Engine and Transmission Tech

tips, technology, tools and techniques related to vehicle driveline components

Go to Thread: Previous•Next
Go to: Forum List•Message List•New Topic•Log In


lars49
Larry Barnes
Colorado Springs
(177 posts)

Registered:
06/11/2009 02:12PM

Main British Car:
1980 MGB GM LA1 3400 V6

authors avatar
Air Intake Accumulator ??
Posted by: lars49
Date: September 30, 2012 12:52PM

I was under the hood of my Tahoe the other day taking the air intake off. I noticed that the ducting from the filter instead of running directly into the intake plenum has what appears to be an accumulator molded into the duct at the plenum intake. I suppose it’s for modulating the plenum pressure during acceleration and deceleration. I’m wondering if it would be a worthwhile addition to the conversion.


DiDueColpi
Fred Key
West coast - Canada
(1366 posts)

Registered:
05/14/2010 03:06AM

Main British Car:
I really thought that I'd be an action figure by now!

authors avatar
Re: Air Intake Accumulator ??
Posted by: DiDueColpi
Date: October 03, 2012 02:21AM

Hey Larry,
The intention of that "accumulator" is to attenuate the pulses of the intake to reduce their noise level.
It's just a specialized muffler tuned to a specific frequency.
However, the two stroke world uses something similar called a "boost bottle" to tune the intake for more power at specific rpms.
Would it work on a four stroke engine? I don't really know. If it did the gain would be in a very narrow rpm band. And you would need 8 chambers. It would look pretty cool though.
Cheers
Fred


roverman
Art Gertz
Winchester, CA.
(3188 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: Air Intake Accumulator ??
Posted by: roverman
Date: October 03, 2012 11:34AM

Got megaphones ?



Edited 1 time(s). Last edit at 10/03/2012 11:34AM by roverman.
Get Your BritishV8 T-shirt by clicking here


lars49
Larry Barnes
Colorado Springs
(177 posts)

Registered:
06/11/2009 02:12PM

Main British Car:
1980 MGB GM LA1 3400 V6

authors avatar
Re: Air Intake Accumulator ??
Posted by: lars49
Date: October 03, 2012 01:38PM

Fred,

Thanks for the info. Do I really want to reduce the noise level on an MG with the lid down? Don't think it would make much difference.


Go to: Forum List•Message List•New User Registration•Log In
Sorry, only registered users may post in this forum.