Doran Racing NISMO RC suspension parts

SPOHN · 03-11-2013, 06:10 PM

Rear camber arms snapped. Damn. Something is wrong with this picture. Either SPC or SPL, both are super strong. I cant't help but think something may be at play. In for more info. What exactly gave away?

martin82 · 03-11-2013, 06:40 PM

I'll have more info very soon with pictures to get people's thought as well!

wstar · 03-11-2013, 07:21 PM

Was there anything unusual in your setup that could've contributed by putting more stress on it? Unusual alignment, large spacers, very wide wheels, etc? I'm just trying to keep myself from being paranoid next time I'm out in mine.

martin82 · 03-11-2013, 07:26 PM

I run 18x10.5" +30 with a 15mm spacer, so nothing crazy. I snapped when car was on full compression, after landing a hill at the track... I will check to see if it hit anything else (spring perch maybe?)

Dwnshift · 03-11-2013, 09:36 PM

Any off track excursions recently? Curbs?

martin82 · 03-11-2013, 10:09 PM

I didnt have any offs on sunday, except dropping 2 wheels but it was on the passenger side and very soft. I have several offs but none are hard. This was at buttonwillow so we ride the berms pretty hard or "hop" them.... I was running 2:02's in cw13 configuration

Mike · 03-11-2013, 10:38 PM

I bent a rear one at carolina motorsports park when I went hard sideways against some agressive gator, but snapping one is pretty extreme. I had a "large" friend of mine sit/bounce on the back of the car to bend it enough to drive it back on the trailer

Dwnshift · 03-12-2013, 01:14 PM

Are you running coilovers in the rear?
Drop me a pm

Shamu · 03-15-2013, 08:39 AM

Did you have SPC rear arm? Mine snapped too. I see the defect with them if this was SPC. Worried if this was SPL.

SPC threads arm first and then bends the arm. The threads in place where arm bends are fatigued and allows arm to sheer off. If your arm was SPC then I think it's an arm design if not I will be wanting to see arm and type of breakage. Very interested to see that happened? Was it at threaded section. Did you have threaded section lock nut way out towards the end?

martin82 · 03-15-2013, 02:05 PM

Shamu, I still didnt get a chance to tear it apart, but it was right by the thread/lock nut. I should have pics this weekend.

Dwnshift · 03-27-2013, 03:16 AM

We have a couple sets ready at the shop for those that are interested.

fuct · 03-27-2013, 05:15 PM

martin whats the deal? guna fill us in on the broken parts?

SPOHN · 03-27-2013, 05:56 PM

Quote:

Originally Posted by fuct

martin whats the deal? guna fill us in on the broken parts?

Broken SPC rear camber arm. Broke on the threaded part before the jam nut. He just posted on FB last week. Things of this nature happen. He upgraded to the SPL arms which are beefier. Still I feel there is nothing wrong with SPC products. When you track a car things happen in time.

Dwnshift · 03-27-2013, 10:46 PM

Things happen...I can see that after contact.. Or an off track excursion ...and go backwards over curbing.
But if a part fails under load...without these other circumstances... There is only one answer...it's not engineered properly.

Just saying.

fuct · 03-28-2013, 10:18 AM

thx for the clarification, im not a facebook-er so i didnt see which ones and how they broke.

03-11-2013, 06:10 PM	#196 (permalink)
SPOHN A True Z Fanatic Join Date: Feb 2010 Location: Covington, GA Age: 46 Posts: 14,844 Drives: Waiting on next Z Rep Power: 221	Rear camber arms snapped. Damn. Something is wrong with this picture. Either SPC or SPL, both are super strong. I cant't help but think something may be at play. In for more info. What exactly gave away? __________________

03-11-2013, 07:21 PM	#198 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3594	Was there anything unusual in your setup that could've contributed by putting more stress on it? Unusual alignment, large spacers, very wide wheels, etc? I'm just trying to keep myself from being paranoid next time I'm out in mine. __________________ 7AT Track Car! Journal thread / Car setup details

03-11-2013, 10:38 PM	#202 (permalink)
Mike The370Z.com Sponsor Join Date: Jun 2009 Location: Loganville, GA Posts: 5,944 Drives: 370z Rep Power: 2186	I bent a rear one at carolina motorsports park when I went hard sideways against some agressive gator, but snapping one is pretty extreme. I had a "large" friend of mine sit/bounce on the back of the car to bend it enough to drive it back on the trailer __________________ NISSAN: 75 280Z / 86 300ZX GLL /87 Sentra SE / 03 350Z / 23 Z Porsche: 93 968 / 23 Macan GTS / 93 968

