Lowering Lexus IS300H

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Mar 14, 2022 | 03:32 AM

#16

Soldat79

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From: France

Quote:

Originally Posted by kaleo211

Thank you! I live in New England, the road condition here is not that good. If the front is too low, my front bumper would have been cracked many times. sadly no, I installed it myself.

I get it, I would like the same no cracking on the front bumper.

Mar 14, 2022 | 04:38 AM

#17

kaleo211

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From: MA

sorry not able to help here. one thing I think might be important when it comes to using different springs is the spring rate. theoretically, the spring rate would affect a little on the steering (oversteer or understeer), I forgot the relation between these. but you probably can google that.

Mar 14, 2022 | 12:44 PM

#18

swaangin

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Joined: Sep 2017

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From: nj

Quote:

Originally Posted by Soldat79

Ok I get it, do you think the coilovers can livre at least 50 - 70 000 Miles

Got my springs installed at 30K miles, I'm at 70K, still ride good, no strut leakage

Mar 14, 2022 | 12:54 PM

#19

Soldat79

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From: France

Do you mean coilovers? Or springs

Mar 14, 2022 | 01:47 PM

#20

swaangin

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From: nj

Quote:

Originally Posted by Soldat79

Do you mean coilovers? Or springs

if you're asking me, it's the RSR down springs on OEM struts

Mar 14, 2022 | 01:50 PM

#21

Soldat79

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From: France

Yes It was for you

I found your car https://www.clublexus.com/forums/is-...uys-think.html

Mar 14, 2022 | 06:43 PM

#22

swaangin

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From: nj

If you want close to stock ride with a lowered look, RSR springs are good. They've been making springs for the IS for over a decade. If you want something where you have a huge amount of configurability and probably a significantly worse ride, go with coilovers. They also cost $1K+ not including labor, not worth it for me since the springs are fine.

Mar 15, 2022 | 12:55 AM

#23

Soldat79

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From: France

Quote:

Originally Posted by swaangin

If you want close to stock ride with a lowered look, RSR springs are good. They've been making springs for the IS for over a decade. If you want something where you have a huge amount of configurability and probably a significantly worse ride, go with coilovers. They also cost $1K+ not including labor, not worth it for me since the springs are fine.

No I don't want Lol, I believe you. I think I will go with spring, it's more safe and comfort Iike we said. There is no coilovers with low strenght spring.,like RSR spring front 4,2 and rear 8,3 kg/mm

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Mar 15, 2022 | 09:38 AM

#24

swaangin

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From: nj

Quote:

Originally Posted by Soldat79

I didn't even consider the spring rate but RSR also makes a coilover system as well (which is the cheapest one from what I understand). From what I heard, when you install coilovers, the adjustments are all 4 corners are NEVER the same, there's always small differences which lead to different ride qualities. If you are experienced with coilovers, you know how the dampening and stiffness works, then go for it but I feel like those are more for a track set up rather than the street.

Mar 15, 2022 | 09:50 AM

#25

Soldat79

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From: France

I understand, I won t go to the rave with my IS it s a hybride 220hp, no a rocket lol.
I wondering is there is a way to adjust the rear size spring like rear spring with coilovers.