Tampilkan postingan dengan label drag racing. Tampilkan semua postingan
Tampilkan postingan dengan label drag racing. Tampilkan semua postingan
Why does a car with a SBC have a faster 60 foot, than the same car with a BBC? Inertia
As Wayne Gapp (from the Gapp and Roush team that won a lot of early 70's NHRA races) explains, and he was the engineer in charge of Fords 429 racing program for NASCAR and drag racing ....
NHRA was still running with the seven pounds per cubic inch rule .... under those rules, Chrysler won every race, because their Hemi was a much better motor than the Chevy or Ford.
It wasn’t long before Bill Jenkins was petitioning the NHRA to have the rules altered to allow the use of a small block engine in a Vega at the same seven pounds per cubic inch configuration.
The NHRA bought into the idea, thinking that it was “six of one, a half-dozen of the other”, I guess.
Problem was, if they had consulted their physics books they would have realized that it wasn’t all that straightforward. There was a thing called inertia, which no one took into consideration.
Simply stated, if you take a 2,700-pound big-block car and a 2,300-pound small-block car and you let out the clutch on each one, it’s the inertia off the line that determines the performance during the first 60-feet of the pass, not the horsepower.
In other words, if you kick a cement block and a block of wood, quess which one will travel the farthest? So, naturally, Jenkins’ little Vega just jumped off the starting line and consequently it killed the Chryslers during the 1972 season.”
http://www.competitionplus.com/featured-stories/2773-gapp-a-roush--hailing-the-cab
NHRA was still running with the seven pounds per cubic inch rule .... under those rules, Chrysler won every race, because their Hemi was a much better motor than the Chevy or Ford.
It wasn’t long before Bill Jenkins was petitioning the NHRA to have the rules altered to allow the use of a small block engine in a Vega at the same seven pounds per cubic inch configuration.
The NHRA bought into the idea, thinking that it was “six of one, a half-dozen of the other”, I guess.
Problem was, if they had consulted their physics books they would have realized that it wasn’t all that straightforward. There was a thing called inertia, which no one took into consideration.
Simply stated, if you take a 2,700-pound big-block car and a 2,300-pound small-block car and you let out the clutch on each one, it’s the inertia off the line that determines the performance during the first 60-feet of the pass, not the horsepower.
In other words, if you kick a cement block and a block of wood, quess which one will travel the farthest? So, naturally, Jenkins’ little Vega just jumped off the starting line and consequently it killed the Chryslers during the 1972 season.”
http://www.competitionplus.com/featured-stories/2773-gapp-a-roush--hailing-the-cab
what 4 door won the 1975 Spring and Summer Nats, and was the runner up at the Winter and Gator Nats? The Gapp and Roush Tiajuana Taxi 1972 Ford Maverick
images from http://www.gapponline.net/tag/tijuana-taxi/ and http://www.competitionplus.com/featured-stories/2773-gapp-a-roush--hailing-the-cab
Gapp, he was the engineer at Ford in charge of the 429 racing engine program for both NASCAR and drag racing in the late 1960's
Roush is Jack's last name, and Jack Roush has made a lot of very fast mustangs. Nuff said
Full long article at http://www.competitionplus.com/featured-stories/2773-gapp-a-roush--hailing-the-cab
Mopar lineups... impressive classic musclecars from left to right.
the upper left yellow and black Super Bee or R/T, looks a lot like mine, it's a damn shame this photo isn't in better resolution or size so these cars could be better identified, as in R/T or Super Bee, GTX or Road Runner... I'm not sure what the other black car is, the one in front of the blue shirt .. a Fairlane?
more cool stuff found on Outsidethecubicle.tumblr.com
Not often you see a photo of a B29... maybe this one was too big for the runway and ditched? B-24 in the air I think
all just a sample of the cool stuff found on http://outsidethecubicle.tumblr.com
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