02-19-2020, 03:44 PM | #113 | ||||||
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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. Quote:
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. Quote:
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- Ryan
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02-19-2020, 06:01 PM | #114 | |
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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. |
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02-20-2020, 04:49 PM | #115 | |
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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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02-25-2020, 12:04 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? |
02-25-2020, 01:29 PM | #117 |
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Those 17x10 coming soon?
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02-25-2020, 05:40 PM | #118 |
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Most important question of 2020 right here.
X2
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2022 Hyundai Elantra N 6MT SCCA TT S3//Will be back in an 86 eventually
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03-07-2020, 06:46 PM | #119 |
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Satin Black Apex ARC-8s - Dark Gray BRZ PP
Satin black ARC-8s on my Dark Gray PP BRZ. I participated in the most recent group buy to get my hands on these, and I couldn't be happier. This is exactly the look I was gunning for! Getting $150 off and free shipping was a cherry on top.
Satin Black ARC-8 17x9 245/40/r17 Continental Control Contact Sport SRS tires Eibach Pro Kit springs - otherwise stock suspension Factory performance package Brembos & Sachs Dampers |
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03-08-2020, 08:03 PM | #120 | |
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03-09-2020, 02:28 PM | #121 |
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Neither actually! Put the ARC-8s on right after we installed the eibach springs, so I have yet to get an alignment done (I'm sure it needs one). But as is clears the stock struts just fine, haven't felt any rubbing.
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03-09-2020, 02:57 PM | #122 | |
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Enjoy the wheels! (and prepare for the Brembo dust) |
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03-09-2020, 08:49 PM | #123 | |
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03-10-2020, 11:13 PM | #124 | |
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Our 86/BRZ wheels are made to be very user-friendly, and I've included some notes below.
- Ryan
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Last edited by APEX Race Parts; 03-10-2020 at 11:34 PM. |
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03-10-2020, 11:33 PM | #125 |
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The guys in the Engineering department are telling me that we are just weeks away from being able to launch a community Group Buy for all of the new 17" & 18" wheel solutions we have in the works.
With that said, the widest fitments we currently have designed for this release are 17x9.5" and 18x9.5". For 17" wheels, the widest compounds we see track enthusiasts and racers using are 255/40-17's. In 18's, we see both 255/35-18 and 265/35-18. All of these compounds are well supported by a 9.5" wheel to promote good wear and handling characteristics, and weight is kept to a minimum. As you guys know, with the right aftermarket coilovers and negative camber specs, 9.5" wheels are a relatively easy fit. Edit: I'd love to hear from the guys requesting 10" wheels in regards to what the perceived value is. If the demand is there we can certainly add it to the lineup, but I believe wheels this wide only make sense for high HP cars with flares or widebody kits looking to run 275mm or wider compounds. - Ryan
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Last edited by APEX Race Parts; 03-11-2020 at 07:36 PM. |
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03-11-2020, 10:57 PM | #126 | |
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As far as the 10 inch wheel setup goes, I'll give a shot. In the Miata world, there's been a ton of data that suggests that a 245/40/15 tire on a 10 inch wheel is significantly faster than a 245/40/15 on a 9 inch wheel, even in low power setups where an increase in rotational mass (and aero footprint) would have an otherwise negative effect. The consensus is that with a wider wheel, you can artificially stiffen up the sidewall of a tire (to an extent). This allows the user to reduce tire pressures more without encountering tire rollover. Decreasing tire pressure has a couple benefits, the most obvious being an increase in area. Since pressure = load/area, a decrease in pressure while the load remains the same, nets a higher area. Additionally, as tire pressure increases, it's resistance to frictional shearing decreases. For that reason, it's beneficial to reduce the pressure to promote elastic deformation over the road instead of shearing. That's the science from what I understand. Admittedly, I'm not a vehicle dynamics engineer but that's what I picked up. Obviously the question is whether the .5" increase is worth extra fitment hassle (maybe it won't fit under stock fenders), and for you guys the question is "is there enough crazy track guys to justify making 17x10's?" That one I don't know the answer to
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2022 Hyundai Elantra N 6MT SCCA TT S3//Will be back in an 86 eventually
Last edited by Goingnowherefast; 03-12-2020 at 08:22 AM. |
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