damn, didn't know people hated pumps so much............ do i need it wasn't the question, would it hurt was...... oil pump is pretty easy to get at when you motor is on a stand flipped upside down........

steel gear for me (roller cam).......... i really didn't think 20% could cause a problem.... i understand the stock valleys and releifs are for the stock volume but is 20% more really going to kill anything?

seems i've hit another subject that is like guns........

i'll look into a nice stock volume pump...... and maybe contact some of the vendors and see what they have to say......

leonard, looked at some of the blueprinted ones before but they are a bit pricey for an oil pump......

 

1. if you haven't already, get rid of the stock pan. The extra volume will help in a number of ways.
2. wouldn't go to a HV pump unless you had a larger capacity pan, I have heard of them sucking the pan dry, don't want to stack a bearing..
3. I had a blueprinted pump put back in my motor before the car met the wall, motor would see 7800 RPM, so a blueprinted pump should be plenty.
4. Spending some coin on a good oil pump shouldn't be an issue if you consider that the oil is essentially the lifeblood of your motor..

Just my .02

Derek

 

i was already highly considering replacing the high volume pump on my windsor with a stock pump and you guys have fully convinced me to change it out.

would the stock volume be sufficent to supply dual remote filters and a oil-water cooler on a basically stock motor? Hydraulic flat tappet. i also have a & qt. Canton road race pan.

 

I run a melling HV with a hardend shaft. A deep sump pan at least 7qts is needed for a HV. Or you will suck it dry and lose prime then you will be in deeeeeeeep poopies. As far as bolting one in you won't have any issues unless your running a main girdle. If you are, get out your damn grinder, I had to grind down the stud that sits up against the pump and a little on the pump itself.

 

is it going to hurt? probably not. Will it suck down some horsepower? Absolutely. That's the concensus of everything I've read from knowledgable people on the internet and in several books on building high performance engines and engine blueprinting.

I haven't priced out blueprinted pumps. I just know that a lot of the Cobra guys use the services of one of the turnkey builders. He'll blueprint them for $75 plus shipping. I guess that's pretty pricey when you consider the cost of an OEM replacement pump (I just looked it up and didn't think they were that cheap).

In your case, since you're just freshening up an old 5.0, I'd just slap in a OEM replacement pump and call it done. If/when you build a fancy motor, then I'd go for a blueprinted pump (hv if necessary)