Anyone still running Z1 FUCAs?

MrPostman · 10-10-2018, 06:12 PM

I have a set of these on my car and I have seen the broken ball joint examples from the bad batch they had. I was sent the replacements and I installed them. So far I have done 2 track days and a bunch of Sunday morning backroad blasting with my Porsche buddies since then without issue. Now I do know a fair bit about metal as I have a hobby machine shop, I have done quite a bit of work on guns over the last 5 years, milling slides , fitting barrels,etc.... The old ones either were not designed right or the heat treating was done incorrectly which made them brittle and snap.

The pics I saw listed here showed them breaking where the threads ended in the drilled hole for the bolt, I would assume the new ones, if they are in fact redesigned, either use a shorter bolt so that stressed area has more material to prevent the same issue, or they just got the heat treating right. To be honest I am tempted to buy some new ones and cut them apart just to see what has changed.

Anyway so is anyone else still using these and if so what has been your experience. Just wanted to get honest opinions from folks who have them before I jump on the SPL bandwagon.

wideglideleon · 10-18-2018, 07:02 PM

I was one of the one's that had the Z1 FUCA's and had multiple issues with them, first bolts backing out , got the replacements with stronger locktite, then a few months later the ball joints snapped off. After having my car towed twice and dealing with the damage from the issue, I changed mine to SPL and have not looked back since. No issues at all with the SPL FUCA's other then the price.

HapaZ · 10-25-2018, 01:36 AM

I have a set of them. Z1 sent me a replacement set of ball joints - I didn’t have any issues before or after replacement. They’ve held their settings just fine and haven’t had any issues with bolts backing out. I used the recommended red loctite when I installed.

Spooler · 10-25-2018, 08:06 AM

SPL FUCA's an don't look back.

BettyZ · 10-26-2018, 03:32 PM

I'll happily sell you my new ones if you really want a look at the inside lol

OptionZero · 10-26-2018, 06:46 PM

the SPL's have caster adjustment; i think the only other option on the market that does is the Voodoo 13 ones

marrawi · 11-10-2018, 01:22 AM

I installed both FUCA and rear arms from Z1 three weeks ago. I called Z1 prior to purchase and asked if I'd better go with SPC, John assured me that the issue was in first batches and was corrected. They have sold and installed many since with no problems. Got corner balance and alignment. So far so good.

Sent from my SM-G955U using Tapatalk

marrawi · 11-10-2018, 01:23 AM

Quote:

Originally Posted by OptionZero

the SPL's have caster adjustment; i think the only other option on the market that does is the Voodoo 13 ones

Z1 FUCA has caster adjustment too

Sent from my SM-G955U using Tapatalk

OptionZero · 11-10-2018, 10:35 AM

They have built in increased camber but I'm pretty sure there's no adjustability

https://www.z1motorsports.com/suspen...0-p-11659.html

k67p67 · 11-10-2018, 05:20 PM

Looks like you can adjust both camber and caster but you'd have to unbolt the arms, adjust, and reinstall them.

PharmDZ · 12-02-2018, 05:22 PM

Quote:

Originally Posted by k67p67

Looks like you can adjust both camber and caster but you'd have to unbolt the arms, adjust, and reinstall them.

aka your tuner will hate you, and probably will cost more for adjusting/alignments lol

k67p67 · 12-02-2018, 10:17 PM

Quote:

Originally Posted by PharmDZ

aka your tuner will hate you, and probably will cost more for adjusting/alignments lol

Agreed

10-10-2018, 06:12 PM	#1 (permalink)
MrPostman Base Member Join Date: Jun 2018 Location: Alabama Age: 56 Posts: 41 Drives: 2010 Nissan 370Z M6 Rep Power: 7	Anyone still running Z1 FUCAs? I have a set of these on my car and I have seen the broken ball joint examples from the bad batch they had. I was sent the replacements and I installed them. So far I have done 2 track days and a bunch of Sunday morning backroad blasting with my Porsche buddies since then without issue. Now I do know a fair bit about metal as I have a hobby machine shop, I have done quite a bit of work on guns over the last 5 years, milling slides , fitting barrels,etc.... The old ones either were not designed right or the heat treating was done incorrectly which made them brittle and snap. The pics I saw listed here showed them breaking where the threads ended in the drilled hole for the bolt, I would assume the new ones, if they are in fact redesigned, either use a shorter bolt so that stressed area has more material to prevent the same issue, or they just got the heat treating right. To be honest I am tempted to buy some new ones and cut them apart just to see what has changed. Anyway so is anyone else still using these and if so what has been your experience. Just wanted to get honest opinions from folks who have them before I jump on the SPL bandwagon. simul8r likes this. __________________ Life is short, don't waste your time driving something boring.....

