BMW E30 325e M20B27

[ZerO_CooL]

Felicitari pentru noua achizitie. Cu siguranta o sa iasa ceva tare...

"M20
Straight 6 cylinder SOHC 12V. Baby Six. 1977-1992. 117kg 258lbs
Used in E21 320, E21 320i/6, E28, E30, E34, E21/30 323i, E30 325e and E28 528e
2.0i (129bhp), 2.3i (143bhp), 2.5i (170bhp), 2.7e (125bhp)"
Sursa: www.bimmerforums.com/engine_faq

[ZerO_CooL]

Originally Posted by haristeas51

vara asta va zi o vara a Ursuletilor..

Eu sper sa nu fie singura. Sa avem parte de cat mai multe astfel de veri.

[florin83]

mai incearca si aici.. un forum numai despre turbo pe e30

[ZerO_CooL]

M20B27
The 2.7 L M20B27 was designed for efficiency (thus the e for the Greek letter eta in 325e). It had an 84 mm (3.3 in) bore and with 81 mm (3.2 in) a longer stroke, for a total displacement of 2693 cc. The eta had only four effective camshaft bearings for reduced internal friction, with all seven cast into the head but only four corresponding journals on the cam. The heads were drilled to oil accordingly.

Output was between only 121 hp (up to 1987) and 127 hp (after 1987) but fuel efficiency was fairly good for the period and for that size engine. The low-revving high torque design was resonably well received, but the 325e designation caused it to be compared to the later 325i which had more power and a more exciting sound with its higher range of revs.

It is interesting to note that the eta and the b25 engine, despite a 47 hp disparity in power output, produce a similar amount of torque at about 170 ft·lbf at medium revs. In theory, this should have resulted in similar acceleration in top gear, but due to differences in gearing these were different. The 325/325e(s) used 2.79 and 2.93 rear axle ratios depending on the model year. The 325i sedan used a 3.64 ratio, and 3.91 in the touring and late ix variant. This equates to lower torque at the wheels on eta cars and results in substantially milder acceleration.

All eta engines used Bosch Motronic engine management systems that were calibrated for maximum fuel economy. The result was a very conservative spark advance curve and fuel delivery curve. In addition, the Motronic had a built-in rev limiter that engaged at around 4700 rpm. This very low redline was the result of the four bearing cam, soft valve springs, intake manifold design and camshaft design. Considering the very low overlap and short duration the motor didnt make any real power up high anyway.

For the 1988 model year, the eta cars got a warming over from the factory. This entailed the previously mentioned Bosch Motronic Fuel Injection, a 325i head with the larger 325i valves, ports and revised combustion chambers, special pistons to fit the 2.7 liter stroke with the 2.5 liter head, a dual pipe exhaust system and a 5300 RPM rev limit. Though it only made slightly more power in stock form, it could be easily boosted by bolting on a 325i head with a more aggressive performance camshaft, a complete 325i intake manifold and throttle and plugging in the 325i engine control unit with a performance chip. Depending on which cam and chip is used, that motor can make over 200 **********.

In aftermarket modifications that are inspired by custom versions of Alpina and AC Schnitzer, the long-stroke eta engine block is often combined with a 325i head to a so-called 327i that combines the high low-rev torque of the eta with the top-range power of the 325i.

[X-Ray-Eyes]

Eu am motor de 2.7 ETA pe URSul meu din 1990 , cu chiuloasa de 2.5 ... si 127 Cp ... nu scoate fum , nu a fost kasapita masina ptr ca nu am vazut-o la legale ...
Face ravagii motorul asta daca se umbla putin la el ???
Ca el in mers mixt ( forja + pensie ) consuma 12 in oras ...

[UniculSGM]

Pana acum in Romania, sunt 2 ursi turbo. Unul in CT, motor 2.7eta, si unul in Bucuresti 2.5 IX

[ZerO_CooL]

Si daca nu ma insel, inca unul in Bucuresti, 3.5.

[alecsutu1]

BAV-ul daca despre el e vorba are turbo pus din fabrica

[x-28-TRA]

)))))))))))))
al meu e pus de mine si trage bine adica daca mai aveam 50 de metrii il faceam pe bav dar pe 400 am luat'o

[UniculSGM]

Au incercat niste baieti destepti prin dr taberei sa faca un urs cu motorul de 3.5 turbo,de pe septar, dar a iesit o tiganie, s-a taiat din el mult, etc. Masina nu am vazuto mergand niciodata. Am inteles ca a luato cineva, nu stiu ce s-a intamplat cu ea.

BAV are 2.5 clasic. Te inseli

[alecsutu1]

Da,BAV de care vb eu e un 745i si are motor de 3,5 turbo pus pe masina motorul e turbo din fabrica facut de BMW.

[ZerO_CooL]

Aici era vorba de ursi.

[alecsutu1]

Scuze asa e

[ZerO_CooL]

Originally Posted by B-34-SGM

si unul in Bucuresti 2.5 IX

E vorba de NHT ?

[UniculSGM]

Marele urs grizzly , TURBO, inainte sa se nasca.