Yes

_

 

We've used the cam many times.

 

...and it is going to stink to high heaven, but that may not matter to the people who buy it.

 

What happened to the part #"S?Traver

 

I'm really interested in this cam.Do you have the part # for it Matt?Traver

 

I'm really interested in this cam.It pretty well has the same lift as my 234/242 on 1.8 rockers 629/630 LS1 grind.I'm curious as to what would happen if you would change the LSA up a little like say 110 or 112?I think I'll give someone a call to see what they think since nobody really knows anything on here?! Traver

 

I have been hanging back on this but the results are in:

We built two pretty much identical LS7s with identical ported L92 heads and L76s. One had stock rotating assembly and a slightly modified GA cam which was 239-251/594/106. The other was LS7 with Callies RA and virtually the same CR and ~228-236/610/112 cam. Both were in MN6 C5s and run on the same dyno.
The one with the small cam made 529/530 the one with the GA cam made 526/519
I tuned both and the GA cam idles fine but does not like to run in 6th gear <2000 rpm and is often cranky <1800 rpm in any gear.. The small cammmed is happy evrywhere makes more low end torque, runs smooth and gets 24 MPG on the highway while the GA struggles to get 18 mpg. I overlaid the dynos and GA carries about 5 more HP after 6500, but well after peak.

Bottom line is the GA cam is coming out, cause it is just not worth it.

Is this similiar to the engine and cam above ? You be the judge-

 

Thanks for the reply!The problem with your comparison versus what I need to know is that you are running the 1.7 rockers and L92 heads where as I'm running 1.8 rockers and LS7 heads ported on the exhaust side.Now if there is that big of a difference we have yet to find out.I do see alot of L92 flowing close to mine in CFM so maybe it's a wash?!I wish somebody here did the same test using the same cams as you but with the LS7 heads.Thanks for your info though.....seems to shed more light on things!Maybe someday soon someone will come up with a great cam design for these heads that are the be all end all.We shall see I guess? Traver

 

I have been researching this also. I am building a 427, Ls7 head, LS7 intake motor. I'm pretty close to going with a 240/250 .600 112 cam. Probably custom. I think from what I've seen, there is still alot of trial and error going on. Just depends on what your looking for in a set-up. Time will tell. I'm hoping this will work for me.

 

1) The ENGINE likes it.

2) It makes more power and torque.


Isn't that why we "cam" an engine? Perhaps figuring out what the engine likes is our real problem.

 

Sorry to bring up an old thread but after searching for a part number and not finding anything I figured I would post the part # I found elsewhere

Stage 3 cam - 88958723

 

What about it Matt? Is that the correct number?

 

I tried to get a part number posted over here awhile ago with no answer.Not sure if it was top secret or what?I talked to someone at SDPC and they informed me that a handfull of these cams have been sold with no real feadback on them.Now if this means there not working real well or they are working awesome and nobody wants the secret out is yet to be seen.I think it would be a good cam for the juice but would be a mutt on low end grunt?!Just a thought.I am pretty interested in this cam so if anyone out there has run one and has some numbers,would be cool to here about it.Traver

 

And I bet it makes peak torque sooner and carries it for a good amount of RPM too. Picture a mushroom head.

 

The numbers at .050 may look similar but I can tell you the valve events are not even close. ITs not a good comparison IMO.

 

by the sounds of this cam, it would not do too good with any power adder with all that overlap and exh. dur. and peaks (sharply) around 7500rpm. this cam reminds me alot of trad. pontiac engines builders and how they use alot more lift and duration on the exhuast side to give it more effectiveness and in turn helping the intake side as well. though this is a little extreme, i may try something with my next cam grind just for gits and shiggles. and it does seem there is a little secrecy around this cam, and perhaps someone feels a cat is loose from a bag?

 

Stage 2 p/n 88958722
227I 239E 551 lift 108LSA with 1.7 rockers

Stage 3 p/n 88958723
233I 276E 595 lift 107lsa with 1.7 rockers

 

Any more results with this camshaft?

 

43 degress of spilt, wow. someone better look at the exhaust side/port of the motor.

 

Intake to exhaust flow ratio