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anthonycanchola
Samba Member
Joined: January 06, 2014
Posts: 122
Location: San Pedro, CA
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 Posted: Sun Aug 31, 2014 3:20 pm Post subject: Driving without exhaust |
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I'm driving my 1600 cc no exhaust but I have a header on
Is this bad? Besides the loudness.
Any damage? Help pls
_________________
1981 Vanagon (traded)
1967 1776cc
2332 coming soon |
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itskyle
Samba Member
Joined: October 04, 2013
Posts: 634
Location: Plainfield, IN
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| Posted: Sun Aug 31, 2014 4:30 pm Post subject: It shouldn't |
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Damage the engine. However, living on the west coast, I'd be fearful of the smog police if I were you.
Kyle
_________________
--
69 or 72 Autostick Bug current
66 Bug (We both miss it)
74 SuperBeetle Auto Stick (I miss that car)
73 SquareBack, Straight Stick (Wife misses this one.) |
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Dr OnHolliday
Samba Member
Joined: May 11, 2012
Posts: 1215
Location: was Escondido now San Berdoo
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| Posted: Sun Aug 31, 2014 4:34 pm Post subject: |
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That will burn and warp the exhaust valves.
_________________
1965 Type 1 sunroof Baja / about 70k miles on self-rebuilt '74 1600 and counting / SP heads and aftermarket valve keepers / non-doghouse shroud with external cooler and filter / 1.5 qt extended sump / Weber 32/36 DFAV progressive carb / 009 dist with Pertronix / 1.25 ratio rockers and ball adjusters / 1.5" stainless steel J-pipes and carbon steel baja exhaust |
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bdub475
Samba Member
Joined: April 05, 2009
Posts: 577
Location: Los Lunas, New Mexico
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| Posted: Mon Sep 01, 2014 12:42 am Post subject: |
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| He said he is running a header without something bolted to the flange. Yes running without an exhaust at all will burn or warp an exhaust valve. |
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morymob
Samba Member
Joined: November 09, 2007
Posts: 4683
Location: east-tn
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| Posted: Mon Sep 01, 2014 3:29 am Post subject: |
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| B.S., where do base your info from, internet 'expert inc?' |
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VOLKSWAGNUT
Fastest VW Belt Changer
Joined: October 14, 2007
Posts: 11056
Location: Flippin' a Belt........ .... Off-n-On ... NC USA
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| Posted: Mon Sep 01, 2014 7:13 am Post subject: |
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Running an engine with NO exhaust....meaning right out of the head exhaust port, can on certain engines cause valve issues.
Using exhaust tubing past the exhaust port, such as a header, without a muffler will not cause any harm to the engine or valves.
It will not perform optimally
.
_________________
aka Ken {o\!/o}
Its your vehicle- stop askin' for approval-do what YOU like for cryin' out loud
Better to roll em' how you want and wear em' out-than lettin' em' rot out
Its about the going not the showing
Rebuilt to drive not decorate
WANTED: Local Eatin' Joints, Triple D for TheSamba contributions here http://www.thesamba.com/vw/forum/viewtopic.php?t=570510
Search "VOLKSWAGNUT" on YouTube since you cant watch a "certain" BELT change video round here
Usually and often edited |
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Dr OnHolliday
Samba Member
Joined: May 11, 2012
Posts: 1215
Location: was Escondido now San Berdoo
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| Posted: Mon Sep 01, 2014 12:19 pm Post subject: |
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I got my "internet BS" from experience with motorcycles and especially H-Ds running short drag pipes.
