CCW's on my red GT3
04-28-2008, 12:13 PM
#19
Race Director
I have the same wheels on my 997S and they are awesome...see avitar...anyway I was thinking about painting them a satin black too. Did you do this yourself or did a autobody shop paint them?
04-29-2008, 02:57 AM
#22
Drifting
Thread Starter
No rubbing issues at all. I put the 19's back on today for street driving and looked for any evidence of rubbing but could not see anything. The tires held up very well considering the abuse they took and the amount of track time they saw.
For reference, my car is lowered ~12mm all around and has the track setup as per the owners manual.
The only caveat that should be noted, and I haven't seen anybody mention this before, is that the overall diameter of the tires is different from stock. The differences are as follows:
Front:
Stock MPSC = 25.5"
Toyo R888 = 25.1"
Rear:
Stock MPSC = 26.3"
Toyo R888 = 25.5"
This makes the front ride height come down by ((25.5-25.1)/2) = 0.2" and the rear by ((26.3-25.5)/2) = 0.4". While a quarter inch is not a big deal, nearly a half inch is quite a big deal with ride height, especially for those who have cornerweighted, etc.
There are advantages however to the small diameters that allow a lower center of gravity without sacrificing your street setup (assuming you swap back to the 19's) and a tiny bit better gearing with the smaller diameter rear tires.
Just some things to keep in mind when making your decision.
For reference, my car is lowered ~12mm all around and has the track setup as per the owners manual.
The only caveat that should be noted, and I haven't seen anybody mention this before, is that the overall diameter of the tires is different from stock. The differences are as follows:
Front:
Stock MPSC = 25.5"
Toyo R888 = 25.1"
Rear:
Stock MPSC = 26.3"
Toyo R888 = 25.5"
This makes the front ride height come down by ((25.5-25.1)/2) = 0.2" and the rear by ((26.3-25.5)/2) = 0.4". While a quarter inch is not a big deal, nearly a half inch is quite a big deal with ride height, especially for those who have cornerweighted, etc.
There are advantages however to the small diameters that allow a lower center of gravity without sacrificing your street setup (assuming you swap back to the 19's) and a tiny bit better gearing with the smaller diameter rear tires.
Just some things to keep in mind when making your decision.
04-29-2008, 05:36 AM
#23
Rennlist Member
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No rubbing issues at all. I put the 19's back on today for street driving and looked for any evidence of rubbing but could not see anything. The tires held up very well considering the abuse they took and the amount of track time they saw.
For reference, my car is lowered ~12mm all around and has the track setup as per the owners manual.
The only caveat that should be noted, and I haven't seen anybody mention this before, is that the overall diameter of the tires is different from stock. The differences are as follows:
Front:
Stock MPSC = 25.5"
Toyo R888 = 25.1"
Rear:
Stock MPSC = 26.3"
Toyo R888 = 25.5"
This makes the front ride height come down by ((25.5-25.1)/2) = 0.2" and the rear by ((26.3-25.5)/2) = 0.4". While a quarter inch is not a big deal, nearly a half inch is quite a big deal with ride height, especially for those who have cornerweighted, etc.
There are advantages however to the small diameters that allow a lower center of gravity without sacrificing your street setup (assuming you swap back to the 19's) and a tiny bit better gearing with the smaller diameter rear tires.
Just some things to keep in mind when making your decision.
For reference, my car is lowered ~12mm all around and has the track setup as per the owners manual.
The only caveat that should be noted, and I haven't seen anybody mention this before, is that the overall diameter of the tires is different from stock. The differences are as follows:
Front:
Stock MPSC = 25.5"
Toyo R888 = 25.1"
Rear:
Stock MPSC = 26.3"
Toyo R888 = 25.5"
This makes the front ride height come down by ((25.5-25.1)/2) = 0.2" and the rear by ((26.3-25.5)/2) = 0.4". While a quarter inch is not a big deal, nearly a half inch is quite a big deal with ride height, especially for those who have cornerweighted, etc.
There are advantages however to the small diameters that allow a lower center of gravity without sacrificing your street setup (assuming you swap back to the 19's) and a tiny bit better gearing with the smaller diameter rear tires.
Just some things to keep in mind when making your decision.
Thanks for the great info, I'm ordering my R888 tomorrow!
04-29-2008, 10:52 AM
#24
Rennlist Member
I've liked mine on the track, they stick well, are predictable if quiet at the limits
This setup does move more tire to the front (.7 in) - see stats below
rim size diameter width weight
18" 235/40 MPSC 25.4 9.5 22
18" 295/30 MPSC 25.2 12.1 25
18" 255/35 R888 25.1 10.2 26
18" 315/30 R888 25.5 12.5 30
19" 235/35 OEM 25.5 9.5 20
19" 305/30 OEM 26.3 12.3 27
They do lower the car a bit and the ride is a bit choppier and noisier on the street, but keep in mind I normally run 305/235 Pzero Rossos around town on OEM 19s
This setup does move more tire to the front (.7 in) - see stats below
rim size diameter width weight
18" 235/40 MPSC 25.4 9.5 22
18" 295/30 MPSC 25.2 12.1 25
18" 255/35 R888 25.1 10.2 26
18" 315/30 R888 25.5 12.5 30
19" 235/35 OEM 25.5 9.5 20
19" 305/30 OEM 26.3 12.3 27
They do lower the car a bit and the ride is a bit choppier and noisier on the street, but keep in mind I normally run 305/235 Pzero Rossos around town on OEM 19s
05-01-2008, 01:37 AM
#25
Banned
I have the exact same set-up except that my CCW's are entirely powder-coated in Riviera Blue and they have my custom modified GT3 center caps on them.
