MG Motorsports Forum

Welcome! Sign In Register

Please Sign In or Register to Search

External wet sump oil pump

Posted by hoffman900

Want to advertise your business in this space? Click here for more information!

Topic List Forum List Newer Older Start New Topic

External wet sump oil pump #1
hoffman900 Bob Adams South Jersey, USA 1978 Yamaha MC TT500 "Flat Tracker" 1990 Mazda Miata NA	Posted: June 01, 2012 09:17AM Registered: 4 years ago Posts: 411

I know there are a few MGB racers running these. Could anyone share details on set up? How is the oil pan is configured,
pump size, etc. ?

How about distributor gears?

Any information would be appreciated.

Edited 2 time(s). Last edit at 06/01/2012 09:49AM by hoffman900.

Sponsored Links. You can hide this ad & support this site by upgrading to a Gold Membership ~ click here for more info.

Reply Quote

Re: External wet sump oil pump #2
fast-MG.com Dave Headley Cortez, 4 corners, Colorado, USA	Posted: June 02, 2012 09:02AM Registered: 4 years ago Posts: 3,241

Hey Bob. I've done a number of external pump wet sump MGBs over the years. I've always used the Pace pump from Fast Forward. I think Peterson also makes a viable pump.

The pan is baffled like a wet sump pan. I bring a suction tube in from the side and use an inline screen to protect the pump. I also put an "umbrella" over the end of the tube to discourage the sucking of aerated oil from directly over the tube opening.

I also turn the center cam bearing so it doesn't feed oil to the oil galley which pressures the OE pump spindle since that's now just an open hole and will leak a lot of oil. Or you can seal a round plug into the pump spindle hole to seal it off.

One issue with the Pace pump is it's tendency to stick the regulator piston if it sees any small debris. It's designed to see filtered oil from a dry sump tank, and instead is seeing unfiltered oil from the pan. The next one of these I do I'll take a hard look at using the MGB in-block regulator so I can regulate filtered oil. I think this is doable.

I drive the pump at 50% crank RPM via a second belt off the water pump. A V-belt works well for this since you don't need a "timing function" that a Gilmer belt provides and V-belts are less sensitive to alignment of the pulleys.

How to advertise on this website

Fast-MG.com Dave Headley, dba FAB-TEK offers full service race car parts and preperation for MGB & MGA race cars, SCCA and Vintage. Dave is a mechanical engineer and has raced MGBs since 1963.

Reply Quote

Re: External wet sump oil pump #3
hoffman900 Bob Adams South Jersey, USA 1978 Yamaha MC TT500 "Flat Tracker" 1990 Mazda Miata NA	Posted: June 02, 2012 11:29AM Registered: 4 years ago Posts: 411

Thanks, Dave!

The information is very much appreciated.

Reply Quote

Topic List Forum List Newer Older Start New Topic

RSS

Sponsored Links. You can hide this ad & support this site by upgrading to a Gold Membership ~ click here for more info.

Add your reply here, or post your own questions!

Members Sign In if you've already registered, or
Register a New Account
Registration is free and takes less than a minute

MGB & GT · MG Midget · Buy, Sell & Trade · Vendor & Group Buy · MG Engine Swaps · Original MG · MGA · MGC · MG Magnette · 1100 & 1300 · T-Series & Prewar · Modern MGs · MG Motorsports · MG-2013 Event · Member Meetup · Other Vehicles · Off Topic · Clubs

Having trouble posting or changing forum settings?
Check the Forum Help File (FAQ) or contact the webmaster.
View the archived version of this thread.
Built using Phorum Open Source Software

The MG Experience

www.mgexp.com

MG Motorsports Forum

External wet sump oil pump

Add your reply here, or post your own questions!Members Sign In if you've already registered, orRegister a New AccountRegistration is free and takes less than a minute

Join Our Club

MGExp Menu

—

Adjust Text Size

More to Explore

Add your reply here, or post your own questions!

Members Sign In if you've already registered, or
Register a New Account
Registration is free and takes less than a minute