Buttefly valve

Thread Tools
 
Search this Thread
 
Old 12-08-2008, 12:46 PM
  #1  
Instructor
Thread Starter
 
chirik's Avatar
 
Join Date: Jun 2006
Location: IL
Posts: 109
Likes: 0
Received 0 Likes on 0 Posts
Buttefly valve

Searched. How many buttefly valves in CL-S dual-stage intake manifold?

Just want to double check there is only one, right? I know RL uses two buttefly valves Just curious when IMRC actuator engage does it open one buttefly valve or there two?
Old 12-08-2008, 02:24 PM
  #2  
Instructor
Thread Starter
 
chirik's Avatar
 
Join Date: Jun 2006
Location: IL
Posts: 109
Likes: 0
Received 0 Likes on 0 Posts
I can see two IMRC plates in center chamber. But where is the buttefly valve?
Old 12-08-2008, 03:41 PM
  #3  
Senior Moderator
iTrader: (2)
 
NSXNEXT's Avatar
 
Join Date: May 2000
Location: where the weather suits my clothes
Age: 55
Posts: 27,921
Received 1,080 Likes on 661 Posts
Just one.
Old 12-08-2008, 05:29 PM
  #4  
Three Wheelin'
iTrader: (1)
 
poisx7's Avatar
 
Join Date: Nov 2003
Location: DARK ALLY
Posts: 1,558
Received 4 Likes on 4 Posts
hey what he said ^

did not know the RL uses two. wonder why unless they open at diffrent times ??
Old 12-08-2008, 06:09 PM
  #5  
Instructor
Thread Starter
 
chirik's Avatar
 
Join Date: Jun 2006
Location: IL
Posts: 109
Likes: 0
Received 0 Likes on 0 Posts
Cool thanks.

poisx7, I meant to say the new RL ('09) has dual butterfly valves.

Originally Posted by hondanews.com
The new 3.7L V-6 uses a dual-stage intake manifold that is designed to deliver maximum airflow to the cylinders across the full range of engine operating rpm. The 2-piece manifold is constructed of cast-magnesium to be very light. Within the manifold are two separate butterfly valves that are operated electrically by the engine's powertrain control module (PCM) to provide two distinct modes of operation via changing plenum volume and intake airflow routing.
Link - Acura Media Newsroom: 2009 Acura RL - Powertrain
Old 12-08-2008, 09:41 PM
  #6  
Blown is Best
 
Allout's Avatar
 
Join Date: Jun 2002
Location: Fresno, CA
Age: 63
Posts: 4,437
Received 15 Likes on 14 Posts
Originally Posted by chirik
I can see two IMRC plates in center chamber. But where is the buttefly valve?
Those two plates you see are both on the same rod activated by the IMRC.
Old 12-12-2008, 12:24 PM
  #7  
Safety Car
 
allmotor_2000's Avatar
 
Join Date: Aug 2002
Location: So Cal
Age: 49
Posts: 4,910
Likes: 0
Received 1 Like on 1 Post
I'd remove them... more airflow :-D
Old 12-12-2008, 01:53 PM
  #8  
Three Wheelin'
 
CH46ESeaKnight's Avatar
 
Join Date: Oct 2007
Location: Merritt Island FL
Age: 46
Posts: 1,501
Received 5 Likes on 5 Posts
Originally Posted by allmotor_2000
I'd remove them... more airflow :-D

Then you loose low end TQ.

I drove with the IMRC pinned open for about a month before I bought a new IRMC control valve. Once I put it back in and un pinned it, I could tell a diff in low end. The car already suffers from low TQ, why would you want to make it worse?
Old 12-12-2008, 04:02 PM
  #9  
Safety Car
 
allmotor_2000's Avatar
 
Join Date: Aug 2002
Location: So Cal
Age: 49
Posts: 4,910
Likes: 0
Received 1 Like on 1 Post
Yeah, but when you are at the strip I assume you are not below 5.5K RPM!?!
Old 12-12-2008, 06:01 PM
  #10  
Three Wheelin'
 
CH46ESeaKnight's Avatar
 
Join Date: Oct 2007
Location: Merritt Island FL
Age: 46
Posts: 1,501
Received 5 Likes on 5 Posts
Originally Posted by allmotor_2000
Yeah, but when you are at the strip I assume you are not below 5.5K RPM!?!

True, true.
Old 12-12-2008, 08:49 PM
  #11  
THE J35A2...
 
SIRSIG's Avatar
 
Join Date: Jun 2005
Location: L.A. SoCal
Age: 38
Posts: 796
Likes: 0
Received 1 Like on 1 Post
Originally Posted by CH46ESeaKnight
Then you loose low end TQ.

I drove with the IMRC pinned open for about a month before I bought a new IRMC control valve. Once I put it back in and un pinned it, I could tell a diff in low end. The car already suffers from low TQ, why would you want to make it worse?
add IM spacers gives you more torque
Old 12-12-2008, 09:28 PM
  #12  
Three Wheelin'
 
CH46ESeaKnight's Avatar
 
Join Date: Oct 2007
Location: Merritt Island FL
Age: 46
Posts: 1,501
Received 5 Likes on 5 Posts
Originally Posted by SIRSIG
add IM spacers gives you more torque
Are you talking about something like the 1/4 inch spacer from outlaw or P2R?
For the intake runner?
Old 12-13-2008, 12:38 AM
  #13  
Suzuka Master
iTrader: (10)
 
aznboi2424's Avatar
 
Join Date: Dec 2006
Location: Elk Grove, CA
Age: 35
Posts: 6,287
Received 208 Likes on 187 Posts
232 lb/ft from 3.5k to vtec is quite a bit of torque. especially for a honda engine.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Mike734
2G RL Tires, Wheels & Suspension
4
12-10-2021 01:25 PM
fifer16
1G RL (1996-2004)
8
10-05-2015 10:12 AM
shawnafoxx
1G RL (1996-2004)
2
09-28-2015 12:33 PM
prbori
3G TL Problems & Fixes
1
09-27-2015 01:37 AM
MilanoRedDashR
3G TL Problems & Fixes
5
09-24-2015 11:04 PM



Quick Reply: Buttefly valve



All times are GMT -5. The time now is 07:26 AM.