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#1
04-10-2020, 06:18 AM
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You can't do a direct A to B comparison between a BBC oil pump and ours because the BBC pump has more teeth on its gears!
The BBC pump provides much smoother and consistent oil flow and smaller shock loads to the oil pump drive shaft and Cam and Dizzy gear for any level of oil pressure output as compared to the Pontiac pump.
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#2
04-10-2020, 09:42 AM
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Information regarding the BBC oil pump was for interest, not intended to be a direct comparison.
Again, "We've never seen a noticeable performance loss from the added load," says Butler. "Racers will sometimes run a 60-psi pump to reduce parasitic drag and free up a few horsepower. While that's acceptable in a dedicated race engine that's frequently torn down, it's certainly not something we recommend for all engines." So how much is that 'few', want to guess. .
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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 ) Old information here: http://www.hotrod.com/articles/0712p...tiac-trans-am/ Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine) Best time 5.13 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension https://www.youtube.com/watch?v=qDoJnIP3HgE Last edited by Steve C.; 04-10-2020 at 09:54 AM. |
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#3
04-10-2020, 10:44 AM
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Maximum oil flow on a Pontiac stock-type 60- or 80-psi pump with a stock pickup screen is usually 12-13 gallons per minute (gpm).
Source: Jim Butler Calculate HP to Drive Oil Pump http://www.wallaceracing.com/oil-pump-hp-calc.php Too simple ? Influenced by engine RPM, weight of oil, temperature, etc ? ? .
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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 ) Old information here: http://www.hotrod.com/articles/0712p...tiac-trans-am/ Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine) Best time 5.13 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension https://www.youtube.com/watch?v=qDoJnIP3HgE Last edited by Steve C.; 04-10-2020 at 10:57 AM. |
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#4
04-10-2020, 12:13 PM
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Quote:
I believe that the experiment did not work out at the time. Melling sent me several pumps to look at the different Gear drive options available. Tom V.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
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#5
04-10-2020, 08:55 PM
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Tom...good question regarding the torque setting. The Nitemare site doesn't give those details. Here's the link though if you'd like to take a look for yourself:
http://www.nitemareperformance.com/o...asket_pro.html At this point it's just an academic question. You've sold me on the paper. But it is an interesting question nevertheless. As far a reusing gaskets, I have always erred on the side of caution and bought new especially when the gasket in question costs less than $2. |
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