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H&R Sport Springs on '90 LS400

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Old 10-25-07, 05:23 PM
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Nataphen
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Default H&R Sport Springs on '90 LS400

Just wondering if these work OK for our cars. I wanted to drop the car just a tad and replace the 15s with 18s to freshen up the look a little. I don't really want all out performance, or else I would already know that coil-overs are the way to go. I just want a little better stance.

My car has standard shocks, no the ride control or height adjustment, if that makes a difference for these springs.


Nate
Old 10-25-07, 05:26 PM
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LiCelsior
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my car rides good with the h&r springs, only the big bumps i can feel.
Old 10-25-07, 05:30 PM
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Nataphen
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I would expect a slightly firmer ride, but that's OK with me. One of the main reasons that I like this car over some of the other comparable luxury cars is that it feels so well planted and doesn't "float" around corners and over bumps. I've taken it up and down a couple of twisty roads and I was very impressed for a car that size and that age. Thanks for the quick reply! Would you reuse the stock iso's, or is there a better brand to switch to at that time?
Old 10-25-07, 06:43 PM
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trukn1
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Nat,
I am currently on these springs on my 92 and have been for over a year. The ride will firm up a little more than stock but other than that, no problems. I would advise changing your shocks also, dropping the car on stock shocks does not hurt any, however you will wear them out a little quicker. My setup is KYB-GR2's and H&R springs. With the 18' rims, you can run a 40 profile tire with plenty of rubber to protect the rims. I would also advise changing the bushings for a more sporty ride as well. If you just trying to keep it simple, this will work just fine for you. Here is a pic of my 92 on these springs with 18's. Took this at the beginning of the month....
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Old 10-25-07, 06:53 PM
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Iansaltes
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trukn1,

I am looking at getting 20's... (I know a bunch of guys arent all about that...ANYWAYS...) and I am looking to lower it about 1" front and rear. Do you know if a 20" rim with a "30" or 35" will fit? (probably 245/35s)
Old 10-25-07, 07:39 PM
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trukn1
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Am not a rim/tire expert. You will probably have to run 30's on that rim. I don't think you will have any problems doing so; depends on off set, etc., and you may have to roll your fenders. I could only answer this question with high certainty b/c my setup is almost identical to what he is looking to achieve.
Old 10-25-07, 07:53 PM
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Iansaltes
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Originally Posted by trukn1
Am not a rim/tire expert. You will probably have to run 30's on that rim. I don't think you will have any problems doing so; depends on off set, etc., and you may have to roll your fenders. I could only answer this question with high certainty b/c my setup is almost identical to what he is looking to achieve.
yeah man i know its all good..

I actually saw your LS on cardomain before I ever bought mine, and to be honest I think it was your car that pushed me over the edge to seriously try and find a nice clean one. So I owe you big!
Old 10-25-07, 07:59 PM
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sonyman
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The closest thing to the stock tire size with a 235 or 245 tire is a 235/30 tire. The speedometer would read a mere 0.2% too slow.
Old 10-25-07, 08:35 PM
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trukn1
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Originally Posted by Iansaltes
yeah man i know its all good..

I actually saw your LS on cardomain before I ever bought mine, and to be honest I think it was your car that pushed me over the edge to seriously try and find a nice clean one. So I owe you big!
You saw me over on cardomain?? Oh yeah,,,, I forgot I was over there in the NELOC section. LOL!!! Actualy made me go back and look, b/c I didnt remember having a profile over there. Thanks.
Old 10-25-07, 11:36 PM
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jasonm
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On my old 94 LS400, I had the Tanabe's with 20's and the tires were 235/35/20 fronts and 245/35/20 rear. Had to trim out some of the fender lip.
I like the look of 20's, they fit the big car well.
Attached Thumbnails H&R Sport Springs on '90 LS400-img_0009.jpg  
Old 10-26-07, 08:13 AM
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steveski
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Originally Posted by trukn1
Nat,
I am currently on these springs on my 92 and have been for over a year. The ride will firm up a little more than stock but other than that, no problems. I would advise changing your shocks also, dropping the car on stock shocks does not hurt any, however you will wear them out a little quicker. My setup is KYB-GR2's and H&R springs. With the 18' rims, you can run a 40 profile tire with plenty of rubber to protect the rims. I would also advise changing the bushings for a more sporty ride as well. If you just trying to keep it simple, this will work just fine for you. Here is a pic of my 92 on these springs with 18's. Took this at the beginning of the month....
This is a classy ride Trukn. I think 18's are a good alternative to 20's and they look great on your LS. Considering ride comfort, rim replacement due to roads and maily cost and 18's make good sense. I could run 20's on mine but then tires me way more (for grade A tires that is). I have the same H&R's on mine and like them.
Old 10-26-07, 07:19 PM
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trukn1
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Thanks for the compliment Steve......

Nat- this is how your setup will look with the H&R's and 18's. I have been on this setup for well over a year now and have had no problems at all. Very firm ride, very planted on the highway, confident in most corners (have had SC owners look at me funny taking corners almost as well as them) and no rubbing issues at all. Very rarely, and I do mean very rarely do I ever bottom out, even over speed bumps and such.
Old 10-27-07, 06:53 AM
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Nataphen
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Looks great. I'll end up going with something besides chrome because I have a silver car and I think that chrome would be too flashy for that. Looks nice on black though! The better handling sounds great, and I'm OK with a little firmer ride. This is the first luxury car that I've ever had and a sporty ride doesn't bother me. Went from a 96 Mustang GT with suspension, to a 2001 GMC 1500 with 20s, to a 1993 Chevy 2500, to a 2003 Mustang Cobra with 480rwhp, to this car. I guess you could call this a paradigm shift, lol!

Did you use the stock isolators or something from the aftermarket?
Old 10-28-07, 06:17 AM
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trukn1
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Isolators??? You means shocks?? Just about all of my suspension is aftermarket. My shocks are KYB GR-2.
Old 10-30-07, 02:08 PM
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Nataphen
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Not shocks, I mean the bushing that go on the top and bottom of the springs. Does this car not have those?
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