H&R coilover install/review.

not yellow

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2002 Honda S2000
installed a set of H&R coilovers on my MS3 a few weeks ago and wanted to put up a comprehensive post. if you have experience, questions, or input feel free to chime in! (more install photos and torque specs added in post #34)

the package is very basic. bilstein struts, H&R springs, spanner wrenches, adjustable perches for the rear springs, and some fancy thread lubricant from boeing. yes, boeing! all the upper perches and hardware for the struts are reused from the OEM setup...

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no camber plates or adjustable dampers. the ride height adjustment is similar to a sleeve type coilover, wherein the lower you go the more compressed the strut becomes and the higher you go the more extended the strut becomes. don't know if most coilover setups for the MS3 are this way, but it's not ideal. my only other experience is with the BCs i had on my MSP. in that case the spring/strut relationship remained the same and the entire assembly moved up and down in the lower mount.

the build quality seems quite solid. just noticed two little glitches.
1. the brake line brackets up front seem to be in the wrong position. brake line doesn't fit properly unless i really pull/stretch it... which doesn't seem like a good idea!
2. the passenger front ABS bracket does not fit when the locking rings are in the lowest position. fits fine if you raise it about a half inch, otherwise it's all about the zip-tie.

i installed them myself, which was not easy but doable. i have torque specs for all the bolts involved if anyone wants them. there are no instructions included, but if you've worked on suspension stuff before you can probably figure it out. and if you haven't, i wish you luck! if you need specific tips on the install feel free to PM me... otherwise pray to your most mechanically inclined god.

here are some photos of the drop after install. the rears could go just a hair lower, and the fronts could go almost 1/2" lower. i was shooting for an even drop. this is what it looks like on 17" wheels with 215/45s. 18" wheels with comparable tires will have slightly less wheel gap and provide slightly more ground clearance.

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rears:

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fronts:

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got an alignment after the install and the best they could do was -1.5 up front and -2.5 in the rear. the lower you go the more neg you will get. you'll have to get camber links/plates if you want more flexibility with your camber settings. these numbers are fine for me. love me some handling! speaking of which, it is excellent. feels solid and controlled in the corners. the progressive rate springs stiffen nicely under load. compression feels firm but not ridged. the general ride is definitely stiffer than the stock setup, but not uncomfortable. i can feel the bumps a bit more and vibrations/road noise is slightly greater... however, not uncomfortable. it's fine for a DD, but feels more confident and controlled than stock. my main gripe with the stock suspension was the bouncy/floaty feeling... especially at high speeds and on uneven roads. the H&Rs remedy this and have a much more planted feeling. the springs and struts seem well mated. thus far i give them two big thumbs up!
 
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+1 for what he says about the ride. I rode in his car, and although it was a smooth road, it didn't feel jarring at all and it felt 10X more controlled than the bouncy stock suspension
 
Excellent write-up. Every car I have ridden with H&R coilovers has been nothing short of fantastic. They are THE suspension kit for DD's.

I am purchasing the H&R's in about 3 weeks myself. I like that the helper spring is fused on the same coil; helps with weight and cost. I will add some more detail about strut height, shaft length, and overall driving impressions. Probably will also add some detail about disassembly of the rear subframe for the SPC camber links. No need for me to make a new thread; I will just add to yours.

BTW, thanks for the warnings about the ABS/Brake lines.
 
Excellent write-up. Every car I have ridden with H&R coilovers has been nothing short of fantastic. They are THE suspension kit for DD's.

I am purchasing the H&R's in about 3 weeks myself. I like that the helper spring is fused on the same coil; helps with weight and cost. I will add some more detail about strut height, shaft length, and overall driving impressions. Probably will also add some detail about disassembly of the rear subframe for the SPC camber links. No need for me to make a new thread; I will just add to yours.

BTW, thanks for the warnings about the ABS/Brake lines.

yes, please! post up any ideas, comments, photos, details you have. would love for this to be an ongoing depository for information regarding the H&Rs.
 
Im so glad you wrote this, I've been debating on going with coilovers more so then buying Koni struts to go with my Eibach Pro Kit Springs...I like the ability to adjust the height to my taste...but I just couldn't decide on these or BC's which seems like they would be harsh just like my old FK's on my VW. The progressive rate springs are a better choice for DD for sure! Nice write up and Thanks for making my decision alittle easier.(thumb)
 
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Very nice review! Looking to purchase a set soon. Where did you order them from?

ordered them from SU. shipping was fast and free, plus they gave me a little discount. ended up being about $1,100. price point is decent, only things cheaper are BCs.
 
