The Z1 Toe bolt kit is a literal scam.

[Drago86]

It sounds like lots of other have had similar experiences with Z1. I really wish they were better. I can't even fathom how this product was green lit.

 

[Drago86]

isn't 1.8 degree camber roughly what is stock

It's towards the middle upper range for stock, I think the stock range was ~1.5-2, I can scan the paper later, but it was what I requested. Slight toe in on the rear (1/32 is actually slightly less than stock limits but requested by me.) and less than 2 degrees negative camber (and obviously I also wanted more than the minimum stock range). Reducing neg camber and toe when lowered is the hard part so I requested he hit the toe first and then get whatever he could on the camber, very happy with 1.8.


I'm just glad I could hit those numbers with just camber arms and stock toe bolts on a mild drop. I took it on a canyon run on the way home and it worked great. Though, I might actually go up a fraction of an inch in the front as the front wheel air deflectors would kiss the road with and major mid turn dips, and plus they scrape on my driveway when leaving every morning if I don't cut the wheel enough. 12k front 11k rear springs, hipermax S , stock performance sways fwiw.

I also got dumpstered by a Miata on the way home, but It had more to do with his confidence(or my lack thereof) than the limits of the cars(not that I think this would have actually changed anything Miatas are great and the road we were on has zero straights; Calaveras road, from the Milpitas side) as we were both on public roads and obviously both held back.

I ended up at ~2 degrees negative camber in the front and zero toe (requested), no fucas, only toe was adjusted. I actually feel like the car might need slightly more than 2 degrees negative camber in the front, so might get Fuca's in the future to facilitate that.

 

[trackratZ]

Sorry this happened to you

but people ask me why i only recommend SPL arms and a lockout kit

this is why

On top of the quality of the SPL arms, what some don't realize is that camber adjustability is easily done WITHOUT removing the control arm bolts, as most others do including some Nismo branded. For those that set-it-and-forget-it it's fine but if need to adjust often then SPL's design is awesome, my next bucket list buy.

 

[OptionZero]

On top of the quality of the SPL arms, what some don't realize is that camber adjustability is easily done WITHOUT removing the control arm bolts, as most others do including the Nismo branded. For those that set-it-and-forget-it it's fine but if need to adjust often then SPL's design is awesome, my next bucket list buy.

Yes. The latest Z1 design, Voodoo13, and GKtech i believe all technically allow adjustment on car, but they all use a generic jam nut design.

SPL costs more because they use a "double adjuster" with a hex cap, that multiple alignment techs have told me are much easier to use, and allows for more precise settings.

There are also some old, cheap arms out there that require removal of the arm to adjust, which seems pointless to me

 

[FSUZ33]

Not sure about other brands, but the SPL, NISMO and Z1 Forged all have the same (or similar) double-adjustment screw. Threaded outer sleeve with a different thread pitch than the inside of the sleeve and rod end.
All three have cap screws to bind the outer screw/sleeve to the arm.
Z1 uses lock nuts to bind the rod ends, where SPL/NISMO use a clamp that compresses the end of the adjustment screw to the rod end.

I grabbed the Z1 forged FUCAs. Hopefully my experience with them doesn't warrant its own thread on here at some point.

Haven't pulled the trigger rear toe arms/buckets, but I went SPL for rear camber and traction arms specifically for the clamp-style binding over jam nuts. For some reason the NISMO dogbone style arms have jam nuts where SPL's have clamps (are the dogbone-style NISMO arms made by SPL too?). They're priced pretty much the same, so it was clamps for me. Just personal preference.

 

[haohmaru]

Man, I feel like Z1 is on blast lately but for perfectly valid reasons. I might order products from them but I will never buy anything that's one of their Z1 branded products again. 4 out of 4 products I've got from them have all had issues.

I have their catch can and undershroud, those seem to be good. I also picked up the aluminum oil pan which I haven't installed yet.

Going to be a little more cautious after reading all this.

 

[traska_rz34]

I have their catch can and undershroud, those seem to be good. I also picked up the aluminum oil pan which I haven't installed yet.

Going to be a little more cautious after reading all this.

It’s tough because I want to like their stuff but my experience so far has been all over the place. I will say that their support has always been great though.

Here’s the rundown:
Z1 Carbon Fiber Engine Cover - the top half of the cover had a hole that was nowhere close to lining up. Ended up doing a return to replace the entire cover (button included). Top now fits but the bottom fitment isn’t great either now. I have to bend it slightly to line up.

