OK Took care of the front end and need advice for the rear

BIGBLUESI · Sep 24, 2018

I just installed a front strut bar for better handling. Now I want to get the rear taken care of. Is it a sway bar that I want to upgrade to? If so what would be good for my 18 SI Coupe?What would you recommend and do you have any links where I can get the best bang for the buck? Thanks!!!

360glitch · Sep 24, 2018

See if you can snag a Type R rear sway bar from an owner that has upgraded, they are a great upgrade for the Si. It will make a lot more difference than any strut bar.

BIGBLUESI · Sep 25, 2018

Thanks, I’m looking for something brand new out-of-the-box. Would this be the case or is it something that was taken off of the car and a private sale?

racer · Sep 25, 2018

BIGBLUESI said:
Thanks, I’m looking for something brand new out-of-the-box. Would this be the case or is it something that was taken off of the car and a private sale?

Both new and used are available, just have to look.

kseriesparts · Sep 25, 2018

I agree you'll see more out of a sway bar than a strut tower bar. The rear sway bar would be a great suspension upgrade. It'll help with combating the natural understeer.

SoCalCivicSI · Oct 21, 2018

BIGBLUESI said:
Thanks, I’m looking for something brand new out-of-the-box. Would this be the case or is it something that was taken off of the car and a private sale?

Why not buy used and save money for another mod?
I mean it's just a solid bar, not much can go wrong, and nobody sees it, why pay full pop?
Just a suggestion.

SoCalCivicSI · Oct 21, 2018

kseriesparts said:
I agree you'll see more out of a sway bar than a strut tower bar. The rear sway bar would be a great suspension upgrade. It'll help with combating the natural understeer.

I'm new to the Civic world, is the Type"R" sway bar a LOT thicker than the SI sway bar??

DarkLight · Oct 21, 2018

SoCalCivicSI said:
I'm new to the Civic world, is the Type"R" sway bar a LOT thicker than the SI sway bar??

Si sway is 18mm (457lbs./in) and CTR is 20.5mm (721lbs./in). So it’s a fairly significant bump in rate compared to Si.

I recommend the Progress rsb as it’s the same size as the CTR bar, has stronger mounting brackets, poly bushings, and is easier to find at a good price.

SoCalCivicSI · Oct 21, 2018

DarkLight said:
Si sway is 18mm (457lbs./in) and CTR is 20.5mm (721lbs./in). So it’s a fairly significant bump in rate compared to Si.

I recommend the Progress rsb as it’s the same size as the CTR bar, has stronger mounting brackets, poly bushings, and is easier to find at a good price.

Hmm....that is significant difference but I wouldn't want my ride to be any stiffer, maybe I'll stick with the stock SI sway bar, it doesn't handle bad for sure.....Thanks for the info!

L8apex · Oct 21, 2018

SoCalCivicSI said:
Hmm....that is significant difference but I wouldn't want my ride to be any stiffer, maybe I'll stick with the stock SI sway bar, it doesn't handle bad for sure.....Thanks for the info!

A stiffer swaybar wouldn’t result in a stiffer ride. If both rear wheels compress and rebound the same amount (most bumps you experience), you won’t notice the stiffer bar because There is no twist in the swaybar. When you do hit offset offset bumps or bumps that only affect one wheel, then you’ll notice the extra stiffness. Going over speedbumps at an angle for example, and you’ll feel ththe is extra stiffness.

As mentioned above, the stock Type R rear bar WAS a great bang for the buck upgrade. Now that their price is jacked up to aftermarket swaybar prices, you’re free to pick a swaybar brand of your choice. They’re all great choices.

SoCalCivicSI · Oct 21, 2018

L8apex said:
A stiffer swaybar wouldn’t result in a stiffer ride. If both rear wheels compress and rebound the same amount (most bumps you experience), you won’t notice the stiffer bar because There is no twist in the swaybar. When you do hit offset offset bumps or bumps that only affect one wheel, then you’ll notice the extra stiffness. Going over speedbumps at an angle for example, and you’ll feel ththe is extra stiffness.

As mentioned above, the stock Type R rear bar WAS a great bang for the buck upgrade. Now that their price is jacked up to aftermarket swaybar prices, you’re free to pick a swaybar brand of your choice. They’re all great choices.

Good to know, Thanks!!

jscm · Oct 23, 2018

DarkLight said:
Si sway is 18mm (457lbs./in) and CTR is 20.5mm (721lbs./in). So it’s a fairly significant bump in rate compared to Si.

I recommend the Progress rsb as it’s the same size as the CTR bar, has stronger mounting brackets, poly bushings, and is easier to find at a good price.

Progress swaybar is 20.6mm(550 lbs/in) same size with the CTR but is much less stiffer seems like.

DarkLight · Oct 24, 2018

jscm said:
Progress swaybar is 20.6mm(550 lbs/in) same size with the CTR but is much less stiffer seems like.

Yeah I noticed that too. I bet it has something to do with the plastic end links used on the lower trims while the CTR has metal. I got a noticeable increase in roll stiffness when I installed Accord aluminum endlinks.

I’m going to ditch the Progress bar and pick up one of the Karcepts bars eventually.

OK Took care of the front end and need advice for the rear

BIGBLUESI

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360glitch

BIGBLUESI

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racer

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kseriesparts

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SoCalCivicSI

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SoCalCivicSI

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DarkLight

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SoCalCivicSI

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L8apex

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SoCalCivicSI

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jscm

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DarkLight

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