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10-30-2007, 02:28 PM | #1 |
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Location: KINGSPORT,TN.
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what do you guys think of this cam ?
heres my engine combo so far,
400 ,2 freeze plug block ,.040 over bore, studded out 400 stock crank, balanced rotating assy., new balencer 10-1 hyper pistons GM pink 5.7 rods w/ arp bolts,h/v oil pump & hi-cap. pan (7qt ) dart pro-1 aluminum heads (2.05x1.60 ) z-28 double springs, pocket ported & port matched, 200 cc,s intake ports offy intake with 3 rochester 2 bbl carbs mallory dual piont with 45,000 volt coil ( cauz thats what i prefer for simplisity& all that will fit with 3 duces ) vette 2 1/2" exh. manifolds, port matched to heads hi-volume alum water pump. now this cam i,am thinkin of useing what do you think ? engle# ep28/30-1-1 specs. valve lift in.520,ex.537 running duration in.294,ex.310 valve lash-hyd. overlap, intake open @20 deg. exh. closes @22 checked at lifter .050 , intake closes @48 , exh. opens @58 gross cam lift & duration @ .050 intake 347, 248dur. ---- exh. 358, 260 dur lobe centers 106 i know someone has to be better at selecting a cam than me so help as i know this is what makes it tick. i want a small lopy idle my gearing is built th 400 with 3.73 gears thanks bob
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I BELIEVE IN JOHN 3:16 Last edited by BCOWANWHEELS; 10-30-2007 at 02:32 PM. |
10-30-2007, 02:57 PM | #2 |
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Re: what do you guys think of this cam ?
sounds like a cam better suited for a lighter car with alot of highrpm usage// call the cam tech line with all your specs weight tire size intended use for a recomendation
theres many small cap hei dizzys that will work with 3 4and 6deuce manifolds
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10-30-2007, 03:46 PM | #3 |
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Re: what do you guys think of this cam ?
You will want some good tires to go along with the fairly high stall you will want with that cam. Should sound awesome...
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10-31-2007, 12:01 AM | #4 |
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Re: what do you guys think of this cam ?
well i found out this cam is good for 7000 rpm,s so it will definatly have alumpy idle so i think a set of rhoads lifters will reduce it about 25% off idle till rpm,s come up then let the engine have all the cam. anybody tried these lifters out ?
bob
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I BELIEVE IN JOHN 3:16 |
10-31-2007, 05:12 AM | #5 |
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Re: what do you guys think of this cam ?
You running power brakes? If so, 106 lobe separation is a little much. Need more like 110 or 112. if not 106 will have a crazy thump to it with manual brakes and a really loose converter. Or you can try one of lunatis vodoo cams they make good power down low and have a very choppy idle.
Last edited by nates70lwb; 10-31-2007 at 05:16 AM. |
10-31-2007, 07:59 AM | #6 |
I have a radical idea!
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Re: what do you guys think of this cam ?
You're going to need a 3500 RPM convertor (minimum) and lower gears (4.10 minimum - 4.56 ideal) to take advantage of a cam that big. 10 : 1 compression is really not ideal either. 248/260 at .050" is pretty nasty. I have a low 11 second 82 Z28 street strip car, and my cam isn't that radical. You can also forget about running Z28 valve springs with it they are for use with .490 (gross) lift or lower. You can get away from .500" lift (I've done it) but they'll coil bind before .520/.530 lift. It will probably a nightmare trying to get a 3 deuce set -up in sync with a cam that big also. Unless you are going to race this engine, I'd back the duration back down to the 235/245 range, and it will much more enjoyable overall. Besides that cam it seems like a good set-up. The Comp Xtreme Energy 274 would be a great choice for this set-up, especially if it's going in a truck.
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