99 Si - Shocks vs Coilovers
Yes, the title says it all.
Instead of learning the hard way I would much rather ask for some guidance from the much more seasons members of HT.
OK, I'm running on OEM everything so far, minor tweaks here and there but that's it.
I'm looking for recommendations and suggestions for brands you have used/love/hate along with part numbers (If you can).
Also, lets say I do end up choosing a Shock / spring kit from Skunk2, Eibach or KYB, am I able to use the OEM mounting, top plate and whatnot?
Should I look at replacing them considering the age at this point?
Should I look at new LCA's as well? Obviously it depends on the age/wear of the bushings, I already know I have one of the two linkage bars (thingys that attach to the rear sway bar) to replace.
Any suggestions/hints/remarks/comments/flames are welcome...
Instead of learning the hard way I would much rather ask for some guidance from the much more seasons members of HT.
OK, I'm running on OEM everything so far, minor tweaks here and there but that's it.
I'm looking for recommendations and suggestions for brands you have used/love/hate along with part numbers (If you can).
Also, lets say I do end up choosing a Shock / spring kit from Skunk2, Eibach or KYB, am I able to use the OEM mounting, top plate and whatnot?
Should I look at replacing them considering the age at this point?
Should I look at new LCA's as well? Obviously it depends on the age/wear of the bushings, I already know I have one of the two linkage bars (thingys that attach to the rear sway bar) to replace.
Any suggestions/hints/remarks/comments/flames are welcome...
Koni/GC is a very popular setup, and for a good reason.
What is your budget? What are the plans for the vehicle? DD or fun?
Stay away from Skunk2 and KYB for now. The AGX isn't a horrible shock, but you can do much better.
What is your budget? What are the plans for the vehicle? DD or fun?
Stay away from Skunk2 and KYB for now. The AGX isn't a horrible shock, but you can do much better.
As for replacing the bushings, Nothing ever is as simple as popping out the old one and popping in the new one, do I have to press them out?
I've been using Bill Kay's website for wonderful exploded diagrams... I'm looking at #13 from here => http://goo.gl/Aqh7H judging by the way the LCA's are setup, I'm going to need six of them? three per LCA?
Well, I'm looking to keep it reasonable... 500-1000 for now, if going over means a huge jump in life/perf, I'm not against it. After all, this is my DD; I'm thinking of getting a beater and moving this into the garage for tweaking and kicking the **** out of the beater for my 80mi drive round trip to work and back...
A shop press would be easier. But there are other ways around it. Burn the bushing the cut the metal sleeve. Energy suspension bushing kit might be a good start.
I'm considering just going with a good set of sport shocks with an OE replacement set of springs and calling it a day... then again, I'm not sure there would be much of a benefit to that over OEM and keeping it simple.
It rides like hell, sounds like **** and overall is frustrating.
Since I bought the car about a year ago I've noticed a steep decline in the quality of ride even with new tires and numerous other adjustments.
Since I bought the car about a year ago I've noticed a steep decline in the quality of ride even with new tires and numerous other adjustments.
I'll look around and check it out.
I was mostly going to replace from the bushings up if possible.
I've been working on things here and there on this car, I just completed a minor brake rebuild last weekend, three warped rotors and cheap pads replaced.
I was mostly going to replace from the bushings up if possible.
I've been working on things here and there on this car, I just completed a minor brake rebuild last weekend, three warped rotors and cheap pads replaced.
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Buy the beater!!!! This is what I need to do.
there's noithing wrong with a nice set of lowering springs and a quality set of shocks, to
"freshin" up the car.
Take a look at PIC/Hardrace bushings. Might as well go threw it, while your under there.
there's noithing wrong with a nice set of lowering springs and a quality set of shocks, to
"freshin" up the car.
Take a look at PIC/Hardrace bushings. Might as well go threw it, while your under there.
I'd rather go with Koni/gc, AMR. Manily becuase I like being able to adjust my height as I please.
Awesome...
I'm looking at Koni for the replacement shocks, any insight on how to pick good springs?
Sorry for some of the stupid questions, I'm ... new at this.
I'm looking at Koni for the replacement shocks, any insight on how to pick good springs?
Sorry for some of the stupid questions, I'm ... new at this.
Find THMotorsports in the sponsor marketplace. They'll hook you up. Best price anywhere and great service.
Forgive me for not being clear before, what do the different spring rates achieve for me?
Higher rates meaning higher I sit?
Found the thread by THMotorsports, I'm going to give them a buzz once I know what rates I'm after...
Keep in mind, I'm using this currently as a DD, and as others have put it here, weekend warrior driving like an idiot
I Don't want this thing 'slammed' as I think for the most part it looks like ****, but I wouldn't mind if it sat a wee bit lower.
