Rennteam 2.0 - EN - Forum - Re: I think I've narrowed my After-Market Wheel Se - Page1

Nov 9, 2007 1:50:11 AM

cannga: Expert; Loc: Los Angeles's "twisties" :-) , United States; Posts: 1940, Gallery; Registered on: Feb 6, 2005; Reply to: cannga

Re: I think I've narrowed my After-Market Wheel Se

I found the threads,actually not one, but two people had problems, using the same 315 tire that you are planning. One even with a similar wheel, Champion magnesium.

http://www.6speedonline.com/forums/showthread.php?t=91742&highlight=315
http://www.6speedonline.com/forums/showthread.php?t=76165&highlight=warning

Tire calculator:
http://www.csgnetwork.com/tiresizescalc.html

Quote:
cannga said:
Gregg,

If you would like to go with 325, somehow confirm that it won't damage the differential (there was a thread somewhere, maybe 6speedonline?). There is a tire calculator somewhere that I can't find now either, so following is 100% guess work on my part, as I don't know much about tires, or differential, and it's been a while since elementary math (someone corrects me if I am totally off the path).

Stock rear 305 30 19: Height of tire therefore 305mm x .3 = 91.5mm

Your planned rear tire 315 25 19: Height of tire 315 x 25 = 78.75mm

The stock tire is therefore about 13mm (.5 inch) bigger in radius. IOW your planned 325 replacement tire is SMALLER in diameter by 1 inch, and smaller in circumference by 3.1416 ( someone checks my math please) inches or so.

I vaguely recall from that old thread that the ratio of rear to front tire circumference has to remain around a certain range, or the differential will be damaged, and vaguely recall (not sure at all) that the poster was doing something similar to what you are doing.
Whether this 3 inch difference causes the ratio to exceed that range? I don't know.

Quote:
STRADALE said:

This is what I'm considering:

Michelin PS2's.
235/35/19 tires
315/25/19 tires

That way I don't have to make the tire swap from the stock wheels to the new wheels but the sensors are $98 each.

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Nov 9, 2007 1:58:25 AM

cannga: Expert; Loc: Los Angeles's "twisties" :-) , United States; Posts: 1940, Gallery; Registered on: Feb 6, 2005; Reply to: STRADALE

Re: I think I've narrowed my After-Market Wheel Se

You know about the titanium bolts right?

I remember being surprised at the weight saving; it was much more than expected, mainly because there are so many bolts. IIRC was 1-2 kg (???? not sure). This supposedly is the real thing--used in race cars (all about cutting unsprung weight), not just cosmetic, but whether you and I could feel the difference, I don't know.

But since we are all in the cuckoo's nest together... thought I would just mention it.

Quote:
STRADALE said:
Thanks so much Cann, Whoppsy, Jason. You're right! I thought it was just a difference in width but now get what you're saying. I'm going to keep stock sizes & tires then for sure. Saves me about $1600 worth of tires too. You know this place is so freakin helpful making the right decisions & just as important has saved me from making costly mistakes. Yes Jason the Champion RS171 is TPMS compatible & does not require spacers. They should look really cool. I got Chrome bolts too, the ones from the WERKS ad that has the dimples. It's all in the details imho... Wonder if there is a choice of valve stems? The ones on these pics that my guy at Champion sent look Chrome.

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Nov 9, 2007 2:24:43 AM

atomic80: Rennteam Pro; Loc: Bellevue, WA USA , United States; Posts: 2596, Gallery; Registered on: Feb 9, 2006; Reply to: cannga

Re: I think I've narrowed my After-Market Wheel Se

I had chrome lugbolts on mine originally but they kept coming loose because the chamfer angle of the contact points were not the correct type. Imagine how scary that was for me. So, please be sure to get lugbolts with the correct chamfer angle. FYI I got mine originally from Boothe Design.

Check out the picture below. Look at the chrome lugnut on the left and you can see that the contact points are not even unlike the OEM black lugnuts on the right.

