weight reduction really make a big difference??

If so what would be the driving characteristics?
Car feels 100s of lbs lighter and bumps in the road feel smaller; even smoother. I dove a Bentley GT speed with and without ceramics and could feel a huge difference.

To me it feels like you could add a 0 to the number so a 4Lb loss become a 40. Un-sprug makes huge difference in driving characteristics.

Imagine the kinetic energy to spin up or slow down a weight such a wheel.
The car stops better; takes a lot of breaking power just to slow the wheels and breaks, let alone the car. Car accelerated better for the same reason. Finally shocks don't have to do as much work controlling the moving weights.
 

Last edited by Sloopy; Oct 11, 2010 at 08:46 AM.
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