|
|
|
|
Thread Tools | Display Modes |
09-17-2010, 12:34 PM | #51 |
Scooby Guru
Member#: 92582
Join Date: Aug 2005
Chapter/Region:
MWSOC
Location: IA
Vehicle:* |
Well even after reading about it, I don't understand how it effects air flow. I could see with accoustics or something like a subwoofer box or instrument. Also, Verocious built that?
* Registered users of the site do not see these ads.
|
09-17-2010, 07:21 PM | #52 |
Scooby Newbie
Member#: 176068
Join Date: Mar 2008
|
Yes, that was built at Verocious almost 2 years ago now. Cant really help you on the resonance vs flow topic though.
|
09-18-2010, 12:05 AM | #53 |
Scooby Guru
Member#: 140444
Join Date: Feb 2007
Chapter/Region:
NWIC
Location: Near Seattle, WA
Vehicle:05 Stage Free LGT ATP 3076, 6MT, AVO FMIC |
Keep in mind that the intake valves are only open for about a quarter of the time, so the air in the runners is rushing at them and bouncing off of them frequently. The merit of the flat wall idea still isn't all that clear to me though, as that wave is still going to bounce off something in the plenum regardless (other than the portion that tries to go 'upstream' toward the throttle body).
|
09-22-2010, 01:13 AM | #54 | |
Scooby Specialist
Member#: 33458
Join Date: Feb 2003
Chapter/Region:
Tri-State
Location: PA
Vehicle:Your BOV sounds lame 93 RX7+09 Forester |
Quote:
The key is that it will only work in a certain RPM window based on the runner length.*** I don't know the specifics, but there is a pile of math involved. Go take a look at some high-rpm oriented manifolds, such as those for an EVO, Honda, or sportbike. They will all have short runners with some sort of face (wall) opposite the intake runner trumpet. I'd like to see something like this for a Subaru. ***(It can also happen on different "orders." The wave can bounce off the closed valve, wall, and then the (still) closed valve again, then wall again, before being ingested as the valve opens on the waves 2nd hit) EXAMPLES: B-Series manifold optimized for 7000-10,000 rpm. Power up to 9500rpm range The most baller of them all: The Mazda R26B manifold. It has variable length intake runners so that instead of a single perfect tuned runner length, it can shorten the runner as RPMs increase and "follow" the perfect runner length for maximum effect at all RPM. I hope this makes sense. I'm falling asleep as I type... |
|
09-22-2010, 07:30 PM | #55 |
Scooby Guru
Member#: 104878
Join Date: Jan 2006
Chapter/Region:
TXIC
Location: copperas cove
Vehicle:02 wrxbastardchild aw, MPS 2.34 breaking in |
Its harder to do that for a subaru manifold as we are limited to a min/max size restriction with the 2 heads X inches apart. Unless you do dual tb's.
|
11-26-2010, 12:28 AM | #56 |
Scooby Newbie
Member#: 138786
Join Date: Jan 2007
Chapter/Region:
RMIC
Location: subaruville, CO
Vehicle:05 obp wrs ^.- rally time |
edit....
|
11-26-2010, 12:32 AM | #57 |
Scooby Specialist
Member#: 130997
Join Date: Nov 2006
Location: Denver, Co.
|
Here is a few of my favorite manifolds I have built.
|
11-26-2010, 12:39 PM | #58 |
Scooby Newbie
Member#: 207830
Join Date: Apr 2009
Chapter/Region:
MWSOC
Location: Saint Joseph, MI
Vehicle:2002 Precision Built WRB |
Interesting setups guys.. Can't wait to unveil mine hahaha
|
11-29-2010, 01:27 AM | #59 |
Scooby Newbie
Member#: 131539
Join Date: Nov 2006
Location: bay shore, NY
Vehicle:02 wrx BLUE |
|
12-26-2010, 10:02 PM | #60 |
Scooby Newbie
Member#: 255772
Join Date: Aug 2010
|
|
12-26-2010, 10:42 PM | #61 |
Scooby Specialist
Member#: 236927
Join Date: Jan 2010
Chapter/Region:
NESIC
Location: Oakville CT
Vehicle:2015 BRZ 86 GL Hatch 1984 BRAT |
^^ Those are really good looking welds.
|
12-27-2010, 07:09 PM | #62 |
Scooby Specialist
Member#: 141952
Join Date: Feb 2007
Chapter/Region:
MWSOC
Location: milwaukee'ish
Vehicle:2023 M340i |
not custom and not for a subaru, but i like showing it off.