Chrome lugnuts

Black lugnuts

I think your car will look better with black lugnuts/bolts.

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Nov 9, 2007 4:38:49 AM

PandaMan: Senior; Loc: Canada , Vancouver; Posts: 503, Gallery; Registered on: Feb 1, 2006; Reply to: atomic80

Re: I think I've narrowed my After-Market Wheel Se

where do you get the black lugnuts?

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Nov 9, 2007 4:53:02 AM

atomic80: Rennteam Pro; Loc: Bellevue, WA USA , United States; Posts: 2596, Gallery; Registered on: Feb 9, 2006; Reply to: PandaMan

Re: I think I've narrowed my After-Market Wheel Se

Yep, the black lugnuts were originally used on the 993s. Thing is that if you wanted to use these then you'd have to get wheel studs like I did. It does make it easier to put wheels on/off the car.

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Nov 9, 2007 6:51:20 AM

andrea: Rennteam Master; Loc: Italy, Pordenone , Italy; Posts: 3569, Gallery; Registered on: Sep 24, 2003; Reply to: cannga

Re: I think I've narrowed my After-Market Wheel Se

Quote:
cannga said:
I don't know if it's the exact same wheel, but the RS Spyder wheel does RESEMBLE the BBS wheel the most (and so does the 997 GT2-class racing car).

If you "must" have this particular wheel, do check into TPMS and offset compatibility with your car.

Quote:
andrea said:
Nobody knows if BBS Forged Aluminum RE Monobloc (18" Dia) are the RS Spyder Wheels??

Thnaks!

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Nov 9, 2007 12:59:10 PM

STRADALE: Rennteam VIP; Loc: NY , United States; Posts: 11075, Gallery; Registered on: Mar 9, 2005; Reply to: cannga

Re: I think I've narrowed my After-Market Wheel Se

Quote:
cannga said:
You know about the titanium bolts right?

I remember being surprised at the weight saving; it was much more than expected, mainly because there are so many bolts. IIRC was 1-2 kg (???? not sure). This supposedly is the real thing--used in race cars (all about cutting unsprung weight), not just cosmetic, but whether you and I could feel the difference, I don't know.

But since we are all in the cuckoo's nest together... thought I would just mention it.

Quote:
STRADALE said:
Thanks so much Cann, Whoppsy, Jason. You're right! I thought it was just a difference in width but now get what you're saying. I'm going to keep stock sizes & tires then for sure. Saves me about $1600 worth of tires too. You know this place is so freakin helpful making the right decisions & just as important has saved me from making costly mistakes. Yes Jason the Champion RS171 is TPMS compatible & does not require spacers. They should look really cool. I got Chrome bolts too, the ones from the WERKS ad that has the dimples. It's all in the details imho... Wonder if there is a choice of valve stems? The ones on these pics that my guy at Champion sent look Chrome.

Where can I get the cuckoo titanium bolts? I had titanium bolts on my Challenge Stradale. They were really cool because if you look the bolt is reversed, it goes IN not out. Thanks for those threads Cann, I'll have to read them. Stayed home from work today, have some type of bug, feel crummy.

Jason - The Chrome Bolts I'm getting are directly from Champion (unless I get Titanium ones) are the ones they use all the time so I imagine they should work on the Champion wheels but will definitely ask about this because of your experience, thanks! Thank God you didn't get Hurt Jason.

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Nov 9, 2007 1:00:48 PM

STRADALE: Rennteam VIP; Loc: NY , United States; Posts: 11075, Gallery; Registered on: Mar 9, 2005; Reply to: STRADALE

Re: I think I've narrowed my After-Market Wheel Se

These are the dimpled Chrome Bolts.

