Skunk2 intake manifold - S2KI Honda S2000 Forums



Skunk2 intake manifold

Reply
 
 
 
Thread Tools
Old 01-26-2016, 02:48 PM   #1
Registered User
Thread Starter
 
Join Date: Jan 2016
Posts: 79
Thanked 0 Times in 0 Posts
Default Skunk2 intake manifold

Hey guys, just heard back from Skunk2.

They say their S2000 Ultra Series intake manifold for the S2K will go on sale in April, currently they're just doing a few final tweaks on it. I've not been told of any pricing info, but I assume it's going to be similar to the K series, and its going to have the same design as the ultra series for the K series.

I'm excited!, combine the skunk2 intake with a set of stage 2 cams from Skunk2 or Brian crower, a HFC, and of course a flash-pro tune, and I'm happy.
Szoylent Green is offline   Reply With Quote
Old 01-26-2016, 03:37 PM   #2
 
zeroptzero's Avatar
 
Join Date: Oct 2009
Location: Out There
Posts: 13,664
Thanks: 0
Thanked 11 Times in 11 Posts
Default

I always hoped someone would try to improve upon the intake manifold, but I'm not sure there is much of a gain to be found there. Skunk2 didn't do so well with their exhaust manifold development, does anyone think they can find hidden power in the intake manifold. Curious to see it though.
zeroptzero is offline   Reply With Quote
Old 01-26-2016, 04:00 PM   #3
Registered User
Thread Starter
 
Join Date: Jan 2016
Posts: 79
Thanked 0 Times in 0 Posts
Default

There's actually an intake design I want to try, basically it's a modification of the factory intake.

The plenum is too small on the factory intake, and this prevents the optimal intake resonance from occurring. Not a big deal on a boosted or stock engine, but I think it's probably a limiting factor once you've improved the exhaust and have a set of cams.

I'm looking at sawing the plenum off the stock intake, and welding a plate onto to runners, then increasing the plenum size by about 20% and having it machined to bolt back on.

Just need to get ahold of an AP2, preferably DBW intake to try this design.

I've made a model of the intake in Comsol (a fluid dynamics package), and i think this basic change should significantly increase and even out flow, as the model shows uneven flow berween cyl1 and cyl2-4.
Szoylent Green is offline   Reply With Quote
Old 01-27-2016, 04:16 PM   #4
Member
 
ConeKiller2's Avatar
 
Join Date: Apr 2003
Location: weston
Posts: 376
Thanks: 0
Thanked 0 Times in 0 Posts
Default



I have an OEM dbw intake that has been ported for a bigger to and adapter if your ibrerested
ConeKiller2 is offline   Reply With Quote
Old 01-27-2016, 11:07 PM   #5
 
Join Date: Mar 2005
Posts: 280
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Are intake manifolds a major bottleneck for NA applications? I know most people praise bolt ons + lowered VTEC, haven't really heard much about intake manifolds though. Looking forward to this.
steven88 is offline   Reply With Quote
Old 01-28-2016, 02:12 AM   #6
Registered User
 
Join Date: Dec 2013
Posts: 78
Thanks: 0
Thanked 0 Times in 0 Posts
Default

I've been really looking forward to this as there is really nothing in the market for us. I'm sure we will see positive results from intake
Can't wait to get mine lol
Nsanes2k is offline   Reply With Quote
Old 01-28-2016, 02:17 AM   #7
Registered User
 
Join Date: Dec 2013
Posts: 78
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Quote:
Originally Posted by zeroptzero View Post
I always hoped someone would try to improve upon the intake manifold, but I'm not sure there is much of a gain to be found there. Skunk2 didn't do so well with their exhaust manifold development, does anyone think they can find hidden power in the intake manifold. Curious to see it though.

Skunk 2 ultra manifold has proven to provided gains in k/d/b series I dont see it not provide the same for us.
Nsanes2k is offline   Reply With Quote
Old 01-28-2016, 07:24 AM   #8
 
mixwell's Avatar
 
Join Date: Sep 2012
Posts: 319
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Skunk2 Ultra manifold is modular. you can take the runners apart from the plenum. makes it easier to port. add spacers for a bigger plenum.

this is the manifold that you'll grow with, instead of replacing.
mixwell is offline   Reply With Quote
Old 01-28-2016, 07:58 AM   #9
Registered User
Thread Starter
 
Join Date: Jan 2016
Posts: 79
Thanked 0 Times in 0 Posts
Default

Based on just my measurements and calculations (I have not built or tested other manifolds on the S2K, just calculations), the factory manifold is pretty well designed, but there's a lot of room for improvement.

I don't think a different manifold would improve boosted engines much, as boosted engines rely mostly on flow, and don't use intake resonance much to deliver power. The factory manifold actually has really good flow characteristics, so its great for boost. However, us NA engine folks rely in intake resonance to deliver power. The factory manifold is close, but it does not have even runners, and the plenum volume is too small, this causes intake pulses to interfere with each other, and reduce resonance, and the plenum wall is too close to the intake tubes which I think causes some weird interference in the plenum chamber.

The intake is certainly not the first thing I think could be improved, in order of mods, what I think makes the most sense is:
1: Flash-pro
2: air filter
3: exhaust (HFC)
5: intake manifold
4: cams (Brian Crower stage2 or Skunk2)

Again, I haven't actually tested any manifolds, but I've made some careful measurements of a '04 factory manifold, and created a model in Comsol (fluid dynamics package), computer models are a huge help, but they need to be tested before anything absolutely definitive can be said.

I'm just guesstimating here, but I'd guess that with a tune and exhaust, an improved intake is maybe worth 15-25 HP. If you have a built engine, stroked, lots of headwork, cams, that value would certainly go up.
Szoylent Green is offline   Reply With Quote
Old 01-28-2016, 10:43 AM   #10
Community Organizer
 
s2000Junky's Avatar
 
Join Date: Jun 2007
Posts: 24,775
Thanks: 0
Thanked 38 Times in 37 Posts
Default

Keep working on it fellas Some of us OG's are still waiting for the top end of this car to get properly and definitely unlocked. I'm still running the factory cams, intake and header. 80% of the performance improvement has been in the midrange so far, with all the lower hanging fruit picked.
s2000Junky is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
FS: 2002 S2000, GPW red/black interior RIDGERCR Upstate New York Classifieds 57 04-21-2017 02:39 PM
Fs: Ny --gpw ap1 $18,000 obo RIDGERCR Cars for Sale 41 04-21-2017 02:26 PM
FL - Pfab front facing manifold turbo kit + extras S2KCHRIS305 Member S2000 Classifieds and For Sale 16 01-21-2017 08:44 AM
2017 S2K Challenge discussion anorexicpoodle S2000 Racing and Competition 20 01-11-2017 08:31 AM
TX: 2005 Silverstone - 89,000 - Hardtop Kuro! Cars for Sale 8 12-05-2016 01:05 PM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -8. The time now is 04:12 AM.


 
  • Ask a Question
    Get answers from community experts
What's your question?
Send