56 replies to this topic

[ls2lxhatch]

 
Could work ?
http://www.autokraft.org/products/
 
Where can the mast pan be bought from ?

 
 
The Autocraft looks like it will fit. Very similar dimensions to the Moroso 20140.
 

 
 
I bought my Mast oil pan direct from Mast Motorsports. It may be cheaper to ship to MyUS and then ship to Australia from there. I was quoted $450 to ship direct from Mast Motorsports. I had mine shipped to MYUS from Mast Motorsports for $25 then MYUS to Australia cost around $200. If you want to buy locally then SQP is a Mast distributor.

Edited by ls2lxhatch, 11 November 2013 - 03:48 AM.

[ls2lxhatch]

LXSS350, on 11 Nov 2013 - 02:05, said:

Mother of god what where they charging you to lease a 747 and a crew to fly it over first class.

 

American Powertrain air freighted a New T56 Magnum, Billet CNC Flyweel, Full Clutch kit and a few little bits all door to door for $500 in 5 days. Last time I checked  a sump pan is much smaller and far lighter. I have delt with Jason from Mast on some vette bits but I don't remember the freight being that sort of crazy. They do have some good bits and know their way around the vette's.

 

I have dealt with a few companies based in Texas where the freight prices have been over the top.

 

It seems that freight out of Texas can be expensive if the company you are dealing with does not do enough international freight to get a good rate. That is where getting them to send to send to a freight forwarder like MYUS can be cost effective.

[ls2lxhatch]

I don't think anyone has a fitted a Mast sump yet so there is no guarantee it will fit. It looks like it should fit but you don't know for sure until you try.

Hopefully I will get time to try mine on the weekend, however I been saying that for months now.

[Oversteer]

I think for the price of these aftermarket sumps(with remote filters, stupid postage costs etc) its better to modify a $143 GMPP retro sump or even a std ls rear sump !

 

Even with getting the sump professionally welded up(Max $200) your way in front on cost, and functionality keeping the simple stock oil filter location etc !

 

My GMPP sump cost me ~$180AUD delivered(came via sea container with crate engine) ... welding rods, gas 5mm alloy plate ~$30.

 

Haven`t made it fit yet though I guess so there may be extra cost in frustration, burns, skinned knuckles etc to come !

[ls2lxhatch]

There are two problems with modifying a cast aluminium sump.

Some cast sumps can be difficult to weld without leaks due to impurities in the cast aluminium.
A welded up cast sump will always look a bit average.

[ls2lxhatch]

I test fitted the Mast Motorsports oil pan today.

 

This is the Mast Motorsports side by side with the Moroso 20140. The first piece of aluminium at the second hole from the front is in around the same position as the steering rack. As you can see the Mast oil pan is slightly shallower than the Moroso 20140 at the steering rack. The Mast sump area is slightly further back compared to the Moroso 20140 and around 10 mm shallower. The only place where the Mast is deeper than the Moroso 20140 is between the second bolt hole and the sump area. At the start of the sump area the Mast is around 8 mm deeper than the Moroso 20140. The Torana k-frame drops away in this area so the extra 8 mm is not a problem.

 

 

 

 

 

 

Edited by ls2lxhatch, 01 December 2013 - 09:39 PM.

[Oversteer]

So the mast sump seems like the go.... but the postage cost are retarded even with a pack and send service ..,...

 

If there is enough interest I could get a pallet shipped for ~$500.... so cost us-au for a sump would be well under $50 ! I would hope also that mast would do a decent price for 15+ units.

 

Who wants one ?

 

In the mean time I`m still going to cut and weld my $180 GMPP sump, the issues of bad welding thru contamination are evident on used engine parts with oil and coolant contamination. If you know how to weld and use a good high current TIG its not a problem....I have had success and failure welding all manner of alloy engine parts, but the professional welder I use Always gets it right..knows what he's doing !

 

As for looks....wtf is going to look at the sump much !?... and again professional welding looks sweet and I could hand it to the polishers a few doors up and have it mirror finish with no evidence of welds for $100. 

[355LX]

Thread dig. Andy in your opinion, how does the internal design of the Mast pan look as far as oil control? I have been tossing up between the Mast and the Autokraft for a long time now. The Autokraft appeals as it has the trap doors etc, but the Mast appeals because it is a cast pan and I recall reading that the pan forms part of the structural integrity of the engine block.

 

Thoughts?

[ls2lxhatch]

The structural oil pan is often misunderstood. What GM said is that the bolting the transmission to the oil pan increases the structural integrity of the powertrain. I guess it would also add a little to the strength of the block however if you were serious about strengthening the block then your would probably fit a steel girdle on the mains not a cast aluminium oil pan. The deeper skirt on the LS block with cross bolt mains already increases the strength of the bottom end compared to a SBC block.

 

This quote is discussing the V6 oil pan but I read a similar quote for the LS1 although I can't find it at the momement.

 

A cast aluminum oil pan is stiffened to improve powertrain rigidity and reduce vehicle vibration.

 

http://gmauthority.c...gm-engines/lfx/

 

 

It is also mentioned here.

http://www.hotrodlan...nstallation.htm

 

 

The alignment of the structural oil pan is critical. The rear bolt hole locations of the oil pan provide mounting points for the transmission housing. To ensure the rigidity of the powertrain and correct transmission alignment, it is important that the rear of the block and the rear of the oil pan are flush

 

 

The older transmissions are only bolted to the block so the bolts cover a little over 180°. The LS transmissions are bolted to the block and the oil pan giving 360°. The drivetrain is less likely to flex with 360° bolts than it is with 180° bolts. If you are not running a LS transmission then it doesn't matter what pan you use. If you are running a LS transmission with a aftermarket pan then you are no worse off than someone running a SBC. You could run a brace from the block to the bottom transmission holes if you wanted additional strength.

 

 

 

 

 

 

 

There is baffling in the Mast oil pan but no trap doors. From memory the baffling is similar to the Camaro pan. I can take a picture tonight. I plan to run an Accusump as insurance against oil surge and to prime the engine before starting.

Edited by ls2lxhatch, 13 February 2014 - 03:19 PM.

[ls2lxhatch]

Mast Baffles

[ls2lxhatch]

Capacity is around 4.3L plus filter K&N HP-1007 dia 76 mm height 95 mm.

 

I set my dipstick 4 mm higher than it is in this photo to get 4.3L. The should put the oil level level with the bottom of the crank scraper.

 

[355LX]

Andy thanks for the great info again! Only just saw this. Thinking when the time comes I'll almost be tossing a coin over the Autokraft and the Mast pans.

[ls2lxhatch]

The Autokraft does have the advantage that it holds 5.2L vs the Mast 4.3L although I think 4.3L will be fine on a street car.