I've driven half way cross the country with 700/400 even with the wife in the car and I drive them regualarly on the street too. Revalved Koni sports with extended travel shock tops. I also have ISC sway bars. the car is suprisingly comfy on the street and you had better be a hell of a driver and bring some pretty dam good hardware to beat me on the track as well.
Bob |
Originally Posted by Braineack
(Post 633847)
my problem is turn in right now. It feel very neutral and I can stomp the gas around corners, but, when i want to turn the wheel fast and induce oversteer for a quick u-turn or something it just plows. this could be partly due to my lack of an alignment, but without my rear bar I really lost the turn-in response.
when I had FM springs and no rear bar I didn't notice this as much, so I think bringing the FRC back down a little should solve it still without being tail happy in other situations. I actually got to play on a skid pad with and without the rear bar on and the difference is significant. |
how many of you are running spring rates within the limits of stock koni yellows?
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Originally Posted by customstreetmachines
(Post 634184)
how many of you are running spring rates within the limits of stock koni yellows?
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Originally Posted by ScottFW
(Post 634428)
Stock yellows, 450/300. Car handles great for such an inexpensive setup. I will eventually move to higher rates with r-comps, but this is a good compromise street/track setup if you want to just arrive & drive on street tires.
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Originally Posted by customstreetmachines
(Post 634452)
I hope 7" was the right length.
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i ran 550/300 in 7" it works.
stock rear sway definitely helped, still feels the same on high speed, but in low-speed tight corners the weight transfers much better. |
great, can't wait for my springs to come in.
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Originally Posted by customstreetmachines
(Post 634024)
from what I can gather on the fat cat calculator abs feedback I'm getting is that in a sense, FRC is neutral at 50%.
No, that would be super tail happy. It all depends on the driver but you want to stay in the 56-60 range, do more research. |
got my 450/300 springs and put it all together. I'm pleasantly surprised that the koni's at full soft, ride much smoother than stock. car feels neutral for The most part and a hair loose powering off the corner, although I'll be adding sways soon to dial that in and raise the FRC a bit. immediately increased my twisty road test track by 10mph, without an alignment. happy camper
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There is no way that the Konis on full soft are properly damping those spring rates. Start experimenting with cranking them up and it should improve handling and ride quality. Find a road with some speed humps and hit them at 15-20 mph. If the car bounces more than 1 rebound event after coming down off the hump, it can use more damping. It's been a while since I did mine but I think I'm around 1.5 turns in the front and 1 in the back with those same spring rates.
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That was just the first run. I have it at 2 turns front and 1-1/2 rear. I'm getting an alignment tomorrow and I'll do some more tinkering after that.
I'm running stock tophats in front and a 2-1/2" spring which doesn't exactly seat on the hat. Is everyone running spring isolators or is it not a problem? |
My front tophats are some custom made units that don't have any kind of spring isolators. Not sure if that caused the clunking I heard on the first drive after installation, but it hasn't done it since, and the springs aren't moving around at all.
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Originally Posted by ScottFW
(Post 641316)
There is no way that the Konis on full soft are properly damping those spring rates. Start experimenting with cranking them up and it should improve handling and ride quality. Find a road with some speed humps and hit them at 15-20 mph. If the car bounces more than 1 rebound event after coming down off the hump, it can use more damping. It's been a while since I did mine but I think I'm around 1.5 turns in the front and 1 in the back with those same spring rates.
I have mine at full soft with 400/250. If i increase rebound the ride quality gets worse. But it could be that they are 2011 years old now and leak at the adjusters and are just plain dead. |
Originally Posted by customstreetmachines
(Post 641323)
I'm running stock tophats in front and a 2-1/2" spring which doesn't exactly seat on the hat. Is everyone running spring isolators or is it not a problem?
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btw, stock 1.6 springs on Bilstein HD's with FM rear mounts and front NB mounts from FCM are awesome for daily Cadillac surfing.
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cool, my springs haven't moved in the hat so far, but I haven't pushed the new system yet. unless I get some clunky noise, I'll let it be. the FM rear mounts seem fine and way to pretty to hide in the trunk.
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Out of curiosity, do the FM rear hats impinge on the spare tire space (lame, I know). I'm running ISC rear hats and they are tall enough that the spare tire can't be centered and screwed down normally.
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No, the FM rear mounts are still tucked under the access hole. Mine were free and since I don't care about the rear pillow ball I would have done the ISC ones since they're cheaper.
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iscracing tophats only make sense if you're running < 11" ride height.
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