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InternetRoadkill · 07-22-2008, 09:09 AM

Has anyone actually put a vacuum gauge on the on the intake plenum and measured the manifold vacuum at WOT during acceleration to see if the intake system really is as restrictive as folklore believes? I'm really curious about this. I would do it, but my vacuum gauge is kaput.

The reason I'm asking is that it looks like it would be possible to fit a modern high-flow MAF to our 22REs and remove the VAFM without having to change the EFI system out. But if the VAFM isn't the problem that everyone thinks it is, there's no point pursuing it.

07-22-2008, 09:09 AM	#1 (permalink)
InternetRoadkill Registered User Join Date: Jan 2006 Location: San Antonio, Texas Posts: 837	VAFM restriction. real or imagined? Has anyone actually put a vacuum gauge on the on the intake plenum and measured the manifold vacuum at WOT during acceleration to see if the intake system really is as restrictive as folklore believes? I'm really curious about this. I would do it, but my vacuum gauge is kaput. The reason I'm asking is that it looks like it would be possible to fit a modern high-flow MAF to our 22REs and remove the VAFM without having to change the EFI system out. But if the VAFM isn't the problem that everyone thinks it is, there's no point pursuing it.