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Wheels | Tires | Spacers | Hub -- Sponsored by The Tire Rack Specific topics relating to wheels and tires.


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Old 02-19-2020, 04:44 PM   #113
APEX Race Parts
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Originally Posted by RotARy15 View Post
Well, now I am getting slightly concerned. I just got in on that group buy for the 17x9 et42 on the understanding that they fit PP with Sachs. Don't they?

Or is it just a camber bolts vs plates issue? I planned on plates but don't have them yet. Although I expect they will be in by the time the group buy wheels are delivered...
Thank you for your recent participation in the GB. I'm happy to help provide more clarity and guidance in regards to your specific setup.

Since the PP Sachs struts have a slightly larger silhouette in comparison to the non-Sachs struts, inner clearance between strut and wheel/tire is slightly diminished. This really does not come into play with slimmer wheel widths, but 9" wheels are wide enough to the point where all the fine details matter. As described, whether or not small spacers are needed will come down to tire size and brand since not all are created equal.

What tire size and brand do you plan to run? Is this a car enjoyed on the street only, or will it see track time?

For track enthusiasts, adjustable camber plates are the better solution for dialing in negative camber. While camber/crash bolts are cheap, they do not have a broad adjustment range and they compromise inner clearance where space is already pretty tight.

Depending on the wheel and tire setup and the driver's goals and intended use, camber/crash bolts may make sense in some scenarios. With that said, if the driver at hand is investing in wheels, tires and a track alignment with the intention of optimizing performance (grip, turn-in, etc.) and tire longevity on track, it makes a lot of sense to spend a little more money on adjustable plates. You'll get a quick ROI in the form of tire longevity after a handful of track days.

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Originally Posted by churchx View Post
@APEX Race Parts: if you do that 3d scanning to ensure your wheel clearance .. may i ask for two things that imho twins owners community may greatly benefit from?
- can you also scan non-PP stock brakes?
- can you release brake clearance fitment templates for both stock PP and for generic stock brakes?
Most aftermarket brake vendors provide downloadable brake templates for their BBKs .. unfortunatly no such for stock brakes though even they are more numerous and their owners also would benefit from easier/quicker wheel check way (eg. with stock brakes if one wishes to check some R15 for winter use clearance).
You are absolutely correct. When we develop new fitments for a specific chassis, one of the first things we do is research brake clearances to ensure our wheels are designed from the ground up to clear stock brakes (including upgrades available from the factory like PP Brembo) and a wide variety of popular aftermarket BBK's (Essex AP, Brembo, StopTech, etc.). When discussing the topic of brake clearance most immediately think of large brakes being problematic, however, small rotors position the caliper closer to the center of the wheel where spoke clearance is typically the tightest, so it is imperative to take all brakes applicable to a given chassis into consideration during the wheel design phase.

The three aftermarket brake manufacturers I mentioned above make it really easy, as they all have templates available online to download. When it comes to original brake equipment from the manufacturer (even if they source a from a supplier like Brembo), 2D templates are not released/available.

This, in addition to suspension related data, is precisely why we take things a step further and conduct 3D scanning sessions. Needless to say, these scans are expensive when you factor in the equipment used and all of the associated logistical costs with donor vehicles, etc. While it would be nice to share the templates with the community, it would also result in handing over valuable data to wheel manufacturers that have chosen not to invest in development to the same degree.

This data will result in our ability to create better wheel solutions for 86/BRZ enthusiasts, and the brake clearance information will be available in our chassis-specific fitment guides.


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Originally Posted by Will BRZ View Post
@APEX Race Parts This is awesome. What sizes and wheel models are you testing for? I’ve always loved the rest of your lineup. When can we expect them to be released?
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Originally Posted by jflogerzi View Post
Can't wait to see new wheel desgins. You guys have won my business next wheel purchase.

Sent from my GM1915 using Tapatalk
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Originally Posted by Will BRZ View Post
Me too. Really eyeing the FL-5 or maybe the EC-7s. Got new tires on stockers last month so I’m good for a bit while they design the new ones. Excited
We really appreciate the support. We will have more concrete information very soon.

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Originally Posted by timurrrr View Post
I wonder if you should also scan the same setup but with camber bolts giving something around -1.5...-2 in the front, as this seems to be a popular mod among drivers who want negative camber in the front but not ready to spend significant money on coilovers.
If an enthusiast is set on running camber bolts with the stock suspension rather than adjustable camber plates, a 9" wheel will typically need to have an offset around ET35 - 38 depending on the tire size and brand at hand, and whether it is the PP with Sach struts or not.

- Ryan
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Old 02-19-2020, 07:01 PM   #114
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Quote:
Originally Posted by APEX Race Parts View Post
Thank you for your recent participation in the GB. I'm happy to help provide more clarity and guidance in regards to your specific setup.

Since the PP Sachs struts have a slightly larger silhouette in comparison to the non-Sachs struts, inner clearance between strut and wheel/tire is slightly diminished. This really does not come into play with slimmer wheel widths, but 9" wheels are wide enough to the point where all the fine details matter. As described, whether or not small spacers are needed will come down to tire size and brand since not all are created equal.

What tire size and brand do you plan to run? Is this a car enjoyed on the street only, or will it see track time?

For track enthusiasts, adjustable camber plates are the better solution for dialing in negative camber. While camber/crash bolts are cheap, they do not have a broad adjustment range and they compromise inner clearance where space is already pretty tight.

Depending on the wheel and tire setup and the driver's goals and intended use, camber/crash bolts may make sense in some scenarios. With that said, if the driver at hand is investing in wheels, tires and a track alignment with the intention of optimizing performance (grip, turn-in, etc.) and tire longevity on track, it makes a lot of sense to spend a little more money on adjustable plates. You'll get a quick ROI in the form of tire longevity after a handful of track days.
- Ryan

I plan on tracking the vehicle and right now I am aiming at 245/40-17 Kumho V720's. I will also be getting camber plates.
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Old 02-20-2020, 05:49 PM   #115
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I plan on tracking the vehicle and right now I am aiming at 245/40-17 Kumho V720's. I will also be getting camber plates.
Between in-house testing and customer feedback, we're constantly compiling data on 245 tire clearances against the front Sachs struts with these wheel specs. Unfortunately, at this time I do not have the 245/40-17 Kumho V720's on that list to be able to confirm or deny.

As a reference, 245 tires that run wider than your average street tire (most extreme summer tires, r-compounds, and semi-slicks) will almost always require small 5mm spacers to clear unless aftermarket coilovers are installed.

Adjustable camber plates are a great call for the reasons previously mentioned.

- Ryan
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Old Yesterday, 01:04 PM   #116
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What lug nuts/wheel studs are you guys running? My group buy set will be here soon and I'm trying to get my ducks in a row. I really like the look of the longer lug nuts (closed-ended) but I'm curious if I need extended studs to run them. Or is the extended stud just a stylistic thing for those wanting to run longer open-ended lug nuts?

Another question; I drive a 2014 BRZ on stock suspension, will I have an issue running 245's?
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Old Yesterday, 02:29 PM   #117
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Those 17x10 coming soon?
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Old Yesterday, 06:40 PM   #118
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Those 17x10 coming soon?
Most important question of 2020 right here.

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