opening manifold from 78 to 90mm???
10-23-2008, 10:27 AM
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opening manifold from 78 to 90mm??? i have a weiand/lpe manifold its ported by TEA, is it a problem of any kind if i were to have the t/b bore opened to 90mm?
can this be done? if not what size 85 mm?
can this be done? if not what size 85 mm?
Last edited by SS99LS1; 10-23-2008 at 12:59 PM.
10-23-2008, 11:07 AM
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From 78mm to 90mm?? Wow, thats a serious bore job!! I would say if you could do it without weakening the neck material to a dangerous point, then go for it. We are talking about porting the manifold, not the tb correct?
10-23-2008, 11:49 AM
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yes the manifold, i put my 90 up to it and it seems like it would work, trace the inside with a marker and it has a little less than 1/4" on one side no less than 1/8 on the other, could definitely get it to with in a couple "mm" of 90. . . . im just curious if anyone has done this aswell??????
Last edited by SS99LS1; 10-23-2008 at 01:00 PM.
10-23-2008, 10:53 PM
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i know they have a different bolt pattern all i need to do is make the holes a tiny bit oblong, egg shaped and the it should work. . . im gonna start in the morning on this if it works ill post some pics when/if i finish. . .
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10-24-2008, 06:21 PM
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i just finished mine. it is a ton of work. lots of welding! if i could figure out how to put a pic on here i would show you the finished product. maybe i can email it to someone and they can post it.
10-24-2008, 06:45 PM
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I just started it today and I don't think it will need any welding, it seems to be going along pretty good. I didn't get any before pics but ill get some during and after. the neck seems to have enough material to retain its strength, there is extra material around the t/b port which makes the opening smaller , so I think it should be fine. . . if not im buying a new intake
10-24-2008, 06:50 PM
#17
I just started it today and I don't think it will need any welding, it seems to be going along pretty good. I didn't get any before pics but ill get some during and after. the neck seems to have enough material to retain its strength, there is extra material around the t/b port which makes the opening smaller , so I think it should be fine. . . if not im buying a new intake
10-24-2008, 07:21 PM
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the bottom holes wil be filled in then ill tap new holes, but the aren't off by much at all . . . the pass side of the intake has more material then the driver I don't remember exactly but I think .3 and .2 on each side , if the 90 won't work ill just go with an 85 t/b
