Ok Guys, My big summit order arrived and a made a mistake. Instead of a E303cam, I ordered the B303 cam. I have done some research and I need to decide if this cam will work for me. I am running a 331, 9.7:1 KB forged, GT40Y with a mild port and cleanup, FMS springs good for .650 lift, BBK shorties, C&L 77MM cold air, Cobra intake, 24#. The car is a fat '94 Vert with 5 speed. The use is occasional street driver with emphasis on torque. If I want to go really fast, then I take out my TT '65.
Current thinking is that the B303 is out of date. That is generally because the E303 will do just as well without the idle probelsm. To back this up, check out the book 5.0L Ford Dyno Tests by Richard Holdener. To sum up his results , on a moderately modded 302, the B303 average HP was 246.1, and 315.2 Ft-lbs. The E303(Comp 2040), did 249.1/319.1. So, the E303 is just as much cam but without the B303 idle challanges. Thats all good except my heads dodn't flow like the heads on that test motor. You probably know that the Gt40Y heads crap out at .500 lift. The B303 cam is .480 lift but using my 1.72:1 rockers, that works to .516. The E303 ca would work out to .535 which probably wouldn't do any thing for my heads.
I treid to get a FTI cam but Ed Curtis has dropped off the face of the earth. No reponce after thre e-mails over a two week period.
Anyway, curent thinking is that the SBF heads are helped with dual pattern cams, like the TFS stage 1,(51402000), with more lift on the exhaust. comparred to the E303, The TFS cam has a 1 degree more duration on the intake, 5 degrees more on the exhaust and more lift on the exhaust but is not decribed as a computer friendly cam.
I probably will keep this car a long time and we dodn't need annual smog checks here.
So, you B303 dudes, hows your idle? PAss a sniffer test?
You TFS stg 1 dudes, same questions.
You E303 dudes, glad you went with this cam?
Eric
Current thinking is that the B303 is out of date. That is generally because the E303 will do just as well without the idle probelsm. To back this up, check out the book 5.0L Ford Dyno Tests by Richard Holdener. To sum up his results , on a moderately modded 302, the B303 average HP was 246.1, and 315.2 Ft-lbs. The E303(Comp 2040), did 249.1/319.1. So, the E303 is just as much cam but without the B303 idle challanges. Thats all good except my heads dodn't flow like the heads on that test motor. You probably know that the Gt40Y heads crap out at .500 lift. The B303 cam is .480 lift but using my 1.72:1 rockers, that works to .516. The E303 ca would work out to .535 which probably wouldn't do any thing for my heads.
I treid to get a FTI cam but Ed Curtis has dropped off the face of the earth. No reponce after thre e-mails over a two week period.
Anyway, curent thinking is that the SBF heads are helped with dual pattern cams, like the TFS stage 1,(51402000), with more lift on the exhaust. comparred to the E303, The TFS cam has a 1 degree more duration on the intake, 5 degrees more on the exhaust and more lift on the exhaust but is not decribed as a computer friendly cam.
I probably will keep this car a long time and we dodn't need annual smog checks here.
So, you B303 dudes, hows your idle? PAss a sniffer test?
You TFS stg 1 dudes, same questions.
You E303 dudes, glad you went with this cam?
Eric