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Post by dolzinnig on Dec 17, 2010 19:42:03 GMT -5
My '65 400 was completely rebuilt before I bought it but hasn't been run yet.
I'm going through it now and also studying the documentation on the rebuild.
It has a "High Volume-High Pressure Oil Pump" from Mondello. Part #SP-756. Pickup set at 3/8" clearance to pan.
Anyone else running this?
The machinist who will be drilling the pilot hole in the crank for a manual transmission said not to run a high volume or high pressure oil pump on this engine. He said it moves too much oil and they are notorious for slow oil return to the pan and that combo results in starved bearings.
What do you guys think?
-grant
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Post by red71 on Dec 17, 2010 20:07:21 GMT -5
Good info from your machinist.
If you are running a stock pan DONT run that pump.
Is the engine a "stock" rebuild ?
what are your plans for it cruise, car show stuff?
or race it?
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Post by dolzinnig on Dec 17, 2010 20:25:02 GMT -5
forgot to mention that he was also specific that "if I was running the stock pan" not to run it.
I am running the stock pan. The rebuild is to close to stock specs.
cruise, car shows, dont plan to race it. Maybe a 1/4 mile run here and there, but wont be thumping it.
Engle 2718H ep-18/20 hyd cam, roller tip rockers, .060 over. nothing drastic.
-grant
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Post by red71 on Dec 17, 2010 20:55:18 GMT -5
I would definitely pull that pump.(on this build)
put a std pump. you should be fine on the track
w/ the stock pump and pan. Keep the RPM
under 6,000 for long blasts on the track or highways.
If you go deep pan than go w/ the HV pump.
this is from experience and research.
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Post by dolzinnig on Dec 18, 2010 2:21:57 GMT -5
I appreciate the feedback. Most likely going to run a standard pump. This one has never been used so I'll probably sell it. Doubt I'll need it anytime soon.
-grant
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Post by oldsproject on Dec 18, 2010 12:59:18 GMT -5
I would definitely pull that pump.(on this build) put a std pump. you should be fine on the track w/ the stock pump and pan. Keep the RPM under 6,000 for long blasts on the track or highways. If you go deep pan than go w/ the HV pump. this is from experience and research. Absolutely nut on! |
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Deleted Member
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Post by Deleted on Dec 21, 2010 14:48:58 GMT -5
if you want to get a little more pressure, not volume, out of a stockish pump, you can shim the spring on the bypass too. some guys just take a 1/4" nut and put it in between the spring and pin.
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Post by dolzinnig on Dec 23, 2010 22:36:47 GMT -5
Got a stock pump today and pulled the high volume / high pressure off. I'll give this a shot without modification. Should do what I need it to do.
Thanks for the input guys.
-grant
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