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First startup w/open headers #71980
06/12/08 10:00 AM
06/12/08 10:00 AM
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Indiana
W5Duster436 Offline OP
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Getting ready to fire up my car for the first time and since it has no windshield and is not really driveable I can't take it to put exhaust on it beforehand.

The engine is fresh but is using a solid lifter setup that was previously "broken in" so I don't really need to do a break-in so to speak.

I am really excited to fire it up but am worried that with 11.5:1 it may be a bit loud and I may not hear rods etc. There is a muffler shop less than a mile from me but I have no way to get the car there first.

what say you?

Re: First startup w/open headers [Re: W5Duster436] #71981
06/12/08 10:11 AM
06/12/08 10:11 AM
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albany ny
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05dakota Offline
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car trailer.

Re: First startup w/open headers [Re: 05dakota] #71982
06/12/08 10:16 AM
06/12/08 10:16 AM
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Indiana
W5Duster436 Offline OP
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I wish I had one. Had to get rid of it when I moved into my subdivision. Don't have a truck anymore either and unfortunately don't know anyone with a trailer either.

Re: First startup w/open headers [Re: W5Duster436] #71983
06/12/08 10:19 AM
06/12/08 10:19 AM
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NY usa
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540challenger Offline
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you can always buy header mufflers until yu get the exhaust on.

Re: First startup w/open headers [Re: 540challenger] #71984
06/12/08 10:27 AM
06/12/08 10:27 AM
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Posts: 515
Dayton, Ohio
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65cuda Offline
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it's only a mile go for it. no windshield shouldn't be any different than a bike wear glasses. have your wife drive ahead if she sees a cop pull in some where till he goes by. i would try it. cops might be understanding.


65 Cuda 360,3.23 SG-13.97 @99.4, 88 D100, 2000 Kota Qcab, 71 Duster 416 11.84 @110., 73 Imp ,(2)72 & (1)71 Dart Swingers
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Re: First startup w/open headers [Re: 65cuda] #71985
06/12/08 10:31 AM
06/12/08 10:31 AM
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North Carolina
cjskotni Offline
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Aren't you worried about burning a valve? Not to mention the underside of your car...

Re: First startup w/open headers [Re: cjskotni] #71986
06/12/08 10:35 AM
06/12/08 10:35 AM
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Posts: 515
Dayton, Ohio
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65cuda Offline
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cars run open headers at the strip all the time.


65 Cuda 360,3.23 SG-13.97 @99.4, 88 D100, 2000 Kota Qcab, 71 Duster 416 11.84 @110., 73 Imp ,(2)72 & (1)71 Dart Swingers
GarysMocars Legendary Dealer
Re: First startup w/open headers [Re: cjskotni] #71987
06/12/08 10:41 AM
06/12/08 10:41 AM
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Posts: 107
Sierra Vista, Arizona
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extranjero Offline
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If you are going to fire it up, fire it up and let it scream, yes it will be loud but if the motor has already been broken in, what is thier to listen for? Screw the neighbors, that's like someone else controlling your behavior other than your mom, dad, or wife (or boyfriend HEEE!). You won't burn a valve with open headers. Any cop will cut you slack if you are in the process of making your car law compliant. Otherwise, that cop will look like an azz in front of the judge explaining why you were given ticket for loud exhaust while on your way to the muffler shop to get it fixed. And credibility is everything to a cop. I just wouldn't be out for cruises in the current condition of your car. As mentioned, Cherry Bomb header mufflers still sell for about 18 smackers apiece. Lastly, if you are pulled over for loud exhaust, and they try to ding you for no windshield, you can say you were going to fix the exhaust first, as it it the most annoyance (in some peoples eyes) so you can take it to the windshield shop to get that fixed. A restoration in progress, if you will. It is just creative story telling, very simple.

Re: First startup w/open headers [Re: W5Duster436] #71988
06/12/08 10:48 AM
06/12/08 10:48 AM
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Upper Midwest
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Quote:

Getting ready to fire up my car for the first time and since it has no windshield and is not really driveable I can't take it to put exhaust on it beforehand.

The engine is fresh but is using a solid lifter setup that was previously "broken in" so I don't really need to do a break-in so to speak.

I am really excited to fire it up but am worried that with 11.5:1 it may be a bit loud and I may not hear rods etc. There is a muffler shop less than a mile from me but I have no way to get the car there first.

what say you?