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Nov 9, 2007 4:58:58 PM

cannga: Expert; Loc: Los Angeles's "twisties" :-) , United States; Posts: 1940, Gallery; Registered on: Feb 6, 2005; Reply to: STRADALE

Re: I think I've narrowed my After-Market Wheel Se

You are very welcome and hmmm... I kinda like those titanium bolts! Just the feeling that they are light weight quality stuffs MAKE them look good!
A person/dealer (?) from Rennworx posted in 6speedonline about them, about $700 for the set:
http://www.6speedonline.com/forums/showthread.php?t=46494

I don't know about current availability. I have the feeling you could get them from other places as well, and that they will get cheaper over time, but have no specific recommendation.

>>>have some type of bug, feel crummy.

I also do medicine on the side...

Get well.

Quote:
STRADALE said:
Where can I get the cuckoo titanium bolts? I had titanium bolts on my Challenge Stradale. They were really cool because if you look the bolt is reversed, it goes IN not out. Thanks for those threads Cann, I'll have to read them. Stayed home from work today, have some type of bug, feel crummy.

Jason - The Chrome Bolts I'm getting are directly from Champion (unless I get Titanium ones) are the ones they use all the time so I imagine they should work on the Champion wheels but will definitely ask about this because of your experience, thanks! Thank God you didn't get Hurt Jason.

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Nov 9, 2007 5:30:57 PM

Alex_997TT: Rennteam Master; Loc: Reading , United Kingdom; Posts: 3320, Gallery; Registered on: Nov 20, 2005; Reply to: cannga

Re: I think I've narrowed my After-Market Wheel Se

Anyone have weights for Champion 171s 8.5x19" and 11x19"?

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Nov 9, 2007 5:59:41 PM

cannga: Expert; Loc: Los Angeles's "twisties" :-) , United States; Posts: 1940, Gallery; Registered on: Feb 6, 2005; Reply to: Alex_997TT

Re: I think I've narrowed my After-Market Wheel Se

Alex,

Email Wheel Enhancement at info@wheelenhancement.com . Sometimes it takes them a day to answer but they will have the info for you.

Quote:
Alex_ said:
Anyone have weights for Champion 171s 8.5x19" and 11x19"?

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Nov 9, 2007 6:25:35 PM

Alex_997TT: Rennteam Master; Loc: Reading , United Kingdom; Posts: 3320, Gallery; Registered on: Nov 20, 2005; Reply to: cannga

Re: I think I've narrowed my After-Market Wheel Se

Already talking with them, just wondered if you guys already had to hand...

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Nov 9, 2007 6:48:54 PM

STRADALE: Rennteam VIP; Loc: NY , United States; Posts: 11075, Gallery; Registered on: Mar 9, 2005; Reply to: Alex_997TT

Re: I think I've narrowed my After-Market Wheel Se

Champion RS 171

Front - 8.5 x 19 - 20.17 lbs
Rear - 11.5 x 19 - 24.36 lbs

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Nov 9, 2007 7:08:03 PM

Alex_997TT: Rennteam Master; Loc: Reading , United Kingdom; Posts: 3320, Gallery; Registered on: Nov 20, 2005; Reply to: STRADALE

Re: I think I've narrowed my After-Market Wheel Se

Quote:
STRADALE said:
Champion RS 171

Front - 8.5 x 19 - 20.17 lbs
Rear - 11.5 x 19 - 24.36 lbs

Ta v much!!

So thats a saving of about 6kg over the OEM wheels. The RG5s actually save about 11.5kg.

Should also save on my shipping costs if I order from the US

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Nov 9, 2007 8:21:18 PM

trip: Expert; Loc: Bay Area California , United States; Posts: 1691, Gallery; Registered on: Jan 11, 2006; Reply to: Alex_997TT

Re: I think I've narrowed my After-Market Wheel Se

Thats actually a little dissapointing, I was expecting greater weight savings.

