| Re: Started the car with the AFR heads last night |
Subject: Re: Started the car with the AFR heads last night by BeachBum on 2009/8/1 2:43:35 Joe, Actually, you did make a mistake that quite a few accidently make. Your flow numbers for the AFR Cylinder heads are the old style heads that were manufactured several years ago before the Eliminators. Both the 190's and 195's flowed those numbers with their street port version for many years.... which was fairly stout for its day, but thats old news. The 195 "eliminators" street version flow cylinder heads flow: .200.....137.....110 .300.....196.....158 .400.....243.....190 .500.....274.....207 .550.....280.....211 Now re-run your numbers above, and you might see some value. As a note, these cylinder heads are $ 1510 equipped as per AFR's website. As a note, the Eliminator Competition cylinder heads are another $ 569 and flow approxmiately 15-20 cfm above those. On another note, a lot of people have purchased these and many have had them independently flow tested, as I did with my 227's..... everybodys has been flowing as advertised regardless of who's flow bench they are on..... I think there are enough to say that its safe to say the make the # btw, for an apples to apples comparison, you should compare them to the AFR 227 street version which I think flow right around 305-310 cfm... with the competition version up and around 320 cfm..... On comparing them in price to some 220 cc RHS Iron heads.... I dunno, not sure why you would want to do that.... there are a lot of companies that manufacture a low dollar Iron head... it cost less to manufacture. Don't get me wrong, I've got nothing against RHS cylinder heads..... I know many have made good power with them, but thats typically after spending a bushel with their favorite head porter. But.... On iron vs aluminum, that can be debated, and I've seen tests on them.... its hard to do an apple to apples test on any thermal heat loss on the aluminum because the test heads always flow different thus skewering the test..... but, the test I have seen any power difference is maybe 5 HP.... and that is of course negated by the weight difference. But, who knows.... |
