Powdered RacingHarts
#1
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Well, same dude who sold me the blue NB Auto also hooked me up with a set of 17" RacingHarts off his MazdaSpeed (FREE!!
) They were a silver with some rash, but took them to a local guy and had him powdercoat them Titanium, slight rough texture. IMHO, they turned out great.
Emilio also clued me in as why NOT to PC alloy rims due to annealing factors making them weak - I had no clue and luckily I did not do it on my 6uls - doubtful these will see anything but street pavement.
Just 1 of the set - in shade and in sunlight...
These will go on the NB and it will be painted a titanium/black combo - tsatefully of course![wink](https://www.miataturbo.net/images/smilies/wink.gif)
![](https://www.miataturbo.net/attachments/wheels-tires-78/58719d1351627598-powdered-racingharts-img_20121030_145754.jpg)
![eek5](https://www.miataturbo.net/images/smilies/eek5.gif)
Emilio also clued me in as why NOT to PC alloy rims due to annealing factors making them weak - I had no clue and luckily I did not do it on my 6uls - doubtful these will see anything but street pavement.
Just 1 of the set - in shade and in sunlight...
These will go on the NB and it will be painted a titanium/black combo - tsatefully of course
![wink](https://www.miataturbo.net/images/smilies/wink.gif)
![](https://www.miataturbo.net/attachments/wheels-tires-78/58719d1351627598-powdered-racingharts-img_20121030_145754.jpg)
![](https://www.miataturbo.net/attachments/wheels-tires-78/58720d1351627598-powdered-racingharts-img_20121030_145829.jpg)
#6
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Horrible weight - horrible. I can't wait to rock 'em ![](https://www.miataturbo.net/images/smilies/smile.gif)
He also gave me the msm's suspension too - no **** sucking - just a reach around.
Its cost me $50/rim.
On a side note - the daily is more for looks/fun over funstionality - that's the job of the track car. I just wanna be like Doppelganger.
![](https://www.miataturbo.net/images/smilies/smile.gif)
He also gave me the msm's suspension too - no **** sucking - just a reach around.
Its cost me $50/rim.
On a side note - the daily is more for looks/fun over funstionality - that's the job of the track car. I just wanna be like Doppelganger.
#8
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Unless you don't care about comfort?
I'm not trying to bum you out about em, just warn you that it might not be a bad idea to ditch them while they're all pretty. I had a set of 17's on my 1st miata when I just got it....Took em off after just 1 week.
#20
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I see differing views on PCing alloy rims - guess it depends on what kinda of material it's composed of... I wouldn't do it with rims that would ever see track/autox time though.
A little thread from m.net [NB] Powdercoating weakens wheels? - MX-5 Miata Forum not that this makes his words 100% accurate...
A little thread from m.net [NB] Powdercoating weakens wheels? - MX-5 Miata Forum not that this makes his words 100% accurate...
Many of the cast aluminum wheels use an alloy that is pretty much in line with a 6061 type composition (reasonably corrosion resistant) and for those in a -T6 type condition, I would expect the effects to be minimal. If we look at the strength at temperature and at the residual strength loss tables following exposure in the MIL-HDBK-5/MMPDS for 6061-T6 following exposure at 400° F for , there is a knockdown in ultimate tensile strength (Ftu) of about 4% and pretty much no knock down in tensile yield strength (Fty). Flipping over a couple of pages to the effect on percent elongation, again pretty much no impact which would tie in with the information regarding Fty.
Even if we bump the exposure up to ten hours at 400° F, the residual strength knock downs are still in single digits for that material. I realize that we are talking wrought product vs cast product and there are some behavior differences but in general, they follow the same trends. I know that there are some wheels out there made from casting alloys that instead of being solution heat treated and aged (the -T6 above for example) are solution heat treated and overaged as part of the production process (generally done to increase corrosion resistance but at the expense of strength) and I would expect to see more problems with those if run through an additional heat cycle.
Even if we bump the exposure up to ten hours at 400° F, the residual strength knock downs are still in single digits for that material. I realize that we are talking wrought product vs cast product and there are some behavior differences but in general, they follow the same trends. I know that there are some wheels out there made from casting alloys that instead of being solution heat treated and aged (the -T6 above for example) are solution heat treated and overaged as part of the production process (generally done to increase corrosion resistance but at the expense of strength) and I would expect to see more problems with those if run through an additional heat cycle.