Kinetix vs SPC front camber arms

gomer_110 · 02-23-2015, 08:04 PM

Before anyone can say it, yes the SPL arms are better. I can't use the SPL arms as SCCA rules for the class I autox in prohibit spherical bearings which only leaves the SPC or Kinetix front camber arms. Any thoughts on one over the other?

Zauskycop · 02-23-2015, 08:34 PM

Really interested in knowing what class you are speaking of??

Tracy Ramsey

gomer_110 · 02-23-2015, 09:03 PM

Asp

PharmDZ · 02-23-2015, 09:52 PM

Well, good to know since I'm in ASP and was eventually thinking of upgrading to SPL... I have SPC, and have heard better things about them. They seem to be keeping alignment and not slipping at all through plenty of autox days and a few HPDE a year. I'll let you know how they held up this past year through heavier abuse once I go get a re-alignment/corner balance done the 2nd week of March.

DEpointfive0 · 02-23-2015, 10:09 PM

Forgive my ignorance, but...
Who cares? And who's checking?

PharmDZ · 02-24-2015, 07:52 AM

Really anal-retentive rule-abiding national level autocross guys, and maybe noone? Haha point taken DE

gomer_110 · 02-24-2015, 08:06 AM

Quote:

Originally Posted by PharmDZ

Really anal-retentive rule-abiding national level autocross guys, and maybe noone? Haha point taken DE

This. As I run some national events and also plan on heading to Lincoln for Nationals this year, following the rules is something I have to worry about.

DEpointfive0 · 02-24-2015, 08:15 AM

Quote:

Originally Posted by gomer_110

This. As I run some national events and also plan on heading to Lincoln for Nationals this year, following the rules is something I have to worry about.

But like if you're in the next level up that will allow for the SPL arms, why do you care that you're in the higher level? Because your car will be slower than the cars in that level? Isn't it all about times anyways?

gomer_110 · 02-24-2015, 08:37 AM

Going up to the next prep level makes the car completely noncompetitive based on the other cars in the class (a lot of turbo charged, monster power cars including GT-R's iirc). Additionally, the money to prep the car for the next level gets pretty crazy. Just to have a rule book built car for the class I run is somewhere around $30k.

GSS138 · 02-24-2015, 08:46 PM

Quote:

Originally Posted by gomer_110

Going up to the next prep level makes the car completely noncompetitive based on the other cars in the class (a lot of turbo charged, monster power cars including GT-R's iirc). Additionally, the money to prep the car for the next level gets pretty crazy. Just to have a rule book built car for the class I run is somewhere around $30k.

Your rules suck. Feel sorry for you. Is there no other group you can run with? Seriously? they have a problem with spherical bearings? This is why I hate these "good ole" boy racing organizations. Who ******* cares about spherical camber arm bearnings?

That being said, there is nothing good I can say about SPC camber arms, several of my 350 friends have had good success with kinetix. They both have a sh1tty design from an engineering standpoint.

AntiVenom · 02-24-2015, 09:11 PM

Quote:

Originally Posted by GSS138

That being said, there is nothing good I can say about SPC camber arms, several of my 350 friends have had good success with kinetix. They both have a sh1tty design from an engineering standpoint.

since i am newb to suspension engineering/design I'd appreciate some elaboration on your comment.

seems like the SPCs are delivering good results on a lot of cars here. the SPL looks very well designed but also like overkill for the average, casual track guy (2-3 HPDEs and about the same autoX per year.)

GSS138 · 02-24-2015, 09:28 PM

It's some basic mfgr/engineering concepts. I am no pro in either unless you want to talk about databases/software engineering lol.

but the idea is this, the SPC and Kinetix arms are both a " rod, loaded in sheer" design. I have no idea why someone would do this for an auto part.

That rod/bolt looking thing that attaches to the spindle is compressed in sheer. Think about if you wanted to break a pencil in half with your hands, what would be the easiest way to do it? Load it in sheer.

Now instead of the easiest way, what would be the most difficult way? Loaded it in compression.

If you took that same pencil and put the eraser near your palm, and the tip near the tip of your middle finger, it would be loaded in compression-and very difficult no matter how strong your arms and hands are, to break.

now look at the SPC/kinetix Rod(pencil) it's that little threaded 1/4"? rod , and it's loaded in sheer.

now look at the SPL camber arm, it's nearly an inch of steel, with a rod, loaded at 90 degrees in compression with a washer.

The truth is you are pretty unlikely to die at an autoX event. There's not a lot of sh1t to run into besides those kittens that live under the cones.

