GREAT Deal On 572 COPO

[Don Kennedy]

Originally Posted by Barry Polley

Hi Don! We Missed seeing you at Pomona and Phoenix! How are things back East?
I have a couple of guys probing me to buy it.
If I could pull it off I probably would.
Except for being in C a l i f o r n I a and trying to race here - all is good.

Miss you guys!

We are doing great; lots of racing here for Big Money we have become the top Broker for race car insurance with Hagerty plus collectors cars and still racing my Super Stocker but I suspect My age is forcing me to slow down in other words hold on to the guard rail going up and downstairs lol

[Robin Lawrence]

Originally Posted by Bobby DiDomenico

Thanks. I was low thinking about 2,500.

You guys are both close. And it depends on what your tuner does. The commanded rail pressure should be run at 180 BAR based on my experience. Several tune ups I have seen a commanded WOT rail pressure set at 200 BAR. The issue is that these High Pressure pumps are piston type and driven by a lobe on the rear of the cam.

As an OEM deal they were never expected to turn 7800+ RPM. they tend to want to float above that RPM. The control valve has a hard time controlling rail pressure. There is a high pressure safety that goes into limp mode somewhere near 220 BAR.

If set at 180 BAR it doesn't hit the High Pressure safety. If set at 200 it can and has.

The more pressure that we applied to the feed pump (tank) the less issue with high pressure pump float. We ran 110 PSI to the back of the Rail pump. It really likes about 140 but most regulators are not built to run that high. Screw Pump in tank worked well.

Robin