_________________
1965 Type 1 sunroof Baja / about 70k miles on self-rebuilt '74 1600 and counting / SP heads and aftermarket valve keepers / non-doghouse shroud with external cooler and filter / 1.5 qt extended sump / Weber 32/36 DFAV progressive carb / 009 dist with Pertronix / 1.25 ratio rockers and ball adjusters / 1.5" stainless steel J-pipes and carbon steel baja exhaust |
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Jon Schmid
Samba Member
Joined: May 29, 2012
Posts: 2038
Location: Southern California
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| Posted: Tue Sep 02, 2014 7:40 am Post subject: help! asap!, driving without exhaust, |
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Years ago we had a Bursch type muffler fall off our car (on the freeway no less  ) and my uncle, who was an air cooled engine mechanic, suggested stuffing a rag in the pipe when the engine was shut off, otherwise the relatively cool air going into the exhaust valves could warp the stems. Of course, less the muffler the remnant exhaust pipes were a lot shorter than regular headers. Just one of the many fun adventures of that car. |
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anthonycanchola
Samba Member
Joined: January 06, 2014
Posts: 122
Location: San Pedro, CA
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| Posted: Tue Sep 02, 2014 10:12 pm Post subject: |
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Thank you guys  I put the muffler on
_________________
1981 Vanagon (traded)
1967 1776cc
2332 coming soon |
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Dauz
Samba Member
Joined: January 05, 2010
Posts: 1790
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| Posted: Wed Sep 03, 2014 1:56 pm Post subject: |
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| You're more likely to burn valves even with a stinger if you're going downhill in low gear. |
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Brian
Samba Moderator
Joined: May 28, 2012
Posts: 8340
Location: Oceanside
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| Posted: Wed Sep 03, 2014 6:06 pm Post subject: |
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I had a buddy who drove around in a Toyota Starlet with a straight pipe. +1 HP
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Wash your hands
'69 Bug
'68 Baja Truck
'71 Bug
'68 Camper
Only losers litter |
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Jon Schmid
Samba Member
Joined: May 29, 2012
Posts: 2038
Location: Southern California
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| Posted: Wed Sep 03, 2014 6:12 pm Post subject: help! asap!, driving without exhaust, |
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| Brian wrote: |
| I had a buddy who drove around in a Toyota Starlet with a straight pipe. +1 HP |
I'm impressed. A straight pipe doubled the horsepower! |
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Dauz
Samba Member
Joined: January 05, 2010
Posts: 1790
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| Posted: Thu Sep 04, 2014 9:00 am Post subject: Re: help! asap!, driving without exhaust, |
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| Jon Schmid wrote: |
| Brian wrote: |
| I had a buddy who drove around in a Toyota Starlet with a straight pipe. +1 HP |
I'm impressed. A straight pipe doubled the horsepower! |
My thoughts exactly. Especially in a car that offered AC OR acceleration. |
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TMI Products
Samba Member
Joined: February 14, 2014
Posts: 744
Location: Corona, Ca
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| Posted: Thu Sep 04, 2014 9:15 am Post subject: Re: It shouldn't |
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| itskyle wrote: |
Damage the engine. However, living on the west coast, I'd be fearful of the smog police if I were you.
Kyle |
a muffler will not change emissions coming form the engine, as far as a ticket for noise, that's up to the cops discretion.
I have been pulled over in my mustang for "modified" exhaust. When I asked him what's modified about it, he said I removed the catalytic converters. I asked how do you know. He said because I can hear it. When I told him the car never came with any and because its a 65 its smog exempt, he got really made and told to get out of there because next time I will get a ticket. Of course I asked for what, and he told me to leave.
From what I have seen, most cops do not know what they are looking at other then hoping to give a ticket for a smog violation and hope you know less and don't question it.
_________________
Mario De Leon
1965 Turbo Mustang Fastback
1966 Type 3 Fastback
VW Division Sales Manager
[email protected]
TMI Products
1493 Bentley Dr.
Corona Ca, 92879
1-800-624-7960
951-272-1584 FAX |
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VOLKSWAGNUT
Fastest VW Belt Changer
Joined: October 14, 2007
Posts: 11056
Location: Flippin' a Belt........ .... Off-n-On ... NC USA
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| Posted: Thu Sep 04, 2014 9:48 am Post subject: |
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Here in NC..
In order to pass a simple State Auto Safety Inspection..
Cars and light duty trucks must have some type of "muffler",
Exhaust stsyem can not have leaks,
and the exhaust must exit out beyond the body...
The rules also state.. no part of the exhaust can pass through the passenger compartment. 
But cars 35 years and older are exempt from inspections... (for now)
.
