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02-17-2004, 11:25 AM
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#1 |
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Registered User
Join Date: Apr 2003
Location: Lubbock, Texas
Posts: 248
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Exhaust Routing
Where is everyone routing their exhaust tips? I see two good options....either straight out the back or behind the rear wheels. Both have their good and bad points.
Straight out the back: Nice clean look, clearance issues around the fuel tank and skid plate, exhaust can come through rear window area to get into cab (Past experience running without a rear window). Behind the rear wheels: Easy routing of pipes, road dings on the chrome tips, harder to keep clean. What are your opinions? |
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02-17-2004, 11:27 AM
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#2 |
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go cyclones
Join Date: Jun 2003
Location: Ames, IA
Posts: 1,883
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I am going to go straight back. I think that way less exhaust will be sucked back when I have my top off. If anyone has wind tunnel results for this I would love to see it
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02-17-2004, 02:13 PM
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#3 |
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Registered User
Join Date: Apr 2003
Location: Lubbock, Texas
Posts: 248
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Jaydub,
That is where I'm leaning also, but I did have problems in the past. I had a new style blazer and I wanted to drive around with the rear window open, to get more fresh air flowing, since my AC was on the brink. Anyways, I would get "gas'd" out from the exhaust fumes alot of times. And this was from pipes running straight out the back. The low pressure area directly behind the tail gate would allow the gasses to come up from the exhaust and right in through the window. But I don't know if a side exhaust would be any better. Rick |
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02-17-2004, 03:21 PM
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#4 |
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I love doing it topless
Join Date: Oct 2003
Location: MossyRock, WA
Posts: 493
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mine is coming out on the side behind the rear wheels and i smell a lot less fumes then I did in my first blazer with the rear exit setup.
__________________
Mikey "If you can read this, thank a teacher; If you are reading it in English, thank a soldier." 
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02-17-2004, 07:30 PM
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#5 |
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Mike
Join Date: Jan 2003
Location: west chester pa
Posts: 2,473
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I agree with MMGOODIE.I changed mine to out the side behind the wheel.Less fumes when top is off.Here in Pa we have to run mudflaps when lifted.I have short diamondplate with lower part heavy rubber.This protects the tips.
__________________
70'c/10, 71 suburban4x4 402bb, 72suburban 4/6 drop, 72k/5 4x4 blazer 4" lift 35 tires |
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02-18-2004, 12:28 AM
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#6 |
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Registered User
Join Date: Dec 2003
Location: Left Coast
Posts: 254
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Out the side! If I had used a shorter muffler, I would have had the tip exit in front of the tire, where less crap would get on it.
__________________
Toys: 72 K5 Blazer 74 Vette |
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02-18-2004, 04:47 PM
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#7 |
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go cyclones
Join Date: Jun 2003
Location: Ames, IA
Posts: 1,883
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I get my exhaust this week and hopefully will have installed by next week. I will make sure to post pics
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02-19-2004, 04:39 AM
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#8 |
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Account Suspended
Join Date: Dec 2003
Location: Texas
Posts: 2,686
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Alot of the people around here get there pipes routed out the side behind the wheels for several reason.
1) less inside noise than in front of the wheels 2) If you pull cargo trailers or stock trailers alot the pipes out the back tend to get black stuff on the trailer. |
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02-19-2004, 05:00 AM
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#9 |
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Senior Member
 
Join Date: Feb 2002
Location: Tucson, AZ USA
Posts: 7,504
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I ran the exhaust tips out the sides, behind the tires, for a couple of reasons:
a] So I could read the color of exhaust smoke on start up thru my rearview mirror. b] Smog deteriorates rubber. They get enough of it anyway, why add to it by putting the exhaust pipes upstream of your tires? However, if I have the hatch up, I still get smogged bigtime. Go figure. |
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02-19-2004, 11:30 PM
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#10 |
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Registered User
Join Date: Sep 2002
Location: Melbourne,Florida
Posts: 174
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On my first K5 I ran them out the sides infront of the rear tires never had any problems
kman
__________________
New 89 chevy 1500 driver 72K20 rust bucket project stripped down to the frame engine rebuild started 71 Blazer - another procect |
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02-25-2004, 05:06 PM
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#11 |
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"Trucks with Class"
 
Join Date: Jul 2000
Location: OLYMPIA, WA, USA
Posts: 8,158
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Old School
I like them out the back. With the top on/or up, I keep the heater blower on or a vent open to pressurize the inside. That stops the fumes from coming in the back.
Look at the next post/pic for nice tailpipes. |
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02-25-2004, 05:12 PM
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#12 |
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"Trucks with Class"
Join Date: Jul 2000
Location: OLYMPIA, WA, USA
Posts: 8,158
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Nice pipes
I have these made for our trucks. They are "manderel" bent (no kinks of flat spots). They are 2-1/4" oversize aluminized pipe. Not cheap, but look at those smooth bends and the clearance around the rear tank---Blazer or PU. Small block only.
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02-25-2004, 05:22 PM
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#13 |
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"Trucks with Class"
Join Date: Jul 2000
Location: OLYMPIA, WA, USA
Posts: 8,158
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One-piece pipes
Another shot of all those bends. These are really clean one-piece tailpipes...no splices or welds from the rear axle back. I also have the same mandrel bent tail pipes that exit out the sides, behind the rear wheels.
Sorry, I don't have boxes to ship these over sized pipes,at this time--need to be picked up here. |
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02-25-2004, 05:44 PM
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#14 |
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Registered User
Join Date: Mar 2001
Location: HOUSTON, TX 77080
Posts: 16
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Exhaust
Straight out the back can be bad if you go offroad. Your departure angle is affected. You don't want the weight off your Blazer on the pipes.
Know what I mean? |
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02-25-2004, 06:06 PM
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#15 |
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"Trucks with Class"
Join Date: Jul 2000
Location: OLYMPIA, WA, USA
Posts: 8,158
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I never thought of the "off road" problem. If I go off road with my Blazer, I will sure keep that in mind.
 OK---just a little Blazer joke there. I am not really going off road. I don't want to get my stainless "Meg" tips dirty.
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