Z1 Motorsports 370z Adjustable Suspension Kit? Any Good?

Brxce · 08-18-2021, 10:16 PM

Quote:

Originally Posted by JARblue

SPL Rear Toe Arms

Which SPL offers 2 styles. A billet version and a tubular chromoly version, not sure of the differences between the 2. Along the lines of SPL, they offer rear traction arms (1 style), rear camber links and rear camber arms. I’m assuming they replace the same OEM part but again just differences in style for different applications and also rear sway bar endlinks. As far as the bushings go, there would be no need to buy those as they come with the other parts? Lastly,if you get the eccentric lockout kit they have available, would you still need the rear toe bolts?

BettyZ · 08-19-2021, 11:10 AM

Quote:

Originally Posted by Brxce

Which SPL offers 2 styles. A billet version and a tubular chromoly version, not sure of the differences between the 2. Along the lines of SPL, they offer rear traction arms (1 style), rear camber links and rear camber arms. I’m assuming they replace the same OEM part but again just differences in style for different applications and also rear sway bar endlinks. As far as the bushings go, there would be no need to buy those as they come with the other parts? Lastly,if you get the eccentric lockout kit they have available, would you still need the rear toe bolts?

Billet costs more. Might be more strength if you're absolutely beating the f out of the Z, but not worth it.

SPL sells rear camber links and arms (only difference appears to be one is billet one is not), traction arms, and mid-links - or rear toe arms if you're going divorced like JAR

.

The bushings they sell replace the OEM bushings on the knuckles; they do not come with the arms or links. No real need for those unless you're going whole hog.

Eccentric lockout comes with its own bolts so no need to keep OEM bolts.

JARblue · 08-19-2021, 11:20 AM

Quote:

Originally Posted by BettyZ

Billet costs more. Might be more strength if you're absolutely beating the f out of the Z, but not worth it.

SPL sells ... mid-links - or rear toe arms if you're going divorced like JAR

Got that backwards. The mid-links (w/ spring bucket) are for a divorced rear suspension setup like stock. A true type suspension setup uses the toe arms instead of the spring bucket.

Brxce · 08-24-2021, 09:49 PM

I can’t remember which thread I read it on, but IIRC, the lockout bolt is sorta important in the sense that the factory bolt slips? Or something like that which throws your alignment off? If you do “get the entire catalog” from SPL what are the chances the factory bushings on the knuckle will go, you’re better of replacing them while you have the whole suspension apart I would think?

OptionZero · 08-25-2021, 04:17 PM

correct

From the factory, the rear camber is adjusted with an eccentric bolt (it's "offset" such that you rotate it, and the arm changes length). These are prone to slipping over time, so your alignment is altered

Lock out bolt is just what it sounds. Instead of an adjustable bolt, the lockout bolt stays in place and locks the control arm in position.

The SPL arm itself is adjustable in length, and that is how camber is then adjusted

Bushing replacement is more expensive and time consuming. If you have the time and money, do it; but if you stuff isn't worn, its not needed

Brxce · 08-25-2021, 09:44 PM

Hopefully after 30k miles the bushings are fine.

Rusty · 08-25-2021, 09:56 PM

Quote:

Originally Posted by Brxce

Hopefully after 30k miles the bushings are fine.

The rear knuckle bushings are fine. Only replace them if you want the most out of the car.

Brxce · 08-25-2021, 10:46 PM

Not sure if this is the right place to ask but since it’s sorta on topic, has anyone reading this thread or keeping up with it installed the SPL parts themselves? If so on a scale of 1-5 how difficult was it and did you need any “specialty” tools? I’m gonna guess no more than a 3 but that might be my lack of suspension work.

Rusty · 08-26-2021, 03:52 AM

Quote:

Originally Posted by Brxce

Not sure if this is the right place to ask but since it’s sorta on topic, has anyone reading this thread or keeping up with it installed the SPL parts themselves? If so on a scale of 1-5 how difficult was it and did you need any “specialty” tools? I’m gonna guess no more than a 3 but that might be my lack of suspension work.

Guess you didn't look hard enough.

The Complete SPL Front Suspension

The Complete SPL Rear Suspension (Almost)

SPL Rear Sub-Frame Bushings

DaveZ03 · 08-26-2021, 08:14 AM

Quote:

Originally Posted by Brxce

Not sure if this is the right place to ask but since it’s sorta on topic, has anyone reading this thread or keeping up with it installed the SPL parts themselves? If so on a scale of 1-5 how difficult was it and did you need any “specialty” tools? I’m gonna guess no more than a 3 but that might be my lack of suspension work.

Installed my FUCA/rear camber arms (both SPL) and coilovers myself. Read the walkthroughs and you'll be all set. Wasn't difficult at all after I did my research and knew what was ahead of me.

JARblue · 08-26-2021, 07:05 PM

Quote:

Originally Posted by Brxce

Not sure if this is the right place to ask but since it’s sorta on topic, has anyone reading this thread or keeping up with it installed the SPL parts themselves? If so on a scale of 1-5 how difficult was it and did you need any “specialty” tools? I’m gonna guess no more than a 3 but that might be my lack of suspension work.

Rusty's threads will tell you everything you need to know. Most of the suspension bits are fairly straightforward. The bushings are the most likely areas that'll give you trouble.

