3-Series (E21, E30)Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.
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well i guess this isnt really a is it true question but i need to know the main differences about the e30 325e and the 325i/is. I know they look the same... but is it true, that the 325e has a 2.7 litre engine in it? Also is it true that the 325e doesnt rev past 4500 or something? I hear they are full of torque but not top speed is that true? Are they track cars not straight line at all? Not that bmws really are straight line cars well altesat 3 series, but yeah answers to those ?'s along with any other inkfo would be great!
yes your right, the e block is a 2.7L made for economy mostly. makes lots of torque. with some work they can make some good power, but off the block the i faster
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The ETA engines are 2.7 liters and 4500 RPM redline - built for grunt - lots of torque. I have an '86 and love it.
The i engine is a 2.5 liter unit with a 6,500 redline (I think) - built for high rev power.
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Originally posted by MrM3@Mar 19 2004, 12:43 AM yes all that is true, but for under $1000 you can convert it to a 2.7i to have a high hp, high tq, 2.7L engine spinning 6800rpm.
how so? I'd be interested in this.
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i know theres a chip for the e's that make it rev to like 5800 or so,,, so which would you say would be better for a 2nd non daily driver fast car an e or i/is?
the e's torque provides very good acceleration - but it only lasts from about 3000 to 4500 RPM's. An ETA that revs freely to 5800 would mean than the strong acceleration would last from 3K to almost 6K. If that were true, i would definitely pick a chipped ETA over a stock 'i'.
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Originally posted by DeathMetal+Mar 19 2004, 12:53 AM--></div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (DeathMetal @ Mar 19 2004, 12:53 AM)</td></tr><tr><td id='QUOTE'> <!--QuoteBegin-MrM3@Mar 19 2004, 12:43 AM yes all that is true, but for under $1000 you can convert it to a 2.7i to have a high hp, high tq, 2.7L engine spinning 6800rpm.
how so? I'd be interested in this. [/b][/quote]
get a 81mm crankshaft from a eta (325e) and use a eta bottom end, the rest is all 325i/is factory parts.
Originally posted by MrM3+Mar 19 2004, 08:29 PM--></div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (MrM3 @ Mar 19 2004, 08:29 PM)</td></tr><tr><td id='QUOTE'>
Quote:
Originally posted by DeathMetal@Mar 19 2004, 12:53 AM <!--QuoteBegin-MrM3
Quote:
@Mar 19 2004, 12:43 AM yes all that is true, but for under $1000 you can convert it to a 2.7i to have a high hp, high tq, 2.7L engine spinning 6800rpm.
how so? I'd be interested in this.
get a 81mm crankshaft from a eta (325e) and use a eta bottom end, the rest is all 325i/is factory parts. [/b][/quote]
hehee - i was looking for somehting more DIY friendly - lol
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Originally posted by Aether@Mar 22 2004, 10:29 PM How do you figure that all costing under $1000?
Would the M20B25 itself be that cheap?
i'm saying if you already had a M20B25, but going the other way around starting with the M20B27 would still be cheap and under 1k if you could do the work yourself, but a full rebuild could go over a g. salvaged m20's can be had for around $300 or less
MrM3, i've researched that conversion its the classic "Eta with i" swap, basically your using the bottom end of the Eta and top end I, meaning the I cams, (because I = double valve springs and rounder cams) and many other stuff in the list. ANd its no where near under $1k, to do the proper power. and if u do it the right way u'll put out about 250hp with the chip. and I haven't looked so much into the differential change but KC ron is very persistent about it. price whise its about ...$2.5k and its not bad to practically double your power. The its a 82mm Overbore... ( maybe 81mm)
Well if you're buying new, remanufactured parts then of course it's going to set you back a couple grand. But not if you can find a still-breathing B25 from something totalled for $300 like he said.
Heres the site with the total parts list and pricing
And its info 2.8i with e bottom crank...
yes ive seen that, but he paid alot more for a turbo diesel crank, a full rebuild, headwork, and a bunch of preventative maintenance items. but yeah your right, when i said $1000 i wasnt thinking of the custom pistons, which would certainly put it over the top.
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