David Vizard (of course) has done test and development on pretty much
everything to do with engines including exhaust systems. Someone posted
this scan of a Circle Track magazine article on exhaust systems by
David, and on page 10 there is mention of balance tubes - not
specifically crossover pipes but some of the principles are the same.
http://www.geocities.com/motorcity/track/6992/vizard.html
If the link gets broken by the mailer then search Google for "David
Vizard exhaust".
Theo
> -----Original Message-----
> From: tigers-bounces@autox.team.net
> [mailto:tigers-bounces@autox.team.net] On Behalf Of Jim
> Sent: December 11, 2008 8:08 AM
> To: 'Cullen McCann'; tigers@autox.team.net
> Subject: Re: [Tigers] VIN # INFO
>
> I've always been of the understanding that a given engine
> would produce slightly more torque with a crossover tube...
> and that the closer it was to the engine, the more effective
> it would be... Having said that, I haven't seen any data to
> back it up...!
>
> Jim
> B38200446
>
>
>
> -----Original Message-----
> From: tigers-bounces@autox.team.net
> [mailto:tigers-bounces@autox.team.net]
> On Behalf Of Cullen McCann
> Sent: December 11, 2008 6:53 AM
> To: tigers@autox.team.net
> Subject: Re: [Tigers] VIN # INFO
>
> ....at least in late model performance like my 5.0 mustang,
> we have "H"
> pipes
> and "X" pipes...and I think its meant to equalize the
> harmonics of the exhaust pulsing between the two
> banks...which improves exhaust flow effeciency...very
> slightly I'll bet. It was said earlier and I'll agree, the
> engines do seem to sound alot better with it installed...IMO
>
>
>
>
>
>
> Subject: Re: [Tigers] VIN # INFO
>
> pardon my ignorance. what is the purpose of a crossover pipe
> between the exhausts, anyway?
> Tigers@autox.team.net
> http://autox.team.net/mailman/listinfo/tigers
>
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