CeeCab705 · 08-26-2021, 09:35 PM

I have some SPL stuff and very pleased, like everyone else says. Check Voodoo13 as it seems to be equivalent quality to SPL.

Brxce · 08-30-2021, 10:08 PM

Shame on me because I did not look at all haha Looking back however, my question of difficulty 1 to 5 probably wasn’t a great question either as mechanical experience could lead 2 people to 2 different answers. When the time comes, if this is something I’m willing to take on, Rusty did provide great write ups on this and it will be greatly appreciated saving a few clicks in the search ��

OptionZero · 09-01-2021, 03:30 PM

you're going to need a professional alignment anyways, so unless cost is really that big an issue . . . I just dumped mine off at a shop

they'll thank you for having super duper easy to adjust arms though

HapaZ · 10-02-2021, 02:45 PM

I’ve got the Z1 UCA’s and I’m happy with them. Yes they are more difficult to adjust, but if you are only going to change camber once you lower your car it’s really not that big of a deal. Yes the SPL stuff is nicer, but it has better be for the price difference. I’d say the Z1 suspension pieces are price appropriate and can be reliable. It’s not junk, but it’s not top of the line.

08-25-2021, 04:17 PM	#20 (permalink)
OptionZero A True Z Fanatic Join Date: Apr 2011 Location: Sacramento Posts: 3,160 Drives: 15 370Z Nismo 6MT Rep Power: 203226	correct From the factory, the rear camber is adjusted with an eccentric bolt (it's "offset" such that you rotate it, and the arm changes length). These are prone to slipping over time, so your alignment is altered Lock out bolt is just what it sounds. Instead of an adjustable bolt, the lockout bolt stays in place and locks the control arm in position. The SPL arm itself is adjustable in length, and that is how camber is then adjusted Bushing replacement is more expensive and time consuming. If you have the time and money, do it; but if you stuff isn't worn, its not needed JARblue, Rusty, ZontheRocks and 1 others like this. __________________ OptionZero Build Thread

08-30-2021, 10:08 PM	#28 (permalink)
Brxce Base Member Join Date: Feb 2021 Location: Connecticut, USA Posts: 21 Drives: 2019 370z Black 6M Rep Power: 4	Shame on me because I did not look at all haha Looking back however, my question of difficulty 1 to 5 probably wasn’t a great question either as mechanical experience could lead 2 people to 2 different answers. When the time comes, if this is something I’m willing to take on, Rusty did provide great write ups on this and it will be greatly appreciated saving a few clicks in the search �� JARblue, danegrey, Rusty and 2 others like this.

09-01-2021, 03:30 PM	#29 (permalink)
OptionZero A True Z Fanatic Join Date: Apr 2011 Location: Sacramento Posts: 3,160 Drives: 15 370Z Nismo 6MT Rep Power: 203226	you're going to need a professional alignment anyways, so unless cost is really that big an issue . . . I just dumped mine off at a shop they'll thank you for having super duper easy to adjust arms though JARblue, sx moneypit and ZontheRocks like this. __________________ OptionZero Build Thread

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08-24-2021, 09:49 PM	#19 (permalink)
Brxce Base Member Join Date: Feb 2021 Location: Connecticut, USA Posts: 21 Drives: 2019 370z Black 6M Rep Power: 4	I can’t remember which thread I read it on, but IIRC, the lockout bolt is sorta important in the sense that the factory bolt slips? Or something like that which throws your alignment off? If you do “get the entire catalog” from SPL what are the chances the factory bushings on the knuckle will go, you’re better of replacing them while you have the whole suspension apart I would think?

08-25-2021, 09:44 PM	#21 (permalink)
Brxce Base Member Join Date: Feb 2021 Location: Connecticut, USA Posts: 21 Drives: 2019 370z Black 6M Rep Power: 4	Hopefully after 30k miles the bushings are fine.

08-25-2021, 10:46 PM	#23 (permalink)
Brxce Base Member Join Date: Feb 2021 Location: Connecticut, USA Posts: 21 Drives: 2019 370z Black 6M Rep Power: 4	Not sure if this is the right place to ask but since it’s sorta on topic, has anyone reading this thread or keeping up with it installed the SPL parts themselves? If so on a scale of 1-5 how difficult was it and did you need any “specialty” tools? I’m gonna guess no more than a 3 but that might be my lack of suspension work.

08-26-2021, 09:35 PM	#27 (permalink)
CeeCab705 Base Member Join Date: Oct 2019 Location: Chicagoland Posts: 42 Drives: 2013 370Z M6 Rep Power: 5	I have some SPL stuff and very pleased, like everyone else says. Check Voodoo13 as it seems to be equivalent quality to SPL.

10-02-2021, 02:45 PM	#30 (permalink)
HapaZ Base Member Join Date: Sep 2014 Location: NorCal Posts: 242 Drives: 2012 370z Base Coupe Rep Power: 10	I’ve got the Z1 UCA’s and I’m happy with them. Yes they are more difficult to adjust, but if you are only going to change camber once you lower your car it’s really not that big of a deal. Yes the SPL stuff is nicer, but it has better be for the price difference. I’d say the Z1 suspension pieces are price appropriate and can be reliable. It’s not junk, but it’s not top of the line.