machzilla

You wanna hear a TFS1, here's mine at idle.

http://videos.streetfire.net/search/...64016d6d42.htm

aode08

Stick with 1.6, you will have your powerband higher N/A with 1.7.

PTV issues , rare.


Milling the heads for more compression helps performance, but id not install a bigger camshft then stock, unless you check ptv, or let the machine shop do it.

stangateurlilz06

you can have two idealical duration cams.. and same lift, but the ramp rate, the opening and closing events. can be way different.. so cam the lobe seperation, intake centerline.. all things you need to consider when choosing a cam..

so just cause the duration is similar for the stage 1 and the e-cam.. doesn't mean that they will behave the same.. or for that matter idle the same or pass emissions..

ih8chevy

u got the e cam in there they are good cams and just do what everyone else said and put 1.7's on it and run it and be fine, now if it wasnt in there i would go trick flow stage 1, its an awesome cam. but the 1.7 e should do u fine

nmerrill

(link in sig)
Cant really hear the lope over the drone, but it does actually sound real lopey at idle

Chitown racer

Ok, well here's my contribution to the confusion, which comes from over 20 years of being involved in the performance biz. Of the 2 cams the TFS stage one is a better camshaft design.It's basically Trick Flows version of what a modernEcam would be. Without writing a whole article on cam theory and design explaining why, I will simply say that you will make slightly more HP and TQ, have abit broader, flatterpower curve, and because it has 9 degrees less overlap your idle quality should improve abit. Not too mention that the TFS cam has 3 degrees less Advertised intake duration, but 1 degree more intake duration at .050" lift. Toss in the TFS cams split lift and duration with the larger exhaust lobe spec's helping the SBF's naturallyweak exhaust flow you get a more powerfuland slightlymore EFI friendly cam.

As for the emission testing, Ive seen some pretty radically cammed Stangs pass emissions, butthey had been tuned to runon lean sidejust to pass and it wouldn't havebeen asafe tune for anyhard driving or racing.

detroit50

I f you dont already have roller rockers I would get them before anything. U will not see the full potential until u do so.