Crank vs. rear wheel

Moparmal said

I guess this gest tp the point - A-Bomb seems to think that losses through accesories to achieve an SAE rating is only around 5%

2Darts and DGC seem to think its closer to 16% ?

(Correct me if I'm reading anyone wrong - I'd hate to attract another "stalker" ! LOL!)

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A-bomb is missing the point, they put headers, no exhaust, didn't use the carb that shipped with the car and didn't have any engine driven accessories attached. when they did the gross measurements prior to 72 which can easily account for 16%. As far as 5% for an alternator, water pump, fan and power steering that is awful low. I have seen tests where factory fans absorbed 5% all by themselves.

Considering STOCK 340 A-bodies back in the late 60's would run mid 14 sec in the mid 90's for mph 180 rear wheel HP is right in the ball park to produce those times.