As for starting it - do as thousands of other have done. Start the damn thing up and don't worry so much. What will be will be.

Re: First startup w/open headers [Re: extranjero] #71989
06/12/08 10:48 AM
06/12/08 10:48 AM
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Posts: 4,084
Indiana
W5Duster436 Offline OP
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the whole point is that the car still needs to be started and run again for the first time without exhaust. I could care less about driving it down the road to the muffler shop I just wondered about doing another break-in/ring seal without exhaust. I remember the car before with 12:1 and you could hardly hear any engine noise it was so loud. :-)

I tamed down the compression to 11.25 or so. Just worried that if I had something go wrong like rod knocking (heaven forbid) that I wouldn't be able to hear it with open headers.

Re: First startup w/open headers [Re: MoparforLife] #71990
06/12/08 10:50 AM
06/12/08 10:50 AM
Joined: Jan 2003
Posts: 4,084
Indiana
W5Duster436 Offline OP
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Quote:

Quote:

Getting ready to fire up my car for the first time and since it has no windshield and is not really driveable I can't take it to put exhaust on it beforehand.

The engine is fresh but is using a solid lifter setup that was previously "broken in" so I don't really need to do a break-in so to speak.

I am really excited to fire it up but am worried that with 11.5:1 it may be a bit loud and I may not hear rods etc. There is a muffler shop less than a mile from me but I have no way to get the car there first.

what say you?



As for starting it - do as thousands of other have done. Start the damn thing up and don't worry so much. What will be will be.




Thanks Don. That's what I was thinking but just wanted some encouragement to go for broke. LOL

The neighbors will be PI$$ED! 11.5:1 with .590 lift solid. it will make some noise.. tee hee..

Re: First startup w/open headers [Re: extranjero] #71991
06/12/08 10:53 AM
06/12/08 10:53 AM
Joined: Jan 2003
Posts: 4,084
Indiana
W5Duster436 Offline OP
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Quote:

If you are going to fire it up, fire it up and let it scream, yes it will be loud but if the motor has already been broken in, what is thier to listen for?




The engine hasn't been broken-in. It is fresh but the cam/lifters are still the same from when I built the engine in '88 so I assumed there would be no cam break-in so to speak.

Re: First startup w/open headers [Re: W5Duster436] #71992
06/12/08 10:54 AM
06/12/08 10:54 AM
Joined: Feb 2003
Posts: 515
Dayton, Ohio
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65cuda Offline
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no [Edited by Moparts - Keep it clean] when i first started mine up in the garage all kinds of stuff started jumping off the shevles. i was looking for something to fall on me.


65 Cuda 360,3.23 SG-13.97 @99.4, 88 D100, 2000 Kota Qcab, 71 Duster 416 11.84 @110., 73 Imp ,(2)72 & (1)71 Dart Swingers
GarysMocars Legendary Dealer
Re: First startup w/open headers [Re: 65cuda] #71993
06/12/08 11:00 AM
06/12/08 11:00 AM
Joined: Jan 2003
Posts: 1,367
Jersey shore
Gary67 Offline
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I started mine with open headers rode it around the block a few times that way..It set my neighbors car alarm off twice...He just laughed and said he wished someday he could have a car that would do that...

Re: First startup w/open headers [Re: W5Duster436] #71994
06/12/08 11:15 AM
06/12/08 11:15 AM
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U.S.S.A.
JohnRR Online rolleyes
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Quote:

Quote:

Quote:

Getting ready to fire up my car for the first time and since it has no windshield and is not really driveable I can't take it to put exhaust on it beforehand.

The engine is fresh but is using a solid lifter setup that was previously "broken in" so I don't really need to do a break-in so to speak.

I am really excited to fire it up but am worried that with 11.5:1 it may be a bit loud and I may not hear rods etc. There is a muffler shop less than a mile from me but I have no way to get the car there first.

what say you?



As for starting it - do as thousands of other have done. Start the damn thing up and don't worry so much. What will be will be.




