speedmaster 96mm intake manifold swap thread
Yeh i read that one, good reviews on the GTO forums as well. slammedc5 found out the hard way about using too big of a TB on a small opening, his plate wasnt opening all the way lol
god i hate porting, covered in aluminum shavings. Finished shaping and matching all the port entrys in the manifold, and finished smoothly the walls of the exits. Need to cartridge roll the insides and smooth them out, and then finish up all 8 on that one side with 320 and crossbuffs.
Aluminum is a bitch. But then again plastic is too. Wonder if extrude hone is still in business. If I were to ever use a metal intake again I would just send it out to them. I just dont have the patience anymore lol
cant wait to be done this, ive only got about half of it done so far, tomorrow ill finish that one side and begin work on the other 4 runners on the weekend. Hopefully will be hitting the track tomorrow night to see what she can do before the swap.
Teching In
Joined: May 2015
Posts: 2
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I think the are. The company that was local to me is closed down but I think the parent company is still active. Had a TPI system back in the day done, came out great although I had no before and after results to go by as the system was new. Its a pretty cool process.
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Verdad Gallardo That's the mounting hole for the injector, the port is upside down in the pic. Concept behind porting is "raise the roof, don't lower the floor". So keeping it upside down helps me maintain that, even though there isnt much material removal there at all.
Well the cam can certainly support a 90mm tb, so thats why i opted for the 4 bolt opening, that and just because it doesnt require an adapter to mount it. Ill be using the LS3 throttle body, i dont have it yet but thats what im going to be getting as its significantly cheaper then the LS2 not to mention a better design.
http://store.katechengines.com/oil-p...take-p148.aspx
I use air tools to do the porting. I have a high speed air grinder from lowes and various chucks to fit different style bits. Im using a long shank aluminum burr for the hard to reach areas that need heavy cutting, and a 20 dollar pack of catridge rolls and arbors from harbor freight. Comes with 80-120 rolls and various shapes, spiral and straight. Not really trying to reshape or remove material in the runners by the port openings, only reshaping and heavy cutting im doing is on the inner part of the manifold where the runners take in air from the plenum. There's alot of rough cast protruding in those areas, so im blending them to have smooth transitions around the curves.
http://www.ebay.com/itm/LS-Gen-4-Valley-Pan-Cover-Plate-Low-Profile-Carb-Lifter-LSX-LS3-DOD-Delete-55164-/131578184042?vxp=mtr
im going to test fit the stock rail using FAST injector hats (extenders) and a set of spacers and see if it will clear the middle of the runners. Worst case scenario a set of holley efi LS1/6 fuel rails will do the job just fine, they sell them as a kit for about 100-120.
ok i seen those holly ones i put them in cart on amazon just in case,i guess u could get 2 feet of 1/4 in hollow bar and cut them to size but don't know if that will look clean enough,maybe polished alum tor stainless stock, let me know and love the pics which really helps me as i HAVE TO see it to get it lol
I hope your not using the fast (bottom side) spacers. You never want to play with the bottom side of the injector. There's plenty of top side spacers out there.
Does this new valley cover have the tower block offs ?
Does this new valley cover have the tower block offs ?