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E30 Subframe and M20 Stroker


Blackwhiteandblue

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Been pretty busy the past few weeks, unfortunately not all on projects. I did manage to get a couple things done though.

 

Engine Updates!!!

I now have the block clearance for the new crankshaft and connecting rods. I have my machine shop turning a custom piece for the crankshaft, so this is probably as far as it gets till that comes back.

Crankshaft sitting in its new resting place. Any one able to guess the crankshaft??! Hint: it is a stock BMW crankshaft.

5a43aa4d36f26_Crankinblock.thumb.jpg.c8b2a0b4c37423c90f157f4836fd86d8.jpg

Here is the clearancing that was needed for the connecting rods and crankshaft. It is a tight fit and I didn't anticipate this much clearancing.5a43ab11f0fe3_Engineblockclearancing.thumb.jpg.f0b718e58e221217a269d2cb538f319f.jpg

Here is the piston at TDC. It fits just proud of the block. I will need to measure the PTV very closely before I order my custom MLS gasket. I will be very impressed if anyone can guess what piston this is. Hint: it is not a BMW piston, but it is a stock piston of some sort.

 5a43ac052a658_Pistonfitment.thumb.jpg.36c900d42774f1afbc2bcd398cd89d9d.jpg

I am not sure if there is anyone well versed in M20s that is lurking on here, but if there is a better way to get this needle bearing for the oil pump gear out of the plug for where the distributor used to go on early M20s please let me know. I have mangled this bearing beyond recognizable with my die grinder, burr, and colorful language.5a43ac4053057_Needbearings2.thumb.jpg.846b1ad08e62edc9457bd5682a0f0bf5.jpg

Here is the one from the block side I took out and the one from the plug (correct terminology?)

5a43ac49ac5d3_Needlebearings.thumb.jpg.6605dfac6f6c7fcb0c90c78020913cf2.jpg

 

E30 Subframe 

Finally got the subframe tacked together and test fit onto the car!!!!! I just need to weld it out and find a good way to mount the sway bar. I have seen people just taking the mounts from the 2002 subframe and welding them on to the E30 frame. I think that is what I will do, but I don't like it since it goes under the subframe. Oh well...

Here is a picture of the subframe before I cut off the end. I ended up cutting the end off the 2002 subframe and using the subframe mounts. I have seen people just relocate the E30 mounts, not sure why anyone would do that. I hate the subframe mounts in the E30s in comparison the the 2002s bolt on type. Bolt them on and go!!! No cursing, and whacking the subframe with a hammer when you have spent all day trying to get the old shit ones out and the new ones in.

5a43b10481e34_e30subframe.thumb.jpg.6f8de45c07f81e347bc2b0579f26a63c.jpg

 

Rant over! I will get some pictures of the finished subframe when I get that done. 

 

 

2 Comments


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I was hoping it wouldn't be the first person to guess that got the crank right... But oh well. At least you didn't guess the pistons. 

 

These are actually a stock piston. Not aftermarket. But good guess!

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