RSX Type S springs

[Suk02Si]

RSX Type S springs rates:
Front: 3.6k [201.6lbs] Linear
Rear: 5.8k - 7.4k [324.8lbs - 414.4lbs] Progressive

Civic Si(EP3)
Front: 4.4k [248lbs] Linear
Rear: 7.8 [440] Linear
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I installed the RSX springs on my car. The front is now lowered 1" and the rear is now raised 1/2".

I found the RSX spring rates on Honda-tech and couldn't belive it, RSX-S softer?:o Its true, after the install I went for a quick drive around the block and its very noticable. I think Acura did that so the ride would be much smoother and not harsh, which it is.

The front RSX springs are slightly shorter and have thinner coils(red dots mark the top of each spring).


The rear RSX spring is the same length but has about two more coils than the Si spring.

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I plan to keep the RSX front springs and use my old rear springs.

My set up:
Springs: Front 3.6k[201.6] Linear | Rear 7.8k[440lbs] Linear
Sways: Front 23mm(RSX) | Rear 19mm(RSX)
Ride Height: Front 1" lower | Rear stock
Camber: Front -1 | Rear -.5

I think this way the car will rotate much easier. 19mm rear sway is not as agressive as the CTR 22mm sway so I wont have problems with too much rotation.

In the future I plan to go with the Mugen rear sway (25mm) and progress front(27mm) or stock Si (25mm hollow).

I'm going to play with different setups but this seems to be pretty good for all OEM parts ;) This could be a great AutoX setup:lol:

[andy]

Suk - awesome research.
Very interesting about the springs (I had heard that the Si's were
probably more stiff than the rsx) - there's a guy on clubrsx right
now selling both sway bars from the type s and springs for $100.
May be a real cheap way of lowering (the front, at least) and firming
up the suspension on an Si. Now to just get a cheap RSX-S engine... :lol:

[Suk02Si]

Thanks for the feedback andy. :)

I went for a drive today. Took Topanga Cyn Rd, to Mullholand dr, to Old Topanga Cyn Rd, back to Topanga Cyn Rd.

Stock RSX springs all the way around sucks; way too soft. If you enter a turn a little too fast the car dips too much and springs back hard causing the car to bounce.

Tomorrow morning I will put the stock Si springs in the rear and hope that it balances everything out.

[02SilverSiHB]

sweet info! :D

[ronin]

Sorry to resurrect a dead post but what did you end up doing? Did you put the Si springs back in the back . How did it handle with the Rsx springs up front and the Si ones in back. Also what other suspension mods do you have?

ronin

[Suk02Si]

Yeah I put the stock Si springs in the rear and it handles much better. The car dips into turns much better and I can get throttle-off oversteer much easier than before :lol:

[andy]

Suk,

Do you know if anyone else has tried aftermarket springs for the
RSX-S on their Si? I guess I really just need to compare spring rates
(theres a guy on clubrsx selling a really cheap set of springs, but they
are RSX-specific) and then go from there.

[Suk02Si]

I think some companies don't make RSX specific springs. Like Progress, they're for the RSX/Si, I think Neuspeed Race, and Sprint springs are the same way.