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trevo · 09-20-2013, 12:31 AM

Men, this has been asked recently without an accurate conclusion can anyone tell me what vacuum is pulled at what RPM on a stock standard 34 221 cu inch motor [that is for example at 1000 rpm equals 19inches] what is the vacuum pulled from the port on the inlet manifold to the vacuum wipers ?? Thanking You.

09-20-2013, 12:31 AM	#1
trevo Senior Member Join Date: Dec 2011 Location: Napier NZ Posts: 299	Vacuum 221 cu in stock Men, this has been asked recently without an accurate conclusion can anyone tell me what vacuum is pulled at what RPM on a stock standard 34 221 cu inch motor [that is for example at 1000 rpm equals 19inches] what is the vacuum pulled from the port on the inlet manifold to the vacuum wipers ?? Thanking You.