Thanks Don. That's what I was thinking but just wanted some encouragement to go for broke. LOL

The neighbors will be PI$$ED! 11.5:1 with .590 lift solid. it will make some noise.. tee hee..




fishing for the answer you want ....

now when you say previously broken in cam , broken in in THAT engine block ???

i'd get a set of adaptors and a pair of mufflers , take it from someone with alot of hearing damage

Re: First startup w/open headers [Re: JohnRR] #71995
06/12/08 11:20 AM
06/12/08 11:20 AM
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It won't hurt to run it. Just be VERY observant as to where the exhaust exits out the headers so as not to burn anything. I drove my wagon to the muffler shop (15 miles) open headers, but I had some pipe scabbed on it to divert it away from the important stuff underneath. While I was tuning it up, I had this set-up on it, just so I wouldn't go deaf.

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Re: First startup w/open headers [Re: 79powerwagon] #71996
06/12/08 11:47 AM
06/12/08 11:47 AM
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Quote:


I tamed down the compression to 11.25 or so. Just worried that if I had something go wrong like rod knocking (heaven forbid) that I wouldn't be able to hear it with open headers.


The way I look at it is either way you will have to fix it! Mike

Re: First startup w/open headers [Re: JohnRR] #71997
06/12/08 11:56 AM
06/12/08 11:56 AM
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Posts: 4,084
Indiana
W5Duster436 Offline OP
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Quote:

fishing for the answer you want ....

now when you say previously broken in cam , broken in in THAT engine block ???

i'd get a set of adaptors and a pair of mufflers , take it from someone with alot of hearing damage




Oh John...

I just want to see what the general concensus is and then I'll follow..

The engine was built in '88 or so and had about 100 miles put on it before the engine was removed from the car and stored. This is a different block but the cam/lifters are the same and already broken-in when run in '88.

Re: First startup w/open headers [Re: 79powerwagon] #71998
06/12/08 11:58 AM
06/12/08 11:58 AM
Joined: Jan 2003
Posts: 4,084
Indiana
W5Duster436 Offline OP
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Quote:

It won't hurt to run it. Just be VERY observant as to where the exhaust exits out the headers so as not to burn anything. I drove my wagon to the muffler shop (15 miles) open headers, but I had some pipe scabbed on it to divert it away from the important stuff underneath. While I was tuning it up, I had this set-up on it, just so I wouldn't go deaf.




That was something I was thinking of doing. You can't just bolt up a set of header mufflers on these hookers in a-body cars with that trans brace.

Re: First startup w/open headers [Re: W5Duster436] #71999
06/12/08 12:17 PM
06/12/08 12:17 PM
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Quote:

Quote:

fishing for the answer you want ....

now when you say previously broken in cam , broken in in THAT engine block ???

i'd get a set of adaptors and a pair of mufflers , take it from someone with alot of hearing damage




Oh John...

I just want to see what the general concensus is and then I'll follow..

The engine was built in '88 or so and had about 100 miles put on it before the engine was removed from the car and stored. This is a different block but the cam/lifters are the same and already broken-in when run in '88.




different block , slightly different lifter to cam geometry , i would treat it like a fresh break in just to be on the safe side since you need to seat the rings anyway .

and put on mufflers ... tinnitus sucks

Re: First startup w/open headers [Re: JohnRR] #72000
06/12/08 12:51 PM
06/12/08 12:51 PM
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Lincoln Nebraska
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RapidRobert Offline
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Myself I would have a buddy help me tow it the mile to the muff shop. I've done it both ways & there's enough to be concerned with during breakin with out the roar of open ex adding to the confusion.


live every 24 hour block of time like it's your last day on earth
Re: First startup w/open headers [Re: RapidRobert] #72001
06/12/08 03:06 PM
06/12/08 03:06 PM
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Michigan
MarkZ Offline
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I did the first run on the 360 open headers with the 5A. Just used some 3" angled pipe to divert the exhaust off of the floor boards. Drove it about 40 miles like that too on the shake down run. Have a little fun, then go get your exhaust.


1987 Fifth Avenue - 512/518/D60
Re: First startup w/open headers [Re: MarkZ] #72002
06/12/08 03:17 PM
06/12/08 03:17 PM
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Chino Valley
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I've fired up a few motors open. They tend to sound very healthy, and you can't hear the smaller stuff.
I'd splurge on a couple feet of flex pipe (if needed) and a pair of mufflers.
Guess John and I agree on this one.
If you want the roar, toss the mufflers in the back for the drive over to the muffler shop.
It's important to use all senses on a new motor...

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