Q45Tech questions about Windage

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PoorManQ45
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Windage is the resistance caused by engine parts moving through the oil, right?

I have been talking to a few gear heads. And they were talking about knifing the crank. That would allow the crankshaft to flow through the oil easier, correct?

Would this do anything for a daily driver? Or is it only usful to racers?

Q45Tech, could you better explain Windage for me?


Q45tech
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Car: 1990 Q45 342,400 miles 22 years ownership with original engine
1995 G20t 5 speed 334,000 miles 16" 2002 wheels - 205/50/16 Sr20ve vvl

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Daily driver assumes low average rpms plus the Q has a deep pan and the crank isn't in the oil. Nor are the crank weights. At 7,000 rpm there isn't much oil in the pan in any event.

Racers may not care about durability [shaving the crank].

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PoorManQ45
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Q45tech wrote:Daily driver assumes low average rpms plus the Q has a deep pan and the crank isn't in the oil. Nor are the crank weights. At 7,000 rpm there isn't much oil in the pan in any event.
Why isn't the crank in the oil? I would think that it would best. for lubrication purposes, to have the crank going through the oil.
Q45tech wrote:Racers may not care about durability [shaving the crank].
Shving the crank does not reduce duribility much. One of my friends had this done to his 1994 mustabg 5.0. It has survived 6 years so far. I think that seems reliable.

maxnix
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1995 Infiniti Q45t
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PoorManQ45 wrote:Why isn't the crank in the oil? I would think that it would best. for lubrication purposes, to have the crank going through the oil.

Look, I made another dumb comment!
Drag and frothing of the oil. Seems rather obvious, no?

Q45tech
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Car: 1990 Q45 342,400 miles 22 years ownership with original engine
1995 G20t 5 speed 334,000 miles 16" 2002 wheels - 205/50/16 Sr20ve vvl

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There are Ford designs and there are Nissan designs.If you study the look/parts of brand new 32V Ford engines you will see many lower block similarities with the 90 Q engine.

The Q engine has a windage tray on bottom of bearing girdle to lessen oil/air fog from getting up to crankshaft.

A drag motor might be knife edged because it only has 10-14 seconds at high rpms whereas an endurance motor would trade the 1-2 HP saved for longevity.

The only viable way to rebalance the crank after knife edging is to use heavy metal [tunsten] inserts or depleted uranium plugs.http://www.circletrack.com/techarticles/84199/

http://victorylibrary.com/mopar/crank-bal-c.htm

maxnix
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Car: 1995 Infiniti Q45
1995 Infiniti Q45t
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Q45tech wrote:The only viable way to rebalance the crank after knife edging is to use heavy metal [tunsten] inserts or depleted uranium plugs.http://www.circletrack.com/techarticles/84199/

http://victorylibrary.com/mopar/crank-bal-c.htm
Hmmm......might explain why firing ACP .45 rounds into the crank ain't doing it.

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PoorManQ45
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maxnix wrote:Hmmm......might explain why firing ACP .45 rounds into the crank ain't doing it.


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