Z1 Duckbill Spoiler - installed professionally 3 months ago and now the passenger corner has already separated from the 3M tape it attaches with. Also creaks like crazy.

Z1 3-point Aluminum Brace - what a nightmare this was. Installed just to have it knock around in the engine bay every time we took the car out. Finally got fed up and took it off to find out that the engine was making contact with the brace in 2 different places.

Z1 Oil Catch Can - the hose clamps they include with this kit are a joke. Had to buy new clamps instead. Additionally, all 3 of the Allen head screws to attach it to the bracket all had 3 different sized heads so I needed 3 separate Allen keys to attach it.

What’s disappointing is that since having all of these parts, I have found threads, reviews, etc. of literally all of these issues so if the feedback is making it back to Z1, they’re certainly not doing a ton to address them.

I literally started looking at new wheel spacers last night since I’ve got the Z1 spacers. Out of all the Z1 parts I’ve owned, I’d certainly like those not to break too. 🫠

 

[haohmaru]

It’s tough because I want to like their stuff but my experience so far has been all over the place. I will say that their support has always been great though.

Here’s the rundown:
Z1 Carbon Fiber Engine Cover - the top half of the cover had a hole that was nowhere close to lining up. Ended up doing a return to replace the entire cover (button included). Top now fits but the bottom fitment isn’t great either now. I have to bend it slightly to line up.

Z1 Duckbill Spoiler - installed professionally 3 months ago and now the passenger corner has already separated from the 3M tape it attaches with. Also creaks like crazy.

Z1 3-point Aluminum Brace - what a nightmare this was. Installed just to have it knock around in the engine bay every time we took the car out. Finally got fed up and took it off to find out that the engine was making contact with the brace in 2 different places.

Z1 Oil Catch Can - the hose clamps they include with this kit are a joke. Had to buy new clamps instead. Additionally, all 3 of the Allen head screws to attach it to the bracket all had 3 different sized heads so I needed 3 separate Allen keys to attach it.

What’s disappointing is that since having all of these parts, I have found threads, reviews, etc. of literally all of these issues so if the feedback is making it back to Z1, they’re certainly not doing a ton to address them.

I literally started looking at new wheel spacers last night since I’ve got the Z1 spacers. Out of all the Z1 parts I’ve owned, I’d certainly like those not to break too. 🫠

Haha, I forgot I also have the z1 spacers, those are good. Hard to mess up spacers I guess.

And yeah, I did use better hose clamps on the catch can too. I do like it though, works well, the hoses were molded just right and it has an OEM look.

 

[FSUZ33]

Not saying they're defective...I assume they're not...but I did their 5mm spacers, had a pretty good vibration and pulled them. Although it's supposed to, I assumed the hub center didn't have enough protrusion to perfectly center one or more of the wheels. With all of this quality stuff boiling up I may mic them to see if one or more may have uneven thickness.

 

[haohmaru]

Not saying they're defective...I assume they're not...but I did their 5mm spacers, had a pretty good vibration and pulled them. Although it's supposed to, I assumed the hub center didn't have enough protrusion to perfectly center one or more of the wheels. With all of this quality stuff boiling up I may mic them to see if one or more may have uneven thickness.

No vibration here, not up to 135ish at least

 

[FSUZ33]

No vibration here, not up to 135ish at least

I assume they're fine. Not sure what it was though as everything appeared to be seated properly. Started around 15-20, then it would taper off and start back around 30-35. It felt like only one front wheel, but didn't verify/test anything. Just pulled them and moved on.

 

[el mágico]

Add the diff brace to the list. I bought their diff brace a few weeks back and it did not clear my exhaust.

 

[OptionZero]

Because their products are produced elsewhere there is no direct quality control

Now that isnt uncommon

but then their customer support is often lacking

i have their aluminum undertray, i liked the two piece design. Thats been fine so far

maybe stick to nonmoving parts

 

[OptionZero]

Add the diff brace to the list. I bought their diff brace a few weeks back and it did not clear my exhaust.

they will blame you for this bc they will claim they cannot test every exhaust

 

[el mágico]

they will blame you for this bc they will claim they cannot test every exhaust

Before they tried this, I mentioned that nowhere on their product listing did it say it will or won't clear '3 exhausts.

Then I added they can now put this caveat on their listing. They said ok. Full refund + ship.

BUT it is true. Now they can.