_________________
aka Ken {o\!/o}
Its your vehicle- stop askin' for approval-do what YOU like for cryin' out loud
Better to roll em' how you want and wear em' out-than lettin' em' rot out
Its about the going not the showing
Rebuilt to drive not decorate
WANTED: Local Eatin' Joints, Triple D for TheSamba contributions here http://www.thesamba.com/vw/forum/viewtopic.php?t=570510
Search "VOLKSWAGNUT" on YouTube since you cant watch a "certain" BELT change video round here
Usually and often edited |
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| Back to top |
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Jon Schmid
Samba Member
Joined: May 29, 2012
Posts: 2038
Location: Southern California
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| Posted: Thu Sep 04, 2014 10:37 am Post subject: Re: help! asap!, driving without exhaust, |
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| Dauz wrote: |
| Jon Schmid wrote: |
| Brian wrote: |
| I had a buddy who drove around in a Toyota Starlet with a straight pipe. +1 HP |
I'm impressed. A straight pipe doubled the horsepower! |
My thoughts exactly. Especially in a car that offered AC OR acceleration. |
Actually, I tease. My mom bought a Starlet new back in 1980 and drove it for over 20 years until she sold it. Last I heard a while back it was still running around up in the Eureka area. It was actually a great little car. But it sure didn't win any drag races. |
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TMI Products
Samba Member
Joined: February 14, 2014
Posts: 744
Location: Corona, Ca
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| Posted: Thu Sep 04, 2014 10:44 am Post subject: |
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| VOLKSWAGNUT wrote: |
Here in NC..
In order to pass a simple State Auto Safety Inspection..
Cars and light duty trucks must have some type of "muffler",
Exhaust stsyem can not have leaks,
and the exhaust must exit out beyond the body...
The rules also state.. no part of the exhaust can pass through the passenger compartment.
But cars 35 years and older are exempt from inspections... (for now)
. |
Legally here in Ca, you cannot touch anything before the catalytic converter. You can have a straight pipe if you wanted but that doesn't mean it wont pass the new "traps" set up on the side of the road that measure emissions and dB as you drive by.
I've never had to have a car inspected, nor would I want to. I get lazy with fixing things like wipers and lights. Even my fast back I just registered, hasn't been on the road since 98, Paid the 112 bucks and done.
_________________
Mario De Leon
1965 Turbo Mustang Fastback
1966 Type 3 Fastback
VW Division Sales Manager
[email protected]
TMI Products
1493 Bentley Dr.
Corona Ca, 92879
1-800-624-7960
951-272-1584 FAX |
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| Back to top |
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Helfen
Samba Member
Joined: January 19, 2009
Posts: 3450
Location: Vulcania
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| Posted: Fri Sep 05, 2014 9:04 pm Post subject: |
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| TMI Products wrote: |
| VOLKSWAGNUT wrote: |
Here in NC..
In order to pass a simple State Auto Safety Inspection..
Cars and light duty trucks must have some type of "muffler",
Exhaust stsyem can not have leaks,
and the exhaust must exit out beyond the body...
The rules also state.. no part of the exhaust can pass through the passenger compartment.
But cars 35 years and older are exempt from inspections... (for now)
. |
Legally here in Ca, you cannot touch anything before the catalytic converter. You can have a straight pipe if you wanted but that doesn't mean it wont pass the new "traps" set up on the side of the road that measure emissions and dB as you drive by.
I've never had to have a car inspected, nor would I want to. I get lazy with fixing things like wipers and lights. Even my fast back I just registered, hasn't been on the road since 98, Paid the 112 bucks and done. |
Let me just add to that. Even though emission testing in Ca. is limited to cars from 1976 and newer, vehicles with exhaust emission controls which started in 1966 are required to have all their emission devises on the car and in working order, this is where that roadside thing comes in. Also if the results of California's Cap & Trade law implementation (starting in 2014) does not get the results, and it won't because businesses which the law was first aimed at are fleeing the state at record numbers will mean it comes down to the old escape goat "the automobile". Current Ca. law says that the state can pull all those vehicles from 1966 to 1975 back into Ca. smog check without going to the legislative process or voters. As state emission standards tighten it is most likely this will happen to comply with the Cap and Trade standards. All that is needed is the nod from California EPA or California Air Resources Board to implement. Bottom line is make sure you have ALL the emission equipment your car is supposed to have.
Now let's get to the header question. Generally, when you change from the stock exhaust to a set of headers, the scavenging of the header leaning the mixture must be addressed by re-jetting the carburetor a little richer, same holds true if you go a step further by eliminating the muffler. If you don't do this there is a possibility of over time burning a exhaust valve. Remember leaning out a combustion chamber, up to the point of detonation causes the combustion chamber temps to rise...which will burn a valve. Cars with EFI don't have this problem because their O2 sensor picks up the lean condition and tells the ECM to fatten up the mixture to the normal air fuel ratio. |
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