litreddevil

iTrader: (4)

i run the 216/220 in my 6.0 and love it i have had it in 5 different motors and in a 5.3 i ran a 12.59 n the 6.0 it ran 12.53 in the heat with 30" tall tires

Superado

iTrader: (37)

whose cam is this? part #?
Thanks...

Superado

iTrader: (37)

This is recommended on ls1tech by the sponsor and several members. This is a quote from epp's website:

http://www.exoticperformanceplus.com/movies/sts1.mpg

http://www.exoticperformanceplus.com/movies/sts2.mpg

http://www.exoticperformanceplus.com/movies/sts3.mpg

Is this duration & lift crazy for our trucks?

Thoughts...comments...

I have talked with Bob from EPP before and he is very helpful and sharing with his knowledge. I think I will call him...

parish8

iTrader: (6)

without rereading the entire post i am going to say that is a prety big cam. i had a slightly smaller cam than that on my 6.0 and 408, on the 6.0 it was prety lumpy and lacked low end. NA that cam hit about 4200rpm on the 6.0. for that cam to work well with a 5.3 you would need a stall in the 4500rpm range. if your building an all out drag truck and go with that high of a stall then yeah it would be a great cam.

that lift isn't all that excisive but i think i would try and keep it under .600

Superado

iTrader: (37)

Thanks, that gives me some boundaries then...

ranwalk

iTrader: (1)

I dont know much about cams. I do beleive though in not trying to make somthing other than what it is. A procharger will not make a ton of low end and trying to make it shine down low is just going to hurt the end result.
I am currently running a 216/218 FMS cam(origninally for the Whipple)
Allan said it is too small and my next step should be a cam change. I will be going with his recommendation and it will most likely be somthing in the 220-224 range(not sure on lift) Maybe the 5.3 would like somthing a little smaller though?

Superado

iTrader: (37)

My thoughts exactly...

I am still open for suggestions, for sure...

TurboBerserker

iTrader: (1)

For a turbo, reverse splits are awesome. For an SC, you need the exhaust bias so your standard dual pattern cam is preferred. The lsa is specific to try to get as close to 0* overlap as you can. See my rule of thumb in one of the first couple of posts.


Some general info on LSA and cam timing:

.........................Varying Lobe Separation Angle.....................................
...............Tighten............................ ..............Widen
-------------------------------------------------------------------------
Moves Torque to Lower RPM..............Raise Torque to Higher RPM
Increases Maximum Torque................Reduces Maximum Torque
Narrow Powerband...........................Broadens Power Band
Builds Higher Cylinder Pressure............Reduce Maximum Cylinder Pressure
Increase Chance of Engine Knock........Decrease Chance of Engine Knock
Increase Cranking Compression...........Decrease Cranking Compression
Increase Efective Compression...........Decrease Efective Compression
Idle Vacuum is Reduced....................Idle Vacuum is Increased
Idle Quality Suffers..........................Idle Quality Improves
Open Valve-Overlap Increases...........Open Valve-Overlap Decreases
Closed Valve-Overlap Increases.........Closed Valve-Overlap Decreases
Natural EGR Efect Increases..............Natural EGR Efect is Reduced
Decreases Piston-to-Valve Clerance....Increases Piston-to-Valve Clerance
-------------------------------------------------------------------------

.........................Advancing/Retarding Cam Timing................................
...............Advancing.......................... ........Retarding
*Begins Intake Event Sooner...................Delays Intake Event
*Open Intake Valve Sooner...............Opens Intake Valve Open Later
*Builds More Low-End Torque..............Builds More High-End Torque

*Decrease Piston-Intake........................Increase Piston-Intake
...Valve Clearance................................... Valve Clearance

*Increase Piston-Exhaust........................Decrease Piston-Exhaust
....Valve Clearance.....................................Valv e Clearance

TurboBerserker

iTrader: (1)

Aharrold: If it where my truck, given your mods and a 3200 stall in the converter, I'd put in a VHP 062 or 066 if I didn't want to wait on a custom grind, but then again I do my own tuning and tune for those two cams.

062 -- "ASP-KICKER "
DUR @ .004" 272*/280*
DUR @ .050" 210*/218*
LIFT .551 / .551
OVERLAP 52*
LSA 112*

STREET / STRIP CAM - HIGH LIFT
POWER RANGE 1900 TO 6000
TUNING & STALL CONVERTER REQUIRED
CRISP THROTTLE RESPONSE - LOADS OF "TORQUE"
CHOPPY IDLE


066 -- "STANGBANGER"
DUR @ .004" 282* / 286*
DUR @ .050" 220*/ 224*
LIFT .551/.551
OVERLAP 57*
LSA 114*

STREET / STRIP / BUTT KICKING
POWER RANGE 2400 TO 6500
TUNING & STALL CONVERTER REQUIRED
POWERFUL CHOPPY IDLE

IMO the epp cam you listed above is too big for what you're trying to do. It would be a monster tune and wouldn't have good street manners (it's bigger than my current cam...).

If I was going to do a custom cam, I'd run something like a 212/224 on a 115-6 lsa. For stock heads, I'd stay around 55x lift and run Z06 springs as you've mentioned.

zippy

That is too much cam for a 5.3L. You could run that on one you race, but a stock shortblock truck doesn't like that many rpm very long.