Couple more thoughts after some extensive reading/research:

- Front struts are inverted and include their own internal bump stop. OEM front bump stops are not reused.
- Rear bump stop on the shaft is progressive and reportedly assists with cumulative spring rate. Trimming the rears could negatively affect the handling dynamics of the car and is not recommended by Bilstein.

ordered them from SU. shipping was fast and free, plus they gave me a little discount. ended up being about $1,100. price point is decent, only things cheaper are BCs.

How long did it take to receive?
 
how thick is the strut body compared to stock? i'm intersted in getting hr coils rather than saving up for bilstein shocks + prokit but i dont want to have any clearance issues with my wheel setup and the struts. i have 18x8.5 +48 wheels on and have about 5mm of clearance between the oem strut and the wheel. if the hr strut bodies are thicker or if i hit the spring perch i would be forced to run spacers which i dont want to do.
 
Couple more thoughts after some extensive reading/research:

- Front struts are inverted and include their own internal bump stop. OEM front bump stops are not reused.
- Rear bump stop on the shaft is progressive and reportedly assists with cumulative spring rate. Trimming the rears could negatively affect the handling dynamics of the car and is not recommended by Bilstein.



How long did it take to receive?

yes, in the front you have to remove the OEM dust boot from the upper perch and gently pry off the bump stop.

you reuse everything from the OEM setup in the rear, dust boot, perch, etc... what exactly are you talking about trimming?

they shipped from seattle to san francisco, and it only took three days from the time i ordered it...!
 
how thick is the strut body compared to stock? i'm intersted in getting hr coils rather than saving up for bilstein shocks + prokit but i dont want to have any clearance issues with my wheel setup and the struts. i have 18x8.5 +48 wheels on and have about 5mm of clearance between the oem strut and the wheel. if the hr strut bodies are thicker or if i hit the spring perch i would be forced to run spacers which i dont want to do.

the strut bodies are identical in size to OEM. the rear will be exactly the same space wise. the fronts have a little more breathing room since you remove the massive OEM lower spring perch... if for some reason you wanted to run taller tires.
 
so the the spring perch on the hr coils is higher up than the ones on the oem struts? the whole time i thought it was set lower.
 
so the the spring perch on the hr coils is higher up than the ones on the oem struts? the whole time i thought it was set lower.

not higher up, just a lot smaller. you can see in the first picture, the springs just rest on the two little red locking rings. (front springs are the pair at the top of the shot)
 
how thick is the strut body compared to stock? i'm intersted in getting hr coils rather than saving up for bilstein shocks + prokit but i dont want to have any clearance issues with my wheel setup and the struts. i have 18x8.5 +48 wheels on and have about 5mm of clearance between the oem strut and the wheel. if the hr strut bodies are thicker or if i hit the spring perch i would be forced to run spacers which i dont want to do.
Alot of it depends on if your going to drop them all the way down or not, i experienced that same problem with some bilstein coilovers on a previous car with wider than stock wheels and tires..although it wasn't a Mazda, but most of the coilovers are very similar in design with very close dimensions. I think the perch will be lower than the stock strut.

Ask somebody to measure the distance between the perch to the bottom of the exposed part of the strut were its mounted to the wheel hub with them lowered all the way down and then the diameter of the perch itself.
 
So do you have to compress the springs on the stock strut/spring set, remove the top-hat and reinstall them on the coils?
 
So do you have to compress the springs on the stock strut/spring set, remove the top-hat and reinstall them on the coils?

i didn't. just pointed the strut away from innocent bystanders and removed the top nut! it was really no big deal. the stock spring was not under very much pressure.
 
you reuse everything from the OEM setup in the rear, dust boot, perch, etc... what exactly are you talking about trimming?

It's common for enthusiasts to trim their OEM bump stops to accomodate suspension travel at lower ride heights. Since the rear bump stops (on the shaft that is) are reportedly progressive, trimming a portion effectively reduces the cumulative spring rate of the rear coils. What's worse, the bump stops are only available as a package with the rear shock assembly, should you want to replace them.

It's only a theory right now and has not been fully tested. But Mazda has been using progressive bump stops for a while now.

So do you have to compress the springs on the stock strut/spring set, remove the top-hat and reinstall them on the coils?

Point of clarity - you do not need to separate the upper mount like you do for KW/MS coilovers. The entire assembly is reused.
 
Call me a noob but how come the right set doesn't look like it can be adjusted? Looks completely different than the set on the left.
 
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