03-15-2013, 08:39 AM	#204 (permalink)
Shamu A True Z Fanatic Join Date: Jan 2011 Location: Nor Cal Posts: 1,059 Drives: 370Z Racecar Rep Power: 19	Did you have SPC rear arm? Mine snapped too. I see the defect with them if this was SPC. Worried if this was SPL. SPC threads arm first and then bends the arm. The threads in place where arm bends are fatigued and allows arm to sheer off. If your arm was SPC then I think it's an arm design if not I will be wanting to see arm and type of breakage. Very interested to see that happened? Was it at threaded section. Did you have threaded section lock nut way out towards the end? __________________ Grant Last edited by Shamu; 03-15-2013 at 09:07 AM.

03-27-2013, 10:46 PM	#209 (permalink)
Dwnshift Track Member Join Date: Feb 2012 Location: Cincy Posts: 717 Drives: NISMO 370Z RC Rep Power: 14	Things happen...I can see that after contact.. Or an off track excursion ...and go backwards over curbing. But if a part fails under load...without these other circumstances... There is only one answer...it's not engineered properly. Just saying. ENT-Z, sig11, gomer_110 and 1 others like this.

03-11-2013, 06:40 PM	#197 (permalink)
martin82 A True Z Fanatic Join Date: Nov 2011 Location: los angeles Posts: 2,636 Drives: 12 Nissan 370Z MB M6 Rep Power: 20	I'll have more info very soon with pictures to get people's thought as well!

03-11-2013, 07:26 PM	#199 (permalink)
martin82 A True Z Fanatic Join Date: Nov 2011 Location: los angeles Posts: 2,636 Drives: 12 Nissan 370Z MB M6 Rep Power: 20	I run 18x10.5" +30 with a 15mm spacer, so nothing crazy. I snapped when car was on full compression, after landing a hill at the track... I will check to see if it hit anything else (spring perch maybe?)

03-11-2013, 09:36 PM	#200 (permalink)
Dwnshift Track Member Join Date: Feb 2012 Location: Cincy Posts: 717 Drives: NISMO 370Z RC Rep Power: 14	Any off track excursions recently? Curbs?

03-11-2013, 10:09 PM	#201 (permalink)
martin82 A True Z Fanatic Join Date: Nov 2011 Location: los angeles Posts: 2,636 Drives: 12 Nissan 370Z MB M6 Rep Power: 20	I didnt have any offs on sunday, except dropping 2 wheels but it was on the passenger side and very soft. I have several offs but none are hard. This was at buttonwillow so we ride the berms pretty hard or "hop" them.... I was running 2:02's in cw13 configuration

03-12-2013, 01:14 PM	#203 (permalink)
Dwnshift Track Member Join Date: Feb 2012 Location: Cincy Posts: 717 Drives: NISMO 370Z RC Rep Power: 14	Are you running coilovers in the rear? Drop me a pm

03-15-2013, 02:05 PM	#205 (permalink)
martin82 A True Z Fanatic Join Date: Nov 2011 Location: los angeles Posts: 2,636 Drives: 12 Nissan 370Z MB M6 Rep Power: 20	Shamu, I still didnt get a chance to tear it apart, but it was right by the thread/lock nut. I should have pics this weekend.

03-27-2013, 03:16 AM	#206 (permalink)
Dwnshift Track Member Join Date: Feb 2012 Location: Cincy Posts: 717 Drives: NISMO 370Z RC Rep Power: 14	We have a couple sets ready at the shop for those that are interested.

03-27-2013, 05:15 PM	#207 (permalink)
fuct A True Z Fanatic Join Date: May 2009 Location: Sugar Land Posts: 3,692 Drives: 97' Ranger :) Rep Power: 24	martin whats the deal? guna fill us in on the broken parts?

03-28-2013, 10:18 AM	#210 (permalink)
fuct A True Z Fanatic Join Date: May 2009 Location: Sugar Land Posts: 3,692 Drives: 97' Ranger :) Rep Power: 24	thx for the clarification, im not a facebook-er so i didnt see which ones and how they broke.

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