I found that with chrome wire air filters my car would not go above 400 rpm
in normal driving conditions. Swap to the standard and it perfectly
normal.
With this ram air set up the pressure of the air going into the carb
chainges radicly. Constant depression carbs like the SU don't like that.
-----Original Message-----
From: Atwell Haines <carbuff@nac.net>
To: nikolai jaremka <njaremka@yahoo.com>; spitfires@Autox.Team.Net
<spitfires@Autox.Team.Net>
Date: 24 October 1998 16:34
Subject: Re: ram air spitfire...
>At 04:08 AM 10/23/98 -0700, nikolai jaremka wrote:
>>... something that i didn't expect. i noticed a little
>>improvement in crusing power, but whenever i wanted to change gears,
>>there was a hesitation from the engine. and as i came up to stop
>>signs, the car would stall out.
>>
>>so, the moral of the story is this:
>>i learned that a spitfire carb is not designed for ram-air.
>
>Hold on Nik, don't give up so fast.
>
>As several Listers that have converted to K & N air filters have found, the
>Spit induction system is very sensitive to the amount of air that travels
>through it. Perhaps you should attempt to make some adjustments before you
>throw away your ram air system.
>
>Sounds as if you are getting a lean condition now. (More air but still the
>same old amount of fuel.) You didn't mention which carb you are running,
>but perhaps different jetting is in order.
>
>Now, I'm no expert in carbs (my trials and errors over the past year with
>two ZS carbs should attest to this) but there ARE folks who know British
>induction inside and out. The one that comes to mind is "Mr. S.U.", Joe
>Curto, of College Point, NY. He knew the answers to _my_ questions off the
>top of his head, and refused my offerings of cash... The number is
>718-762-SUSU (7878). For the price of a long distance phone call, he might
>be able to get you on track.
>
>I would have a catalogue in front of you, or maybe the Haynes Weber book
>(covering also SU and ZS), when you call. As usual, I have no financial
>interest yada yada yada...
>
> >if anyone
>>would like to buy the setup from me, forget it. i'll GIVE it to you!
>>just remember, before you install it, it won't work.
>
>Oh Yeah?
>
>
>
>
>
>
>Atwell Haines
>'79 Spitfire FM96062 UO
>(57 HP)
>
>Succasunna, NJ USA
>
>The One Immutable Rule of Automotive Satisfaction:
>"It is more fun to drive a slow car fast than to drive a fast car slow"
>- Cory Farley in Autoweek, 8/17/98
>
>
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