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BMR + Bilstein HD's

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Old 06-02-2013, 01:16 PM
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Originally Posted by Coppertone
Right now with Koni's on the lower perch with stock springs I am feeling every pebble, bump, seam, and bump on the roads.... (Brand new Michelin Pilot Super Sport tires)

I can't stand it. I'm disgusted every time I drive the car.
alot of people that that feel. others dont.

i cant say i was ever disgusted or didnt like the ride bc of those things with this combo. plus my car has upgraded sway bars/ poly bushing/ 9inch/ iron block/ fully adjustable rear susp. so with that counted for it drove really well. i mean its not like a benz or jag lol

what size tires you running? i know alot of people run these really low profile tires that give a harsh ride.
Old 06-02-2013, 01:21 PM
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275/35/18 up front, 285/35/18 out back

Maybe it'll soften up after a while? I have about 2,000 miles on the koni's.
Old 06-02-2013, 01:26 PM
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might as well wait it out and see how it goes since there installed already. are your shocks adjustable??
Old 06-02-2013, 01:29 PM
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Yea they're single adjustable. Only the rebound is adjustable so that won't help with the jarring.
Old 06-02-2013, 01:40 PM
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you know anyone near you that has Bilsteins shocks you can ride in to compare?
Old 06-02-2013, 01:41 PM
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No, I don't. :/ That's why I've been asking you guys.
Old 06-02-2013, 01:44 PM
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understandable but we can only give out so much info and like i said everyone is diff in how they like there car to feel. it would just suck for you to buy new stuff and then install it and not be want you want still.

do you still have your 17inch rims? if so you should swap them on and go for a ride to see if it makes a diff
Old 06-02-2013, 02:10 PM
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1800 out of those 2000 miles were on the 17's.
Old 06-02-2013, 02:15 PM
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idk what to tell you then lol

get a set and install them with your bmr springs and see if that works for you, if it does then sell the konis. think ws6store has the Bilsteins for 350-380 give or take. if i remember right its free shipping anything over $100 bucks as well.

Last edited by Blackbird-WS6; 06-02-2013 at 02:26 PM.
Old 06-02-2013, 02:25 PM
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Yea, that's my next step.
Old 06-02-2013, 02:54 PM
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Since installing my Koni's I've always maintained - often in the face of much disagreement and criticism - that they had much greater impact harshness than the Bilsteins I had on previously. I was shocked by the difference.

The good news is that it gets better with time and mileage. I've had mine on for 5 years and 50k and they're great. But Bilsteins give that supple ride right out the box.

IMO the best bet with Bilsteins for lowering the front to match HH mod in the rear is to cut the front springs .75" to 1." Did that on my 01 T/A with no negative impact on the ride.
Old 06-02-2013, 02:57 PM
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he shouldnt need to cut anything, he has bmr springs waiting to be installed.
Old 06-02-2013, 03:01 PM
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Originally Posted by Coppertone
Yea, that's my next step.
Oh, and if you're going to try the Bilsteins, I'd just do the fronts initially. In my experience, there's not as much difference in the rear. My M6 car has Bilstein front, Koni rear, and it works fine; the Konis being slightly stiffer and having quicker rebound.
Old 06-02-2013, 03:07 PM
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Originally Posted by Blackbird-WS6
he shouldnt need to cut anything, he has bmr springs waiting to be installed.
I didn't say he needs to do anything; I simply shared my experience. But regarding the BMR's: it's a fact that Bilstein recommended against using HD's with lowering springs; they're simply not made to handle the increased spring rate.
Old 06-02-2013, 03:13 PM
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Originally Posted by RevGTO
it's a fact that Bilstein recommended against using HD's with lowering springs; they're simply not made to handle the increased spring rate.
i disagree with that but to each there own.
Old 06-02-2013, 03:25 PM
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Well that's good news that each bump should not be as harsh as the last if the Konis "wear in " a little bit. Because the front is a little bit higher than I'd like (reverse rake), I'm prob gonna swap in the the BMR springs all around, add the isolators back in on the rear, and try to be patient while the koni's ease up with time.
Old 06-02-2013, 04:01 PM
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Originally Posted by Blackbird-WS6
i disagree with that but to each there own.
Not to be argumentative, but several years ago somebody posted up a photo of a page from Bilstein's retailer catalog, and it was stated there in black and white - proof positive.

That being said, some users' experience has been that the Bilsteins work acceptably with such springs, but tend to wear and get loose faster, as they are not calibrated for them.
Old 06-02-2013, 04:03 PM
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Originally Posted by RevGTO
Not to be argumentative, but several years ago somebody posted up a photo of a page from Bilstein's retailer catalog, and it was stated there in black and white - proof positive.

That being said, some users' experience has been that the Bilsteins work acceptably with such springs, but tend to wear and get loose faster, as they are not calibrated for them.
i have 40-50k on mine, no problems.



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