A518catcher 0 Report post Posted August 12, 2005 Any one of you gurus know if a 320 engine is the same as the 520. ive got a 520ia 1989 and need another engine to fit. only replies that know for sure please. Quote Share this post Link to post Share on other sites
E30stz 0 Report post Posted August 12, 2005 (edited) Good question, hrmm... they're both Model M20 engines and boast the same horsepower. Might be an idea to pm BrentHartge535 Edited August 12, 2005 by E30stz Quote Share this post Link to post Share on other sites
Gus 5 Report post Posted August 12, 2005 as long as they both m20's (looks the same) they are. not sure bout oil sump positioning, but thats easy to swap over why not whack a 2.5 in while your there..its the same swap Quote Share this post Link to post Share on other sites
BM WORLD 1262 Report post Posted August 13, 2005 i have a 89 320i engine , thats the same as 89 520i . it has the motronic ecu system , you might need to change the sump. call me 021433600 or 2997389 Quote Share this post Link to post Share on other sites
bem-on 0 Report post Posted August 13, 2005 (edited) this may not help but im about to try and put a 520i box and engine into a 320i. engine specs 520i (1988-96) 320i (1986-92) cylinders: 6 :6 bore x stroke: 80 x 66mm : 80 x 66mm capacity: 1,991cc : 1990cc timing:(520i) single-overhead camshaft, VANOS variable valve timing from september 1992 (320i) belt-driven single-overhead camshaft compression ratio: 8.8:1 : 8.8:1 fuel injection:(520i) Bosch Motronic, Lambda probe and catalytic converter (320i) Bosch Motronic, Lambda probe and catalytic converter max power: 150bhp at 5,900rpm : 129bhp at 6000rpm max torque: 137lb ft at 4,300rpm :118lb ft at 4300rpm most of which you all ready knew thought id post anyway. hope it helps Edited August 13, 2005 by bem-on Quote Share this post Link to post Share on other sites
A518catcher 0 Report post Posted August 15, 2005 THANKS CHAPS Brent ill get back to you ..Aucklands a long way for a thing that weighs that much but ill ring ya.. GUS : Whats the deal with the injection if i score a 2.5 litre.. do i need to change my ECU/ Air flow meter or does it just adjust it self as the engines sucking more air for the bigger cylinders. i think id rather get a wreaked complete 525/535 so i dont end up paying heaps for small components after the transplant. Thanks guys Great help. :thumb: Quote Share this post Link to post Share on other sites
Gus 5 Report post Posted August 15, 2005 ideally yes...but you can get away with it for a bit until you get em...they the same units., but dont flow as well. the ecu is only a different chip. i think i just happen to have all the bits you would need if your keen...PM me if you are Quote Share this post Link to post Share on other sites
