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Re: Cold Air Joy was Re: Engine mods and reliability

To: "'MGS'" <mgs@autox.team.net>
Subject: Re: Cold Air Joy was Re: Engine mods and reliability
From: Eric <eric@erickson.on.net>
Date: Tue, 01 Oct 2002 23:58:02 +0930
Charles & Peggy Robinson wrote:
> 
>   Ha, ha, I get a real kick out of this thread!  As you say, Eric,
> that's not a new concept.
> 
>   My 260Z had a fresh air intake connected to the air meter inlet.  Our
> Yugo has a fresh air intake connected to the air filter housing.  Those
> are from the factory.  My B has a hole in the radiator shroud on the
> carb side for fresh air intake.  That one's from Charley's Garage!
> 

Yeah, that little hole would match up with the 'horn' on the SU covers
(how effectively, I don't know, though) but when you go and mess things
up like I did by removing the standard SU filters for a groovy looking
PiperCross filter you gotta do something about it.  And I did :-)

I am amazed that I see many cars with fancy new aftermarket filter
setups like mine - just sucking in the superheated air from right above
the extractors/header or simply the exhaust pipe as it runs down from
under the carbies. I thought about it and it was obvious - I just didn't
DO anything about it.  And when I did, I am glad that I had a comparison
of before and after, because I might not have believed it otherwise.

$20 and that silly situation is rectified.  Quite a few bucks more and
you have something more sophisticated, but also something that requires
a little more tuning thought and effort, as you say.


>   Eric, you can run into lean-out problems if you direct too much air
> into the carbs at high speeds, so you may be better off to leave your
> good idea as it is.  Bill S. might know a bit more about that......
> 

... and that is my thought - hence no actual cold-air box (but I
possibly might try to grab the air a little more effectively and neatly
from the grill).  I was listening to my fellow club member who built his
own fuel-injection system for his racing 'B and my mind fuzzed over a
bit at the decisions he was making about the metering of the air and
fuel and the programming of his computer - plus the decisions the
computer made on its own.  

Urrrk - computers?  Now that is NOT a 'B :-)



-- 
Eric
'68MGB MkII
Adelaide, South Australia

"Nothing overshadows truth so completely as authority"
ALBERTI

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