I would like to make a custom grind cam with the specs 223/233 and maybe .550/.550 lift. I think this would be decent since it is bigger than the 305 cam but should make alot more all around power than the 306. It should also be a perfect size with heads and should pass emissions too. Can comp cams make this and XE cam. By that i mean that i want it to have the same aggressive ramps as there other XE cams. Do you guys think it would be better to get this on a 112 or a 114? I am starting to think that a 114 would be better since it would have a broader power band.

 

www.cmotorsports.com

they can answer every little question and make suggestions too

edit:
thats going to run out of breath real fast with such relativly little intake

 

Why woud it run out breath fast? it is bigger than the cc305 so it should peak around the same area. I would like make peak power at about 6200 rpms and shift at 6300-6400rpms. I really want this cam to make a bunch of low and mid range power, pass emissions, no cam surge, and be able to still trap 115-117mph with heads.

 

How about a 224/230 .567/.584?
That's the Comp Xtreme lobe profile (#3192 on the intake and #3194 on the exhaust)... both on 1.5:1 rockers. Then again you could run the #3315 (230*@.050) on the exhaust with a 1.6:1 rocker and .544 lift.

Lots of options depending on the mix of rocker ratios and lobes.

As for running out of breath... depends on where you want to make your power. Should be good for 6200 rpm or better though.

-Mindgame

 

XE lobe #3314 and 3192 both have 224 degrees duration at 0.050". #3314 has .503" lift with 1.5 rockers and #3192 has .567". #3316 and #3196 are 236 @ 0.50" with .521" and .585" respectively. The #31xx lobes are very agressive and will require a stout spring if you want to rev them up very high. I am using #3192/3196 on a 116lsa for my blower car. I think these lobes have a bit too much overlap for a stock CR. But since you don't specify your combo, it's hard to be too specific. The CC306 has way too much overlap for stock CR, IMHO.

Rich Krause

 

witht that intake/exhuast ratio i cant see it revving all that high.
it would be like an l98 on steriods

 

rskrause, i have the 306 in my car and the low to mid range power sucks and since i have stock gears it REALLY sucks. So i figure i can either do gears(which i would need 12 bolt for) or just get a cam that will make more all around power. So i get to pick the lobes on the cam? It doesn't look like i have very many choices. Trey, what do you mean the exhaust to intake ratio sucks? It is the same as the 305 cam and the hotcam so i would think it should make power to 6400 rpms easily.

 

What does the intake/exhaust ratio have to do with the revability Trey?
Just curious where you're coming from... I'm probably missing something.

-Mindgame

 

The cam per se will be fine to 6,400rpm. But the heads and exhaust will play a big role in determing if it continues to make power that high or not. In addition, you will need some stout springs along with good pushrods using an XE cam (especially 31xx lobes) up that high. It will be a better cam than a CC306 for most combos.

To order a "custom" cam you need to specify the engine (which determines the core), lobes, lobe separation angle (LSA) and intake center line. You will usually pay more for a "custom" than for an off the shelf cam. But it shouldn't be more then $50 or so. Usually takes a week or two to get for a common core like an LT1.

Rich Krause

 

well more intake typicaly means more bottom end
and more exhuast means more top- doesn't it?
why the 306 revs high?

wont a cam with the same intake/exhuast specs run out of air damn quicker than one with more exhuast and less intake?

 

go to:
http://www.nu-tekmotorsports.com/new_page_3.htm

scroll down to their hyd cam selection an you'll see a. . . 224/233/112

That cam seems fairly close to what you are looking for.




BTW: you prolly dont remember me but we've met before





my.02,
jason

 

We've met before?

 

yeah!. .


ok. . it was back in spring/summer 02 at the Scottsdale Pavillions i had the car thats in my sig. We had talked a little about your car an mine. I dont know the exact month or day but it was about then. That doesnt help much but thats all i can remember. . lol I was at the pavilions a few times that spring, have not gone back since. I miss that place.

 

I dont see that it would make "alot more all around power than the 306", but there is more to a cam than just a COUPLE numbers, lobe profile for one. There are many cam variations out there around 306 numbers though, there is an Ultradyne 230/238 that at least a couple local guys are using, and they like it so far.

But like springs matching your shocks, a cam should match the head, if your going to go custom do it right and get feedback from someone who knows.

 

The problem with the cam that you just mentioned is that it is another big cam. When my motor goes kaboom and i build a little stroker i will look into those. I am not looking into big cams because i want something that will make more power downlow like a 305 but be just a tad bigger. I also don't want to shift as high as i currently am. The 306 will make torque but not as much as i would like with the stock gears. My car feels like i have a huge single turbo and will yank you back like crazy once you hit 4.5k. I want a real broad power band that makes power every where. I don't know much about lobe profiles yet. Who knows maybe i will keep my 306 til the motor blows, but i have emissions in about a year so i would either like to stroke it by then or put a smaller cam in it.

Frebyrd2, I can't say that i remember the car, but if you say we met at the pavillions we probably did. You should take a road trip to the pavillions sometime again. We'll hang out or something.