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Nov 9, 2007 8:40:33 PM

Alex_997TT: Rennteam Master; Loc: Reading , United Kingdom; Posts: 3320, Gallery; Registered on: Nov 20, 2005; Reply to: trip

Re: I think I've narrowed my After-Market Wheel Se

RG5's (the ones Cargraphic distribute for Champion and are TUV approved):

Front - 8.5x19 - 18 lbs 2oz
Rear - 11x19 - 19 lbs 13oz.

Much lighter (and cheaper) than than the HREs or the 171s.

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Nov 9, 2007 11:00:43 PM

STRADALE: Rennteam VIP; Loc: NY , United States; Posts: 11075, Gallery; Registered on: Mar 9, 2005; Reply to: Alex_997TT

Re: I think I've narrowed my After-Market Wheel Se

Quote:
Alex_ said:
RG5's (the ones Cargraphic distribute for Champion and are TUV approved):

Front - 8.5x19 - 18 lbs 2oz
Rear - 11x19 - 19 lbs 13oz.

Much lighter (and cheaper) than than the HREs or the 171s.

Be careful if you're considering the RG5's. If you have roads anything like I have here it's not a wise choice. I've personally been in a Turbo that bent the lip on an average pot hole & have seen 2 other cars w/ the same problem. Down in Florida not as big a deal but not a good wheel for NY roads. Even Champion has advised the 171 is a much stronger wheel. The RG5 is cheaper because it's old technology. It's also pretty bland if you ask me there are much better looking spoke designs. The HRE & the 171 are more expensive but they're both also much better wheels than the RG5. Both lighter than stock without sacrificing too much strength. (from what I've heard & learned recently anyway)

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Nov 9, 2007 11:07:53 PM

ARMD009: Pilot; Loc: FL, united states; Posts: 358, Gallery; Registered on: Jan 12, 2005; Reply to: STRADALE

Re: I think I've narrowed my After-Market Wheel Se

RG5 Monolites, send me a PM with your email
I do not know how to post pic here... LOL

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Nov 9, 2007 11:13:51 PM

PandaMan: Senior; Loc: Canada , Vancouver; Posts: 503, Gallery; Registered on: Feb 1, 2006; Reply to: ARMD009

Re: I think I've narrowed my After-Market Wheel Se

ARM are you selling them?

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Nov 9, 2007 11:13:51 PM

PandaMan: Senior; Loc: Canada , Vancouver; Posts: 503, Gallery; Registered on: Feb 1, 2006; Reply to: ARMD009

Re: I think I've narrowed my After-Market Wheel Se

ARM are you selling them?

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Nov 9, 2007 11:16:07 PM

ARMD009: Pilot; Loc: FL, united states; Posts: 358, Gallery; Registered on: Jan 12, 2005; Reply to: PandaMan

Re: I think I've narrowed my After-Market Wheel Se

no, just wanted to show him the pics.
same as the white 997 turbo above.

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Nov 9, 2007 11:22:59 PM

atomic80: Rennteam Pro; Loc: Bellevue, WA USA , United States; Posts: 2596, Gallery; Registered on: Feb 9, 2006; Reply to: ARMD009

Re: I think I've narrowed my After-Market Wheel Se

Originally I was all set to get the RG5s until I saw them in person. To be frank, I wasn't impressed with these wheels because they did a bit bland. It also didn't look like the chrome lips didn't hold up too well to the elements with lots of scratches shown. My guess is that you'd have to spend extra time and care to keep those looking good.

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Nov 9, 2007 11:31:47 PM

STRADALE: Rennteam VIP; Loc: NY , United States; Posts: 11075, Gallery; Registered on: Mar 9, 2005; Reply to: Alex_997TT

Re: I think I've narrowed my After-Market Wheel Se

Quote:
Alex_ said:
Quote:
STRADALE said:
Champion RS 171

Front - 8.5 x 19 - 20.17 lbs
Rear - 11.5 x 19 - 24.36 lbs

Ta v much!!

So thats a saving of about 6kg over the OEM wheels. The RG5s actually save about 11.5kg.

