I googled the above and the first hit gave me these specs (after converting what i think is mm lift to inches lift)

intake: 0.395" max valve lift, 196.5 duration
exhaust: 0.395" max valve lift, 191.7 duration

Does this seem correct? After searchin through about fifty posts that come up when searching this forum for stock eco cam specs, I didn't find any numbers. Let me know, thanks...

Were you using this?

http://tunersource.gmblogs.com/Racer-Tech/ECOtec-L61-Build-Book/ECOtec%20CAMSHAFT%20INFO%20SHEET.doc.pdf


Thats the only info ive ever found. I even called GM Racing and they didnt know off hand.

You wont find the specs on this site.




"Go Before Show Yo."
CARCUSTOMS.NET, THE BEST SERVICE ON THE ORG!!!

Yep...that is the site. It says the pre-07 eco's had a more aggressive cam...but the HP/TQ figures did not change IIRC. It must be a rather trivial change. I guess I just wanted something against which to compare all the aftermarket.

For example...if those are the correct specs for stock...then even COMP's stage one would yield a nice gain (if installed and timed correctly)

If i remember when I degreed my factory cams i had

Intake and exaust about 385 lift and 180 duration, not sure on the lobe centers or cam centerline

-Ben



Overall Best times
60' - 1.857 (6/24/07)-(Drag Radials 205-50-15)
330' - 5.552 (6/24/07)-(Drag Radials 205-50-15)
1/8 - 8.690 (7/22/07)-(Conquesrt Radials 195-70-14)
M.P.H. - 81.87 (7/22/07)-(Conquest Radials 195-79-14)
1000' - 11.274 (7/22/07)-(Conquest Radials 195-70-14)
1/4 - 13.442 (7/22/07)-(Conquest Radials 195-70-14)
M.P.H. - 104.08 (7/22/07)-(Conquest Radials 195-70-14)

** ALL MOTOR **
* 181whp @ 7600rpm *
Website: www.benwenzeljr.com

2007 GM Tuner Bash Runner Up - Broken Pressure Plate
#1 Qualifer 13.857 @ 101.49

am interested in this too...I have Patriot's cams which I don't even think they sell anymore...they gave me

Intake 192 @ .050 .243 Lift

Exhaust 179 @ .050 .235 Lift

I also saw the GM cam info sheet...can anybody else shed some light?