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Old 03-09-2012, 03:04 PM   #7
Jittsl
SPB racer
 
Join Date: Feb 2011
Location: San Antonio TX
Posts: 252
Garage
Quote:
Originally Posted by Brad Roberts View Post
Now, that being said.. drag racers for years have used a belt driven vacuum pump to pull upwards of 20inches of vac on the engine at high rpm (non dry sump engines)

GT3 = dry sump
9X6 = wet sump
9X7 = wet sump

Want to run a breather can? Go to a belt driven vac pump and adjust the suction side of the pump so it does not pull too much vac on the engine causing seals to collapse.


B
Hmmm. That may be a little more complicated than I had in mind.

Thanks for the explanation regarding vacuum. Was not aware of this. Isn't that the reverse of the old fashion PCV (positive crankcase ventilation) that so many of my early cars featured?
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