Really? Dammit! Looks like I just took all the performance out of my car!

Hey do you how much more they weigh than stockers?

thanks!

 

Yes your car is now simply a 996 C4.

 

Well then I REALLY overpaid!

I just got a reply email from HRE directly on the weight of my P40s. Someone correct me if I'm wrong, but these #s seem lighter than stock to me, no?

Front 21.5
Rear 25

 

Dont rely on what a manufacturer or vendor may tell you. Take the scale out of your bathroom and weigh them your self. That is what I do. Just as you wouldnt rely on a tuner to tell you how much hp your car is putting down with their performance package without seeing a dyno sheet (from your car) dont take their word on weight either.

 

That IS lighter than stock solids by a good margin and about the same in the front as stock hollows and 1 lb less in the rear than hollows.

I agree, you may want to confirm, but they wont be off by more than a 1lb or so.

Either way you have wheels lighter than the large majority of wheels that come directly from Porsche. 996 and 996 TT,GT3,GT2,C4S, and many others are heavier.

You are certainly on the low end of the weigh spectrum of wheels on Porsches, YOU ARE NOT LOSING PERFORMANCE!

 

only nerds run 18s on their 996

 

The dyno argument is a little apples to oranges for me.

But do you really think a huge high-end wheel maker like HRE is gonna grossly lie to me on the weights when it is easy for me and others to confirm? I just don't think they would make that dumb of a PR/marketing move. Doesn't make sense.

 

This is exactly what this thread needs!

 

Joe Weinstein's analysis is spot on. He is also one of the most knowledgable guys on this board when it comes to suspension and race tuning.

Heavychevy, with all due respect, you should probably pay more attention to what Joe is saying rather than dismiss his analysis as only having to do with ride quality. He has a hell of a lot of experience, probably more than you and me combined, several times over.

The sidewall stiffness or "spring rate" of the sidewall has everything to do with handling, not just ride quality. It determines how progressively or suddenly the tires break away, absorb bumps (especially under lateral load), etc. Suspension tuning can only compensate so much.

In addition, on the 996 it's pretty much impossible to maintain the exact same rolling diameter on a 19" wheel as an 18" wheel. Porsche went to 19" on the 997, but one must realize that the overall rolling diameter on a 997 chassis is LARGER than a 996, and all the systems are calibrated for such. The sidewall aspect ratio on a 997 wheel is also larger on the 996, they run 30 or 35 series in the rear, as opposed to a 25 on a 996. So more sidewall on a 997, even at the same diameter.

Maybe I tend to drive hard, but for me, having personally experienced 19's on a 996 Turbo, I can safely say that I do notice the difference in handling and breakaway characteristics, and no way in hell I would ever run 19's on a 996 chassis car.

You also forgot to mention that you cannot find Porsche approved N-spec tires in 19" for the 996 fitment. This alone also makes a difference because the N tires are specifically engineered for Porsche, including the tire compound, sidewall stiffness, and carcass structure.

This is not to say that a thinner sidewall 19" tire couldn't be engineered to compensate for the difference in sidewall stiffness, etc. but the fact of the matter is, there aren't any. To me running a 19" wheel on a 996 is for pure bling, and I don't claim to be the best driver on the board, but I can definitely feel the difference. Try running 19's on a GT3 or GT2, you would feel the difference even more.

To the comment as to Porsche not designing these cars hard out of the box, my response is you should have bought a GT3. Turbos were really not meant to be track oriented out of the box, and you probably knew that when you bought the car but you didn't want to spring for the extra $$$ and buy a GT2

Some of the arguments stated on this thread by others is just pure ignorance. It's amazing how clueless some people are about their cars.

 

Jeez, I guess we should all bow to you. People have their cars for different purposes and they don't need you approval

 

No need to get defensive, just stating my 2 cents. I'm not berating people's choices per se, just their logic.

To each their own, hope you enjoy your Turbo cab. A very nice car I would never personally own.

 

I forgot....where did I ask for your approval? And I do enjoy my cab

 

It's not an approval. It's my OPINION. I guess USC didn't teach you the difference. But granted I'm sure you could beat me at beer pong and last longer on the keg stand than I ever could. Guess I shouldn't have turned down my full ride offer there.

 

Apples to oranges? If you race you would know that losing weight is just as important as adding hp.

Is it possible that not every wheel weighs the same to the nearest .1 of a pound? Maybe they round down, ie 19.9 pounds stated as 19 pounds. 0.9 pounds of rotational weight in each corner is 3.6 pounds. That is important to me..

 

Have fun with your beer pong matches, boys. I'm all done here!