M20 engine build

[e30josh]

Definitely what I assumed... Lower and slower revving does a lot of help to bearings and rings in the long run.

Could also be the fact that the etas weren't driven as sports car until fairly recently, and probably serviced/treated better throughout the life span. In my experience, etas have less cylinder leakage as they age.

Probably the reason why you see more b27s with over 350k

[ck_taft325is]

True story bud, the 2.7i is an awesome upgrade if you plan on boost in the future. Most of the eta bottom ends I've torn down look a lot better than the b25s with the same mileage.

Lower rev's perhaps?

[e30josh]

Pretty sure he's building that 2.7i for boost not NA

True story bud, the 2.7i is an awesome upgrade if you plan on boost in the future. Most of the eta bottom ends I've torn down look a lot better than the b25s with the same mileage.

[delamaize]

if you wanna trade that M50 for my dissambled M20B27 short block, I'm game.
:D

[Killacortes]

Pretty sure he's building that 2.7i for boost not NA

[EN318isPDX]

For a measly 140hp, lost compression and a wasted weekend, I'd rather keep a chipped eta.

Its not horrible but people really overstate the HP of M20s.. I constantly hear they make as much power as a M50NV.. Going from an M20 to a 24v is night and day IMHO

[e30austin]

For a measly 140hp, lost compression and a wasted weekend, I'd rather keep a chipped eta.

[EN318isPDX]

it made 150whp/148tq.

[Andy.B]

Having actually owned and driven a 2.5i, 2.7e, and 2.7i, I will say that the 2.7i is better hands down.

I do not understand all the workbench engineers who love to chime into every 2.7i discussion to slam it. Is it a hp monster? Of course not. Is it better than a 2.7e? Absolutely. Is it the best hp/$ investment you can make in an eta? You betcha.

Throw a cam at it, and you have a strong na engine for very little money invested.

My point is, try not to get wrapped up in chasing what engine option looks best on paper. There are too many variables, and there is always a 'better option' for every upgrade, if only you're willing to spend a few dollars more.

A 2.7i can be done with no special tools in a weekend in your driveway. It will breathe new life into a low revving eta. It will put a smile on your face when you drive it.

[kistler#7]

If you are interested in a boosted m20b27 I am putting mine up for sale once it gets a new cylinder head or resurface

http://www.r3vlimited.com/board/showthread.php?t=338818&page=2&highlight=e30+budget+turbo+build

[Wschnitz]

M50NV 4 lyf rite?*

[EN318isPDX]

chasing NA power is never easy on the pocketbook

M50NV for life right?

[Wschnitz]

chasing NA power is never easy on the pocketbook

hows that 2.8L more then S52 HP NA build going 5toes?

[Plum13sec]

chasing NA power is never easy on the pocketbook

[Wschnitz]

5-8k NA maybe, but more like $4k with a massive turbo.