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Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 09-11-2006, 08:13 PM   #11
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Quote:
Originally Posted by willwren
Only one knock sensor. And it'* not the noise of the cracks that'* an issue. The leaks cool the manifolds down, making them flow less efficiently. As a result the exhaust backs up in the manifolds, heating up the cylinders.

Regardless of new or not with the fuel system components, check your fuel pressure.
Ok check. ill get them the fuel pressure checked and ill try to get my hands on some EM'* to get all fixed up...would the EM off of a 93 reagle be the same? i can get a free set of those but i think they MIGHT have different O2 location


Also i had the car on the scanner every time i was driving the car today and got so confusing readings...

Morning to work the highest i saw was 9*
@ Lunch the highest was 7*
and on the way home i only saw 5* all the way home till my very last WOT which hit 12* but didnt drop off fast like all the other time (i have seen this once before with stock pullie when i hit 18* and it took 8-10 seconds for it to come back down )
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Old 09-11-2006, 08:24 PM   #12
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Has anyone ever tried welding exhaust manifolds, since I believe that'* what you're referring to when you mention "EM". I would imagine you'd have to grind a V grove in the crack and then Tig Weld it at maybe 100amps or so with probably a 1/8" Tungsten Rod.

Hmmm
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Old 09-11-2006, 08:50 PM   #13
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Quote:
Originally Posted by Maymybonneliveforever
Has anyone ever tried welding exhaust manifolds, since I believe that'* what you're referring to when you mention "EM". I would imagine you'd have to grind a V grove in the crack and then Tig Weld it at maybe 100amps or so with probably a 1/8" Tungsten Rod.

Hmmm
yeah lots have welded or had theres welded, i dont think and groving would be requiered ant least not in any of the welding i have done and im a good welder(best in 2003 ontario autobody skills competion ) just a good old fasion mig weld. just gotta make sure you dont heat it up to the point where it will warp
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Old 09-11-2006, 08:56 PM   #14
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Quote:
Originally Posted by Peterg22000
Quote:
Originally Posted by Maymybonneliveforever
Has anyone ever tried welding exhaust manifolds, since I believe that'* what you're referring to when you mention "EM". I would imagine you'd have to grind a V grove in the crack and then Tig Weld it at maybe 100amps or so with probably a 1/8" Tungsten Rod.

Hmmm
yeah lots have welded or had theres welded, i dont think and groving would be requiered ant least not in any of the welding i have done and im a good welder(best in 2003 ontario autobody skills competion ) just a good old fasion mig weld. just gotta make sure you dont heat it up to the point where it will warp

What type of rod would you use for the manifolds Peter? I believe the manifold is cast, isn't it? I tried Mig once but never really got into it. I have a couple Tig and Stick welders, but never really done stick that much. I bought a plasma Cutter last year but only used it once.
Thanks for that info Peter.
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Old 09-11-2006, 09:12 PM   #15
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mig doesnt use a rod, it uses a wire and im sure steel welding wire would work just fine because i beleace the EM'* are cast steel.

and on a side note, I love plasma cutters, i cut an entire camaro into peices with one once how much did it cost you?
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Old 09-11-2006, 09:18 PM   #16
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Quote:
Originally Posted by Peterg22000
mig doesnt use a rod, it uses a wire and im sure steel welding wire would work just fine because i beleace the EM'* are cast steel.

and on a side note, I love plasma cutters, i cut an entire camaro into peices with one once how much did it cost you?
You're right about the rod, I call the wire, rod since it serves the same purpose. As for the Plasma, I ended up going with Lincoln, with dual voltage, and a bottle. Cost was around $3000.00 including taxes. I don't use the bottle anymore since I'm going to use a portable compressor from now on and change to bottle from I believe heilum to Argon fill for Tig.

Sorry to highjack this thread folks.
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