Over the last couple years the priorities in my life have changed. Had Matrix Garage grown big enough to hire enough employees and leave them to running it while I pursued other things I would have happily taken that route but it has generally stayed just big enough to keep me working overtime. 
I have decided to start focusing my carreer and passions elsewhere and that means that supporting the AW, AE, 4A and related communities has had to be moved much lower on the priority list. I have decided to keep the store up to provide parts that only we offer, or other things that are hard to come by elsewhere. You will notice many big name, readily available products have been taken down and we will continue to do so. It's just not worth our time trying to compete with the big corporations selling at cutthroat prices and it just takes up more of my time. 
I will try to keep providing those parts that we make or that we have developed and sell as a service to the community but understand that now this is something I do in my spare time because I don't want to leave people hanging. 
I try to make shipments and process orders at least twice a week. If you want Amazon next day shipping buy from Amazon. I will do my best to keep order time and customer service at a reasonable level but have some understanding. I am not making money on this and it takes away from my other work and other issues that are very important to me right now. 
I have always wanted to make our designs and other information open source and available to the community but to do so properly would take a lot of time making sure that models and drawings were complete, accurate, or properly described. To go through everything and make sure it was something that I felt comfortable releasing to the community. I would love to find someone who was willing to help me do this. Someone in engineering school or passionate about this to help go through 3D scans, CAD designs, and information to prepare it. If you are interested feel free to email me. 




Oil pump differences 4A-GE vs 7A-FE

We have recently discovered that there are differences in the oil pump port location between the 4A block and the 7A block.
Fortunately Aisin and Toyota oil pump gaskets are cut oval to work with either but some other gaskets are not.

If you use a 7A pump on a 4A block or vice versa the port on the block and the port on the pump will not line up perfectly. They are close enough that they should flow just fine with no issues but on a high performance build or for anyone who wants an optimized build you will want to gasket match port the pump and the block.
Here you can see a comparison of the 7A block and the 4A block. You can see the ports sit on the oposite side of the oval in the Aisin gasket.




And the pumps







To fix this simply gasket match port the block and the oil pump to match the oval gasket.

If you have a generic gasket that does not have the oval you will first have to cut it to the shape of the block and pump.


There are some other differences between the pumps but more pics and details on that will come later.



courtesy of