| Author | Message | ||
| Mule (Mule)
Junior Member Username: Mule Post Number: 149 Registered: 6-2003 |
Thanks Omar, Hope they look that good on MY car. I will post pictures in the Showroom section when they are on. It will be two or three weeks, though. I haven't bought the tires yet. | ||
| Omar (Auraraptor)
Intermediate Member Username: Auraraptor Post Number: 1133 Registered: 9-2002 |
Very nice rims I must say. | ||
| Mule (Mule)
Junior Member Username: Mule Post Number: 143 Registered: 6-2003 |
V.Z. I am getting similar wheels, but more of a GTO style. They are Compomotive brand, 17x8 and 17x9. Should look good on a black car, (the picture is not my car, but the same wheels).   | ||
| V.Z. (Ama328)
Member Username: Ama328 Post Number: 285 Registered: 11-2002 |
Mule, any chance the 17" wheels you're going to have the same look as the stock 16" wheels? Or, are you going to an entirely different look? I'd like to go to 17s, but like the stock wheels design... have never come across 17s like this, so have just stayed on the stock wheels. | ||
| Omar (Auraraptor)
Intermediate Member Username: Auraraptor Post Number: 1129 Registered: 9-2002 |
Thanks for the help guys, I agree, I will keep all the orginal parts and only do that what can be reveresed easily to the car. | ||
| Mule (Mule)
Junior Member Username: Mule Post Number: 136 Registered: 6-2003 |
Omar, I agree with Dave328GTB about trying to find someone who has made the same change. I am following pretty closly what he did, and I am lucky enough that he lives close enough and was nice enough to let me put his wheels on my car. See the tech thread in archives on "max rear tire for 328". I know you are going with 360 wheels, which is unique and maybe not done before, so there may not be any lessons learned from someone else. As far as car value, I am keeping my old wheels and tires and can return it to original in an hour. Be careful before you change anything too big, that you can't reverse. New wheels and spacers shouldn't be permanent. I agree with asking as much as possible and leaning the different views from other people who have changed thier 328's. Be patient, and the effort will be rewarded. As the caprenter says, "Measure twice, cut once". | ||
| Dave328GTB (Hardtop)
Member Username: Hardtop Post Number: 699 Registered: 1-2002 |
Omar, One word of caution.... Any mods you make will, in fact, devalue the car. Also, you may not like the way it drives when it's done. If you can find someone who has already done the mod, that would be great. Dave | ||
| Gary Reed (Gary_reed)
Junior Member Username: Gary_reed Post Number: 237 Registered: 2-2002 |
Here's a link to a very helpful wheel/tire size calculator that I've used before. It even shows the speedometer figure differences. http://www.csgnetwork.com/tireinfo4calc.html | ||
| Mule (Mule)
Junior Member Username: Mule Post Number: 134 Registered: 6-2003 |
Omar, I do not have any spacers. My wheels were made to go on an ABS 328, so the offset is correct for the width. Can you put a 265 tire on a 10 inch wheel? Go back to the webpage and look for a column of approved rim widths for the tire you want. Should say something like 8.5-10.0, meaning anything between 8.5 inches and 10 inches wide. By the way, Bridgstone says 9.0 to 10.5 for a 265 tire, so it will fit on that wide a rim. Seems the only issue is if the inner wheel is far enough away from the shock/spring. I have no opinion on spacers, but that is where they may be needed. | ||
| Omar (Auraraptor)
Intermediate Member Username: Auraraptor Post Number: 1126 Registered: 9-2002 |
Fronts: 215/40-18 (86) (made by Brigdestone) Rears: 275/30-18 (82.5) (doesn't not exist) or 265/35 (92.75) (made by Brigdestone) The number in the () should be 87.35 ideally. Thus the difference is 5.4 for the second rear tire. Can I put a 265 tire on a 10 inch rim? Would it even fit properly? Would the 5.4 difference be too high and be negetive? (again, I will worry about the spring arrangement later...thats another thread for another day) Mule, do you have spacers for the fronts? When I install the rims, Paul Hill will make me custom spacers that will account for the natural offset of the 360 rim and correct it so that it matches the Stock 328's offset. Thus, if a 18x7.5 will fit with no spacers (and no rub issues), then a 360 rim that has been compensated for should in theroy work also. | ||
