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09-09-2013
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#1 |
 Join Date: Jan 2010
Location: Freedom Pa
Posts: 275
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If/When you go to siamesed Intakes?
In a conversation on Sunday, One of the evil influences, which shall nameless("ZZZZZR1") started talking about siamesed intake ports for a 385 cube engine. It got me wondering, when & what parameters to use this method. I do comprehend the concept of drawing from 2 ports. I am sure RPM & Engine Size dictates use, just curious when. And, if cylinder porting would be different. I doubt I would ever do, just curious how it is used. Thanks, Tim
Last edited by alnukem; 09-09-2013 at 11:00 PM. |
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09-09-2013
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#2 |
 
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: If/When you go to siamesed Intakes?
I have one on my 350 w/cams.....have not been to the dyno but trust me no loss in torque.....pete drove it as well and came to the same conclusion. In fact, someone put it on a lift and checked the revolutions because they thought it has a 4.10 gear.
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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09-09-2013
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#3 | |
Join Date: Jan 2007
Location: Pineville, LA
Posts: 586
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Re: If/When you go to siamesed Intakes?
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 Lee, The set up on the 90 you did is pretty much where I want to go eventually. Good gains for the amount of work IMHO. -Daniel |
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09-09-2013
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#4 |
  
Join Date: Jun 2005
Location: pittsburgh
Posts: 4,633
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Re: If/When you go to siamesed Intakes?
Siamesed and dropped plenum on a 385 is sexy. We need to meet up soon
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It's not the car, it's the people - Doug Johnson 90 r/r "KEYS ON" nick named "T.L.B" |
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09-09-2013
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#5 |
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Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: If/When you go to siamesed Intakes?
Pic after rough porting was done:
 Stock: 
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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09-09-2013
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#6 |
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Join Date: Jun 2005
Location: pittsburgh
Posts: 4,633
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Re: If/When you go to siamesed Intakes?
WANT!
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It's not the car, it's the people - Doug Johnson 90 r/r "KEYS ON" nick named "T.L.B" |
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09-09-2013
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#7 |
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Join Date: Dec 2012
Location: NC
Posts: 1,786
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Re: If/When you go to siamesed Intakes?
Anyone done a bench flow test on this?
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I'm getting my snappics / threads removed blindly as fast as I can, to get in compliance with copyright / license TOS on the boards here (lots of FSM pages and other copyright / license violations on my part; sorry guys). And thanks to all the guys who didn't whine when I posted those FSM copyrighted / licensed stuff in my threads... ( :thumbsup: [b]and to think I complied with a mod's request to delete a pic of him in a Challenge Car in NCM Museum, so he wouldn't get in hot water)[/b] Thanks to several guys here for sending parts FREE; BearlyFlying, WeGone, Geezer, GoldCylon, and more there, TonyD, mike100, fletchusmc... 1990 #2794; 4L60e Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless, Power Effects 3" [IMG]https://lh5.googleusercontent.com/-GHpfzty7DVU/UQn-0Ru2xAI/AAAAAAAAA14/08mz1p4QLD4/s445/Screenshot-5.png[/IMG] |
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09-10-2013
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#8 | |
Join Date: Jul 2005
Location: Cresson, TX
Posts: 970
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Re: If/When you go to siamesed Intakes?
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Ron Hanselman Founding Member #80 CM Lifetime Member #1093 1991 #383 Twin Turbo 1993 #099 Ruby, Jeal 368 w/Snake Skinner body 1961 White with Red Int |
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09-10-2013
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#9 |
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Join Date: Jun 2005
Location: pittsburgh
Posts: 4,633
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Re: If/When you go to siamesed Intakes?
you aint kiddin ron
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It's not the car, it's the people - Doug Johnson 90 r/r "KEYS ON" nick named "T.L.B" |
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09-10-2013
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#10 | |
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Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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Re: If/When you go to siamesed Intakes?
Ron, I would say this is more of a monorunner than siamesed.......they actually cut the runner out and reweld.....
Quote:
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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| ported heads, porting, siamesed |
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