I'd be curious where the crossover pipe would go. He
will be lucky enough to successfully thread the larger
daimeter pipe through the intricate labyrinth of the
frame without touching anything. (Causing rattles and
vibrations.) I don't know where the crossover would
go except perhaps above the axle. But you would net
little, if any, performance results. I'd suggest
taking a pass.
As I understand it (and will stand corrected if it is
not so) the Chrysler big block does not need crossover
pipes because blending of the exhaust pulses is
accomplished within the engine manifolding. I have an
Imperial and a New Yorker with duals. Neither has a
crossover and both are nearly silent at idle with a
quiet V8 throb - not the sound of two wheezing
4-cylinders, the reason for doing a crossover.
I know Lincoln engines used crossover pipes - without
them they sounded all wrong - but Chrysler RB engines
never needed them to my knowledge. Sounds like you've
got an Alabama good ol' boy muffler man used to
working on Fords!
As for resonators, by all means use them and use
mufflers as close to original spec as possible. The
combo gives a great sound under acceleration, and
whisper quiet cruising. Remember, with your top up,
it is louder inside than a sedan. Having the addition
of a loud exhaust booming and droning at you at
highway speed would quickly become annoying.
There was nothing wrong with the original exhaust
design. I would suggest you stick with it and not
reinvent the wheel. Unlike the dual braking system,
there is little, if any, benefit to be gained.
Chris H.
60 NY T&C
66 Crown Convertible
66 LeBaron (soon to get duals - with no crossover
pipe)
--- Greg and Russell <65luxuryliner@xxxxxxxxxxxxx>
wrote:
> Hi Folks!
>
> Well now that the alternator thread is winding down,
> I would like to pose a few questions to the list
> about my exhaust system that is soon to be
> fabricated and installed. Many of you on the list
> may disagree but I have listened to many mechanics
> and machine shop owners tell me over and over to use
> 2 1/4" pipes rather than the factory installed 1
> 7/8". Today my mechanic neighbor next to my
> business told me not to use the resonators because
> they cut down considerably on the horsepower. He
> said I should just use mufflers... a brand called
> "Sonic" that has "better air flow" and I wouldn't
> need resonators if I used this brand. I have
> changed the brake system from single to dual, I have
> used stainless brakelines and I have painted the
> ribs of the convertible top Cummins Beige to blend
> better with the underside of my putty colored
> convertible top. I think theAACA judges have
> already disqualified me at this point, so I am not
> concerned about things being exactly as they were in
> Sept. of "64 when the car was new.
>
> Any thoughts, comments about this system I have
> mentioned? Also is there anyway to fabricate an X
> crossover pipe in the exhaust pipes behind the
> engine or is there just not enough room? The same
> mechanic showed me an example of one he had laying
> on his bench and it didn't look all that large. He
> insisted I would get better performance and 15 more
> horsepower if I could install one of these crossover
> pipes. I am not mechanical so I am relying on the
> advice of those of you who are.
>
> Thanks in advance.
>
> Greg
> '65 Crown convt. (moving through its restoration
> pretty quickly now)!
>
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