My engine build for the Baur project

[winfred]

me? this is the only other picture i have of the pistons, kind of a pain in the ass to take a bath in the middle of a build so the camera doesn't get oily

this is post balancing, i removed material with a large drill bit in several places so the holes wouldn't get deep, there was 2-2.5 grams across the piston set and i took them to 1/10 of a gram to one another

more pic would be nice....

[george graves]

more pic would be nice....

[winfred]

single and nothing was done to the block (it was a 88k super E mile block i stashed a few years ago for a future project that we sold the head off of and i greased it down good to keep rust at bay) i had to nick the skirts on the pistons slightly as they didn't bob the crank quite enough, 3.400" should be enough to clear the flat bottom short skirt I pistons, my crank wound up right at 3.500" and it needed maybe a 1-2mm nick on each corner which wasn't a big deal as i was going to balance them anyway

i dug around and found a pic of a nick'd piston

Win, I checked out your build, did you use a single vanos m52 crank or double? Looks like double, but I'm wondering if you had to machine some of the block.

[Ruffian]

Win, I checked out your build, did you use a single vanos m52 crank or double? Looks like double, but I'm wondering if you had to machine some of the block.

[winfred]

if nothing else someone scored some hella conversions for the hideous square light kit

i can give you some tips from when i built my 2.8 stroker, i am guessing the b20 rods are 130mm like a b27? if so i used short flat skirt I b25 pistons to help clear the crankshaft counterweights but even so i had to get the weights bobbed on the crank, they cut mine down to 3.500" above the rod journal, this was a waffleswaffleswaffleswaffles hair from perfect and i had to slightly notch the piston skirts, i think 3.400" would be about perfect, i made a 2nd spacer for the front of the crank when i made the one i am using but it may be a couple thousandths thinner then ideal (worst case the harmonic balancer may rub the crank seal housing, mine is very close but i can't remember which one was thinner the one i used or the other) you make the spacer from the hub that is currently on the m52 crank, i used a lathe to cut it down and keep the cut edge square as that is pretty much a leak point if it doesn't seat on the crank or cam belt drive, you need to knock a little off the back side of the spacer that goes under the crank bolt so it doesn't bottom out on the front of the crank where it fits inside of the hub, get a ohaus crack scale off ebay (mine was under 30 delivered iirc) and take several readings of the rods and pistons to get a average (it may be off a 1/10 or so per weigh, mark the scale so all parts hit the same position, i knocked the weight off the inside of the piston domes and off the rod caps, didn't bother to weigh the rods end for end as the rest of the rod is small and no easy way to get a acurate reading) and balance the pistons to the lightest one and do the same for the rods, my rods were around 4 grams off across the set and the pistons were around 2 grams off

heres my build thread for some pics http://www.r3vlimited.com/board/showthread.php?t=109847

[bigjake]

i dig it

[CorvallisBMW]

I like the lights, kinda ties in with the Baur theme. All sorts of oddities.

[Farbin Kaiber]

I like the lights, kinda ties in with the Baur theme. All sorts of oddities.

[alpinaclone]

I love the car, and the motor will be strait :pimp:


But loose the lights, it looks way too much like:

I don't understand why they went from making some of the most beautiful cars in the world to that. At least they realized their mistake.

[CorvallisBMW]

I love the car, and the motor will be strait :pimp:


But loose the lights, it looks way too much like:

[Ruffian]

The square headlights are nothing...check out the sweet grill that comes with..



I'm still undecided on the grill and lights.

[e30evolution]

I hope you keep the square lights.... They make it look exotic

[SamE30e]

Please, ditch the headlights.

[CntrlcoastE30's]

Had an E21 Baur with those same retangular headlights. It was an 80's thing. Was the first of many things to bring that one back to original.

[FredK]

Yes, those are rectangular headlights.

:pimp: