Yes, I have a set on order. I'm also most likely going to a 1:65:1 rocker ratio to get my intake valve lift up next to .600" to tap into all the cfm I can get. They also come with the light weight valve componets and one of the main reasons I'm using them as I plan on shifting in the high 6000rpm range.
Geez, don't you have 195cfm AFR's now? Now you're just getting HP greedy eh?
Can you link me to 1.65:1 ratio arms? I thought above 1.6 was unheard of outside of BBC's or shaft rockers?
"Geez, don't you have 195cfm AFR's now? Now you're just getting HP greedy eh? "
Actually I'm currently running a set of the older Dart Pro One 200cc heads that have been worked over some by JerryWho. Nice job I might add.
However since those heads were made both AFR and Dart have come out with newer versions with improved combustion chambers and revised runners. I know AFR is utilizing light weight valve componets for higher rpm.
So as I have stated in other posts I expect to be shifting my TPI in the 6700 to 6800rpm range. So instead of putting money into the older Dart heads I might just as well step up to the newer and better heads that already come with the componets that I will need. HP greedy? Yes, I'm guilty as charged.
Hahaha. I can see why you might think that. Actually it has been on there for awhile now and will be until maybe late this year when my new short block will be ready. Anyone ready for a 7000rpm TPI motor?
i wonder if my .603/.613 is too much for the regular 195 eliminators. lol 210's are next for me and solid roller if i dont like how the new motor combo works for me
i cant wait to see how your TPI setup does with the 195 Comp ports
As you know the regular AFR 195 Eliminators are rated to .600" lift. If you upgraded the springs to the competition style would the lift also increase to .650" like on the competition heads?
I would bet that AFR uses the .060" coil bind rule. If so you should be fine. Depending on your valve train geometry and push rod flex you might not be getting the lift you think. Alot of the engine builders like a .050" coil bind rule. Some go even more than that but are very carefull on the build.
According to the engine building guru's the point to change over to a solid roller cam is the 6500rpm point. Below that and a hydraulic roller is fine. Above that and the solid roller starts to shine.
I would bet that AFR uses the .060" coil bind rule. If so you should be fine. Depending on your valve train geometry and push rod flex you might not be getting the lift you think. Alot of the engine builders like a .050" coil bind rule. Some go even more than that but are very carefull on the build.
i talked to bret bauer who does all kinds of cams and has alot of experience with AFR's upgraded 8019 springs which i got. They are indeed good to .650 lift over the stock 8017's the regular AFR 195's have which are good to .600. The coil bind height as advertised by AFR is conservative according to bret. you can go more lift and get away with it.
My cam should push 6500 rpms on motor... hopefuly shift by 6500-6600 that is but we'll see. In order to get more, its solid roller time
From your above post you are in great shape. With that amount of lift you are going to get every cfm those heads allow.
When people buy the new AFR heads I would not short change myself on the lift. They are leaving free horsepower on the table. I think Bret is right on the money regarding your lift and those heads.
To everyone remember "lift is your friend".
Last edited by 1989GTATransAm : 06-24-2008 at 11:27 PM.
