Ported Intake Manifold ??
03-01-2010, 12:39 AM
#21
03-01-2010, 10:36 AM
#24
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i dont know about that, you want the most air you can get in that thing. hell when i went from a 58mm to a monoblade on my le2 package car i could notice a pretty good pick up.
03-02-2010, 09:14 PM
#25
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I tried fooling around my intake on my own and made some gains. Then I sent a intake to Lingenfelter and let them have a go at it to see if they knew something I did not. Well they do, when I put their intake on and ran the car it picked up 3mph and .2 in the 1/4 and the air density was about 500 feet worse. This is on a low 10 high 9 sec car with a 398ci in it. Well worth the 300 I spent to have it done.
03-02-2010, 11:25 PM
#27
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what kind of intake were they using though? Was it fully ported or was the throttle body openings just enlarged for the bigger throttle body?
03-02-2010, 11:28 PM
#28
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i dont know about yall but going from a 52mm to 58mm tb and gaining 7hp is a good difference to me. wonder what setup that was on? wonder what i gained from switching my 58mm to a monoblade tb?
03-03-2010, 12:02 AM
#29
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Ok i wanna but in on this... If you don't mind. But what about ported intake on a turbo application with 62cc tfs heads off the self, 355 built bottom in. Just contemplating weather to port or not. Any real power gains?
03-03-2010, 12:38 AM
#30
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from the sounds of it that is where the most gains from porting your intake are is in forced induction applications. From what I gather out of this thread, porting the intake is kind of a trade off between flow and velocity for NA motors. For FI motors you already have tons of velocity so the more flow you can get out of the intake the better so if I am thinking right...port it
03-03-2010, 01:24 AM
#31
With a 383+ because of the added cylinder volume, it seems to make even more sense to use one.
Here is the thread in case anyone is interested:
http://www.camaroz28.com/forums/showthread.php?t=739747
03-03-2010, 01:32 AM
#32
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isn't the stock manifold only bored to 52mm on the throttle body openings though? You would think that it would create some tubulence right there but if they got gains from that I would have no qualms putting a 58mm on now and porting the intake sometime down the road or at least opening up the throttle body bore
03-03-2010, 01:41 AM
#33
isn't the stock manifold only bored to 52mm on the throttle body openings though? You would think that it would create some tubulence right there but if they got gains from that I would have no qualms putting a 58mm on now and porting the intake sometime down the road or at least opening up the throttle body bore
Maybe the "porting" you're thinking about doesn't include the runners.
03-03-2010, 01:46 AM
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no I know the difference between intake porting and throttle bore opening but I had to ask the question because they failed to mention it. I will probably end up talking to a local machine shop about opening the throttle bores then and go with a 58 as opposed to sending it out to have it fully ported or settling for a 52mm. Thanks for all the help to all that have contributed, as always it is appreciated 
03-03-2010, 02:25 AM
#36
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damn that looks nice, have a question though. when i swapped my 58mm out for the monoblade i opened up the front of my mani myself for the monoblade tb. well when i did that i smoothed out the whole opening, meaning that lil hump on the bottom with the hole in the middle of it i cut it out. would this cause any problems?
03-03-2010, 02:32 AM
#37
damn that looks nice, have a question though. when i swapped my 58mm out for the monoblade i opened up the front of my mani myself for the monoblade tb. well when i did that i smoothed out the whole opening, meaning that lil hump on the bottom with the hole in the middle of it i cut it out. would this cause any problems?
58mm, 6463, bore, difference, headsblack, intake, le2, lingenfelter, lt1, manifold, modifications, port, ported, sbc, stock
