koumiss45

I just picked up a set of cams for my 4.6 motor I am building. They are .550 lift, 234 @.050", a 114 lobe seperation, with a 290 duration. The lope should be pretty good, but do you think this is too much?

oxfordgt

I think you have your specs mixed up on the cams because what you wrote isn't really making sense. I sure hope you have a blower, nitrous and stay NA in that build. The specs you put downare very out of wack.

What you wrote should read like this:
.550/.550, 234/290 @ .050", 114 LSA I guessed on the exhaust lift

With a .550 lift suggests its a NA cam
With a 234/290 duration suggests is a nitrous cam (way to big of a difference between the 2)(will lose alot of boost in a FI application)
With a 114 LSA suggests is a blower cam (same overlap as a stock PI cam) (good for a blower but 115-117 would be better)

Like I said recheck your specs cause that cam isnt very good and it really wont lope.

koumiss45

Wow, sorry I got those all screwed up. Ok the cam is a 234/234 @.050, has a 114 lobe seperation, and a total lift of .550. Hope this makes more sense now. There is still some factor of duration that is listed at 290 that I cannot understand, maybe a total duration or something. This should be ok for a blower set up right....and power should be in that 3000 rpm range, right?

35thAnni99GT

290 is advertised duration; 234 is actual

.550/.550 234/234@.50 114 LSA is going to be like a stage 2 N/A or weak blower cam

koumiss45

Ok well this should be ok. I am planning on building this engine this summer. I most likely will use the short block out of an 04 cobra (got one) and pi heads. I am going to be running NA (maybe bottled this summer) then in winter I would like to go with a supercharger. I have a p1sc compressor but none of the brackets or tubing so this may find it's way here, or I will sell it and get a vortech. Can you compare this to a more widely known cam on the market.

koumiss45

So this cam would work fine on a stock setup as well then being a stage 2 na cam, i know new valve springs would be needed and I think i'll port the heads while it's out but it would start and drive without a tune so that I could drive it to the dyno? I am going to be using a sct xcal3 so I was thinking have them map a close tune then take it to a dyno when it's time for the blower. Wouldn't they just need the compression ratio, air flow, cam specs, and inj size to get close?

tbirdscwd

+1 those sound very similar to a Comp Cams stage II N/A cam.

koumiss45

Does anyone have the part number to that cam...I think that would be the cam to tell sct when I am having my tunes set.

koumiss45

anyone more?

tbirdscwd

The cam part number is 102600 but the grind number is XE270AH. If I remember correctly the lift was .550/.550" duration was 234/238 @ .050." Advertised duration was 270, 274. So thats very close to what you are gonna be running.