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Suspension | Chassis | Brakes -- Sponsored by 949 Racing Relating to suspension, chassis, and brakes. Sponsored by 949 Racing. |
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01-06-2020, 09:09 PM | #15 | ||||||
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But would be nice to be able to use springs that fit the B14 lower perches and Raceseng stock-spring-diameter upper perches. Though it might make sense to just purchase smaller-diameter Raceseng upper perches in order to open up spring options. Quote:
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01-07-2020, 03:50 AM | #16 |
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I'm 3rd-ing Andy's B14 recommendation. The right features, proven durability and quality, extremely serviceable and parts that are designed to fit if you want to revalve or upgrade.
I've been trying to scavenge some used shocks to dissect and rebuild, these are on the top my my list. lol There are not as many of them out there. I have seen a set of these Bilsteins tricked out with MDS double adjustable shafts and raceng tops up for sale IIRC. pretty slick set up.
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cowardice is the mother of cruelty. Last edited by solidONE; 01-07-2020 at 04:36 AM. |
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01-07-2020, 02:00 PM | #17 | |
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- Andrew |
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01-07-2020, 03:35 PM | #18 |
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I don't mean to derail this thread but something caught my attention.
I am looking at Raceseng CasCam plates for a stock Sachs PP setup. Is it true that those plates will reduce bump travel on a stock suspension? Is it enough to be a concern? I could easily see myself keeping the suspension stock and tracking with 200tw tires. This would already lead to more roll and dive than desired so less stroke would make this worse, I expect. |
01-07-2020, 04:15 PM | #19 | |
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Somebody should make longer front control arms... |
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01-07-2020, 06:25 PM | #20 | |
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https://www.splparts.com/products/fr...-brz-ft86.html |
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01-08-2020, 08:32 AM | #21 |
The Cusco ones probably get your more width. I may get them for my own car soon.
- Andrew Last edited by Racecomp Engineering; 01-08-2020 at 10:35 AM. |
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01-08-2020, 08:33 AM | #22 | |
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01-08-2020, 08:51 AM | #23 |
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No experience with sachs, but there were NVH issues with cascams & kouki stock OEM shocks, with some sharper movements sounding like loud hits almost as if something will break. Bad enough to decide to revert to rubber mounts and gain camber with other means. That is NVH issue though, not travel related one.
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01-09-2020, 01:08 AM | #24 | |
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To be honest, I hadn't thought about this until now. I have that exact setup - 17 Sachs with RS CasCam plates. I've been tracking on 200tw for the last year. Theoretically, you would be losing a little bit of travel because a portion of the shock shaft "hides" inside the spring perch bearing and can no longer be used for bump stroke. That being said, I also use a 22mm bar up front to help with some extra roll stiffness. I've yet to get into a situation with my setup where I've felt the front is severely running out of travel. It does make me curious to look at where my front bump stop is sitting in relation to my end of travel.
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01-09-2020, 01:14 AM | #25 | |
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I have the Cusco arms myself and I'm very happy with them. I think the fact that they use a stiffer, but still rubber, bushing is an important consideration for a lot of people. I had HardRace arms before which had sphericals. Those, combined with my RS CasCam plates, the front became fully hard mounted and the NVH on the street was really a bit much for me.
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01-09-2020, 02:18 PM | #26 | |
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I added a 1/4" spacer between spring and upper perch to get to 1.25" lower all around, which helped but still I think I need about another 1/2" of bump travel. Where I'm at, that lost bump travel is critical. At stock height I'm sure it's no big deal. |
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01-09-2020, 02:21 PM | #27 |
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The lotus world has a non adjustable penske offering for under 2500. If they ever happened to the twins, I'd be first in line.
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01-09-2020, 02:42 PM | #28 |
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There is one major thing about many of these beautiful aluminum motorsport level shocks besides valving options and the obvious cost difference, and that's the required service intervals. I'm not sure what exactly it is, but they have the tendency to need to be serviced much more frequently and the seals don't seem to be as robust. I'm sure some brands might be better in that department than others, but Penske seems to be more delicate. Maybe the high internal pressures an low drag seals aren't the best for longevity. Who knows?
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