On a road course, it's really not hard to kill yourself. If I am going to kill myself, it's going to be because I was trying to drive my car too fast, not because I was too cheap to spend 400 dollars extra for a quality piece of equipment and my effing camber arm snapped like a pencil.

DEpointfive0 · 02-24-2015, 08:41 AM

PM'd gomer, I don't want to take away from your thread.

But let me put my 2 cents in for taking you off topic. Both arms work fine. SPC's won't slip if you torque the shít out of them (Martin82 used to track them to hell and back) and Kinetix aren't bad either. But less prone to needing adjustments

speedfreek · 02-24-2015, 09:04 AM

SPC > Kinetix. At least in my book. I have tracked with SPC and just upgraded to SPL. Kinetix will break as a 350 experienced at AMP. DE.5 is correct in the SPC will be less prone to slipping when you torque them way pass what is called out. Or you could create a bracket to lock everything in place like Baer383 did back in the day.

"SPC camber arm fix"

bullitt5897 · 02-24-2015, 08:58 AM

I have run the SPC and as DE has stated they will hold if you tighten them down! lol I had to use PB blaster and a breaker bar to unlock mine hahaha... just an FYI the top nut is a 27mm nut so get a socket for it if you plan on making your own adjustments.

02-23-2015, 08:04 PM	#1 (permalink)
gomer_110 A True Z Fanatic Join Date: Aug 2011 Location: Perrysburg, OH Posts: 17,992 Drives: '11 Nismo #528 GM Rep Power: 36941	Kinetix vs SPC front camber arms Before anyone can say it, yes the SPL arms are better. I can't use the SPL arms as SCCA rules for the class I autox in prohibit spherical bearings which only leaves the SPC or Kinetix front camber arms. Any thoughts on one over the other? __________________ '11 370Z Nismo #528 Fast Intentions \| Stillen \| Motordyne \| Uprev \| CSF \| Zspeed \| Z1 Motorsports \| AST \| Swift \| SPC \| SPL \| Whiteline \| Hotchkis \| Bride \| Schroth \| Robispec \| Cusco \| Nismo \| Volk \| Forgestar \| Hoosier \| RJM '17 Titan Bone Stock

02-23-2015, 09:03 PM	#3 (permalink)
gomer_110 A True Z Fanatic Join Date: Aug 2011 Location: Perrysburg, OH Posts: 17,992 Drives: '11 Nismo #528 GM Rep Power: 36941	Asp __________________ '11 370Z Nismo #528 Fast Intentions \| Stillen \| Motordyne \| Uprev \| CSF \| Zspeed \| Z1 Motorsports \| AST \| Swift \| SPC \| SPL \| Whiteline \| Hotchkis \| Bride \| Schroth \| Robispec \| Cusco \| Nismo \| Volk \| Forgestar \| Hoosier \| RJM '17 Titan Bone Stock

02-23-2015, 10:09 PM	#5 (permalink)
DEpointfive0 A True Z Fanatic Join Date: Jan 2012 Location: SoCal Posts: 14,824 Drives: a lot Rep Power: 17152	Forgive my ignorance, but... Who cares? And who's checking? ufoz8mycow likes this. __________________ Do YOU want to know what/where I got my username from? ( Click to show/hide ) NSFW due to language:

02-24-2015, 08:37 AM	#9 (permalink)
gomer_110 A True Z Fanatic Join Date: Aug 2011 Location: Perrysburg, OH Posts: 17,992 Drives: '11 Nismo #528 GM Rep Power: 36941	Going up to the next prep level makes the car completely noncompetitive based on the other cars in the class (a lot of turbo charged, monster power cars including GT-R's iirc). Additionally, the money to prep the car for the next level gets pretty crazy. Just to have a rule book built car for the class I run is somewhere around $30k. __________________ '11 370Z Nismo #528 Fast Intentions \| Stillen \| Motordyne \| Uprev \| CSF \| Zspeed \| Z1 Motorsports \| AST \| Swift \| SPC \| SPL \| Whiteline \| Hotchkis \| Bride \| Schroth \| Robispec \| Cusco \| Nismo \| Volk \| Forgestar \| Hoosier \| RJM '17 Titan Bone Stock

