I'm going to get a tfs cam for the block I'm building. It's a stock rebuilt roller cam shortblock with keith black pistons, and will get gt40 irons from a 95 cobra. motor will be going into a smog exempt 72 maverick, so smog is no issue. I'm not too worried about the lope, so long as the car doesn't stall from it. the maverick has no power brakes or anything that needs vacuum at idle anyhow. Since I have no smog to worry about, would the stage 2 tfs cam work better with the gt40 irons, or would it be overkill?? Budget right now allows for just a stock intake, however, I'll be getting a good intake in the VERY near future. (it'll be an efi setup) I'm NOT trying to build a drag or racecar fyi, but want the best cam for the car. Right now It only has an 8" rear with no trac lok, and stock gearing, and will be sent through a c4 trans
I am sorry, I was distracted by all the links in your post that linked to some corral.net site. As I read through your post, I clicked and then looked at all the resulting links (all the same, as far as I can tell). What are you trying to get at with the links. It even looks like the same text... Even in the Corral.net text, the links go back to the same thread in corral.net...etc, and so on. My input, as far as I know....GT40 heads are good, but I don't know crap about roller blocks. Or Kieth's black pistons (or his yellow ones, for that matter). And, don't worry about smog. there is PLENTY in the LA/Corona area...whatever you do to your car won't make much of an impact on the smog out there. By the way, that was all in jest But what does "tfs" stand for?
I think it is trick flow systems. disregard those links, that wasn't supposed to happen. Here is the scoop on the cams, http://www.trickflow.com/product/camsandvalvetrain/track_cams/track_cams_ford.asp it's the first two on the list I'm considering. I don't have an aftermarket torque converter for my c4, nor can I afford one, so, unless someone really makes a strong suggestion toward the stage 2, maybe I just made up my own mind.
I'm open to suggestions, it's just that from everything i've read, the tfs is like an e cam, but a much newer and better design. how about this, i'm being told since I have stock maverick gearing and a stock c4 with no torque converter, that I'd be better off with a stock HO cam, what are your opinions on that?
Go with the stock ho cam 1.7 roller rockers. Thats a good combo for a driver. btw it's trick flow specialties.
Either the stock HO cam with 1.7 rockers or the FRPP "E" cam with stock ratio rockers. Don't do the TFS cam if you have a stock converter and gears.
I'm with ShadowMaster, I would do the "E" cam myself if I already have the 1.6 rockers. If you ever want to change the cam, you are stuck with the 1.7 rockers & I'm sure you will have to get a converter & gears. Plus I think the heads top out at about .550 lift.
When I say top out I mean that the airflow (in cfm's) of the heads don't get any better at a fast rate. I'm sure the heads will flow at .600 lift but it will be less than what it flows at .500 lift. Click the link. The heads flow good up to .500 lift then the numbers start to slow down alot. There is not much difference in flow at .500 -.600 lift. http://www.jason.fletcher.net/tech/flowdata/castiron.htm
If you look at the GT40P heads chart. You are right. After .500 the head numbers start to drop on the intake side, the exhaust side still moves up a little.
So, at which height do you start to worry about "binding" of the valve-stem, on stock heads. THAT is what I was referring to when I said "maxed out". Wish I could get that data from the chart in smaller increments, at least .500-.600 in increments of .010 or .025... Anyone have any idea what "Stage 1" means, and how much improvement I might have made by knocking out the smog bump and polishing the exhaust? ballpark?
