Broke My Lifters Cam Ruined!
11-30-2009, 04:31 AM
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Broke My Lifters Cam Ruined!
Hey Guys i was wondering how this cam would do on my setup? a comp 222/224 .566/.568 on a 114lsa? instead of my 224/230 581/592? will this cam make more peak hp? or will i have to go with something with a higher lift? I also found a lunati 222/228 .567/.567 on a 113lsa?
11-30-2009, 08:38 AM
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i agree with crew, although i know nothing about cams (and i mean nothing other than bigger means more power), i also thought that the higher the duration the more power you make.
12-01-2009, 07:41 AM
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Your original post said peak power, not power under the curve. Two very different things. Now that you have clarified, I think that both of the cams mentioned would improve your usable power (versus your previous cam) in a heavy 5.3l Avalanche with a stock stall. That said, I'm sure that you could get a custom grind that would work even better. I would say keep the high lift (.580" plus) since you already have the springs for it. I also think you could tighten up your exhaust bias a little since you appear to have long tubes and a free flowing exhaust.
12-01-2009, 08:39 AM
#7
What happend to the lifter? Those cams sound like good power makers on the dyno, or for a light weight RC truck with a 3K+ converter but a little on the bigish side for a stock converter avalanche. If your looking for max power "under the curve" a short duration, with a somewhat high lift is the way to go. Another thing to look at is the lobe intensity (seat to seat duration vs .050'', and .200'' duration) Only problem is with the short duration high lift stuff thay are harder on the valvetrain than a long duration high lift.
I have an Isky 218/218, .605''/.605'', 112* LSA that would make a good HP/tq curve, but it would still need a converter to run optimum. Thats probably about the most of both worlds that your going to get.
I have an Isky 218/218, .605''/.605'', 112* LSA that would make a good HP/tq curve, but it would still need a converter to run optimum. Thats probably about the most of both worlds that your going to get.
Last edited by stock48; 12-01-2009 at 08:48 AM.
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12-01-2009, 03:06 PM
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i found this cam on thunder racing that i think im gonna order 227/227 .639/.639 116lsa which is kinda quiet for me but the duration and lift are a good combination dont you think?
12-01-2009, 04:00 PM
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What are you trying to achieve with picking cam's with such big lift?? Your not going to get peak hp and under the curve on something like that.. Bigger is not always better.. You need to find a cam that works well with a 5500lb truck.. What kinda converter are you running.. You can start determining a area of duration once you figure what kind stall speed you have or want to run...