| Mule (Mule)
Junior Member Username: Mule Post Number: 133 Registered: 6-2003 |
Omar, Go to Goodyear or Bridgestone website and look at tire size specifics. It will list the tire sizes, approved wheel width, and height/width. Find the 18 inch tire that is closest in height to the original 16 inch tire. Larger wheel diameter, smaller profile. Example - I am switching from 16 to 17 inch wheels. Rear tires (225/50R16) are 24.7 inches tall. New tire (255/40R17) is 25 inches tall. 0.3 inch difference in height, will work. Front tires (205/55R16) are also 24.7 inches tall. New tire (225/45R17) is 24.8 inches tall. 0.1 inch difference, will work. You know from previous posts that a max 225 width will work on the front and a max 255 on the back (dependent on stock or proper wheel offset). My new wheels and Dave328GTB's are 17x8 front and 17x9 rear. 17x10 in the rear - I dont know. The shock/spring in the rear is the limiting point. Depends on the offset of that 10 inch wheel and how far it moves the wheel out from the shock/spring. All sizes (height and width) are listed on any tire company website. | ||
| Omar (Auraraptor)
Intermediate Member Username: Auraraptor Post Number: 1125 Registered: 9-2002 |
x10 (the 360 rears use a 275/40/18). I was anticipating requiring mods(new rear spring and perhaps shocks?)..but right now I want to just get all the needed parts together. | ||
| Dave328GTB (Hardtop)
Member Username: Hardtop Post Number: 698 Registered: 1-2002 |
Omar, It is easier to figure in mm. The stock wheel height (diameter) is 632 mm. With 17 inch wheels, you need sidewalls app 100 mm. With 18 inch you need roughly 87.5 mm to match stock heights. Here are some sample sizes, some of which may not exist, for 18 inch wheels: 225/40 = 90 mm 215/40 = 86 mm 245/35 = 86 mm 255/35 = 89 mm You can't use 275's on the rear without mods. 255's barely fit. I would go with the 215/245 combo or 225/255 combo. How wide are the rear wheels? Dave | ||
| Omar (Auraraptor)
Intermediate Member Username: Auraraptor Post Number: 1124 Registered: 9-2002 |
Thanks Dave, he suggested 35 series...but was wondering how it would effect my speedo/OD etc if my overall wheel size was changed (like this) (my overall circum. will be larger now.) And the rears are even worse by the way....ideally I would need to run a 275/22-18!!(or 265/23-18) | ||
| dave handa (Davehanda)
Intermediate Member Username: Davehanda Post Number: 2120 Registered: 5-2001 |
Email Paul Sloan...I think he has those rims on his 308 QV, the same sizes he is using should apply to you as well. | ||
| Omar (Auraraptor)
Intermediate Member Username: Auraraptor Post Number: 1123 Registered: 9-2002 |
Attempt two: OEM front: (205*.55)/10/2.54+16 = 20.43897 Thus needed front: (20.43897-18)*2.54*10/215=.2881 umm thats a werid size...if I use 210 series tires.. (20.43897-18)*2.54*10/210=.295 that works..I guess I need 210/30-18 tires for the fronts then. Where could you possibly get something like this?? Ok then whats the problem with using 215/35-18s? They are best I can do. | ||
| Omar (Auraraptor)
Intermediate Member Username: Auraraptor Post Number: 1122 Registered: 9-2002 |
Wait a minute...I completely messup my calculations....ok I admit I have no clue what i need. | ||
| Omar (Auraraptor)
Intermediate Member Username: Auraraptor Post Number: 1121 Registered: 9-2002 |
I just bought a set of 360 rims for my car. They came with the stock 360 rubber (215/45/18 bridgestones in the front with 275/40/18 in the rear) According to tirerack, OEM for a 328 is 205/55-16(front) and 225/50/16(rear). So for sidewall(?) height I would have to subract 5 for every additional inch...thus 55-10=45(front) and 50-10=40(rear). this means that they are indeed the same overal height as my 328's. No way that these will work...at least I thought that...but I think the math works out. But what should I get so that they will work? (if someone knows better than me) Can I use the OEm 360 rubber? Also, any 328er around with 7.5 rims in the front? Did you need spacers? With Paul Hill's help, I can correct the offset so that it just about matches the 328..but am not sure if I can run a 7.5 wide rim under there with a 215 tire. The rears are even more complicated to think about...I will leave that for another thread. Thanks all. |