I recently just bought my second vette but these new one is a z06 I wanna out a cam but which cam would be best? I'm into racing but I want the car to sound mean! But I also don't want the ride to be rough.

 

G5X3...proven and makes good power. Everyone has their opinion on cams but, imho, this is one of the best off the shelf cams. It has continued to produce good numbers time and time again

 

I'm not disagreeing with Golfinz but......the XER lobes are played out....better stuff available now days.

Good luck with your search.........


Thanks...............

 

Well what do you think is good lsoholic? Im not sure if I wanna do headers, maybe just a cam and tuned.

 

I think you're leaving a lot to be desired if you go with cam/tune but not headers.

If you do a cam/tune, you're leaving at least 15 RWHP at home without headers, IMHO.

 

Do headers, intake, tune and then decide if you want more.

 

Make sure your speakers are on!



Lingenfelter - FLP Custom Cam .592 / .602 - 114 LSA
LG Pro Long Tube Headers
GHL Exhaust
NO CATS!

 

There are newer lobes yes, but do they produce SIGNIFICANTLY more power...no. I have yet to see a g5x3 cam on a c5z produce less than 415rwhp (not saying they haven't) but I haven't seen it. I have seen many other cams, and ones with "newer" lobes, produce a variety of results, and some that don't flat out work. The g5x3 has been around a long time and is a proven cam in the LS based community

And getting a cam without headers is a waste of time/money

 

I used to think so, but now I believe you can get more HP/TQ cam only, than a header only car. The G5X3 has been around for a long time, but it's pretty big for no other mods. I'd say about a 224-228@112 would be pretty nice for a cam only car. OTOH, I did headers very first thing.

 

G5X3 specs are 234/242 @ .050 with .598/.610 LSA 112+4.

This cam^^^for a cam only, no exhaust is pretty big. With a manual and 108icl this pig is gunna want to surge and buck without a good tune. From the sounds of the OP statements...it does not sound like hes looking for performance...just a great sound.

231/234 .643/598 111+2LSA....is the cam I had back in the day. Here is a old clip of the idle quality in my car. And thats with full exhaust. Notice how similar the G5X3 and my cam are...and will sound similar also.
http://imageshack.us/clip/my-videos/200/dpba.mp4/


228/228 588/588 LSA112+2.....would be more of my suggestion.....here is it idling...........http://www.youtube.com/watch?v=HgVl8V7E43E


The exhaust system plays a large roll in the sound of the cam.....keep that in mind.


Thanks......and remember the "bigger" the cam....the more valve spring it will eat....especially on some XER lobes.

 

Does this cam, G5X3, require the tops of the pistons to be flycut because of valve to piston clearance issues?

 

On stock heads, both of the offered lsa won't require fly cutting. If you get it on a 112 lsa then you will have to fly cut the pistons if you get milled heads down the road. The 114 wont require any fly cutting even on milled heads

 

A good read here....keep in mind you have ls6 heads which flow more than the stock ls1 heads.

http://ls1tech.com/forums/generation...cam-guide.html

 

BS. I have seen the latest and greatest grinds the last few years. Nothing beat X-ER power wise, all things relative on numerous dynos. The biggest thing is the newer stuff produced X-ER like power with better valve control. Gentler lobe design and easier on the valvetrain in general.. Almost every 500 RWHP dyno on a c5 Z06 346 LS1/Ls6 over the last several years was a X-ER lobed comp cam. AN orange is an orange is an orange. It still bloody works! JMHO.

 

as well, backing up what I just wrote.

 

Call Stephen at england green in Houston and get you some necessary evil! I did and it has been nothin but ever since.

 

And the bold part of your statement kind of says what I said...same power with more durability and stability.....

And pressure over the nose to control that lobe ?? cost power..

And miles out of the valvetrain ??

Seat durability ??

Less stability with XER....cost power...more lofting...less upper rpm power/stability.

The idea is to control the valve through out the entire ramp. Not snap it open and let it free fall to the seat. Unless of course this is a "race car" and durability takes a back seat to all out performance.

The XER is a proprietary Comp lobe...so of course comp spec'ed it.... But have since designed more stable lobes.....relatively speaking.

And let me ask you this...if the G5X3 was being designed today would they use XER lobes ??

These events can be achieved using a more stable lobe....so why would you not ??
IVO is 8.0 ° BTDC ( - indicates ATDC)
IVC is 46.0 ° ABDC
EVO is 56.0 ° ATDC ( - indicates BTDC)
EVC is 6.0 ° BBDC

Camshaft lobe designs are generally broken down into several areas of the lobe (e.g. above/below lash point, initial opening, approaching reversing direction, seating, etc.), and are described by several characteristics beyond duration at various tappet lifts.

Lift - Displacement
Velocity - Rate of change (derivative) of Lift
Acceleration - Rate of change (derivative) of Velocity
Jerk - Rate of change (derivative) of Acceleration

How would you rate the XER lobe as to the above statement ??

Wonder what a spin tron would show.......

Could you please provide a link to a 500rwhp 346" built in the last 2 years using XER lobes.....


Thanks......and maybe you were correct....XER are not "played" out...but it does seem that there are maybe options more suited for a "street" car.....

.

 

Too much info


What kind of racing?

 

Your post gave me a migraine. You win. Cant be bothered... I have a stable valvetrain put together for my XER cammed LS6 with good springs, rolle rockers and 3/8 pushrods on my TFS heads. Im sure I will be happy with the power. Im well read on acceleration and jerk properties. blah blah... marketing BS. Google.. There are lots of 8,9, and 10 second drag corvettes and F bodies running XER lobed grinds.. Im sure there's more XER lobed cams out there than any other on LS1 motors. GO jump on LS1tech and give yourself a headache buddy. LOL

 

I was not looking to "win"....I was more interested in you backing up your claim of xer domonince.

I ran xer's and lsk's also....but picked up power (stability) when I switch lobes. Could you please post the different lobes you tried vs your xer's, on which I can only assume your claims your based on ??

Again....its all relative. The op wants a "sound", not max performance. The xer's can make good power......I would put a "easier" lobe in a car that is more interested in cruising and sound.....JMHO....

I have a few o-scope graphs of the 55mm base lobes profiles showing ramp intensity...if you'd like to see them.

Also...I'd be willing to bet that your combo would pick up power with a rocker, spring and cam change....under the curve.....

Would.you be willing to bet......any custom grinder would not put xers on yours or the op's engine ??? Steve@LSM, Geoff @EPS, Pat G, Mark@Bullet...etc.

Thanks....and sorry if facts give you a headache.....