Blackened exhaust tip

sebringman88 · 10-24-2006, 11:46 PM

Hi,

I have a 2006 SI, 300k, and I have noticed the exhaust tip has started to turn black. Have not been racing the car or going into i-vtec, been driving and shifting around 3500 to 4500 rpm. Has anyone experienced this?

JerrfyLube · 10-24-2006, 11:48 PM

Its normal to pick up a little bit of soot/dirt on the tip...just wipe it off and dont worry about it.

Now if its turning the entire tip black, that might be cause for concern...

brooklynscat69 · 10-24-2006, 11:56 PM

Dude youve racked up alot of miles.

CivicWithNav · 10-24-2006, 11:58 PM

thats called carbon build up....happens in EVERY SINGLE CAR IN THE WORLD cept all electric cars :)

martinez_josh · 10-25-2006, 12:03 AM

I think he meant 300 kilometers

fa1 · 10-25-2006, 12:15 AM

Or 30,000 miles or 30,000 km. If it is that much I think it's time to clean you injectors if soot keeps coming out.

radiocontrolhead · 10-25-2006, 12:19 AM

300 k doens't mean 30 k

i'm guessing 300 k miles? haha. if that was possible, and if thats what he has, then i'd probably guess teh whoel car to be black.

Mattz280 · 10-25-2006, 01:46 AM

Clean your exhaust tip with car wash soap and a sponge every time you wash it. Polish it with metal polish once in a while, and wipe it down with a cotton terry towel (a cheap one) after you wash/dry it each time.

fa1 · 10-25-2006, 02:02 AM

Quote:

Originally Posted by radiocontrolhead

300 k doens't mean 30 k

i'm guessing 300 k miles? haha. if that was possible, and if thats what he has, then i'd probably guess teh whoel car to be black.

I know. I'm saying it's probably a typo on his part.

radiocontrolhead · 10-25-2006, 06:23 PM

oh ok.

but if it is 300 k miles, i wouldn't be surprised if the tip is black, including every otehr part on the car. haha.

Gunslinger · 10-26-2006, 03:41 PM

Its just carbon buildup. After runnin the Si on the dyno I can see why. The factory program is a bit on the rich side. My Mustang is tuned near perfect and the tips are just as clean on the inside as on the outside.

mort · 10-27-2006, 05:11 PM

It's normal. Just wipe it off and you're good to go.

RedSIinPA · 10-27-2006, 05:17 PM

every honda dohc vtec (4 different engines [B20A, H22A, F22C1, K20Z3]) I've ever owned got soot on the tip. normal.

KillerNutz · 10-27-2006, 05:21 PM

Quote:

Originally Posted by sebringman88

Hi,

I have a 2006 SI, 300k, and I have noticed the exhaust tip has started to turn black. Have not been racing the car or going into i-vtec, been driving and shifting around 3500 to 4500 rpm. Has anyone experienced this?

As others have said its running rich. Also, with you babying it, there is probably a lot of carbon build up. Get on it hard once or twice, there will be a large puff of black smoke; thats all of the carbon that has built up in your engine.

si_civic · 10-28-2006, 12:28 AM

^ +1,000. Using a higher quality "Tier-1" gasoline will help. Chevron, or Shell.

sloppytot · 04-03-2007, 02:47 AM

yeah well, on my magnaflow stainless steel cat back tip, i was polishing it, and noticed on top side of it, i got like a ton of carbon buildup.. but its like hard and is almost like thick as if its like a tar like substance that dried.. i dunno.. it refusess to come off with a few solutions i tried... what could it be that could be causing such rough and hardened carbon buildup? oh yeah, its just on the quarter moon of the exhaust tip, if you know what im saying.

06blaksi · 04-03-2007, 07:45 AM

Quote:

Originally Posted by Mattz280

Clean your exhaust tip with car wash soap and a sponge every time you wash it. Polish it with metal polish once in a while, and wipe it down with a cotton terry towel (a cheap one) after you wash/dry it each time.

x2

grifter0x · 07-13-2007, 10:47 AM

Post removed

10-24-2006, 11:46 PM	#1 (permalink)
sebringman88 Junior Member Join Date: Apr 2006 Location: Toronto Posts: 5 iTrader: 0 / 0%	Blackened exhaust tip Hi, I have a 2006 SI, 300k, and I have noticed the exhaust tip has started to turn black. Have not been racing the car or going into i-vtec, been driving and shifting around 3500 to 4500 rpm. Has anyone experienced this?

