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Ive found a new way to port your engine
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Posted: 11/26/09 11:50 PM
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I don't know if this is the right place to post this?
I have found some amazing things with air flow and fuel consumption when porting a head and manifold with a wire wheel. My port looks like this and so does the manifold.

I have a 1986 Nissan Bluebird wagon 2000 cc (no EFI on this one). I have improve fuel efficiency under highway driving conditions and have poor fuel efficiency under full load but seem to have more power I don't have any figures sorry.
I was wondering if anybody has a flow bench handy and some spare time to bore out PVC pipe with a wire wheels as a test, having 2 the of same length and one to compare flow to? I had a primitive test setup that used 2 vacuum cleaners with a tee connected to a tube in a bucket of water, I found that the head of water did not go up very much when I was connected the tee to the inlet port with the manifold attached and I also found when I moved the tee about 10mm down from the port the reading when negative eg in free air I had about 110 mm of head then it went down to about 50 mm, it was a 32 mm tee with a short piece of 25 mm pipe inside. In my test I found that the intake track 620 mm with out the valve had the same resistance (head) as a piece of 25mm PVC pipe 45 mm long.
Ignition control, well I can't find any around to do what I want I have a normal Toshiba laptop with my own program controlling the timing on my engine, its a bit limited because I only have 3 inputs to control my timing over the load range, so I put a request into the MSD engineers the other day. http://www.msdignition.com/forum/showthread.php?t=14464]
My engine timing is also very different the timing is linear with rpm and is quite lower as well (closer to TDC). see pic

I have a web site Web site if anybody is interested.
I have a video of fuel flowing from Vacuum secondary port on you tube to prove the increase in air flow. Air Flow with no load revving
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