10-25-2018, 01:36 AM	#3 (permalink)
HapaZ Base Member Join Date: Sep 2014 Location: NorCal Posts: 245 Drives: 2012 370z Base Coupe Rep Power: 11	I have a set of them. Z1 sent me a replacement set of ball joints - I didn’t have any issues before or after replacement. They’ve held their settings just fine and haven’t had any issues with bolts backing out. I used the recommended red loctite when I installed. MrPostman likes this.

10-25-2018, 08:06 AM	#4 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 13,834 Drives: 2013 Nismo 370z Rep Power: 2684392	SPL FUCA's an don't look back. DarkJak, osbornsm, Hotrodz and 1 others like this.

10-26-2018, 03:32 PM	#5 (permalink)
BettyZ A True Z Fanatic Join Date: Aug 2018 Location: Chicagoland Age: 38 Posts: 5,261 Drives: A Garage Queen Rep Power: 2684371	I'll happily sell you my new ones if you really want a look at the inside lol __________________ '14 MB Nismo \| Boost Lab 6870 1.32 AR 553 HP / 471 ft.-lbs. Betty Mods

10-26-2018, 06:46 PM	#6 (permalink)
OptionZero A True Z Fanatic Join Date: Apr 2011 Location: Sacramento Posts: 3,235 Drives: 15 370Z Nismo 6MT Rep Power: 214100	the SPL's have caster adjustment; i think the only other option on the market that does is the Voodoo 13 ones wideglideleon likes this. __________________ OptionZero Build Thread

10-18-2018, 07:02 PM	#2 (permalink)
wideglideleon Track Member Join Date: Apr 2015 Location: Tucson AZ Posts: 569 Drives: SC 09 370Z LG 7AT Rep Power: 64085	I was one of the one's that had the Z1 FUCA's and had multiple issues with them, first bolts backing out , got the replacements with stronger locktite, then a few months later the ball joints snapped off. After having my car towed twice and dealing with the damage from the issue, I changed mine to SPL and have not looked back since. No issues at all with the SPL FUCA's other then the price.

11-10-2018, 01:22 AM	#7 (permalink)
marrawi Base Member Join Date: May 2015 Location: California Posts: 74 Drives: 2015 370z A/T Rep Power: 10	I installed both FUCA and rear arms from Z1 three weeks ago. I called Z1 prior to purchase and asked if I'd better go with SPC, John assured me that the issue was in first batches and was corrected. They have sold and installed many since with no problems. Got corner balance and alignment. So far so good. Sent from my SM-G955U using Tapatalk MrPostman likes this.

11-10-2018, 10:35 AM	#9 (permalink)
OptionZero A True Z Fanatic Join Date: Apr 2011 Location: Sacramento Posts: 3,235 Drives: 15 370Z Nismo 6MT Rep Power: 214100	They have built in increased camber but I'm pretty sure there's no adjustability https://www.z1motorsports.com/suspen...0-p-11659.html __________________ OptionZero Build Thread

11-10-2018, 05:20 PM	#10 (permalink)
k67p67 Enthusiast Member Join Date: Oct 2016 Location: Rancho Cucamonga, CA Posts: 304 Drives: 2017 Nismo Tech 6MT Rep Power: 3937	Looks like you can adjust both camber and caster but you'd have to unbolt the arms, adjust, and reinstall them. wideglideleon and marrawi like this. __________________ 2017 370Z Nismo Tech 6MT PART OUT IN PROGRESS Work \| Motordyne \| Powertrix \| Swift \| Michelin \| Takeda \| Hotchkis \| RJM \| Voodoo13 \| SPL \| SPC \| Z1 Motorsports \| ZSpeed \| Morimoto \| Craft Square

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