Sheet Metal Intake - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

s15dude · 02-16-2002, 05:10 PM

I was wondering, what componets are in an intake manifold needs and how it needs to be designed to work right. My dad has a metal shop and I have already figured out how to make a turbo exhuast manifold, but I was wondering if I could make an intake manifold too. Any ideas? Thanks.

White240sx · 02-16-2002, 09:28 PM

N/A or Turbo? Turbo is easy, just weld stacks to a plenum and make sure it can handle the boost pressures. http://www.sdsefi.com/techinta.htm this place tells you how to do it and lists needed supplies.

N/A is another story. Here is where you would have to build a "tuned" manifold. Plenum volume and runner length, diameter, and shape all have to take into account resonance tuning and reversion for maximum potential power. You also need to take into account cam dimensions and timing as well as exhaust manifold design when you work on the intake manifold. In short it is possible, but to be truly successful you will need a very firm grasp on the workings on an N/A motor.

onebadm5 · 02-16-2002, 11:32 PM

mmmm, sheetmetal intakes. yum

White240sx · 02-16-2002, 11:52 PM

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote </td></tr><tr><td id="QUOTE">Quote: from onebadm5 on 11:32 pm on Feb. 16, 2002
mmmm, sheetmetal intakes. yum</td></tr></table><span id='postcolor'>

Fogger nozzles.... is that a drag car? I didn't know that people saw BMW as strong quarter mile competitors.

s15dude · 02-17-2002, 02:59 AM

Thanks for the cool info. I figure that I can save big $$ if I make my own manifolds.

02-16-2002, 05:10 PM	#1
s15dude Zilvia Junkie Join Date: Oct 2001 Location: San Diego Age: 41 Posts: 503 Trader Rating: (0) Feedback Score: 0 reviews	I was wondering, what componets are in an intake manifold needs and how it needs to be designed to work right. My dad has a metal shop and I have already figured out how to make a turbo exhuast manifold, but I was wondering if I could make an intake manifold too. Any ideas? Thanks.

02-16-2002, 09:28 PM	#2
White240sx Zilvia Member Join Date: Nov 2001 Posts: 219 Trader Rating: (0) Feedback Score: 0 reviews	N/A or Turbo? Turbo is easy, just weld stacks to a plenum and make sure it can handle the boost pressures. http://www.sdsefi.com/techinta.htm this place tells you how to do it and lists needed supplies. N/A is another story. Here is where you would have to build a "tuned" manifold. Plenum volume and runner length, diameter, and shape all have to take into account resonance tuning and reversion for maximum potential power. You also need to take into account cam dimensions and timing as well as exhaust manifold design when you work on the intake manifold. In short it is possible, but to be truly successful you will need a very firm grasp on the workings on an N/A motor.

02-16-2002, 11:32 PM	#3
onebadm5 BANNED Join Date: Nov 2001 Posts: 678 Trader Rating: (0) Feedback Score: 0 reviews	mmmm, sheetmetal intakes. yum

02-16-2002, 11:52 PM	#4
White240sx Zilvia Member Join Date: Nov 2001 Posts: 219 Trader Rating: (0) Feedback Score: 0 reviews	</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote </td></tr><tr><td id="QUOTE">Quote: from onebadm5 on 11:32 pm on Feb. 16, 2002 mmmm, sheetmetal intakes. yum</td></tr></table><span id='postcolor'> Fogger nozzles.... is that a drag car? I didn't know that people saw BMW as strong quarter mile competitors.

02-17-2002, 02:59 AM	#5
s15dude Zilvia Junkie Join Date: Oct 2001 Location: San Diego Age: 41 Posts: 503 Trader Rating: (0) Feedback Score: 0 reviews	Thanks for the cool info. I figure that I can save big $$ if I make my own manifolds.