The cam is going into a 1971 C-10 truck. I am looking for a cam that sounds really choppy. I have a mildly built ls1 block. Not realy looking for HP but if it comes with it thats fine. Does anyone have any recomendations?

 

If you're looking for a choppy cam, with not too much emphasis on HP (but it will still perform well). GMPP Hot Cam.

 

It's relatively cheap and you can run LS6 springs so you will virtually never have to worry about swapping springs again. For a lot of chop look at the ASA cam. Won't make great power, but will be better than stock.

 

My cam is pretty choppy. It makes fairly good power too for what it was designed for. It's good on spring life as well. (soft lobes) I know you said you didn't care about power, but, with this cam the more you let it breathe the more power it will make.

 

Man, go with the Hot Cam.... choppy as hell, and as mentioned before - reliable !
Also, very cheap and runs Ls6 springs....

 

The heads have comp springs so i can handle a high lift cam. And my pistons have valve cuts on them. so my setup can support a high lift but i know that lift is not all that is going to make it choppy. What LSA should i look at? ie. 112, 114, 115. I was thinking a t-rex.

 

For lope, it's overlap.
Also, a big, traditional split with a 112 or below LSA will do it.



Cams to look into, from small to large....

Hot Cam (GMPP)- .525 lift, easy on springs, 112 lsa, chops hard
ASA Cam (GMPP)- .525 lift, easy on springs, 110 lsa, lopes hard.
TSP 231/237 (Texas Speed--->) Lazy ramps, easy on springs, 112 lsa, chops hard, top end cam.
F14 (Futral) Cam Motion lobes, great tq across the rev range
G5x3 (LG) aggressive lobes, max power!
TRex (Thunder) aggressive lobes, max power! LOPES HARD!

All of these lope hard.
There's tons more to choose from, I just threw those out from the top of my head.

Also, tuning affects the audible "lope" too.

 

cam in my sig should lope hard. at least i hope it will

 

You need to read the cam guide. It's a sticky at the top of this forum....
https://ls1tech.com/forums/generation-iii-internal-engine/327734-cam-guide.html

You have a LOT to learn, and apparently forget as well.

 

You'll learn more than you would even know to ask.

 

You missed the Grand AM Cup cam:

239/251//525/525//106 max power and lopes like a SOB from hell

Keith

 

Read the article. A lot of info thank you but in there it stated "Many enthusiasts purchase a camshaft strictly on the basis of how it sounds. A cam with generous overlap creates that distinctive choppy idle that just sounds cool."
But the choppy sound that i am looking for comes with cams with a LSA of 112 and lower like the GMPP cam with a LSA of 106??? I still do not understand.

 

LSA below 112.
Big split (like the ASA with a 226/236 int/exh).

Go down to a 106 lsa and you're going to have tuning nightmares. Stay above 110lsa.

 

Fm14.

 

Was there a part defining overlap? It also helpsa LOT to use the search button and read old threads.

Overlap comes from a lot more than simply the LSA. My cam has an LSA of 113, and it lopes HARD. (13.5* at .05" lift)

The equation for overlap is:

[(intake duration + exhaust duration) divided by 4] - LSA, and finally multiply by two.

You can use this to determine the overlap at any point of measurement. Most common measurements are at .05" lift but taking more into considerion, if you can find them, will tell you more.

 

choppy cam = Paul Bunyan cam

 

i have to say my fm14 on 112lsa doesnt lope all that hard, but i think maybe my magnaflows mask its effect

 

hotcam gets my vote in this situation. or just drop the idle a few hundred rpm

 

ASA cam gets my vote, i got a idle clip. lopes pretty nice. it makes good power too. made 360/360 SAE corrected through an a4, ls1 intake, stock TB & pulley.