02-24-2015, 09:28 PM	#12 (permalink)
GSS138 Track Member Join Date: Mar 2013 Location: Mission Viejo, CA Posts: 769 Drives: '12 370Z 6M Sport Rep Power: 14	It's some basic mfgr/engineering concepts. I am no pro in either unless you want to talk about databases/software engineering lol. but the idea is this, the SPC and Kinetix arms are both a " rod, loaded in sheer" design. I have no idea why someone would do this for an auto part. That rod/bolt looking thing that attaches to the spindle is compressed in sheer. Think about if you wanted to break a pencil in half with your hands, what would be the easiest way to do it? Load it in sheer. Now instead of the easiest way, what would be the most difficult way? Loaded it in compression. If you took that same pencil and put the eraser near your palm, and the tip near the tip of your middle finger, it would be loaded in compression-and very difficult no matter how strong your arms and hands are, to break. now look at the SPC/kinetix Rod(pencil) it's that little threaded 1/4"? rod , and it's loaded in sheer. now look at the SPL camber arm, it's nearly an inch of steel, with a rod, loaded at 90 degrees in compression with a washer. The truth is you are pretty unlikely to die at an autoX event. There's not a lot of sh1t to run into besides those kittens that live under the cones. On a road course, it's really not hard to kill yourself. If I am going to kill myself, it's going to be because I was trying to drive my car too fast, not because I was too cheap to spend 400 dollars extra for a quality piece of equipment and my effing camber arm snapped like a pencil. AntiVenom likes this. __________________ Current Mods: Vorpal Weapon +5. Last edited by GSS138; 02-24-2015 at 09:34 PM.

02-23-2015, 08:34 PM	#2 (permalink)
Zauskycop Base Member Join Date: May 2011 Location: Hinckley IL Posts: 228 Drives: 2012 370Z, '16 Miata Rep Power: 14	Really interested in knowing what class you are speaking of?? Tracy Ramsey

02-23-2015, 09:52 PM	#4 (permalink)
PharmDZ Track Member Join Date: Jul 2012 Location: New Jersey Posts: 997 Drives: 11 Nissan 370Z BS M6 Rep Power: 14	Well, good to know since I'm in ASP and was eventually thinking of upgrading to SPL... I have SPC, and have heard better things about them. They seem to be keeping alignment and not slipping at all through plenty of autox days and a few HPDE a year. I'll let you know how they held up this past year through heavier abuse once I go get a re-alignment/corner balance done the 2nd week of March.

02-24-2015, 07:52 AM	#6 (permalink)
PharmDZ Track Member Join Date: Jul 2012 Location: New Jersey Posts: 997 Drives: 11 Nissan 370Z BS M6 Rep Power: 14	Really anal-retentive rule-abiding national level autocross guys, and maybe noone? Haha point taken DE

02-24-2015, 08:41 AM	#13 (permalink)
DEpointfive0 A True Z Fanatic Join Date: Jan 2012 Location: SoCal Posts: 14,824 Drives: a lot Rep Power: 17152	PM'd gomer, I don't want to take away from your thread. But let me put my 2 cents in for taking you off topic. Both arms work fine. SPC's won't slip if you torque the shít out of them (Martin82 used to track them to hell and back) and Kinetix aren't bad either. But less prone to needing adjustments __________________ Do YOU want to know what/where I got my username from? ( Click to show/hide ) NSFW due to language:

02-24-2015, 09:04 AM	#14 (permalink)
speedfreek A True Z Fanatic Join Date: Feb 2012 Location: Huntsville,AL Posts: 1,724 Drives: '12 370Z PW 6sp Rep Power: 19	SPC > Kinetix. At least in my book. I have tracked with SPC and just upgraded to SPL. Kinetix will break as a 350 experienced at AMP. DE.5 is correct in the SPC will be less prone to slipping when you torque them way pass what is called out. Or you could create a bracket to lock everything in place like Baer383 did back in the day. "SPC camber arm fix" DEpointfive0 likes this. __________________ Tomei\|Berk\|Takeda\|ZSpeed\|Fortune Auto\|Swift\|Eibach\|SPL\|Carbotech\|Motul\|Powertrix\|Stillen\|Aerojacket\|Z1\|Forgestar\|Enkei\|Project Kics\|Nismo Ti\|Llumar speedfreek's journal

02-24-2015, 08:58 AM	#15 (permalink)
bullitt5897 Premium Member Join Date: Jan 2009 Location: North GA Posts: 6,831 Drives: Twin Turbo Z34 Rep Power: 3683	I have run the SPC and as DE has stated they will hold if you tighten them down! lol I had to use PB blaster and a breaker bar to unlock mine hahaha... just an FYI the top nut is a 27mm nut so get a socket for it if you plan on making your own adjustments. __________________ *Shop Cars: 2013 318whp Nismo VspecII 370z SOLD, 2009 1000hp+ 93oct 4.0L TT 370z Fast Intentions STAGE 4 #054*

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