On Tue, 21 Apr 1998 19:59:07 -0400 "Unger, Larry G"
>I've been working on a 'cold air box' to reduce the impact of the
>'A's engine bay temps ... like any engine, as the inlet temp
>increases the power fades rapidly. The 'A' is fitted with a cold
>air hose, but it stops at the radiator support ... current thought
>is fit a K&N filter to the end of the existing hose and extended
>the hose from the radiator support to a sealed box (with K&N stub
>stacks) fitted to the carbs ... very similar to the 'cold air box'
>that is fitted to the A.H. 100S. I trying to come up with a box
>that will accept the existing 4" hose, fit into the limited space
>in the 'A' engine bay, and that I can easily fabricate ... its the
>later that is giving me the most trouble ... ;^)
>Fitting a sealed air box with a good internal capacity and a cold
>air pipe that protrudes into the box will create a similar 'ram'
>condition. Since the air pipe protrudes into the air box it
>creates a step that allows the pressure pulses to travel inwards,
>but deters them from being able to reflect back out. This helps
>the incoming air as there aren't any negative waves resisting
>incoming flow, and adds a pressurizing effect. The 'ram'
>condition is created simply by air moving through the pipe into
>the box (drawn in by the induction process) ... not because intake
>for the cold air pipe be exposed to air flow (pushed in by the
>movement of the car) ... so its predictable and tuning the SUs
>won't be a problem.
>I'm also serioulsy considering having the cast-iron exhaust
>manifold JET-HOT coated.
>Check out ... http://www.goracing.com/jethot/sitemap.html
>> Safety Fast! ... firstname.lastname@example.org
>> '61 MGA 1600 MkII
Well thought out system Larry!
Gives me a couple of ideas. Heh, heh