I am sitting on stock rims/height as well...
Higher rates meaning higher I sit?
Found the thread by THMotorsports, I'm going to give them a buzz once I know what rates I'm after...
Keep in mind, I'm using this currently as a DD, and as others have put it here, weekend warrior driving like an idiot

I Don't want this thing 'slammed' as I think for the most part it looks like ****, but I wouldn't mind if it sat a wee bit lower.
I am sitting on stock rims/height as well...
350 rear isn't "rough" but you'll definitely notice every bump in the road.
So a 290/350 is more of a just street oriented with MINOR gains in handling
where is 350/380 is sacrificing some comfort for handling
where is 350/380 is sacrificing some comfort for handling
Rear rates are much more of an effect on "ride comfort" in comparison to front rates.
350 or 380 rear isn't necessarily going to be better than the other, in fact they'll probably perform about the same.
350 Front is awfully soft. I track mine, so I more easily get that impression. But for daily driving, and if you're lowering 2" I'd be a lot happier with 450 instead of 350. It's too soft for backing out of driveways even sometimes. My undercarriage will "bounce" on the dip and slam my oil pan or something sometimes. A stiffer front rate would alleviate that.
Getting swaybars is a phenomenal upgrade as well if you don't have those.
350 or 380 rear isn't necessarily going to be better than the other, in fact they'll probably perform about the same.
350 Front is awfully soft. I track mine, so I more easily get that impression. But for daily driving, and if you're lowering 2" I'd be a lot happier with 450 instead of 350. It's too soft for backing out of driveways even sometimes. My undercarriage will "bounce" on the dip and slam my oil pan or something sometimes. A stiffer front rate would alleviate that.
Getting swaybars is a phenomenal upgrade as well if you don't have those.
Ok
So in comparison, what are the typical OE rates then? Or are those in a league of their own?
In short, I should be looking for something in the 450-550 in the front and 380's in the back?
**EDIT**
After reading the links in your sig, I feel a bit stupid now
I think I'm going to take some of your advice with spring rates.
Now about the sway bars, doesn't the 99 SI come with a sway bar from factory?
I know I have some minor repairs to make to the linkage assembly but that should be it
So in comparison, what are the typical OE rates then? Or are those in a league of their own?
In short, I should be looking for something in the 450-550 in the front and 380's in the back?
**EDIT**
After reading the links in your sig, I feel a bit stupid now

I think I'm going to take some of your advice with spring rates.
Now about the sway bars, doesn't the 99 SI come with a sway bar from factory?
I know I have some minor repairs to make to the linkage assembly but that should be it
Last edited by purgat0ry; Sep 3, 2011 at 07:36 PM. Reason: I'm an idiot :)
450F 350R is not a bad setup at all, in fact, it's the spring rates I will most likely end up going with.
I currently run 350's in rear, and you will notice bumps, and uneven pavent, drops, etc a lot more then the stock car. This is just one of the trade off's, however, it's not horrible, back breaking, or anything. My dad hates it, but, he's old. lol
450F is the lowest for a mildly lowered car I would ever go. (mild to me is around 2.5")
The 350F is simply too soft.
I currently run 350's in rear, and you will notice bumps, and uneven pavent, drops, etc a lot more then the stock car. This is just one of the trade off's, however, it's not horrible, back breaking, or anything. My dad hates it, but, he's old. lol
450F is the lowest for a mildly lowered car I would ever go. (mild to me is around 2.5")
The 350F is simply too soft.
I think I'm going to take some of your advice with spring rates.
Now about the sway bars, doesn't the 99 SI come with a sway bar from factory?
I know I have some minor repairs to make to the linkage assembly but that should be it
Now about the sway bars, doesn't the 99 SI come with a sway bar from factory?
I know I have some minor repairs to make to the linkage assembly but that should be it
Obviously it depends some on the setup you are using, but there is some average to it I'm sure...
Yes it does, 26mm front, 13mm rear. (some information has been found to say either the 99 or the 2000 had a 14mm, although, I have never seen one). I have sway bars off a 2000 si, 13mm bushings fit.
Koni/gc can you pretty low. I can almost tuck lip in the rear with my skunk2's.
If you really want to go low, you need to be looking in the 500-550 range for the front.
with the 450's, I would like to say you could do 3'' without much of a problem, assuming you can keep the car out of large pot holes.
Makes sense, I forgot the Koni/GC setup is adjustable... Sorry I'm used to working in absolutes.
I really don't want a low car, the roads around here suck.
I really don't want a low car, the roads around here suck.


