Thread: comp or crane

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Originally Posted by DennyW

All I can say is if you have ever checked what the guys run at the track, with that horse power, I can assure you, it's way more than that. I have watched a few myself, and have never seen 7-12 lbs on any that I saw. That would be real scary, if I saw that pressure.

at 7 psi i think you could hear the crank jump up on the oil flim then you get on it and hear it hit bottom when you get off it looooooooose

i only run 55psi max on my bigblock idle is around 9-15 with 10w30 it alittle higher with 20w-50.

Originally Posted by 500caddy

i only run 55psi max on my bigblock idle is around 9-15 with 10w30 it alittle higher with 20w-50.

yep hot ? have had them like that. hi side of .002.9 and a hv 77 will get you there

what kind of pressure do you look for pat??

i like 20 hot and 60- 65 and that about it at 10psi for every 1000 is BS i have had them at 003.+ on mains and rods hot 13 and 60 not a big deal just hard to tell someone that it will be fine

yap i hear you brother thats old school 10psi per 1000 rmp. man my little 377 would have 100psi of pressure lol. i run mine around 15 idle 55-60 max. some of those nascar are only running 30-40 of pressure

long as the pump keeps up any more just take HP to run that pump and wear the cam gear off but i have to fight with guys on this all the time first thing they say i want 500HP and i want a HV oil pump full roller engine for less then $2500 OH and a year warranty

some good points denny .i here you about the rods .that why on a big block with heavy pistons like them abit loose so the bearing have room not close up at the sides the bearing deal i have done many times . break a set of mains +1 or -1and rods to get the size i want or just put all housing bores where i want them and grind in the cranks size i want .but this is hard to do with a new 1500.crank .but have done it on the low dollar cranks cheaper then buy two sets of mains and rods . i like to keep 001 up and 001down but adds up fast$$ . just did a 351 w4 engine that the crank was ground .020 .020 when i got it and did not want to grind it any more save it for another grind size was good just abit big for my liking. i recond the rods put the rods size to get were i wanted for oil cleanrances did not want to grind on the crank any more have done this on the mains to but i always never go to the big size of the housing bore spec , dry sump you can turn it up or down psi for your liking nice ..CV has a by pass you can do this with a wetsump. the bettter the parts the less you need for running oil cleanrance? still like them abit loose but on a wetsump drag engine more you run the more oil pass off the bearing with a HV oil pump it works long as it has 65 it will live have many out there

Hi Isnt crane and comp the same company?

Originally Posted by FFM

A friend of mines dad has a Nova with a 468 with a 8/71 blower on it, just over the 1000 HP mark, and he said his oil pressure runs 7-12 PSI and he never had any problems lol.
Any thoughts on this??

Yes kids this is why you don't get high off your own supply.
I think he may mean his boost.
A 1,000 hp 468 with a 8-71 ?

Bartender,,,,,,,bartender,,,,,,,I'm trying to learn here,,,set um up on me