driven innovations large plenum manifold for my evo. btw, motor is about 136 ci and the intake plenum volume is about 300 ci. it *should* work quite good. Last edited by n2oiroc; 12-27-2010 at 09:37 PM. |
12-28-2010, 07:12 AM | #63 |
Scooby Newbie
Member#: 207830
Join Date: Apr 2009
Chapter/Region:
MWSOC
Location: Saint Joseph, MI
Vehicle:2002 Precision Built WRB |
Pretty legit. I still think not to many people have anything on Suby Drew or myself HAHAHAHA!!!!
|
12-28-2010, 09:02 AM | #64 | |
Scooby Specialist
Member#: 5810
Join Date: Apr 2001
Chapter/Region:
Tri-State
Location: Easton PA
Vehicle:2001 S366 2.5RS |
Quote:
Havent seen yours yet |
|
12-28-2010, 09:25 AM | #65 |
Scooby Specialist
Member#: 32609
Join Date: Feb 2003
Vehicle:2005 saab 9-2x rhd ej20tt sold... |
|
12-29-2010, 07:10 AM | #66 |
Scooby Newbie
Member#: 207830
Join Date: Apr 2009
Chapter/Region:
MWSOC
Location: Saint Joseph, MI
Vehicle:2002 Precision Built WRB |
|
12-29-2010, 10:04 AM | #67 | |
Scooby Specialist
Member#: 130997
Join Date: Nov 2006
Location: Denver, Co.
|
Quote:
Suby drew's is much nicer then yours and I wouldn't even put them in the same catogory. His incorporates some very nice aspects and is well thought out. I personaly don't like how the back of his main plenum is flat and would cause turbulance making the abrupt 90* turns to either side but the volocity stacks in the secondary plenum's is a very nice touch. |
|
12-29-2010, 11:29 AM | #68 | |
Scooby Newbie
Member#: 207830
Join Date: Apr 2009
Chapter/Region:
MWSOC
Location: Saint Joseph, MI
Vehicle:2002 Precision Built WRB |
Quote:
Interesting |
|
07-10-2011, 10:03 PM | #69 |
*** Banned ***
Member#: 124663
Join Date: Aug 2006
Chapter/Region:
South East
Location: Nashville
Vehicle:2003 AW WRX 2008 GG Evo X MR |
Edited.
Last edited by 5lipstream; 07-19-2011 at 09:58 PM. |
07-11-2011, 03:23 PM | #70 |
Scooby Guru
Member#: 157348
Join Date: Aug 2007
Location: OOoOuuUUUGGGHH!!!!!
Vehicle:I Thlammed My Penith in the Car Door |
|
07-11-2011, 08:17 PM | #71 |
Scooby Guru
Member#: 178811
Join Date: Apr 2008
Chapter/Region:
MAIC
Location: MoCo
Vehicle:2011 White Corolla Over 400hp |
I'm going to have to agree.
That's bonkers! |
07-11-2011, 09:36 PM | #72 |
Scooby Newbie
Member#: 286614
Join Date: Jun 2011
Chapter/Region:
Tri-State
Location: NY
Vehicle:2005 baja sport black/charcoal grey |
i see all you boosted guys making intake manifolds, would there be any benefit to designing one for my 2.5 N/A?
|
07-12-2011, 06:20 AM | #73 |
Scooby Newbie
Member#: 179120
Join Date: May 2008
|
Made this for my VQ30 twin turbo E30 BMW.
|
07-15-2011, 08:30 PM | #74 |
Scooby Guru
Member#: 157348
Join Date: Aug 2007
Location: OOoOuuUUUGGGHH!!!!!
Vehicle:I Thlammed My Penith in the Car Door |
VQ30? In my BMW? It's more likely than you think.
|
07-18-2011, 08:11 AM | #75 |
Scooby Specialist
Member#: 45494
Join Date: Oct 2003
Location: glen rock, pa
Vehicle:95 impreza L awd green |
Since we are on the topic of manifolds.
Has anyone noticed that the SVX makes really good power being NA with the same basic setup as a ej22. Now the heads are more like what is in a turbo head but the only real difference in is the intake manifold. It has the dual TB and a butterfly valve that opens at high rpm joining both sides of the plenums together. Do anyone have something like that made? |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Roller Barrel ITBs and Custom Intake Manifold Design | wgknestrick | Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) | 277 | 10-11-2010 08:06 AM |
Post your custom intake heat shields | sc00ter | Interior & Exterior Modification | 10 | 01-19-2010 11:42 PM |
Custom Intake Manifolds??? | schvanos | Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) | 13 | 10-15-2005 09:52 PM |
Custom Intake Manifold (gauging interest) | Tattoo Collector | Normally Aspirated Powertrain | 37 | 02-10-2003 06:49 PM |
Custom Intake Manifold | N/A01RS | Normally Aspirated Powertrain | 2 | 08-22-2002 05:05 AM |