Jimmy06AWD

iTrader: (2)

1. Do the AWD springs have a higher ride height than the RWD, or does it just seem that way because of smaller wheels?

2. How much lower does the sport suspension drop the car?

3. As far as lowering springs goes, does the sport suspension offer the most comfort and practicality compared to F-sport/Other aftermarket?

Thanks in advance

Kurtz

iTrader: (1)

The sport suspension is 0.4 inches lower in the front, same height in the back, but firmer all around (both springs and shocks) than the standard suspension.

Personally I'm sticking with it because unlike all aftermarket springs they're linear, and AFAIK nobody has actually taken the time to do any testing to discover if going any lower offers any measurable performance benefit... plus no worries about tire wear or clearing a speed bump.

I realize it probably leaves more wheel gap than some of the slammed guys like, but I spend a lot more of my time inside my car enjoying the ride and handling than I do outside of it staring at the wheel gap.

Jimmy06AWD

iTrader: (2)

would sport springs fit on an awd?
do they make tein h tech springs for awd?

dojoman

iTrader: (5)

AWD sure is a lot higher than RWD, it's a truck. If you want to drop from AWD I will not consider F-sport since it dropped very little.

IS-SV

Yes, if I remember correctly AWD was listed in the Lexus IS brochure as being .6" taller than the RWD car.

IS-SV

My '07 car came equipped with Sport package/suspension which is nice setup.

I selected Eibach 350's for my rwd IS350 for a mild approximately 1" drop. They are progressive rate springs that give a good ride/handling compromise that works well for me. Although the car handles a bit flatter, I doubt there is any measurable improvement in handling.

I do not track the car so I wasn't concerned about having linear rates and I wasn't interested in slamming my car to eliminate all wheel gap. I certainly did not want a suspension setup that requires me to drive the car slowly to avoid damage.

IS-SV

I see most of us have RWD cars, but he will have only certain springs available to him. Hopefully some of the AWD members can help more.

JoshIS408

iTrader: (11)

Is slamming your car bad for you suspension? I want to go lower, but my cars pretty much brand new and i dont want to screw myself in the long run becuase i plan on keeping this car until it dies. Do you guys think i should just stick to the f sport drop (f sporty shocks as-well)? Sorry for thread jack

Jimmy06AWD

iTrader: (2)

So,
The stock sport suspension lowers the front approx .4"
and the Tein H-Techs lowers the front approx 1"

Since I have AWD and its already .6" taller than a RWD, am I always going to be .6" higher than a RWD IS using the the same springs?

Lexus324

How would you compare the riding comfort of the oem sport springs to Eibach? Just curious because I also have the sport package.

IS-SV

The ride is somewhat firmer with a bit less body roll after installing the Eibach 350's. On slightly bumpy roads (with small bumps) the ride is as good as stock. Overall the ride quality is fair to good, as I expected.

Over really large bumps at high speeds, I get a sense the shocks (OEM sport shocks that came with car) seem to strain more to control rebound, so that's a negative.

uz07lex

iTrader: (14)

Im not sure if you have a front lip but Ill have to say that I have the stock suspension on a RWD and I scrap the lip driving daily in NY. Dropping the car a little bit would probaly destroy the lip.

Jimmy06AWD

iTrader: (2)

^ thanks for the info. that helps a lot. I do have a front lip, so i'll probably just forget about dropping it. 18's will probably help close the wheel gap a little bit.

Phresh2010

iTrader: (3)

^ his is a rwd tho so it is naturally lower than our AWD models, i think i 1 inch drop would be fine without any scraping, im gonna go with tein h tech springs when the weather gets better