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I'm just getting into the FI conversion on my GT and I've got the setup except for the fuel pump and the throttle setup.
Anyone want to steer me in the right direction ?
Anyone want to steer me in the right direction ?
I think it sounds like you're refering to the F270/F265 cam profile from Cam Techniques, not Cam Effects. It has .270" intake lobe lift, and .265" exhaust lobe lift (x 1.5 rocker ratio= .405" intake and .398" exhaust lift). This cam has 220 degrees intake duration @ .050" and 214 degrees exhaust duration @ .050". I normally use it with 109 degrees of lobe separation for carb'd engines. I'd go with 111 or 112 for fuel injection. A 2.4 could even use 114 degree lobe separation. That cam is a solid profile ('F' for flat-tappet), but the ramps are gentle enough it can be used for hydraulics (have done it for years with no issues).Paul said:Bob,
I love it when you talk CAMs to us. LOL.....
We might even need a new thread for this. A while back you gave advice, to someone needing modest performance increases, for cam lobe profiles from Cameffects I think. I haven't located it just yet, but I think you gave a profile number and a lift for each of the Exhaust and Intake. ?# profile, .408 lift Intake(Right?) & ?#profile, .394 lift Exhaust (right?). You suggested the split profile to help Improve the balance in intake vs exhaust flow, I presume. How did that profile meet your above suggestion for a shorter duration? Lots of the information I've read lately discusses the importance of proper Intake valve closing angle. Do you happen to remember the angles of that profile? If someone has upped to the 42mm (2.0) Intake valve to improve flow balance, how would this affect their choice of cam lobes and lifts? Lets assume stock springs, so that limits cam lifts automatically. Lets keep the discussion to Hydraulic lifter cams and for the sake of following the above thread, and lets first consider FI first before the conversation moves on to carbs.
Again... Our many thanks
Paul Crane