Pics of sleeved 4b11t block

[Kracka]

I wonder if a bunch of typical evoM tards are going to jump on these engines and make a screaming 400hp.

I bet the stock block can do 600hp at least.
X guys don't seem to be as retarded as the typical EvoM VIII/IX owners. They remind me more of the timid S2k owners where doing a few bolt-ons and a tune is huge deal.

[Speedfreak]

X guys don't seem to be as retarded as the typical EvoM VIII/IX owners. They remind me more of the timid S2k owners where doing a few bolt-ons and a tune is huge deal.

Sounds like the infancy of most new platforms.. Turbo S2k's are much more common now.

[iceminion]

Are those steel mains on a aluminum block? WTF?

[scheides]

More....

The below is from our shop manager and engine builder Tim Salefski on some exciting new developments in AMS 4b11 Engine program:


Using the recently released sleeved block I have gathered the parts needed to continue the build. I am straying away from the standard 2.0 4B11 specs and decided to do some experimenting with some undisclosed strokes and bores. Here are some pics highlighting the second part of the build. ENJOY

http://www.amsteam.net/files/675_q1ai9/AMSmitsubishilancerevolutionx4b11enginebuild01.jpg
Here we are setting the piston ring end gap

http://www.amsteam.net/files/676_edcf1/AMSmitsubishilancerevolutionx4b11enginebuild02.jpg
This is the cleaned block awaiting the crank. Note the AMS main studs.

http://www.amsteam.net/files/677_w5kfm/AMSmitsubishilancerevolutionx4b11enginebuild03.jpg
The crank sensor reluctor wheel is installed on the crank and the bolts are loctited and staked so they don't come loose. Now we can do final cleaning on the crank. The crank is measured as well as the id of the main journals with the bearings installed in order to verify proper oil clearance. Then the mains are plastigauged to verify previously measured clearances.

http://www.amsteam.net/files/679_sogaa/AMSmitsubishilancerevolutionx4b11enginebuild05.jpg
Once the crank is torqued down the end play is measured to verify the proper thrust.

http://www.amsteam.net/files/680_kcncb/AMSmitsubishilancerevolutionx4b11enginebuild06.jpg
Here is our custom designed aluminum rod manufactured by BME. Aluminum rods were made to speed up the entire testing process. They are much faster to make compared to steel rods which typically take 2-3 times as long for a one off set. The piston is also a custom designed Ross piston. It utilizes AMS spec pins, ring packs, and special machining processes on the bottom side to help reduce weight.

http://www.amsteam.net/files/681_psgie/AMSmitsubishilancerevolutionx4b11enginebuild07.jpg
The first piston is in!! Everything looks good it looks like I did pretty well with the math. I wont know yet but it looks like the piston is sitting right where I wanted it to compared to the deck surface. I will use a dial indicator to measure this height a little later.

http://www.amsteam.net/files/682_tcr22/AMSmitsubishilancerevolutionx4b11enginebuild08.jpg
Here the second piston is being installed.

http://www.amsteam.net/files/683_ccwku/AMSmitsubishilancerevolutionx4b11enginebuild09.jpg
All of the pistons are in and clearances have been verified.

http://www.amsteam.net/files/684_uh6iy/AMSmitsubishilancerevolutionx4b11enginebuild10.jpg
This is the second half of the block. It is being installed and checked to make sure the crank or rods do not make contact with it. Everything look good!!

http://www.amsteam.net/files/685_dlknt/AMSmitsubishilancerevolutionx4b11enginebuild11.jpg
http://www.amsteam.net/files/686_gooez/AMSmitsubishilancerevolutionx4b11enginebuild12.jpg
http://www.amsteam.net/files/672_j6q2i/AMSmitsubishilancerevolutionx4b11enginebuild13.jpg
Here are a few shots of the block with the pistons installed and some of the accessories installed. Notice the lack of timing belt. The 4b11 utilizes a timing chain! Notice the well engineered oil squirter that helps lubricate the chain.

http://www.amsteam.net/files/673_y7ed1/AMSmitsubishilancerevolutionx4b11enginebuild14.jpg
To build the ultimate motor we decided to go ahead with development of bigger head studs. We are going to see how this works compared to o-ringing like we've done in the past to prevent blown head gaskets. We were able to utilize 13mm ARP studs. Here they are installed in the head.
http://www.amsteam.net/files/674_8ynpg/AMSmitsubishilancerevolutionx4b11enginebuild15.jpg
Note the size difference between the OEM studs and the 13mm studs!!


Please stay tuned I will be addressing the top end of the motor in the near future.

[Kevin 1G Drummer]

Looks pretty nice!

[niterydr]

That looks like a serious engine.

[Speedfreak]

I just don't like how the sleeves aren't supported on the one side. Otherwise, nice build.

[Super Bleeder!!]

I just don't like how the sleeves aren't supported on the one side. Otherwise, nice build.

good eye, i didnt even notice that. Wonder why they designed it like that.

[Shane@DBPerformance]

Maybe they are all supported halfway down the sleeve where it matters.