HaLLaSS
February 18, 2007, 9:20pm
1
the cam i’m putting in has .563 lift. the ls6 yellows are rated at .570 i believe? is it worth almost maxing out the springs, or just go ahead spend over double the price for the comps good up to .600?
Those springs are only 90#'s correct?
Pewter
February 19, 2007, 2:24pm
3
ls6 yellows will be fine!
the cam i’m putting in has .563 lift. the ls6 yellows are rated at .570 i believe? is it worth almost maxing out the springs, or just go ahead spend over double the price for the comps good up to .600?
you do not want a hig volume pump…high pressure is what to get…high volume drains the oil pan dry
We spoke with the GM engineering team and they informed us that these high flow pumps should not be run on the LS2/3 engines with the stock pan, because they were starving the pan of oil. At first it may not make sense, but what was happening is the high flow pumps were pumping the oil out of the pan faster than it could return. So after a short period of time, the big pump had emptied the oil pan of oil. We were told the big pumps generally go on aluminum block applications with phaser and/or AFM (Active Fuel Management AKA: displacement on demand) hardware. The small pump goes on all iron block applications as well as the aluminum block applications without a phaser and/or AFM hardware.
In conclusion: These high-flow pumps are NOT for everybody. For those wanting to use them, it would be in your best interest to run an aftermarket oil cooler or remote mounted filter so that you have the extra oil capacity needed for this pump!