[DeTomaso] 180 degree headers

[Charles Engles]

Dear Mike,

           You wrote:


> 8)  Power/torque benefits present in engineer-dork SAE papers, but not so
> much on engine/chassis dynos.  Last year Kirk Evans tested a single 351C
with a
> half-dozen or more Pantera exhaust systems on a dyno, including a 180
system.
> The horsepower spread between the best-performing (which happened to be
the
> 180s) and the worst-performing system was only NINE horsepower!!!!

$$$$$  Is that correct?    You're stating that in Kirk's apparently
extensive dyno testing of Pantera exhaust systems showed *only* a nine
horsepower difference.  An impressively small difference given the
reputation of 180s versus the "lesser" systems.  Any idea when the actual
test results will be published?



 180 systems
> were in vogue for a brief period during the early and mid '60s, but by the
> late '60s, Can-Am and Trans-Am engineers had figured out that the
advantages
> weren't worthwhile.  How many Can Am or Trans Am cars can you think of
that used
> 180 systems?  Zero.

$$$$$  It is discouraging when you bring up historical truths that are
refute contemporary hot rod opinions.........

          Impressed,  Chuck Engles