hmm i have heard rumors that different benches show different results. I don't know how they work but the porter who i spoke to does some of the work for a few of the top supra guys and he can't get more than 280-290 out of one. He has been doing this work for 25 years and the shop is highly reputable and has been around for a very long time. What else was weird was that i have seen people post stock flow numbers that were better than a mildy ported head. That just doesn't make sense to me.SteelCitySupra said:it can be done... some people/companies i know say it isnt possible. But i have seen a shop put out close to 310cfms at 400 lift.
is that at 28"? if it is i'd have to call bs on that one. i've never even seen a gte head flow anywhere near that even at .500" lift.SteelCitySupra said:it can be done... some people/companies i know say it isnt possible. But i have seen a shop put out close to 310cfms at 400 lift.
bdekoning said:shut the fuck up unless you can post something relevent
Ive seen the sheets saying 307cfm @ 400lift. i dont know the specs, im just tellin ya what i saw.1300rwhp said:is that at 28"? if it is i'd have to call bs on that one. i've never even seen a gte head flow anywhere near that even at .500" lift.
yeah, drag cams. the cam won't be your biggest problem, you can get that custom ground anyway. the size of your buckets is your limiting factor when trying to get lift near .500".silvino said:Is there even a useful set of cams available that would take advantage of a head that flowed well at .400 or .500 lift?
KenHenderson said:I believe Peter Blach posted his SHP (now AutoBanh) ported head flowed 295 cfm at .400 lift with HKS 272 cams and 1 mm oversize valves. This is one of the better numbers that I recall. Embarrassingly, I can't remember my own numbers from the work Port Flow did on my head many years ago, but Peter's 295 cfm seems damn good to me.
Sil, the work on your head was real good also as I recall. Do you have any numbers you care to post although, like me, it appeared, from the pics and descriptions I recall, to be more velocity-based rather than maximized outright flow?
I don't have the info handy but let me research for a few and i will pm that over to ya.pheobo said:Headgames? just curious... what's the contact?