Inlet manifolds

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Mc Tool
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Inlet manifolds

Post by Mc Tool » Sun Feb 02, 2020 5:56 pm

Nother dumb question
I have now got two 3.9 inlet assemblies , one has the trumpet base bolts onto the lower manifold , the other they are cast as one assembly , from a performance point of view is one any better than the other.? It takes about a week reasonably solid work to polish up one intake assy , and I dont want to do the wrong one :roll:
Thanks
Hamish


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ChrisJC
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Re: Inlet manifolds

Post by ChrisJC » Sun Feb 02, 2020 8:44 pm

Are you sure?? I've never seen one that is just one piece.

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Mc Tool
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Re: Inlet manifolds

Post by Mc Tool » Mon Feb 03, 2020 8:13 am

Yeah , your right , some willy hunt has welded it right round the outside and bead blasted it . I havnt seen what the bolt holes are like as I havnt removed the plenum . Huh
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ChrisJC
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Re: Inlet manifolds

Post by ChrisJC » Mon Feb 03, 2020 6:32 pm

Weird!, why bother?!?! Sounds like a lot of effort for no gain!

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DaveEFI
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Re: Inlet manifolds

Post by DaveEFI » Mon Feb 03, 2020 6:50 pm

Might the coating just be covering the join? There's no gasket used, so no gap.
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