suspension: initial impressions [Archive] - GrandAmGT.com Forum

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AaronGTR
03-23-2003, 10:13 AM
Well, my suspension's finished. I have basically every bolt on part available now. The list includes 'eibach' springs, 'kyb' front struts, 'kyb' front strut boots, 'ingalls' camber correction bolts, front and rear 'next level' sway bars, and front and rear 'next level' strut tower braces.

A few points for people to be aware of. The ingalls camber bolts do not fit the rear struts. The holes are a different size.

Also, the kyb boots are much nicer than the stock plastic ones. They are made of rubber and are a one peice boot and bump stop which seals much better than stock which is 2 peices. However, if you use drop springs you are supposed to trim 10mm off the bottom of the bump stop. The bottom of the bump stop is in the boot, so I used a hack saw and trimmed 8mm off the top of the bump stop instead. I cut it right at the edge where it starts to taper so it would still snap into the top spring plate.

I did the springs at home with a new set of outside strut-spring compressors from sears. They are only $40 and work quite well. However, if you don't have air tools and don't feel comfortable working with suspensions, I don't recommend doing this at home. It still took me 6 hours to complete and a shop could do it much faster and more easily.

My initial impression of the suspension is... goodyear RSA's suck! My tires can no longer hold the acceleration, cornering, and braking forces of the car, so I will be ordering new wheels and tires next week. After that is brakes, then we'll see what kind of G's this baby can really pull!:D

I took the car for a shake down run and it handles so much better now. No nose dive when braking. Almost no lean in the corners. It just feels confident, and the ride isn't too harsh even though I do feel the bumps more and get a little more road noise. There is some creaking from the rear springs, but they probably aren't settled yet. My dad's taking it in tommorrow for an alignment and to get the trans fluid and filter changed.

After some road driving with some quick corners and doing some figure eights in a parking lot the front tires were much hotter than the rears and the surface and shoulder were really "scrubbed". This is usually a sign of understeer, although both ends seemed to stick like glue compared to before. The rear sway bar could probably still use to be stiffer. It still uses the stock end links with rubber bushings, so maybe I can get someone to make me some adjustable end links with polyurathane bushings.

I'm thinking of having them leave a half degree of negative camber on all the wheels tommorrow. Tell me what you guys think.

Rba007
03-23-2003, 10:27 AM
Congrats on the new suspension aaron. I have a similar setup, minus the camber plates and the strut tower braces. Its a great feeling isnt it? Prolly bad for your back, but there is no corner that can throw me. I have a bit of a rattle in the rear (sounds like the rear struts, but its been doing it for over a year, and nothing has broke, so im not going to sweat it), but other than that no complaints. Enjoy!

collin
03-26-2003, 10:01 AM
I got a similar setup. Next Level Braces, and NL rear sway bar. I also put on some ASA JS1 rims(half inch wider) and a set of Sumitomo HTR+ tires. I have the H&R Springs, and GR2 Struts sitting here waiting for a nice day out. Cant wait. How did the front sway bar affect your handling? I read that on a fwd car a rear sway bar is the main bar needed to create a little over steer. I am debating the front bar, since its still on sale at pfyc.com. Let me know.

AaronGTR
03-26-2003, 10:50 AM
The front sway bar did help the handling. It keeps the front end flat so the wheel camber angle doesn't change while you're cornering. Our cars are setup from the factory to understeer, and adding a stiffer sway bar in front can produce understeer, but the nextlevel front bar is only a little stiffer while the rear is a huge improvement. Therefore it eliminates most of the understeer, plus the polyurethane bushings they use make the steering more responsive. Adding only the rear bar makes the car too tail happy IMO, especially in slippery conditions.

collin
03-26-2003, 10:56 AM
ok cool, I can really wing it around on the corners. Can be fun!!!! I have been pushing it to its limits lately. I still have to think about the front bar, it would prob lower tread wear on my front tires. I'll prob end up getting it.

Thanks

intrepidtek
05-06-2003, 04:46 PM
I just got front/rear KYBs and Eibachs. Do I need anything else?

Do I need the camber bolts?

AaronGTR
05-06-2003, 05:28 PM
Check the thread below titled "PFYC camber adjustment kit".