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Vac issues

PostPosted: Wed Aug 19, 2009 3:08 pm
by 4doorciv
Well if you remember from my last topic I for the truck to idle. Well had some tinker time with it and installed a boost/vac gauge. The truck idles with the biss screw almost all the way out and has only 6 inhg. I'm going to go to my old college and have them put their smoke machine to it since no external leaks visable.

Re: Vac issues

PostPosted: Wed Aug 19, 2009 3:11 pm
by 4doorciv
Oh and for the modified intake manifold, why does the egr runner go into the head? Pros and cons of caping in a state without emissions. My issues might be related to the modification.

Re: Vac issues

PostPosted: Sun Aug 23, 2009 4:12 pm
by 4doorciv
Egr runner goes back into the head to collect the exhaust gases. Used a gasket on the block off plate and didn't help. Got a compression tester and a small air compressor. Would it work if I pressurise a cyl on the intKe stroke to fill the intake manifold and listen for hissing. Thinking only 15 psi max.