04-03-2007, 02:47 AM	#16 (permalink)
sloppytot Senior Member Join Date: Jan 2007 Location: Lakewood, NJ Posts: 117 iTrader: 0 / 0%	bringing this thread back from the past lol yeah well, on my magnaflow stainless steel cat back tip, i was polishing it, and noticed on top side of it, i got like a ton of carbon buildup.. but its like hard and is almost like thick as if its like a tar like substance that dried.. i dunno.. it refusess to come off with a few solutions i tried... what could it be that could be causing such rough and hardened carbon buildup? oh yeah, its just on the quarter moon of the exhaust tip, if you know what im saying.

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10-24-2006, 11:48 PM	#2 (permalink)
JerrfyLube Senior Member Join Date: Sep 2006 Location: Cheyenne, WY Age: 26 Posts: 282 Jeff iTrader: 0 / 0%	Its normal to pick up a little bit of soot/dirt on the tip...just wipe it off and dont worry about it. Now if its turning the entire tip black, that might be cause for concern...

10-24-2006, 11:56 PM	#3 (permalink)
brooklynscat69 Senior Member Join Date: Apr 2006 Location: Brentwood, NY Posts: 1,874 iTrader: 1 / 100%	Dude youve racked up alot of miles.

10-24-2006, 11:58 PM	#4 (permalink)
CivicWithNav Senior Member Join Date: Nov 2005 Location: Woodstock MD Posts: 2,566 iTrader: 13 / 100%	thats called carbon build up....happens in EVERY SINGLE CAR IN THE WORLD cept all electric cars :)

10-25-2006, 12:03 AM	#5 (permalink)
martinez_josh Senior Member Join Date: Mar 2006 Location: Albuquerque NM Age: 22 Posts: 327 Josh iTrader: 0 / 0%	I think he meant 300 kilometers

10-25-2006, 12:15 AM	#6 (permalink)
fa1 Senior Member Join Date: May 2006 Location: SF, CA Age: 19 Posts: 2,464 FA Squad Member #17 iTrader: 1 / 100%	Or 30,000 miles or 30,000 km. If it is that much I think it's time to clean you injectors if soot keeps coming out.

10-25-2006, 12:19 AM	#7 (permalink)
radiocontrolhead Senior Member Join Date: Apr 2006 Location: Hollywood, ca Age: 21 Posts: 2,927 Danny iTrader: 0 / 0%	300 k doens't mean 30 k i'm guessing 300 k miles? haha. if that was possible, and if thats what he has, then i'd probably guess teh whoel car to be black.

10-25-2006, 01:46 AM	#8 (permalink)
Mattz280 Senior Member Join Date: Dec 2005 Location: Toronto, ON Age: 25 Posts: 163 iTrader: 0 / 0%	Clean your exhaust tip with car wash soap and a sponge every time you wash it. Polish it with metal polish once in a while, and wipe it down with a cotton terry towel (a cheap one) after you wash/dry it each time.

10-25-2006, 06:23 PM	#10 (permalink)
radiocontrolhead Senior Member Join Date: Apr 2006 Location: Hollywood, ca Age: 21 Posts: 2,927 Danny iTrader: 0 / 0%	oh ok. but if it is 300 k miles, i wouldn't be surprised if the tip is black, including every otehr part on the car. haha.

10-26-2006, 03:41 PM	#11 (permalink)
Gunslinger Senior Member Join Date: Aug 2006 Posts: 140 iTrader: 0 / 0%	Its just carbon buildup. After runnin the Si on the dyno I can see why. The factory program is a bit on the rich side. My Mustang is tuned near perfect and the tips are just as clean on the inside as on the outside.

10-27-2006, 05:11 PM	#12 (permalink)
mort Senior Member Join Date: Oct 2006 Location: Orange County, CA Age: 29 Posts: 10,754 iTrader: 2 / 100%	It's normal. Just wipe it off and you're good to go.

10-27-2006, 05:17 PM	#13 (permalink)
RedSIinPA Senior Member Join Date: Mar 2006 Posts: 1,019 iTrader: 0 / 0%	every honda dohc vtec (4 different engines [B20A, H22A, F22C1, K20Z3]) I've ever owned got soot on the tip. normal.

10-28-2006, 12:28 AM	#15 (permalink)
si_civic Senior Member Join Date: Jul 2006 Location: B.C. ,Canada Age: 30 Posts: 4,608 A/Cst.D.F.Abate iTrader: 10 / 100%	^ +1,000. Using a higher quality "Tier-1" gasoline will help. Chevron, or Shell.

07-13-2007, 10:47 AM	#18 (permalink)
grifter0x Member Join Date: May 2007 Location: NJ Posts: 87 ASM FA5 iTrader: 0 / 0%	Post removed