Exhaust

btstone84 · 08-24-2007, 07:53 AM

Hey guys,I have a 2002 S2K. i just bought the Skunk2 cat-back exhaust, and a new stainless DC Sports header. I aslo have an AEM VS cold air intake. i have them on and was wondering what kind of horsepower i should be getting at the wheel. i also ordered a high-flow racing catalytic converter. how much more horsepower will that give me when it comes in and i install it. i read that the skunk2 adds 12 HP at the wheel but it doesnt feel like it. thanks for the help. My next purchase will be an APEXi AFC/VETC controller. hoping that will really make a difference!

gomarlins3 · 08-24-2007, 08:10 AM

Quote:

Originally Posted by btstone84

i read that the skunk2 adds 12 HP at the wheel...

I seriously doubt that. I would guess you are putting down between 195 and 205. Your greatest gains will come from the VAFC. The DC header probably lost you some HP.

btstone84 · 08-24-2007, 08:21 AM

Quote:

Originally Posted by gomarlins3

I seriously doubt that. I would guess you are putting down between 195 and 205. Your greatest gains will come from the VAFC. The DC header probably lost you some HP.

you really think the header lost HP, it feels so much stronger with. I dont know much about this stuff, why would the Header make me lose HP?

s2000isu · 08-24-2007, 09:20 AM

Fluid dynamics LOL But a simpler explanation is honda knew what they were doing when they designed their header. Does your new header have mounts for the heat shield I cant remember I know some headers do not. But your header has shown a loss on dynos.

btstone84 · 08-24-2007, 09:50 AM

Quote:

Originally Posted by s2000isu

Fluid dynamics LOL But a simpler explanation is honda knew what they were doing when they designed their header. Does your new header have mounts for the heat shield I cant remember I know some headers do not. But your header has shown a loss on dynos.

how much of a loss. It feels so much stronger with the header on there. And no it doesnt have any mounts for a heat shield. I couldnt even tell when i put the exhaust on, but now that i have the header it just pulls a lot harder. I readin import tuner that it supposedly gave 4 HP, but you know some of that stuff is wrong

gomarlins3 · 08-24-2007, 02:49 PM

What you could do, although it does cost some money, is to do a dyno run with the header on and then change it our for the stock one and do another dyno run. It does cost money and will take a good portion of the day due to needing a little time for the header to cool off, but then you would know for sure (at least as sure as you can be with only a couple dyno runs) if it lost HP or not.

leo520 · 08-26-2007, 08:27 PM

give u a little low rpm power but los ur hp during the VTEC, and u know all honda power comes during the rev of Vtec.

btstone84 · 08-27-2007, 12:01 PM

Quote:

Originally Posted by leo520

give u a little low rpm power but los ur hp during the VTEC, and u know all honda power comes during the rev of Vtec.

how much in the vtec did i lose, or is it around the same. I am so hoping to make around 200 to 205 at the wheel. likely?

s2000isu · 08-27-2007, 01:04 PM

cant say not much. If it feels good to you why sweat it?

gomarlins3 · 08-28-2007, 06:19 AM

Dyno it and find out.

btstone84 · 08-28-2007, 06:25 AM

One last question guys, the exhaust (skunk2) came with these (i think they are called) baffles that you stick in the muffler. would it make more HP with them in or out?

gomarlins3 · 08-28-2007, 10:32 AM

Usually without, but then you have a volumn problem and the police don't like loud exhausts. Use with caution.

chazdawg35 · 08-28-2007, 08:14 PM

HEAR YOU THERE!!!I'M IN NEW MEXICO AND COPS LOVE ME

08-24-2007, 07:53 AM	#1 (permalink)
btstone84 Member Join Date: Jul 2007 Location: Atlanta Posts: 53	Exhaust Hey guys,I have a 2002 S2K. i just bought the Skunk2 cat-back exhaust, and a new stainless DC Sports header. I aslo have an AEM VS cold air intake. i have them on and was wondering what kind of horsepower i should be getting at the wheel. i also ordered a high-flow racing catalytic converter. how much more horsepower will that give me when it comes in and i install it. i read that the skunk2 adds 12 HP at the wheel but it doesnt feel like it. thanks for the help. My next purchase will be an APEXi AFC/VETC controller. hoping that will really make a difference!

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08-24-2007, 09:20 AM	#4 (permalink)
s2000isu Senior Member Join Date: Oct 2006 Location: pa Posts: 1,157	Fluid dynamics LOL But a simpler explanation is honda knew what they were doing when they designed their header. Does your new header have mounts for the heat shield I cant remember I know some headers do not. But your header has shown a loss on dynos.

08-24-2007, 02:49 PM	#6 (permalink)
gomarlins3 "Enjoy the drive" Join Date: Jul 2005 Location: Kuna Idaho Posts: 2,644	What you could do, although it does cost some money, is to do a dyno run with the header on and then change it our for the stock one and do another dyno run. It does cost money and will take a good portion of the day due to needing a little time for the header to cool off, but then you would know for sure (at least as sure as you can be with only a couple dyno runs) if it lost HP or not.

08-26-2007, 08:27 PM	#7 (permalink)
leo520 Senior Member Join Date: Feb 2007 Posts: 114	give u a little low rpm power but los ur hp during the VTEC, and u know all honda power comes during the rev of Vtec.

08-27-2007, 01:04 PM	#9 (permalink)
s2000isu Senior Member Join Date: Oct 2006 Location: pa Posts: 1,157	cant say not much. If it feels good to you why sweat it?

08-28-2007, 06:19 AM	#10 (permalink)
gomarlins3 "Enjoy the drive" Join Date: Jul 2005 Location: Kuna Idaho Posts: 2,644	Dyno it and find out.

08-28-2007, 06:25 AM	#11 (permalink)
btstone84 Member Join Date: Jul 2007 Location: Atlanta Posts: 53	One last question guys, the exhaust (skunk2) came with these (i think they are called) baffles that you stick in the muffler. would it make more HP with them in or out?

08-28-2007, 10:32 AM	#12 (permalink)
gomarlins3 "Enjoy the drive" Join Date: Jul 2005 Location: Kuna Idaho Posts: 2,644	Usually without, but then you have a volumn problem and the police don't like loud exhausts. Use with caution.

08-28-2007, 08:14 PM	#13 (permalink)
chazdawg35 Senior Member Join Date: Jul 2007 Location: simi valley,california Posts: 666	HEAR YOU THERE!!!I'M IN NEW MEXICO AND COPS LOVE ME