NOR-CAL General Chat.

[2mAn]

Im with you, but overall Im a big fan of the M20, kinda wish I wasnt so stubborn and I would have a 2.8L M20 right now, not a 2.8L M52. all good though, Im very happy with my car.

Marco, if you build it right you will be smiling from ear to ear for a long time

[pandaboo911]

The 712 and 678 have the same ratio. The only difference is the part that controls how much assist is given. I believe the 712 offers less steering assist. Otherwise they are the same. There's nothing special about the zhp rack other than its underboosted

[mbonanni]

doh i missed it if that was said. was thinking stock m20b25 numbers.
atleast get the seta pistons 8:1 CR is a bad choice.

Im with you, but overall Im a big fan of the M20, kinda wish I wasnt so stubborn and I would have a 2.8L M20 right now, not a 2.8L M52. all good though, Im very happy with my car.

Marco, if you build it right you will be smiling from ear to ear for a long time

If I build it right? What do you mean? I currently have an '87 eta bottom end, an 885 head, m50 injectors, all new gaskets and seals, and kamotors intake. I will also be running it with m50 injectors, dinan chip, and billy boat catback.

Should I get seta pistons? What other things, and what other work would be involved if I went this route? Rings? Bearings?

[Cabriolet]

you will also need to hone the block. but trust me. it will be a lot lot better. ill let you drive my car soon to feel that a new engine feels like.

[mbonanni]

Just seta pistons and a hone? Or pistons, rings, bearings, and a hone?

[2mAn]

SETA pistons and regular B25 pistons are the same as far as I know. Best way to do is to get all the parts you listed. Done right that motor will outlast the car

[mbonanni]

Shit, I might as well just do a 2.8l. M52 crank, eta 130mm rods, 325i pistons. Would I need to rebuild the head at all? Or could I use stock rockers, springs, etc?

There is someone with an m52 crank for sale on r3v right now. He also has a rebuilt head, but that is $600 vs $70 for a stock head.

[Cabriolet]

SETA pistons and regular B25 pistons are the same as far as I know.

close by not really

http://www.e30tech.com/forum/showthread.php?t=109177

marco, just use an eta crank
M20B27 rods or anything but the eta rods
and seta pistons.

or you get the set from Ireland Engineering/bimmer heads. bringing up the 9.75:1 custom pistons

[mbonanni]

Eric, what are you even saying. Earlier you said to just get seta pistons. Now you're saying don't ise seta pistons with the eta crank.

[BlackbirdM3]

Does anyone happen to know the BMW part number for the M3 fog light relay? (K8) I tried using all the numbers I could see on the relay and came up with nothing.

Thanks,
Will

[kronus]

Is it not a standard Bosch relay?

[Cabriolet]

Eric, what are you even saying. Earlier you said to just get seta pistons. Now you're saying don't ise seta pistons with the eta crank.

eta=seta rods
seta pistons
eta crank
885 b25 head.

[mbonanni]

Now the struggle is finding seta pistons. A quick search on r3v lead to nothing. I'm on my phone though, harder to search. So I like this idea, but why not the 2.8l stroker? M52 cranks are not expensive, I have b25 pistons already, and have access to an 885 head. If I can run stock motronic with a chip, some m50 injectors, and a stock 885 head then I would much rather go this route.

[BlackbirdM3]

Is it not a standard Bosch relay?

I have no idea. I've tried to pick one up from a few places and come up empty handed. I thought it was, but apparently not.

Will

[mbonanni]

What's it look like?