383 stroker cherry red header pipes on the driver side just 2 inner pipes - Page 2 - Hot Rod Forum : Hotrodders Bulletin Board
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  #16 (permalink)  
Old 12-01-2012, 11:59 PM
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The fuel filter was clean I also took distributor cap off and cleaned up under there. I checked the Pcv line one goes to the intake and one goes into the throttle body.

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  #17 (permalink)  
Old 12-02-2012, 04:45 AM
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Nobody has mentioned valve adjustment. I have seen guys adjust lifters too tight will cause pipes to turn cherry.
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Old 12-02-2012, 08:16 AM
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Quote:
Originally Posted by Paulbean00 View Post
The fuel filter was clean I also took distributor cap off and cleaned up under there. I checked the Pcv line one goes to the intake and one goes into the throttle body.
Sucking too much air thru the vac connection on the intake. That connection probably references those two cylinders. Try pinching off that vacuum line and see what happens.
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Old 12-02-2012, 10:16 AM
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Yea I checked the vacume lines there's no leaks I'm going to get a lean/rich gauge today and try it. I'm starting to think its retarded timing or something in the computer program and how it's tuned. Thanks for all y'all's comments..
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Old 12-02-2012, 12:11 PM
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Originally Posted by Paulbean00 View Post
Yea I checked the vacume lines there's no leaks I'm going to get a lean/rich gauge today and try it. I'm starting to think its retarded timing or something in the computer program and how it's tuned. Thanks for all y'all's comments..
I'm not talking about a leak. Pinch the line connected to the intake port and see if the problem goes away.
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Old 12-02-2012, 12:13 PM
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I took the line off and put a bolt in it to close it off it didn't help
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Old 12-02-2012, 12:52 PM
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And what 2 header pipes are getting hot! and how far away from the heads and what brand headers do you run?

I read the thread and may have missed it but I think your intake is like a tunnel ram with no fuel flow just ram air and the injectors are direct port injectors at the heads?


Ive run injection and carbed engines and had all pipes running red and somtimes only one or 2 ! On my Dino tests all pipes are usually running red but if I change to different brand headers on the same engine they sometimes don't glow, cylinders during the ignition side of the stroke run at about 1600 degrees and at the head port some header pipes glow! A dirty or lean injector squirt will cause 1 of your pipes to glow but a timing problem would effect all your cylinders not just 2 (sent this early bear with me Ill try to type fast enough to finnish LOL) At the track and on the dino I have had to stagger jet carbs because of a normal 1 or 2 cylinders having a lean condition depending on intake flow from port to port or a small difference in cylinder efficiency, and with Hilborn or other independent port injection had to have different setting from cylinder to cylinder for very high rpm either on the injector or tuning with the stack length! I don't know what rpm your pipes are glowing at or if it subsides when running at a different rpm? If you are running lean you need to correct it but it could be a normal condition caused by temp and flow and differences in header pipe configuration and the gauge of the pipe.

Jester

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Old 12-02-2012, 02:01 PM
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What heads-did you port them yourself??.
No it's not a case of a enlarge ego quoting myself.The question I posed was never answered.In theory a mismatched port would end up running hotter.So I asked if he ported the heads himself.Also I have seen brand new aluminum heads right out of the box have crap in them needing to be cleaned out like in the exhaust port or around the exhaust valve cooling.I'm thinking because it is two cylinders right next to each other there is a cooling restriction there making the exhaust valves hot.

And as I think about this more,a simpler answer would be some sort of intake gasket issue.
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Old 12-02-2012, 02:29 PM
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Is it one inside pipe on each side or 2 inside pipes on one side?

The reason I ask is because of the way the intake ports are
separated after leaving the plenum box, They are paired and separated with a divider front and rear side to side! the only thing they have in common is the plenum box and the injector fuel rail! If its 2 pipes on one side or one on each side of the engine the fuel rails could have had a little debree or something that is blocking the 2 injectors fuel inputs ( may be something during shipping that you missed during your cleaning of the new parts before you assembled them or a little bit of metal or something that was dislodged from the lines and fitting during assembly and has worked its way to the injectors!


Ive seen clear vacuum packaging missed during initial clean up block an injector off completely causing a cylinder not to fire at all !

Not saying that's your problem but its a thing to think about! If a shop didn't clean and inspect and blow every thing dry, you could have a dead **** roach to a bunch of head lice in there LOL! swap your injectors with 2 good running cylinders and see if those 2 pipes are still glowing?

Jester
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Old 12-02-2012, 02:36 PM
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Quote:
Originally Posted by 1Gary View Post
No it's not a case of a enlarge ego quoting myself.The question I posed was never answered.In theory a mismatched port would end up running hotter.So I asked if he ported the heads himself.Also I have seen brand new aluminum heads right out of the box have crap in them needing to be cleaned out like in the exhaust port or around the exhaust valve cooling.I'm thinking because it is two cylinders right next to each other there is a cooling restriction there making the exhaust valves hot.

And as I think about this more,a simpler answer would be some sort of intake gasket issue.
1Gary: I saw your question and you posted this as I was typing LOL

Your right it could be? maybe he'll answer you now Are the cylinders next to each other I must have missed that in the thread?

Jester
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Old 12-02-2012, 03:24 PM
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I did not port the heads myself I bought this rig they put custom headers built with 1 5/8 tube
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Old 12-02-2012, 03:27 PM
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Also it's 2 inner header pipes on driver side
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  #28 (permalink)  
Old 12-02-2012, 04:39 PM
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Swap injectors and eliminate them from the trouble shooting.

Jester
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Old 12-02-2012, 04:44 PM
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It's just the driver side I checked intake bolts and one side was loose and the other side was kinda loose I tighten them up and then did compression test all of them have good compression. I'm about to see if the intake being loose was the problem I'm waiting on battery to charge lol if it ain't one thing it's another
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Old 12-02-2012, 04:47 PM
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I'm also gonna check the injectors as soon as I get a good idle
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