Porting SR20 stock intake manifold - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

180sxqc · 03-15-2011, 08:53 PM

Any of you done this ?

Is this of any use??

Thanks

jacobs13 · 03-16-2011, 12:50 PM

You mean port match?

180sxqc · 03-16-2011, 04:54 PM

No I meant porting but I'll read about port matching!

anton1o · 03-17-2011, 06:36 AM

Possibly be cheaper to just buy an aftermarket low mount manifold..

180sxqc · 03-17-2011, 01:16 PM

We're talking about intake manifold here

240sx123$ · 03-17-2011, 01:28 PM

There are gains to be had by doing this, but if you arent sure what youre doing, youll probably do more harm than good (as far as actually porting it). If anything, Id deburr the inside of the manifold, and leave anything else to someone who knows wtf theyre doing. Remember each runner needs to match, and an absolutely smooth surface does not guarantee better flow.

besTint · 03-17-2011, 01:48 PM

i did my greddy manifold to match the 70mm throttle body and it was not easy. alot harder than i thought it would be but i got it done. i dont know how much room there is to port a stock intake manifold though. i would just get a ISIS intake manifold which is a greddy replica or save up and just get a greddy manifold. you can find some pretty good deals on zilvia for intake manifolds.

repda916 · 03-17-2011, 01:57 PM

I would leave that up to the pros.

you can clean the burs on the inside but when you start messing with the ports themselves you could mess something up if your not sure what you are doing.

03-15-2011, 08:53 PM	#1
180sxqc Zilvia Member Join Date: Sep 2009 Location: Québec, Canada Age: 33 Posts: 177 Trader Rating: (3) Feedback Score: 3 reviews	Porting SR20 stock intake manifold Any of you done this ? Is this of any use?? Thanks

03-17-2011, 06:36 AM	#4
anton1o Zilvia Junkie Join Date: Jul 2008 Location: Melbourne, Australia Age: 35 Posts: 333 Trader Rating: (0) Feedback Score: 0 reviews	Possibly be cheaper to just buy an aftermarket low mount manifold.. __________________

03-17-2011, 01:48 PM	#7
besTint Post Whore! Join Date: Mar 2008 Location: Stanton, CA Posts: 2,641 Trader Rating: (81) Rides Gallery: besTint Feedback Score: 81 reviews	i did my greddy manifold to match the 70mm throttle body and it was not easy. alot harder than i thought it would be but i got it done. i dont know how much room there is to port a stock intake manifold though. i would just get a ISIS intake manifold which is a greddy replica or save up and just get a greddy manifold. you can find some pretty good deals on zilvia for intake manifolds. __________________ http://squarespokes.com/

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03-16-2011, 12:50 PM	#2
jacobs13 Zilvia FREAK! Join Date: May 2009 Location: Long Beach Age: 29 Posts: 1,061 Trader Rating: (27) Feedback Score: 27 reviews	You mean port match?

03-16-2011, 04:54 PM	#3
180sxqc Zilvia Member Join Date: Sep 2009 Location: Québec, Canada Age: 33 Posts: 177 Trader Rating: (3) Feedback Score: 3 reviews	No I meant porting but I'll read about port matching!

03-17-2011, 01:16 PM	#5
180sxqc Zilvia Member Join Date: Sep 2009 Location: Québec, Canada Age: 33 Posts: 177 Trader Rating: (3) Feedback Score: 3 reviews	We're talking about intake manifold here

03-17-2011, 01:28 PM	#6
240sx123$ BANNED Join Date: Jul 2010 Location: PA Posts: 603 Trader Rating: (2) Feedback Score: 2 reviews	There are gains to be had by doing this, but if you arent sure what youre doing, youll probably do more harm than good (as far as actually porting it). If anything, Id deburr the inside of the manifold, and leave anything else to someone who knows wtf theyre doing. Remember each runner needs to match, and an absolutely smooth surface does not guarantee better flow.

03-17-2011, 01:57 PM	#8
repda916 Zilvia Addict Join Date: Jun 2008 Location: cali Age: 29 Posts: 999 Trader Rating: (0) Feedback Score: 0 reviews	I would leave that up to the pros. you can clean the burs on the inside but when you start messing with the ports themselves you could mess something up if your not sure what you are doing.