02-21-2018, 11:56 AM | #3515 | |
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Thanks Andrew! I tried to find out the TRD spring rates but the best I could find was 3.5/5.8 Should I Shoot for this ratio on the coilovers say 4.8/8 for example or am I comparing apples to oranges. I would think that stiffer springs on the front would not help understeer tendencies on the FRS My biggest fear is going backwards by upgrading to coil overs.! |
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The Following 2 Users Say Thank You to rick s For This Useful Post: | Racecomp Engineering (02-21-2018), Shark_Bait88 (02-21-2018) |
02-21-2018, 12:57 PM | #3516 | |
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There is to some extent some driver preference but you'll have to spend some time dialing in all of the variables....ride height, alignment, shock settings, swaybars, and spring rates. The 7/7 or 7/8 are popular starting points for springs in STX, but there are plenty of other ways to go too. - Andrew |
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The Following User Says Thank You to Racecomp Engineering For This Useful Post: | rick s (02-21-2018) |
02-21-2018, 01:01 PM | #3517 | |
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Buuuutt...I like to tinker too. Swaybars would reduce body roll and you may be able to reduce your negative camber slightly. Keep in mind most front + rear swaybar sets will increase front roll resistance more than rear due to the motion ratio of the swaybars. So you may have to fiddle with the alignment to get things just the way you want them. - Andrew |
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02-22-2018, 01:19 AM | #3518 |
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This likely to be a stupid question, but when you set the front negative camber, is there any thought to compensating for the weight of the driver or whether you have to compensate for right or left hand turns. What I mean by that is, I think some people are more likely to take more speed into a left hand turn as a posed to a right hand turn while daily driving.
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02-22-2018, 02:38 AM | #3519 |
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FLYFISHR: if one is being very pedantic, then yes, very "ideal" alignment for specific use/location/track may take into account of there being or not passenger, of track being clockwise or counter-clockwise. Then there also is corner balancing/alignment if one has height adjustable coilovers. But imho these tweaks are into category of where one can spend 90% of time for 10% of gain, so unless it's for highly-competitive racing where every slight extra advantage counts, i wouldn't bother. If anything, you may ask to deal alignment while you are sitting in car.
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The Following User Says Thank You to churchx For This Useful Post: | FLYFISHR (02-22-2018) |
02-22-2018, 02:45 PM | #3520 |
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Would you guys recommend your Tarmac springs be paired with the Bilstein B6 or B8? I've seen reviews of people who have gone either way with good results.
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02-22-2018, 02:59 PM | #3521 |
02-22-2018, 03:43 PM | #3522 |
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FWIW, I spoke with someone at Bilstein about this and they said B6 is preferable, but both would work fine.
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The Following User Says Thank You to Pat For This Useful Post: | Racecomp Engineering (02-22-2018) |
02-23-2018, 11:10 PM | #3524 |
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I think there is just a longer shaft, which allows for more droop travel. Andrew would probably be able to confirm or deny this.
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02-23-2018, 11:51 PM | #3525 | |
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As far as changing the alignment from left to right, that depends on the specific track and driver. You usually figure this out by measuring tire temperatures, but if you were on, say, an oval track, obviously you would want more negative camber on the outside wheels. Last edited by jamal; 02-24-2018 at 12:51 AM. |
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The Following User Says Thank You to jamal For This Useful Post: | FLYFISHR (02-24-2018) |
02-24-2018, 12:21 AM | #3526 | |
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B8 offers less droop travel which can help short springs stay under pressure when the car is lifted off the ground but offer no other advantages. With some google-fu you can find the specs someone posted on this forum. |
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02-24-2018, 03:27 PM | #3527 |
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Interesting. When I spoke with someone at Bilstein USA tech support about a year and a half ago about which shock to get for RCE Tarmac springs, he told me the exact opposite. I told him the RCE's spring rates and expected drop. In fact he was quite insistent that, for any spring that is shorter than OEM length, I should get the B8s. So that's what I did.
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02-24-2018, 04:11 PM | #3528 | |
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