[gumby79]

Originally Posted by aerohead

Couldn't find any specifics on Larry's Ghia,but I found this:
RSR Aero-horsepower Calculator-RB Racing
It's at the end of the 'document.'
Plug in drag coefficient
Frontal area
Weight
Speed
and hit the button,for
required horsepower
and aero horsepower loss is also provided
-------------------------------------------------------------------------
I did it for Spirit and it gave me 128-mph,at a discounted 147.17 horsepower.
It's out ahead of nothing
--------------------------------------------------------------------------
I threw some numbers in for Gumby's Dodge:
Cd 0.45
36.9 sq-ft
4,000-lbs
130-mph
= 298.82-horsepower (close to my Mini Cooper-based estimate)
-------------------------------------------------------------------------
With same specs and 150-mph
= 453.64-horsepower
------------------------------------------------------------------------
If 'Tonto' was slicked down to Spirit's 2012 drag coefficient he'd need only
281.4-horsepower for 150-mph.But they'd only let him do it for time,not a record.

recalculated your HP numbers to TQ
as follows:using https://spicerparts horsepower-torque-calculator
Spirit 147.17hp @5600=138TQ
-----
on the H1C/16 17psi max 1/2 way through 2nsd gear
the whale uncorrected:
@143.8 HP @1976 =382.2 TQ on the rollers @6000 ft warm humid afternoon in Cedar City, UT

45 HP @2500 = 97TQ = 92.5mph @about 1/3 mi
wind tunnel with the oversize blockage skew said only 109HP =229TQ needed @ 87.14MPH

corrected to basic day:
178.3HP @1976=473.9TQ ](edit: PeakHP)
172.8HP @1846 =491.0TQ( edit : peek TQ)
------
proposed 130MPH 298.82HP @ 2000 = 784.7TQ Is this at a gas RPM say 5000?
If so, then 130MPH 298.82HP @ 5000 = 313.8TQ . 160.1TQ under stock@ 473.9TQ
-----
proposed 150MPH
453.64HP @ 2000= 1191.3TQ
gas RPM 453.64HP @ 5000=476.5 less than stock 20.26TQ to spare.
---------
slicked down 150MPH
281.4HP @2000 = 591.2TQ
Gas RPM 281.4HP @ 5000= 295.6TQ a little over half stock available.

put the truck on a carbon diet and maybe 4000 lbs is possible, it tips the scale at 5500 lbs so the new HX35W12 that spools at about 1300 instead 2000+ as the governor cuts the fuel back will really help counter the current weight problem. I think you agree it responds more like a gas motor now. so a dyno comparison is coming. but will be skewed by the new trans.
---------
thank you again for the help finding the target range data .