SI HFP Suspension will work on EX coupe?

Civicn33b · 09-08-2007, 03:37 PM

is this true? is the pre assembled HFP system the compatible from both SI to EX?

Skylinegtr06 · 09-08-2007, 03:43 PM

no get the Ex HFp suspension there is a reason why there are two different ones i just forgot anyone want to chime in, overallt they bothe give you the same effect

Civicn33b · 09-08-2007, 05:15 PM

right so one for the SI will not directly fit on the EX correct? I noticed on college hills honda they list specific ones for SI and one for LX,EX

Jay Kincannon · 09-10-2007, 02:49 AM

If HFP sport suspension for the Si would fit the other cars, why would Honda make four different kits. Simple. Different engines weights effect dampening and spring rates. Different frame design (2dr or 4dr) also effect damping and spging rates.

Jardiniboy · 09-10-2007, 04:31 AM

Quote:

Originally Posted by Jay Kincannon

If HFP sport suspension for the Si would fit the other cars, why would Honda make four different kits. Simple. Different engines weights effect dampening and spring rates. Different frame design (2dr or 4dr) also effect damping and spging rates.

That's true the suspensions will bolt right up. It's just what Jay kincannon said they're designed different because of the different factor they have.

It's like aftermarket suspension (Besides the HFP) they all fit on all civics no matter what model. There's no reason why they shouldn't bolt up.

Skylinegtr06 · 09-10-2007, 04:39 AM

hmm I wouldnt risk it, im pretty sure it will bolt up fine, but there may be other factors that makes the suspensions different

Jardiniboy · 09-10-2007, 05:17 AM

Quote:

Originally Posted by Skylinegtr06

hmm I wouldnt risk it, im pretty sure it will bolt up fine, but there may be other factors that makes the suspensions different

Mostly it's weight, power, and motor. (EX and Si)

1stk20z3 · 09-10-2007, 06:36 AM

Quote:

Originally Posted by Jardiniboy

Mostly it's weight, power, and motor. (EX and Si)

he's right

ryker · 09-10-2007, 09:12 AM

2628lbs 4dr lx manual
2657lbs LX manual trans
2769lbs EX auto trans
2886lbs Si
2904lbs 4dr GX auto
2945lbs 4dr Si

If the only difference is Spring rate then it should be up to the buyer, to pick soft or hard. But without knowing the exact spring rate it would be a guessing game. But if the shocks are valved to match each car then it might be "best" to buy the correct part. I know for many decades now VW owners would swap out 4cyl springs for vr6 springs and so on. They had a huge chart of color codes on the springs for all the different spring rates.

09-08-2007, 03:37 PM	#1 (permalink)
Civicn33b Senior Member Join Date: Mar 2007 Posts: 3,204 Josh iTrader: 2 / 75%	SI HFP Suspension will work on EX coupe? is this true? is the pre assembled HFP system the compatible from both SI to EX?

09-10-2007, 02:49 AM	#4 (permalink)
Jay Kincannon Senior Member Join Date: Mar 2007 Posts: 934 iTrader: 2 / 100%	Honda designed different HFP kit for each car If HFP sport suspension for the Si would fit the other cars, why would Honda make four different kits. Simple. Different engines weights effect dampening and spring rates. Different frame design (2dr or 4dr) also effect damping and spging rates.

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09-08-2007, 03:43 PM	#2 (permalink)
Skylinegtr06 Senior Member Join Date: Jul 2006 Location: Chula Vista SD Age: 18 Posts: 5,745 edwyn(male) iTrader: 1 / 100%	no get the Ex HFp suspension there is a reason why there are two different ones i just forgot anyone want to chime in, overallt they bothe give you the same effect

09-08-2007, 05:15 PM	#3 (permalink)
Civicn33b Senior Member Join Date: Mar 2007 Posts: 3,204 Josh iTrader: 2 / 75%	right so one for the SI will not directly fit on the EX correct? I noticed on college hills honda they list specific ones for SI and one for LX,EX

09-10-2007, 04:39 AM	#6 (permalink)
Skylinegtr06 Senior Member Join Date: Jul 2006 Location: Chula Vista SD Age: 18 Posts: 5,745 edwyn(male) iTrader: 1 / 100%	hmm I wouldnt risk it, im pretty sure it will bolt up fine, but there may be other factors that makes the suspensions different

09-10-2007, 09:12 AM	#9 (permalink)
ryker Senior Member Join Date: Sep 2007 Posts: 4,616 iTrader: 1 / 100%	2628lbs 4dr lx manual 2657lbs LX manual trans 2769lbs EX auto trans 2886lbs Si 2904lbs 4dr GX auto 2945lbs 4dr Si If the only difference is Spring rate then it should be up to the buyer, to pick soft or hard. But without knowing the exact spring rate it would be a guessing game. But if the shocks are valved to match each car then it might be "best" to buy the correct part. I know for many decades now VW owners would swap out 4cyl springs for vr6 springs and so on. They had a huge chart of color codes on the springs for all the different spring rates.