at .300 lift there was 100% intake-to-exhaust flow. my instrustor said his 8 second Fury with a 440 only has 80% intake to exhaust flow. now, after doing this flowbench, i went and did a MILD port job to the intake, all i did was take the lips off the inside of where the valve seat is and the burrs on the outside of the runners. i have a lot more to take out but heres the results from just taking the edges out.
it gained 20 more cfm at .400 lift with just smoothing out the edges. im going to finish things up on monday and post the results of the completely ported head. intake and exhaust.
ya i was impressed with the stock flow…a hogged out lt1 head just barely out flowed what my 4g63 did stock, but max lift i could get outta mine is like .400 , he was flowin up to .600 lift and was pullin some sick numbers. but at my max lift and the lt1 at the same, the lt1 had like 8 cfm on me, but i guess they dont really shine until .500 and up but still, not bad for stock 2.0L.
stock 1G heads are amazingly efficiant. This has been known for a long time. Sounds like you did a good job messing with it though, I wouldnt do much more though.
thanks…the final results were 255 cfm at .400 lift on the intake, and 220 cfm at .400 lift on the exhaust. its looks sick as hell, ill post a few pics up when i finish polishing the exhaust ports and hit the intake up with some 50 grit. thanks for the props redneck. and BTW darkstar, you are still number one on my shitlist.
and im still shaking in my shoes. Funny how you come crawling back to Pittspeed ONCE AGAIN, even after all the shit you talked on it and getting permabanned.
there is no “chart” when your done that prints out like a dyno. u have to draw up a chart and record the info. i hav ethe head home now and is totally done. i will post up pics of it asap when i get access to a digi camera.