[Healeys] BJ8 Intake

[David Masucci]

Thank you Alan. That helps a lot.

Dave


----- Original Message ----- 
From: "'bluehealey'" <bluehealey at gmail.com>
To: <drmasucci at comcast.net>
Cc: <healeys at autox.team.net>
Sent: Wednesday, June 01, 2011 4:14 PM
Subject: Re: [Healeys] BJ8 Intake


I can confirm there is a wall between runners 3 and 4 in the main runner or 
'log'. It has hole of around 5/8" diameter drilled through it presumably to 
provide vacuum balancing.

AlanB - iPhone message.

On 1 Jun 2011, at 20:51, "David Masucci" <drmasucci at comcast.net> wrote:

> Hi Listers,
>
> For reasons I can explain later, I am doing some computer analysis on the 
> behavior of the BJ8 intake tract as it applies to the dynamics of the 
> airflow. Specifically I'm looking at modeling the behavior as the pulses 
> caused by valve closure send waves back into the manifold. I'm looking at 
> how it behaves compared to modern "tuned" runners/plenum manifolds.
>
> To complete my model I need one more bit of information. Its clear that 
> the front 3 runners and plenum section is a mirror image of the back 3. 
> Does anyone know if the front and back of the plenum section (the 
> rectangular box) is separated by a wall or septum? Or is the front and 
> back wide open.
>
> Thanks,
> Dave
> BJ8