Cam suggestions

[nnag]

Looking for a cam for the winter build.

Stock bottom end
317 truck heads
LS6 intake
mp t76 front mount / intercooled
e85 with possible meth injection (if needed)

4l60e / 3500 stall / 3.73 gears

Most of my reading leads me to think a single pattern like a 225/225 114lsa is a good choice, and some others suggest a reverse split like a 227/224 114lsa. Also the good old z06 cam, cheap and easy and very mild mannered. I am not concerned with the sound of the cam, just the performance with the whole setup.

Any input or suggestions?

- Brandon

[BFJ]

I have run both reverse split and standard duration cams in a turbo set-up. I liked the reverse split on a clutch car. I'm still experimenting with auto cars because I like to run a real tight converter.

Here is a 331ci ford motor I just built. The motor is very basic, nothing trick and a catalog grind Comp cam with 224 duration, ground on 112, installed at 109. The motor is not an rpm monster. Shift it at 6000rpm and it runs 10.1x at 139 with a 3.27 rear gear and 3250 race weight. We also run it on e-85 with a Snow Performance meth injection, 2 nozzles and 100% meth.

These are real world dyno numbers...
YouTube- Danny's Mustang on the Dyno

[RS_SS69]

Cheap and easy for the stock lower just go and pick up a 02+ Z06 cam, it will work excellent for your setup, when you go forged or larger cubes then worry about a custom cam designed around your setup. Its really not worth the extra money for now. Its been proven many times, check ls1tech, read through some of the threads. Unless your wanting 800rwhp then you dont need anything more than the z06.

[DanDan]

Thats a monster

[94ltz]

I thought you already had a cam for your car nagg? When i did your stall didn't you have a cam put in a couple weeks later and could't get the tune dialed in???

[nnag]

Yes, I have a torquer 2 in it now, not a good cam choice for boost. So it will be coming out and putting something else in.

[94ltz]

LOL my bad i didn't read everything lol hell i even forgot about you texting me about you going to boost.. Hell i know some one that is wanting to sell a full D1 kit for a LS1 car if your interested text me!

[nnag]

One more question regarding ls6/z06 cams. They are so similar, does it even matter?

2001 LS6 cam
207/217 .525/.525 116 lsa

2002+ LS6 cam
204/218 .551/.547 117 lsa

[Jose93z28]

From what I heard/read you want to get an 04 and up ls6 they say the older ones aren't as good, we bought one from an 04 for our 5.3 turbo mustang project.

[Clint@A.I.R.]

I'm a fan of a little overlap, and extending that Durration up higher for smaller cube motors, in a FI car. You can get away with a prety big cam, all depending on your setup, gears, stall, what your going to use the car for, etc <--- this is the key role here. Going bigger durration like a 230 or 240 duration cam does not absolutely make it a bigger cam per-say, yes it's bigger, but what it effectively does is extend your usable power later on in the upper rpms area. Choosing a cam you need to do so based on your surrounding setup, not what is most efficent, or what a "turbo" cam is. Example, If you got a smaller turbo, and a street driven car, with 3.42 gears on a Auto or M6, then stay in the 21x to Low to mid 22x Duration range max. That would be good for that setup, and would utalize the full extent of what that engine is going to see. You got a big stall, gears, and big turbo to boot that takes longer to spool, I'd extend that Durration closer to 235+, yes even in a smaller cube motor. By doing so, your extending that usable power where you need it. If you got a big stall, big turbo and gears, and a small cam "it's not ideal", and your leaving usable HP and TQ on the table. Lift keep close to .600 roughly to help valve float unless you go hollow stem. and LSA 114 to 115lish area. If the motor is setup for RPMS, let that smaller Cube motor REV. There are people out there making crazy power with big cams, smaller CI.

Also a fan on stright up or reverse split cams for Turbos.. Hey go reverse E-MAX cam. :-) 228/224 .610 .588 115lsa +2. Made 430 Wheel HP on Heads Cam and Intake while passing emmissions. That migth be a good grind for you, but again depends on your surrounding setup.

Also, just an observation. Nnag, you got a pretty loose comverter and 3.73 gears for that street / sometimes track turbo setup. I would either go to 3.42's, or get a tighter converter, or both. Also concider start thinkin of extending the rpms closer to 7000 shifting if you keep the current setup. With a turbo, the way she is now, she's going to be a shifting mo-fo :-) I would use the power of the turbo more, and some of the suggestions above will help you do so.



Just my 2 cents

[94ltz]

That was a big "just my 2 cents" buddy lol

[Clint@A.I.R.]

ok it was 4 cents :) guess i had alot to say..

[RS_SS69]

Nnag, if you really want to buy a new cam at $300+ then by all means do but ive done tons and tons of research and the 02+ ls6 cam is all you need and at 800rwhp you may leave 20-30hp on the table but thats nothing at that level. Also if what Clint said is true and you have a loose converter and 3.73s you will need to tighten the converter and step down numerically in gears or there will be no such thing as traction...ever...just get the ls6 for $100 and spend the rest on other supporting mods.