Does any one else have there exhaust out the back?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Sweet72k5 · 04-10-2005, 09:11 PM

Just wondering i have seen alot of blazers with it out the sides by the back tires they say because of fumes but i have 3inch all the way back with flows and i never had the problems with fumes getting inside..Does anyone else have it out the back as well???

Paul72 · 04-10-2005, 10:02 PM

I've had mine out the back since '95 and haven't passed out yet! I've heard others say that the fumes get in, but I have not noticed anything. Could be all the rust holes letting in the fresh air

Paul

bouncytruck · 04-10-2005, 10:49 PM

The exhaust on my '72 sort of dumps down in the rear corners.

Sweet72k5 · 04-10-2005, 10:51 PM

lol nothing like stopping your rig like the flintstones aye...lmao

vtblazer · 04-11-2005, 06:29 AM

Mine are out the side also.
Never had any trouble with the dop off, it's when it's on and the low pressure area created by the top seems to suck them in a bit.

Are you talking about when the top's on or off?

**Tom Vogel** · 04-11-2005, 10:50 AM

We Have made custom headers off the BB going back throgh the frame cross members , over the trailing arms and back straight out parrallel to the frame. Oh... 2WD.

bouncytruck · 04-11-2005, 11:24 AM

From what I have heard, most people get a lot of fumes when they run their soft tops. They aren't quite as air tight (if you can call the hard tops air tight.) I get a little of it with my '69 so I usually run with the rear window rolled up on the soft top, it's easier to see out the back too.

JayDubBlazer · 04-11-2005, 11:26 AM

I think you get more fumes with it out the back with the top off. Though I have no quantitative way to prove that.

Trifelynn · 04-11-2005, 11:58 AM

I personally like when the exhaust comes over the rear axle, and then dumps straight down. I think you get the best sound that way. It kind of rumbles off the ground. I had a 307 in one of my trucks, and had the exhaust dumped after the rear axle, and it sounded better than a different truck that I had with a 350 and pipes out the back. Just my $.02

Sweet72k5 · 04-13-2005, 01:22 AM

Well to me nothing like the smell of carbon vapers burning the eyes...lol had that problem with a crappy carb all fixed now with my new speed demon carb..

04-10-2005, 09:11 PM	#1
Sweet72k5 Registered User Join Date: Apr 2005 Location: Oregon Posts: 53	Does any one else have there exhaust out the back?? Just wondering i have seen alot of blazers with it out the sides by the back tires they say because of fumes but i have 3inch all the way back with flows and i never had the problems with fumes getting inside..Does anyone else have it out the back as well???

04-10-2005, 10:02 PM	#2
Paul72 Registered User Join Date: Sep 2003 Location: Waterloo, IA Posts: 1,147	I've had mine out the back since '95 and haven't passed out yet! I've heard others say that the fumes get in, but I have not noticed anything. Could be all the rust holes letting in the fresh air Paul __________________ '72 Chevy K20 - 383/4sp/205 - SOLD after 41 years in the family Next project - K/5 Tahoe (71 Blazer on 99 Tahoe chassis) Build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=789958

04-10-2005, 10:49 PM	#3
bouncytruck SKINNY TIRES RULE! Join Date: Sep 2001 Location: Bothell, WA Posts: 11,038	The exhaust on my '72 sort of dumps down in the rear corners. Attached Images __________________ bouncytruck 1972 K5 The Hauler 1994 K1500 Suburban The Daily2010 Kia Soul Wife's Ride2014 Fiat 500L

04-11-2005, 06:29 AM	#5
vtblazer Registered User Join Date: Oct 2003 Location: Central Vermont Posts: 8,537	Mine are out the side also. Never had any trouble with the dop off, it's when it's on and the low pressure area created by the top seems to suck them in a bit. Are you talking about when the top's on or off? Attached Images

04-11-2005, 10:50 AM	#6
Tom Vogel 2WD Jimmy Join Date: Mar 2005 Location: Davis County, Utah Posts: 2,565	72 2wd Jimmy We Have made custom headers off the BB going back throgh the frame cross members , over the trailing arms and back straight out parrallel to the frame. Oh... 2WD.

04-10-2005, 10:51 PM	#4
Sweet72k5 Registered User Join Date: Apr 2005 Location: Oregon Posts: 53	lol nothing like stopping your rig like the flintstones aye...lmao

04-11-2005, 11:24 AM	#7
bouncytruck SKINNY TIRES RULE! Join Date: Sep 2001 Location: Bothell, WA Posts: 11,038	From what I have heard, most people get a lot of fumes when they run their soft tops. They aren't quite as air tight (if you can call the hard tops air tight.) I get a little of it with my '69 so I usually run with the rear window rolled up on the soft top, it's easier to see out the back too. __________________ bouncytruck 1972 K5 The Hauler 1994 K1500 Suburban The Daily2010 Kia Soul Wife's Ride2014 Fiat 500L

04-11-2005, 11:26 AM	#8
JayDubBlazer go cyclones Join Date: Jun 2003 Location: Ames, IA Posts: 1,883	I think you get more fumes with it out the back with the top off. Though I have no quantitative way to prove that. __________________ Wes PROJECT OLE GREEN 1972 Blazer 4X4 350/700R4 2017 Silverado LT

04-11-2005, 11:58 AM	#9
Trifelynn Registered User Join Date: May 2004 Location: Williston, North Dakota Posts: 469	exhaust... I personally like when the exhaust comes over the rear axle, and then dumps straight down. I think you get the best sound that way. It kind of rumbles off the ground. I had a 307 in one of my trucks, and had the exhaust dumped after the rear axle, and it sounded better than a different truck that I had with a 350 and pipes out the back. Just my $.02 __________________ Always looking for a 2wd blazer

04-13-2005, 01:22 AM	#10
Sweet72k5 Registered User Join Date: Apr 2005 Location: Oregon Posts: 53	Well to me nothing like the smell of carbon vapers burning the eyes...lol had that problem with a crappy carb all fixed now with my new speed demon carb..



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