I love the combo and the car is now nicely balanced.
My only complaint is the weight of the Toyo's. The weight that you save on the wheels is made up for on the tires.
I came from the Corsa's which are 21 lbs front (1 lb more than the MPSC's) and 26 lbs in the rear (1 lb less than the MPSC's).
So my front CCW's weigh about 4 lbs less than the stock 19's, but the tires weigh 4 lbs more! So it is a wash.
On the rear, my CCW's weigh about 5 lbs less than stock, but the tires again weigh 4 lbs more. So I save a whole 1 lb per wheel/tire combo in the rear; whoop de doo!
Oh, and did I mention that powdercoating huge wheels does increase their weight noticabley, at least for the scale? My above weights are pre-powdercoating. Afterwards, the fronts went up by about .4 lb each in weight and the rears about .6 lbs each in weight.
Buuuuuuuuuuuuuuut, I like the handling of the car better now, and the tires are significantly less expensive.
I still think the best combo is to go with the 19" Champion RG5's with the stock tires, that will give you some serious weight savings. That should give you about 6 lbs per wheel in the front (tires are the same now) and about 7 lbs in the rear for a total of 26 lbs unsprung rotational mass weight savings! Add some brembo 2 piece rotors and light-weight calipers, and I think you save another 30+ lbs over the base iron rotor brakes. Approaching 60 lbs total is very significant. But now you are talking about $20K extra if you do it at your next tire change, and mine is only about $1,500 extra if you get used CCW's with R888's.
I love the combo and the car is now nicely balanced.
My only complaint is the weight of the Toyo's. The weight that you save on the wheels is made up for on the tires.
I came from the Corsa's which are 21 lbs front (1 lb more than the MPSC's) and 26 lbs in the rear (1 lb less than the MPSC's).
So my front CCW's weigh about 4 lbs less than the stock 19's, but the tires weigh 4 lbs more! So it is a wash.
On the rear, my CCW's weigh about 5 lbs less than stock, but the tires again weigh 4 lbs more. So I save a whole 1 lb per wheel/tire combo in the rear; whoop de doo!
Oh, and did I mention that powdercoating huge wheels does increase their weight noticabley, at least for the scale? My above weights are pre-powdercoating. Afterwards, the fronts went up by about .4 lb each in weight and the rears about .6 lbs each in weight.
Buuuuuuuuuuuuuuut, I like the handling of the car better now, and the tires are significantly less expensive.
I still think the best combo is to go with the 19" Champion RG5's with the stock tires, that will give you some serious weight savings. That should give you about 6 lbs per wheel in the front (tires are the same now) and about 7 lbs in the rear for a total of 26 lbs unsprung rotational mass weight savings! Add some brembo 2 piece rotors and light-weight calipers, and I think you save another 30+ lbs over the base iron rotor brakes. Approaching 60 lbs total is very significant. But now you are talking about $20K extra if you do it at your next tire change, and mine is only about $1,500 extra if you get used CCW's with R888's.
05-01-2008, 04:46 AM
#26
05-01-2008, 02:05 PM
#27
Banned
My local shop did all 4 wheels for about $280.00 including taxes!
They also did two coatings of powdercoat. 1st step is the Riviera Blue, and then they actually use a clear powdercoat (just like a clearcoat on paint) and bake them again. They did this because the other Riviera blue parts on my car are painted gloss (mirrors and wing tips), so they wanted the wheels to match.
I like this because they have a very protective coating on them and simply look perfect!
I will take some pics right now and post them in a few minutes.
Stephen
Last edited by 340Elise; 05-01-2008 at 04:23 PM.
05-01-2008, 02:27 PM
#28
No, John cringes at the thought of doing something like that!
I my local show do it and they did all 4 wheels for about $280.00 including taxes!
They also did two powdercoats. 1st step is the Riviera Blue, and then they actually use a clear powdercoat (just like a clearcoat on paint) and bake them again. They did this because the other Riviera blue parts on my car are painted gloss (mirrors and wing tips), so they wanted the wheels to match.
I like this because they have a very protective coating on them and simply look perfect!
I will take some pics right now and post them in a few minutes.
Stephen
I my local show do it and they did all 4 wheels for about $280.00 including taxes!
They also did two powdercoats. 1st step is the Riviera Blue, and then they actually use a clear powdercoat (just like a clearcoat on paint) and bake them again. They did this because the other Riviera blue parts on my car are painted gloss (mirrors and wing tips), so they wanted the wheels to match.
I like this because they have a very protective coating on them and simply look perfect!
I will take some pics right now and post them in a few minutes.
Stephen
Ty so much
05-01-2008, 10:26 PM
#29
Banned
I just want to say that your GR GT3 with those wheels in black looks awesome! It is simple, yet stunning. I promised some pics of my CCW wheels in Riviera Blue, so here they are. If anyone wants to know how I did the center caps, I would be more than happy to help you out. I would even modify them for you as long as I don't have more than a few guys who want this done.
Enjoy (I hope) -
Enjoy (I hope) -