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Old 04-12-11, 08:00 AM   #1
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Diamond Racing wheels

I'm looking at a set of diamond racing steelies due to their cost, 4x110 bolt pattern, and their wide range of offsets, widths, and heights. They arnt pretty and they will make my rx7 look like a NASCAR but that's alright. My issue is weight. Their website lists them as low as 16lbs but I constantly hear people saying they are heavy with no numbers to back it up. Right now I believe our stock wheels and tires are around 26lbs? I'd like to be around 20lbs per corner.
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Old 04-12-11, 08:03 AM   #2
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The car in question
Click the image to open in full size.
And an e30 with DRS wheels. He claims they are super heavy.
Click the image to open in full size.
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Old 04-12-11, 08:49 AM   #3
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For a steel wheel, they are very light. In fact, I believe that they are lighter than a lot of alloy wheels. I haven't actually weighed mine though...



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Old 04-12-11, 09:10 AM   #4
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here is a link to their site, I believe those are two first gen Rx7s in their pic!
http://www.diamondracingwheels.com/challenger.html
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Old 04-12-11, 10:39 AM   #5
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The stock waffles and I think the cross wheels each weight about 12.5 lbs. Pretty
light and then add on the tire weight. The tires will be about 16 or 17 lbs.

The stock size sumitomo weighs 16 lbs. So thats 28.5 lbs. Not sure the steel wheel
will be any lighter than the stock wheel. It will come in wider widths than 5.5 inches
tho, so if thats what you need ...
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Old 04-12-11, 09:11 PM   #6
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i don't remember exactly how much, but my + wheels with tires on them i think were about 22 maybe 25 pounds.
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Old 04-18-11, 09:19 PM   #7
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Click the image to open in full size.

Click the image to open in full size.

I love mine, just if u get chrome dont use chrome wheel cleaner lol i did now mine are that grey powdercoat color lol i still love them though
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Old 04-19-11, 08:53 AM   #8
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what size/offset are those?
is there any way you could get the weight of them because it looks really good. I like the look a lot. I am in the middle of purchasing either 13" tires for the stock wheels, or getting new wheels.

Kentetsu, I see you autocross your car frequently and also daily drive it. Have you ever weighed it? I just weighed my car with full interior, except spare, jack, and rats nest. It weighed in at 2,360lbs with maybe 2 gallons of gas and NO driver. Obviously in racing, the less weight the better to a certain degree. Rotational mass is a big killer so I want to choose my wheels wisely. I have a second car so I don't need to DD this but it's hard not too... What am I looking at as far as wheel options go?

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Old 04-19-11, 09:24 AM   #9
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Quote:
Originally Posted by stofficer1226 View Post
what size/offset are those?
is there any way you could get the weight of them because it looks really good. I like the look a lot. I am in the middle of purchasing either 13" tires for the stock wheels, or getting new wheels.

Kentetsu, I see you autocross your car frequently and also daily drive it. Have you ever weighed it? I just weighed my car with full interior, except spare, jack, and rats nest. It weighed in at 2,360lbs with maybe 2 gallons of gas and NO driver. Obviously in racing, the less weight the better to a certain degree. Rotational mass is a big killer so I want to choose my wheels wisely. I have a second car so I don't need to DD this but it's hard not too... What am I looking at as far as wheel options go?
I weighed my FB last summer at US-131 dragway while attending an auto-cross there. Car, no spare, jack, etc. and 1/2 tank of gas: 2350 w/o me in it. I have a set of 15x7 Enkei 92's and some 205/50R15 Potenza RE-11's...

I bought a second-hand (but brand new) set of DR wheels a few years back. 15" w/ 4.5" backspace. They were quite light (under 20 pounds).
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Old 04-19-11, 11:20 AM   #10
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Was the under 20lbs with or without tires? Im looking at maybe going with a 15x8 wheel and enough poke for fender flares.
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Old 04-19-11, 12:20 PM   #11
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Was the under 20lbs with or without tires? Im looking at maybe going with a 15x8 wheel and enough poke for fender flares.
Im runnning 15x7 with 4 inch bs, lots of camber and im on coilovers
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Old 04-19-11, 12:43 PM   #12
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Im runnning 15x7 with 4 inch bs, lots of camber and im on coilovers
Could you post a picture of your car with the wheels? I'm assuming you're running DR wheels?
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Old 04-19-11, 12:56 PM   #13
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Could you post a picture of your car with the wheels? I'm assuming you're running DR wheels?
above lol silver 84 with gunmetal wheels
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Old 04-19-11, 01:08 PM   #14
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I weighed my car a year or two ago, and it was either 2280 or 2380 with a half tank of gas and my *** in the seat. I'll have to weigh her again this year since I can't remember which it was.

Here's a pic of my car with 13x8 wheels, and I believe 4" backspace. Just to give you an idea of how much they stick out past the fender. I like it just fine without flares, all the kids say it looks like a hotwheels car. lol.
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Old 04-19-11, 04:18 PM   #15
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How much $ are they per wheel? Don't you have to special order them?
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Old 04-19-11, 06:09 PM   #16
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my car weighs 2100 no driver low fuel, they are 400 for 4 shipped, or were when i got mine last year
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Old 04-19-11, 08:13 PM   #17
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They're light for steel wheels but a lot heavier than an alloy wheel of similar size.

On the other hand, try to find 13x7 or 13x9 alloy wheels for under $100 a pop...
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Old 04-19-11, 11:08 PM   #18
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Alright I think I'll end up giving the DR wheels a try. Right now I have the stock '85 4 spoke 13" wheels wrapped in bridgestone potenza re900 tires. I can't seem to find any info on them, but how do they compare to the summitos that everyone is buying for the 13"?
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Old 04-19-11, 11:24 PM   #19
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Remember they are racing wheels and not intended to be used on the street as they are not as strong as a wheel designed to resist potholes, etc.

Photobucket is currently down, but here is a picture of mine at Pocono (car is currently in the paint shop to fix those paint issues)
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Old 04-20-11, 10:05 AM   #20
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Car looks good! Do you have an idea how much each wheel weighs? with or without tires. Their website claims 16lbs but a local friend (the e30 above) ordered a set and they felt like 30lbs per wheel.
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Old 04-20-11, 08:12 PM   #21
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Car looks good! Do you have an idea how much each wheel weighs? with or without tires. Their website claims 16lbs but a local friend (the e30 above) ordered a set and they felt like 30lbs per wheel.
I'm running 16X8. I weighed them when they came in but I don't remember exactly. I think they were areound 21lbs each.
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Old 04-21-11, 11:52 AM   #22
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I think my 13x8s are something like 13 - 15 pounds.

You will need a different type of lugnut to run them as well, although the stockers can work in a pinch. Their website details the ideal type of lugnut.
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Old 04-24-11, 07:50 PM   #23
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I had zero problems running them on the street. I bought them from an ITA racer, and sold them to someone here who was going to use them on the street. I don't think he had any wheel related problems either.
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Old 01-14-13, 05:08 PM   #24
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I really love diamond wheels but what do you think of these Rota's on my car

P1010399 by adamprovo1, on Flickr
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Old 01-16-13, 10:28 AM   #25
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^ Good choice. They run a little bit more cash, but nice to look at. I had a set of charcoal 15x8's until I swapped to 5-lug.
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Old 01-16-13, 10:28 AM
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