e30 2.7 stroker

[Lord DRIFT]

I need information on this. The only information I have found via the seach function,or even google, is vague at best. I seem to find more topics on people asking this question and other replying to do a search; so much that I think people that say "do a search," don't know anything.

So please, for the love of all that is holy: if someone knows please answer. How do you build a 2.7l stroker kit starting with a 325e motor?

Thank you.

[pennpen]

did we go over this like 2 days ago? wasn't you that asked it?

[Lord DRIFT]

did we go over this like 2 days ago? wasn't you that asked it?

I asked this more than two days ago and what I got was a bunch of links. Informative links about the e30 as a whole but I couldn't nail anything down about the stroker. I did get some info from here but it was not definitive. I need to know specifically if I need to change my pistons, will the same timing belt work. Do I only need to only slap on the is head w/intake and tb, wiring harness and computer or is it more involved. What about the AFM? I have not gotten any clear cut answers on these. Would it be better to just turbo the e motor 4500rpm redline is still someting I have not gotten use to.

[FrantiC]

325e block. Get the 885 325i head, intake, injectors, AFM and everything else from a 325i.

Then its pretty much a long stroke 325i motor.. High low end torque and more power in the high rev's with the better flowing 885 head, bigger intake manifold, higher rev limit of 6200rpm, bigger valves etc.


Anything you need to know just ask, I have done the build myself and am very pleased with it..

[moberg12]

what year eta do you have?

[Edev]

I loved my stroked e30 :)

[Lord DRIFT]

325e block. Get the 885 325i head, intake, injectors, AFM and everything else from a 325i.

Then its pretty much a long stroke 325i motor.. High low end torque and more power in the high rev's with the better flowing 885 head, bigger intake manifold, higher rev limit of 6200rpm, bigger valves etc.


Anything you need to know just ask, I have done the build myself and am very pleased with it..

Thank you so much. I will:redspot

Everything else meaning ;computer and harness.


what year eta do you have?

87

[moberg12]

you need 88 super eta pistons

[Lord DRIFT]

you need 88 super eta pistons
:( What about the c rods? Also where is the stamp on the head and why that head?

[mastermatty]

i to am very interested... do you need to change any fuel system parts?

[jcbrown630]

so by that rationale anyone with a "I" motor would be able to yank a 2.7L crank and pistons and replace the I pistons and crank with the ETA. Does this logic work in the real world?

[moberg12]

sigh

[Court M3]

http://www.e30tech.com/forum/showthread.php?t=48288

Start reading

[Lord DRIFT]

http://www.e30tech.com/forum/showthread.php?t=48288

Start reading

That's good shit. Im surprised we dont have our own FAQ stickied.:shifty

[FrantiC]

For you guys, Just best to use is the 88 super ETA bottom end as they have domed pistons which match the 885 head from the 325i. Higher compression.

Fuel system in the car is Fine in the ETA just change over to the 3bar 325i FPR, injectors and fuel rail from a 325i. In mine I am using e36 325i M50 injectors. Direct replacement.

You want the 885 head as it is the best m20 head, found on all 325i e30's. Larger intake and exhaust ports, valves, double valve springs so revs out much higher, better combustion chambers etc.


ETA crank, Rods and Super ETA pistons. You cannot use "I" rods with this setup. "I" rods are 133mm, ETA rods are 130mm.

[GIANUCCI E30]

i HAVE A 86 ETA i CAN'T USE MY BOTTOM END?

[Edev]

i HAVE A 86 ETA i CAN'T USE MY BOTTOM END?

Whoa, no need to yell. ;)

[r0meyrome]

Dont mean to bring this back up butI recently got an 88 super eta 325...from what im reading the lat few days I would just need:

Cam and springs...with the combination of fuel rail, afm, injectors, TB, and DME?

-Rome

[D. Hitchcock]

http://www.e30tech.com/forum/showthread.php?t=48288

Start reading


I'm gonna remember this next time some yuk starts another "e30tech sux" thread.

Yeah, e30tech sucks, that's why bf.c has to link to its threads.

d.hitchcock

[Hodge]

I'm gonna remember this next time some yuk starts another "e30tech sux" thread.

Yeah, e30tech sucks, that's why bf.c has to link to its threads.

d.hitchcock

<3 Doug :buttrock

[D. Hitchcock]

<3 Doug :buttrock


:D

dh

[NickRick]

anyone here ever done a 2.7 stroker ix? I know that the oil pans were different with the IX's to house the front diff. But is the bolt patter the same? just take an oil pan from the ix and slap it on the e block?

Just curious...

[bmwlover0725]

anyone here ever done a 2.7 stroker ix? I know that the oil pans were different with the IX's to house the front diff. But is the bolt patter the same? just take an oil pan from the ix and slap it on the e block?

Just curious...


not sure as I haven't done it, but I'm guessing yes.

[88E30IS]

There is more different with the IX block. Oil pick up works backwards, dipstick in different place, oil pan is different and a few other things that I cant think of right now.

[NickRick]

was thinking about it as a project. But I am still kind of new to mechanic work wouldn't want to bite off more than I can chew. How much does an e block usually run for with crank and pistons in? like 200-300?

BTW is there a haynes manual for a 325ix? If there are differences in how the engine is laid out maybe it was worth printing a few copies? I have not seem to come across one ever.

[88E30IS]

Yes they have one.

[johny]

Dont mean to bring this back up butI recently got an 88 super eta 325...from what im reading the lat few days I would just need:

Cam and springs...with the combination of fuel rail, afm, injectors, TB, and DME?

-Rome

that would work you just need more oil journals in the eta head.

[FrantiC]

You could fit the ETA crank, rods and super ETA pistons or ETA pistons into the IX block...

I cam is 7 journals, SuperETA head would need extra holes drilled for the cam. Just get an I 885 head, already has the double valve springs, I cam etc.

[88E30IS]

I'm torn between IX+turbo, IX+stroker, and the IX+m50 swap. Hmmm

[NickRick]

You could fit the ETA crank, rods and super ETA pistons or ETA pistons into the IX block...

I cam is 7 journals, SuperETA head would need extra holes drilled for the cam. Just get an I 885 head, already has the double valve springs, I cam etc.

The IX block will allow the larger pistons and crank? And the I 885 head is already on the the 325i engine right?

[FrantiC]

Yes. Super ETA and I pistons are the same bore.. And the crank is still an m20 crank, just a longer stroke. So you will need ETA rods with the ETA crank and superETA pistons. Yes already has 885 head.

[Beefkake25]

if I took my 86 eta block, crank,ect.. and put a 885 head and the rest on. What compression would I be looking at? I plan on turbocharging my car and I want the 8.8:1 or less compression. Does anyone know what it ends up at?

[95BMWIC]

http://www.strictlyeta.net/technical/328i_1.html

[digger]

it ends up just under 8.5:1 nominally, there are better ways to do things though its probably less important if adding boost as boost masks all sorts of bad things

[Beefkake25]

it ends up just under 8.5:1 nominally, there are better ways to do things though its probably less important if adding boost as boost masks all sorts of bad things I actually plan on boosting it to death then swap a m52 into it.

[steven13]

Would it be the same if i had a 325i and swapped the e block in since i already have the necessary things already? Like bolt it together plug everything in and good to go?

[digger]

yeah blocks are basically the same mechanically should work ok just keep the electrics and injection, harness etc from the "i"