I'm still not sure what to get, std. or high volume oil pump.
Application is street/road race car, that should have ~6500 redline.
I might add oil cooler in near future.

What would you use?

Standard. Unless you are using a high capacity oil pan, a HV pump can drain the sump... and that could be bad.

Right or wrong I went with the standard volume oil pump but with the "Z28" pressure spring. This will be on my new 370 cubic inch SHP Dart block.

Go with a standard volume, high pressure pump (M55A). Unless you have a large capacity oil pan, then you should be ok with a high volume pump.

For me the major deciding factor is how much clearance is in the bottom end (Main and rod brg clearance as well as rod side clearance).

Secondary factor is oil weight.

From there as others have said, if a HV pump is used, a high volume oil pan is part of the supporting cast. I'm also partial to doing lots and lots of old school oil return work on the block.
Will

I always use a high volume, but I always run the same bearing clearances, and ensure proper drainback to the pan is achieved by deburing or drilling where needed.

I'm not convinced it is possible to empty the pan, unless you hold the motor at 8k going backwards.

-- Joe

I've allready bought Canton RR 7qt. oil pan and
now I have to decide which pickup should I use,
and that depends on the pump.

This will be fully rebuilt engine and I plan to
have tolerances right where they should be.

I would go with std. pump but I'm worried because
this engine will often see 6500 rpm's combined with
additional oil cooler and that could cause oil starvation?!

Could HV oil pump hurt anything?

Quote:

A stock volume pump will feed a SBC at 6500RPM no problem as long as the brg and rod side clearances are not out in left field.

A HV pump WILL "hurt" some HP, it will also bypass a bunch more oil (right back in the pan of course) causing a slightly higher oil temp -but that's about it.
Will

It's like this: the factory SBC oil pump is one of the best of its type, period.

There is just no reason to upgrade it for a street engine.

One of the reasons I'm going with a dry sump is all the complaints about oil pumps lately.

I was thinking about dry sump, but price is an issue here.
What parts are you going with and how much did it cost?



Bogus, I agree, but I plan to road race this car. For start
a few road race weekends a year, but eventually it will be
more track than street car.

New pans are going about $400, but I've seen used ones going for $50

The pump is $600-1200, depending on how many stages

For a tank, my builder built a custom fuel tank that he's converting over.

A road race pan is about $400, and an accusump is about $200

So it's really not that much more.




I look at it this way, it's going to cost about 10% of the total build, and there's a lot less chance of blowing then engine at the track. I've seen too many LT's explode.

Here's Mark's car

http://forums.corvetteforum.com/c4-te ... ump-2.html#post1566357004

Quote:

Very nice oil tank, Brian. Does it have a drain plug in the bottom? I personnally put safety wire holes in the tank drain plugs, just makes me feel better, but I've never had one come loose.

Right now it's a fuel cell, Paul's converting it over. which will include a new lid, a way of cleaning it out, and even putting my low oil sensor in.

Thank for the infos! This is a bit over my budget for
now, so I'll use Canton pan and 10552 pump,
but I'll seriously consider dry sump setup for my
future 383 racing engine!

BTW, what do you think of this setup?

http://cgi.ebay.com/ebaymotors/SBC-co ... A12%7C39%3A1%7C240%3A1318

Quote:

My only comments: $600 to reproduce the hoses? $380 in parts and an hour's labor will do these hoses. And $199 shipping sounds like the shipping charges on a TV infomercial.

Looks nice, not sure we're you'd fit the tank.

The buggaboo with later engines is whether you have a 1pc rear main seal or not. LTX engines don't have a choice.

Getting the drive to fit is the next problem.

Mark made custom engine mounts to shift his engine back 1/4in.