Cut and weld intake manifold??
#1
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Cut and weld intake manifold??
i was brainstorming at school today about porting my intake manifold.but i couldnt think of any way i could port the upper intake where it has a 90degree turn then i had a stoke of genius (im sure someone else has done it b4).i was wondering if anyone has anyone cut a cross section of the intake manifold,ported all 4 ports and then welded it back together (and ground down the welds for that stock look).
if no one else has done itb4 i want all ownership of the process.it will be called CPW,for cut,port,and weld.i want ownership over it like that guy did with the supras and BPU J/K LOL
if no one else has done itb4 i want all ownership of the process.it will be called CPW,for cut,port,and weld.i want ownership over it like that guy did with the supras and BPU J/K LOL
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uh how else you think it is ported... except for extrude hone. its a common way of doing it, hell i have seen old school racers do it for years. the tricky part is welding it back together. If the manifold is cast good luck!!
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why dont u make on and tune it to my needs....j/k
i dont have the engineering background to design my own intake manifold
i dont have the engineering background to design my own intake manifold
#7
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lol....if u do a search we talked about this in a thread started by me....i also considered cutting and rewelding but supposedly it's a pain in the *** to weld back cast aluminum....iunno why....ur better of extrude honing it
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Originally posted by Mr BiG G
supposedly it's a pain in the *** to weld back cast aluminum....iunno why....
supposedly it's a pain in the *** to weld back cast aluminum....iunno why....
I Know welding cast IRON is a PITA, but I had not heard that about cast aluminium.
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I'm doing m own inlet when I rebuild my 12a, I've never ported an engine, taken one apart, or done any modifications to one. But I'm very technically minded, read as much as I could - but it's the reading that gives most of the know-how you'll need.
here's the thread on calculating your ideal runner length https://www.rx7club.com/showthread.p...hreadid=199788
enjoy
here's the thread on calculating your ideal runner length https://www.rx7club.com/showthread.p...hreadid=199788
enjoy
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cast aluminum is very easy to weld, it's catching the micro holes that's a PITA, I use a harmonic table to weld it and I've never had a micro leak..
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Right then - I've only just realised something.
When you do that equation, do you make the measurement for the final length, from the exterior of the block - or from the port itself?
Oh yeah, and where do you measure the angles for the ports from? I'm making a PP, so I cant use any standard measurements
When you do that equation, do you make the measurement for the final length, from the exterior of the block - or from the port itself?
Oh yeah, and where do you measure the angles for the ports from? I'm making a PP, so I cant use any standard measurements
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Re: Cut and weld intake manifold??
Originally posted by T04Eneedy
i was brainstorming at school today about porting my intake manifold.but i couldnt think of any way i could port the upper intake where it has a 90degree turn then i had a stoke of genius (im sure someone else has done it b4).i was wondering if anyone has anyone cut a cross section of the intake manifold,ported all 4 ports and then welded it back together (and ground down the welds for that stock look).
if no one else has done itb4 i want all ownership of the process.it will be called CPW,for cut,port,and weld.i want ownership over it like that guy did with the supras and BPU J/K LOL
i was brainstorming at school today about porting my intake manifold.but i couldnt think of any way i could port the upper intake where it has a 90degree turn then i had a stoke of genius (im sure someone else has done it b4).i was wondering if anyone has anyone cut a cross section of the intake manifold,ported all 4 ports and then welded it back together (and ground down the welds for that stock look).
if no one else has done itb4 i want all ownership of the process.it will be called CPW,for cut,port,and weld.i want ownership over it like that guy did with the supras and BPU J/K LOL
You can see the weld at the start of the runners.
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