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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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View Poll Results: Which is your pick?
Moton 5 15.63%
Sachs 4 12.50%
AST 3 9.38%
JRZ 13 40.63%
MCS 7 21.88%
Voters: 32. You may not vote on this poll

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Old 08-29-2014, 05:13 PM   #85
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I still don't know your driving experience, and what your obcession is with comparing the car to a Carrera and Cayman...

Do you actually have any experience at the track?
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Old 08-29-2014, 05:40 PM   #86
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Springs are typically specified by spring rates only. In other words, the amount of force necessary to compress a given spring a given distance. Different brand (and even model in some cases) respond to the initial impulse differently, and while the spring rate may be the same, the rate of response is not. For example, a 1000lb/in hyperco and 1000lb/in swift spring will both take the same amount of force to compress one inch, but the amount of time they take to react to the force and compress that one inch is different. We're talking fractions of a second, but when it comes to dampers, this is a significant amount. To put it in perspective, if you drive over a small bump at 70mph, how much time does it take for your suspension to compress and decompress as it goes over that bump? A tiny fraction of a second.

When we custom valve dampers, we have to account for the specific spring being used to properly match the damper curves to the spring. A lot of vendors offer "spring upgrades" to less expensive dampers, without actually knowing if the dampers match the spring upgrades well. Sometimes they get lucky and the combination happens to work well, and other times they're not.
Interesting... Maybe I worded my question poorly, but I'm curious what the difference is between the two. As in, do the swift spring tend to react quicker to load changes or slower or some other way? That difference does not sound insignificant, the way you guys are describing. I'm guessing this would impact how the high speed damping would have to be valved. (Wild guess) would this deference will be apparent regardless of how much it is compressed?

Has anybody documented this difference. Maybe a link to someone talking about this?
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Old 08-29-2014, 05:50 PM   #87
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Yes it would. Now your aero balance would be heavily understeer biased. (Rear wing?) If you only added a front lip spoiler, then you've be a bit oversteer biased, depending on model. Experience will affect how much this is weighted into a recommendation.
Yes..but idk if slight under/over bias from marginal aero still would change CO selection. More spring rate selection sounds like.

Experience? Just a couple times, rarely and haven't been much since the 90s. Mostly tagging along with friends who competed in shifter karts in the late 90s and random trips with bone stock street cars until I became less interested, moved on, while they continued to pursue their professional racing and bigger indy type cars.
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Old 08-29-2014, 06:03 PM   #88
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My "stock" cars back then were very lightly modified (only coilovers or upgraded springs/shocks) CRX Si, Del Sol DOHC and SW20.
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Old 08-29-2014, 06:06 PM   #89
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Interesting... Maybe I worded my question poorly, but I'm curious what the difference is between the two. As in, do the swift spring tend to react quicker to load changes or slower or some other way? That difference does not sound insignificant, the way you guys are describing. I'm guessing this would impact how the high speed damping would have to be valved. (Wild guess) would this deference will be apparent regardless of how much it is compressed?

Has anybody documented this difference. Maybe a link to someone talking about this?
The rate of reaction to a given force is the difference.

I don't think there's any documentation I can publicly post... sorry
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Old 08-29-2014, 06:12 PM   #90
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Why are the single adj MCS, AST, JRZ not recommended though?

Is it because they are too much for what you get(only 1way)? (As compared to a 2way SRC or V3 or T2 for a similar price)?
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Old 08-29-2014, 07:08 PM   #91
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Why are the single adj MCS, AST, JRZ not recommended though?

Is it because they are too much for what you get(only 1way)? (As compared to a 2way SRC or V3 or T2 for a similar price)?
http://www.ft86club.com/forums/showp...6&postcount=75
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Old 08-29-2014, 09:53 PM   #92
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Old 08-29-2014, 10:47 PM   #93
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Girls rule!
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Old 08-30-2014, 12:09 AM   #94
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I really like JRZ RS1. More than JRZ RS. It is tough to compare to a 2 way and there some cases where I'd prefer the 2 way. But for me, its JRZ RS1, if they're properly valved from the start.

- Andy
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Old 11-15-2014, 07:08 PM   #95
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Probably not my place for my input, as there are many more experienced individuals here that have already answered.

If it was me, I would just go for Bilstein B16 with Camber plates. It is under $3000, and is similar in construction to Ohlins and Sachs (inverted monotube, 1 adjuster)

Is it the BEST suspension, that depends. A properly set up suspension would be the BEST suspension even if the suspension is STOCK

One way adjusters is the way go unless you know how to match spring rates, then 2 way adjustable coilovers may be for you.
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Old 11-15-2014, 08:32 PM   #96
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Penske Shocks can custom make some 7500 series for *around* $3000. Add another $250 for Hyperco springs.
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