> On 24 Oct 2005 10:07:28 -0700, firstname.lastname@example.org wrote:
> >That must be the full-fledge NASCAR version, because no stock Charger
> >ever came close to any of those numbers -- except maybe the 4-spd
> >manual part. HP more like 380 SAE net, torque about 425 lb-ft, 0-60
> >about 6.0, top speed 150 (a verrrry unpleasant 150), weight 3,900.
> >180 Out
> Apparently, all you needed was the "race" Hemi which had been
> available as an option for several years. Cross-ram, 12.5:1
> compression. Since the normal Hemi was way underrated at 425hp,
> it's reasonable to assume the race was producing near 600.
> Don't forget; The specially-prepped but dealer-avaiable Dart in 1960
> could turn high 10s in the quarter with the race Hemi.
> Not many cars now under $300k that can do that.
I've never heard of the "race hemi" option for a '69 Charger Daytona.
Regarding the 426/425 hp "street hemi," according to something I posted
to alt.hi-po-big-block-ford-mercury a few years back, that engine had
about 411 flywheel horsepower. Here's my edited version of that post:
"The Hemi had a 10.25:1 CR, 2.25/1/94 cross-flow heads, dual quads,
famously low-restriction mufflers, and Mopar-style "factory header"
exhaust manifolds. The solid lifter cam had 276 deg advertised
duration, 60 deg overlap, and .467/.473 lift. This combination was
advertised at 425 hp @ 5000, 490 ft-lbs 4000. (See
"A '69 Hemi RR weighs 3880 lbs. (See Motor Trend's '69 Car of the Year
story, as quoted at http://www.hotrodder.com/nick/rrhistory.htm
in the day, Car Life magazine got a 4.10:1 Super Track Pack Hemi RR to
trap at 104. (See http://www.hotrodder.com/nick/rrhistory.htm
Assuming a 17% drivetrain loss, a 3880 lb car requires 341 rwhp, 411
fwhp, to trap at 104 mph (using the formulas rwhp = weight * (mph /
234)^3 and fwhp = rwhp/.83)."