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Was told a g5x4 on a 111lsa will work without fly cutting the pistons.
Does this seem accurate?
Street and Track car.
That doesn't sound accurate to me. But, I would call LGM and talk with Lou. I know it's a good hp cam and most of Lou's cams work well with NOS. But, I would not think that it would fit w/o flycutting on a 111 lsa. As the G5X3 barely squeaks by on a 112 lsa. And the X4 surely has more duration and/or lift.
It fits without flycutting. There is more to weather or not a cam will fit than duration and LSA. The TreX cam is a 242/248 110 and it fits. Timing events dictate weather or not a certain cam fits more than duration and lift. A 245/250 112lsa has fit a stock headed motor without flycutting before, fwiw.
St. Jude Vendor Donor '03-'04-'05-'06-'07-'08-'09-'10-'11
Originally Posted by SPANKY LS1
It fits without flycutting. There is more to weather or not a cam will fit than duration and LSA. The TreX cam is a 242/248 110 and it fits. Timing events dictate weather or not a certain cam fits more than duration and lift. A 245/250 112lsa has fit a stock headed motor without flycutting before, fwiw.
Shawn
Shawn, How fast did you go with the Cam only G5X-4 ??
From: IF YOUR BIG DOLLAR PROJECT DOESN'T RUN 9'S OR BETTER ....BURN IT ! SHUT YOUR MOUTH AND GRAB A LANE ! CHICAGO IL. -------- HOME OF THE FASTEST STREETCARS BARNONE !
Sean/Juggernaut (01-Z on LS1TECH ) Loves his X4 Cam (a.k.a. Juggernaut Cam ), The Car is Pictured here at U.S. 41 Drag Way Launching like an Animal.
G5X-3/ 150 shot 9.768@137.09(1.349)
LG Juggernaut cam/150 shot 9.643@138.39 (1.364) DA +1178
The Quickest and Fastest Stock Longblock LS1 in the Country.
Last edited by JOHNNY P.; Feb 26, 2005 at 04:14 AM.
It fits without flycutting. There is more to weather or not a cam will fit than duration and LSA. The TreX cam is a 242/248 110 and it fits. Timing events dictate weather or not a certain cam fits more than duration and lift. A 245/250 112lsa has fit a stock headed motor without flycutting before, fwiw.
Shawn
Shawn,
How do you like your G5X4? I read where you went to the X4 and you saw a 10-12 rwhp/rwtq gain, is that correct? I like that. Did you have the X3 prior to the X4? Did you see a whole lot of change in idle characteristics? How is the car in the 35-40 mph range cruising around town? I currently have the X3 (and a few "other" components ), but might consider going bigger in order to get over 480 rwhp and get a nice bump on my torque.
It fits without flycutting. There is more to weather or not a cam will fit than duration and LSA. The TreX cam is a 242/248 110 and it fits. Timing events dictate weather or not a certain cam fits more than duration and lift. A 245/250 112lsa has fit a stock headed motor without flycutting before, fwiw.
Shawn
You're correct. There's more to it than just lift and duration. But, those two values are quite crucial when it comes to clearances. The other timing events are unknown pertaining to these products
And even though the Trex fits. I think most would agree that flycutting the pistons would be a smart step to ensure enough clearance just in case a valve decided to float a bit. Flycutting simply expands the safety net especially if you plan on running the engine in the upper rpm range alot.
But, we all have our own safety margins that we are comfortable with. To each his own.
And if someone would actually post some numbers on the X4 we could compare them to known workable parts.
Lou posted a while back, that the X3 on 112-113 had piston clearance but, was less than he would recc for the extreme driver.
So my advice still stands; call Lou and discuss the matter with him directly.
So my advice still stands; call Lou and discuss the matter with him directly.
Yes Lou please PM with a spec or idea of the x4 cam for my car with a safe p to v clearence.
I was told on another board (ls1tech) that a g5x4 on a 111lsa will work great for my setup. But if you reccomend it safer at 112 or 113lsa let me know.
I have had a G5X3, but nothing like Seans car (01-Z as referred to above). I just know that the X4 will fit, I don't know the exact specs, but based on the X2 specs (which are public), and the X3 specs (which are not, but I "obtained" a cam card), I assume the X4 is extrapolated from the X3, which would make its specs smaller than the Trex, but I don't know for sure....
I have had a G5X3, but nothing like Seans car (01-Z as referred to above). I just know that the X4 will fit, I don't know the exact specs, but based on the X2 specs (which are public), and the X3 specs (which are not, but I "obtained" a cam card), I assume the X4 is extrapolated from the X3, which would make its specs smaller than the Trex, but I don't know for sure....
Shawn
How about PM'ing me the specs on the X3. Everyone that hears my car wants to know what the cam is. And I feel like such an idiot when all I can say is; it's a custom cam and approx. ....
If other vendors wanted the specs, they would buy the cam and have it checked. Or, they could call Comp and talk to one of their buds over there and have them grind it for them or whatever. That's been the reason given on why no specs given.This secret crap is getting old. Hey Lou, nobody cares!
Why anyone would buy a cam without getting the specs and install it, is beyond me.