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2007 coilover/lowering question

 
Old 12-17-2018, 12:11 PM
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Originally Posted by Manga_Spawn View Post
Correct. They are 2 totally separate mods that don't effect one another.
Thanks for confirming! I was thinking the same too.

So, are the Bilsteins better than stock AP1 dampers/springs for light track duties if the car will be a street car for 90% of the time?

Or are the Bilsteins for looks only?
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Old 12-17-2018, 01:07 PM
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Bilstein is a superior shock to your worn ap1 stuff.

If it was brand new ap1 suspension (if you have a super low miles car or bought super low mile used shocks), it might be argued that although superior, it might not be worth the expense for street use. You could just get good quality lowering springs.

But since your shocks are probably not in new shape, Bilstein would be an excellent choice.

The Ohlins actually ride better on street (and of course perform better on track) than the Bilsteins. If you have the cash, they are superior in all aspects (except for longevity. If you will rack up lots of street miles, stay with the Bilsteins, unless you also don't mind the expense and downtime involved in frequent rebuilds).

Lowering one inch won't require any radical fender rolling or special alignment components. You will end up wearing out your axle cups faster, so when they eventually start complaining, rotate the axle cups left and right. Then once they complain again, get axle spacers. Then you can get one more rotation with the spacers.
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Old 12-17-2018, 01:18 PM
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I love my Ohlin's and if the cost difference isn't an issue I would do Ohlins. Car I haven't really seen anything about frequent rebuilds with the ohlins have you? I know KW's need rebuilds pretty regularly. Even if you have to rebuild them occasionally I would still go with the Ohlins but for the money the Billsteins are a solid choice.
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Old 12-17-2018, 01:33 PM
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Originally Posted by Say Chi Sin Lo View Post
Are the Bilstein better than stock (AP1) for the track? I'm interested as well and my car will see very minimum track days, I just won't get the stickiest tires.

Would the Ohlins be considered as jarring/overkill on the streets? (They also seem to be x2 expensive!)

Thanks!
yes, the pss9 are still better than factory. Off the shelf Ohlins aren't jarring- they come with 10k front, 8k rear spring rates. Not exactly soft, but not jarring either- unless local roadways are rough. The Bilsteins are better suited for street (softer rate) and are cheaper, plus there is no preload, so install is easier. Most don't know how to properly set preload, which results in less than optimal handling. If you went the route of Bilstein now and did decide you wanted stiffer later, sending them to Fat Cat Motorsports for a revalve paired with new springs will net you a better setup than ots Ohlins.
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Old 12-17-2018, 01:41 PM
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Originally Posted by Manga_Spawn View Post
Pictures of the inside of an AP2V2 wheel there and you can clearly see there is indents. Maybe check your wheels?
IIRC, those indents are only sufficient depth when running 20-25mm spacers. Fairly certain 25mm requires a roll- maybe even 20mm. The factory indents are fairly useless.
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Old 12-17-2018, 02:15 PM
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Originally Posted by Car Analogy View Post
Bilstein is a superior shock to your worn ap1 stuff.

If it was brand new ap1 suspension (if you have a super low miles car or bought super low mile used shocks), it might be argued that although superior, it might not be worth the expense for street use. You could just get good quality lowering springs.

But since your shocks are probably not in new shape, Bilstein would be an excellent choice.

The Ohlins actually ride better on street (and of course perform better on track) than the Bilsteins. If you have the cash, they are superior in all aspects (except for longevity. If you will rack up lots of street miles, stay with the Bilsteins, unless you also don't mind the expense and downtime involved in frequent rebuilds).

Lowering one inch won't require any radical fender rolling or special alignment components. You will end up wearing out your axle cups faster, so when they eventually start complaining, rotate the axle cups left and right. Then once they complain again, get axle spacers. Then you can get one more rotation with the spacers.
What's involved in rebuilding them? Do they have to be sent back to Ohlins?
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Old 12-17-2018, 07:04 PM
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Originally Posted by Manga_Spawn View Post
I love my Ohlin's and if the cost difference isn't an issue I would do Ohlins. Car I haven't really seen anything about frequent rebuilds with the ohlins have you? I know KW's need rebuilds pretty regularly. Even if you have to rebuild them occasionally I would still go with the Ohlins but for the money the Billsteins are a solid choice.
I can speak a little about KW's rebuilding process, outcome, and overall quality of the rebuilt coilovers. Granted, it was on a different car, but I think it applies to KW and their general craftsmanship.

Mazda contracted KW to build a set of V3 with specific spring rates and dampening force specific for the Mazdaspeed 3, these V3 were rebranded as "Mazdaspeed Accessory Coilovers"



I purchased a used set and put them on my Mazdaspeed 3. Unfortunately, shortly after I installed them, they had to be rebuilt.

- Contact KW support / [email protected]
- Fill out the tech sheet to your desire
- Ship your damaged dampers in. They asked for the dampers only as the shipping will cost less, and there are less parts for them to lose.
- Depending on your location, takes about a few days to get to their USA headquarters, in Southern California.
- They kept me updated on the rebuild process, and will promptly answer any inquiry along the way.
- My rebuild took ~1.5 weeks, round trip shipping... so the whole process took about 3 weeks.

Here's an example of the tech sheet they'd ask you to fill out:


At the time, my car had 64,000 miles. It's approaching 5 years and 43,000 miles since the rebuild, and I have had zero issues. Car currently has ~107,000 miles. This car is daily driven on the streets of San Francisco, with its expansive collection of bad roads and pot holes!






I believe the rebuild process should be similar with other major manufacturers, and they should be equally competent as well!
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Old 12-17-2018, 07:19 PM
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Originally Posted by BootsS2K View Post
What's involved in rebuilding them? Do they have to be sent back to Ohlins?
I am nearly positive you'd have to send back the damaged dampers. Also, the cost of shipping will most likely fall on you as well. Just a heads up.
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Old 12-17-2018, 07:23 PM
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Originally Posted by dc2-2-ap1 View Post

yes, the pss9 are still better than factory. Off the shelf Ohlins aren't jarring- they come with 10k front, 8k rear spring rates. Not exactly soft, but not jarring either- unless local roadways are rough. The Bilsteins are better suited for street (softer rate) and are cheaper, plus there is no preload, so install is easier. Most don't know how to properly set preload, which results in less than optimal handling. If you went the route of Bilstein now and did decide you wanted stiffer later, sending them to Fat Cat Motorsports for a revalve paired with new springs will net you a better setup than ots Ohlins.
That's great to know! Ohlins are definitely a bit over my budget. Looks like the Bilstein PSS9 is a great option for a minimally tracked S2000!
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Old 12-18-2018, 09:51 AM
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There is plenty of suspension shops that can rebuild ohlins for you. You don't need to send them back to ohlins unless it is for warranty work.
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