本帖最後由 chobit 於 2009-5-4 12:56 編輯
I would consider myself a newbie, but then I have read lot and lot the last few years (mostly about my own subie), but would still like to share what I've learned so far. Personally, I would only go for quality parts, instead of cheap solution for the looks. And this is also base on street car, not race setup.
[quote]oh.... I SEE........
Question about lowering car... how? What parts are needed?
Spring? Struct? Coilover? Chamber kit?
To use lowering srings w/o matching with a good set of structs don't always provide better overall performance. The correct combination is to get a set of high quality struct with springs with matching spring rate. Coilover may allow you to gain the extra flexibility for adjustment the ride height. However, getting coilover w/o doing a proper corner/weight balance can sometime upset the suspension more than you want. Then of course you would have to do a performance alightment as well. (Research and see what alignement setup works better with your car is needed).
Also lowering your car too much can also cause you other new problems, and may not necessary provide better performance than stock. Remember you want to have suspension travel, so that you suspension can absob all the in-perfect roads out there. Lowering the cartoo much can also ruin the roll center on a (MacPherson suspension setup)
My warning to you is: don't mistaken high spring rate/harsh ride = better performance. A Porsche suspesion ride firm, but not harsh.
Camber Plate is for camber angle adjustment. Assuming that tire would sit flat with 100% contact to the road with 0 camber, then this is what happen when you are at a corner.
Your car is turn right, the weight is transfer to the left side of your car. The suspension on the left side is compressed The Camber angle would go from 0 to possitive. Therefore, less tire is in contact with the road. Therefore, people pre-setup the amount of negative camber to help increase grip while you are cornering. eg. -2 on camber at rest, then 0 while it is cornering to max out the grip at the corner.
What brand? Eibach seems popular? for... spring?
I am sure others can tell you more, but I use KW V3 : http://www.kw-suspension.com/en/ ... Coilovers/index.php
Lowering = lower center of gravity... so it should, in theory, gives better for cornering while sacrificing ride quality?
So, again, while lowering = lower center of gravity, there are other factors in suspension setup that are more important than center of gravity.
Some additinal info: (on Subie) http://www.iwsti.com/forums/gd-s ... metry-analysis.html
Have FUN.
PS: This is what I have done with my 06 STi
Cobb AP + Protuned on mustang dyno
280 WHP @ 5500
296 WTQ @ 4500
- SPT Intake
- Cobb Turboback Exhaust w/CAT
- KW V3 Coilover (Lower .75" - 1"
- RCE Camber Plate (-1.5F / -2.0R)
- ACPT Carbon Driveshaft
- Cobb F/R Swaybars Cobb Endlinks |
發表於 2009-5-4 11:33
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