Should also save on my shipping costs if I order from the US

Actually the 171's are 16lbs lighter than stock. But if you're really concerned about shipping costs order the Magnesium's I heard they're so light they float in the mail.

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Nov 9, 2007 11:43:42 PM

STRADALE: Rennteam VIP; Loc: NY , United States; Posts: 11075, Gallery; Registered on: Mar 9, 2005; Reply to: ARMD009

Re: I think I've narrowed my After-Market Wheel Se

Quote:
ARMD009 said:
RG5 Monolites, send me a PM with your email
I do not know how to post pic here... LOL

Don't use the quick reply at the bottom, try replying to my msg. Then after you hit "Continue" you will see "Browse" hit "Browse" and you should be able to pick the picture you want to post.

I like the RG5 & I like the other older Champion wheels but they've 'been around the block', I remember considering the RG5 for my 996 Turbo years ago. Probably my favorite in that style is the RS98. But even that wheel blings too much for me.

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Nov 9, 2007 11:47:59 PM

STRADALE: Rennteam VIP; Loc: NY , United States; Posts: 11075, Gallery; Registered on: Mar 9, 2005; Reply to: STRADALE

Re: I think I've narrowed my After-Market Wheel Se

It looks less bling painted black imo but if you're going to do that might as well have a much more modern spoke design like the HRE's or the 171's, even Cargraphic etc. has more aggressive spoke designs, this one comes off flat, no?

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Nov 10, 2007 12:30:20 AM

ARMD009: Pilot; Loc: FL, united states; Posts: 358, Gallery; Registered on: Jan 12, 2005; Reply to: STRADALE

Re: I think I've narrowed my After-Market Wheel Se

no good , they are the same as on the white 997 above
not bling at all, but deep lip for sure, If you do not like that you will not like these wheels, however the point I was tring to make is :you will like the champion wheels, any one , not just my style (Jason)
good luck, your car will be AWESOME

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Nov 10, 2007 12:31:15 AM

STRADALE: Rennteam VIP; Loc: NY , United States; Posts: 11075, Gallery; Registered on: Mar 9, 2005; Reply to: atomic80

Re: I think I've narrowed my After-Market Wheel Se

Quote:
atomic80 said:
Originally I was all set to get the RG5s until I saw them in person. To be frank, I wasn't impressed with these wheels because they did a bit bland. It also didn't look like the chrome lips didn't hold up too well to the elements with lots of scratches shown. My guess is that you'd have to spend extra time and care to keep those looking good.

The RG5 spoke design just isn't interesting at all. Maybe if they somehow put this design w/ a lip it would be more modern.

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Nov 10, 2007 11:46:53 AM

Turbo4ever: Senior; Loc: HK , Hong Kong; Posts: 723, Gallery; Registered on: Sep 13, 2007; Reply to: jeffbco

Re: I think I've narrowed my After-Market Wheel Se

Quote:
jeffbco said:
Obviously, I'm a fan of black on black.

lucky there is a bk turbo with black rs wheels here....

the rs wheels with turbo is not my cup of tea

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Nov 10, 2007 12:31:44 PM

Alex_997TT: Rennteam Master; Loc: Reading , United Kingdom; Posts: 3320, Gallery; Registered on: Nov 20, 2005; Reply to: Turbo4ever

Re: I think I've narrowed my After-Market Wheel Se

New Techart wheels announced:

http://www.techart.de/news_2007/TA_FormulaIII_forged.pdf

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Nov 10, 2007 3:08:44 PM

atomic80: Rennteam Pro; Loc: Bellevue, WA USA , United States; Posts: 2596, Gallery; Registered on: Feb 9, 2006; Reply to: Alex_997TT

Re: I think I've narrowed my After-Market Wheel Se

I've known about those Techart wheels for a while now. Not sure if I like them. Seems too "artsy" for the Turbo. I guess it'd have to grow on me.

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