AFR 325 flow sheets.... anyone ever flow these heads?
12-28-2016 | 09:02 PM
#71
Registered
Joined: Feb 2009
Posts: 8,356
Likes: 1,515
From: NW Michigan
You are spot in with the exhaust. I was running Gil's with long dry tails and with Tinkerers 650 hp engines, all I managed out of my Formula was maybe 81 MPH. 81 isn't bad out of my boat but 81 with 1300 hp isn't that great either. I know for for a fact the limiting issue was the exhaust. Tinkerer was gettting around 83 out of the same engines with a heavy Scarab III. Only difference was he was running lightning exhaust, better than Gils, but still a far cry from a true header. I've got two sets of Eickerts waiting to go on this spring. I'm not going to make any other changes and I'm willing to bet I pick up 5 mph with that change alone.
12-28-2016 | 10:56 PM
#78
Registered
Joined: Jun 2009
Posts: 9,989
Likes: 6,484
From: Chicago
I would have put that money spent on some porting into the "exhaust fund"
My effort was spent on improving the chambers for better more complete combustion and flame front, valve job work, and guide clearances etc.I wasn`t concerned about flowing an extra 10cfm because it wasn`t going to make a difference in a tank.
I know you think this guy is the best but I think it was a waste of time and money and not giving before and after results is shady.
Sorry, not sorry
My effort was spent on improving the chambers for better more complete combustion and flame front, valve job work, and guide clearances etc.I wasn`t concerned about flowing an extra 10cfm because it wasn`t going to make a difference in a tank.
I know you think this guy is the best but I think it was a waste of time and money and not giving before and after results is shady.
Sorry, not sorry
12-29-2016 | 04:51 AM
#79
Thread Starter
Gold Member
Joined: Oct 2005
Posts: 11,692
Likes: 217
From: Olmsted Falls,Ohio Marblehead,Oh
Dan, the port work was done because I know someone that can do it for me way cheaper because its a friend, it was not a waste of money at all, as I stated the exhaust will be done when I can. the heads are off now, needed a valve job now, so why would I not port them if the offer was presented and get flow numbers? I absolutely did not waste any money. again you guys are hating on me doing things better, kinda cracks me up. not even sure why I post anymore on the engines, I like others enjoy talking and learning, but I sure am pegged s a fuk up when I post what I am doing, build myself, and learn... again love the support lately... back to hating on FF for trying to do things the right way, maybe my guy was fine not flowing them before, I mean after 40 years, maybe he knows what he is doing? but you guys know because you don't know him... just the fact I know him makes him idiot and he sucks.
12-29-2016 | 04:52 AM
#80
Thread Starter
Gold Member
Joined: Oct 2005
Posts: 11,692
Likes: 217
From: Olmsted Falls,Ohio Marblehead,Oh
with people still telling me I am a f up and hack I don't see posting much more about them, I am not gonna offer post and discussion to get told my guy sucks when nobody knows what the results are..no matter what I do, OSO does not approve so why bother.
