kiwi6539 3 Report post Posted March 11, 2010 Hey Im interested in getting a little more power out of my E34 530i M30B30. Where is the best place to start?. Any advice would be great? Cheers Quote Share this post Link to post Share on other sites
melowpuf 19 Report post Posted March 11, 2010 Hey Im interested in getting a little more power out of my E34 530i M30B30. Where is the best place to start?. Any advice would be great? Cheers Replace it with an M30B35 Quote Share this post Link to post Share on other sites
Silver Fox 43 Report post Posted March 11, 2010 (edited) Cam change on mine was worth 20 hp, headers should be worth another 10 to 15. I just had more duration ground into my existing cam, wasn't very costly at all, done by Franklin Cams in Pukekohe. Ooops, mine is a B35, that would be the first change. Edited March 11, 2010 by Silver Fox Quote Share this post Link to post Share on other sites
mr E34 11 Report post Posted March 11, 2010 (edited) The 3ltr is a sweet runner but you are better off following others advice & dropping in a 3.5ltr or just buy a 535is.(not really a 3.5, actual cc is 3430) To give you some idea what gains are locked away in a 'good' M30b35 i gained approx 23hp@wheels running piggyback map system + headers.(supplied by wayney on bimmer) 23 wheel HP equates to approx 27 flywheel HP @ 15% drivetrain loss on a manual 5 speed. Headers only gained approx 5HP@ wheels on stock engine but i'm sure with some internal engine work the headers would come into their own. HP figures quoted are from a Dyno Dynamics dyno in shoot out mode, not fantasy dyno's that exist. Edit, add in tuning thread if interested. http://www.bimmersport.co.nz/forums/index....=16177&st=0 Edited March 11, 2010 by mr E34 Quote Share this post Link to post Share on other sites
BM WORLD 1286 Report post Posted March 11, 2010 depends whats your budget and what you are trying to get out of it . remap or chip or a piggy back system will give 5-10 hp maybe headers about 5hp 3.5 conversion 20-30hp depending on which engine year you choose. realistically a 3.5 engine swap is the best bang for buck engines go for anything from $500 to $1000 depeding on history and who you buy it from costs about 1 to 2 days in labour costs . or sell it and buy a 535is Quote Share this post Link to post Share on other sites
topcat 11 Report post Posted March 11, 2010 all the above,or spend a little more for a completely satisfying result; Quote Share this post Link to post Share on other sites
kiwi6539 3 Report post Posted March 11, 2010 Cheers all for the advice. Will have to sort budget and think what to do. M30b35 sounds like a go. How much for that motor Bm weapon? I like it! Cheers Quote Share this post Link to post Share on other sites
User Name 19 Report post Posted March 12, 2010 Stroke it and increase compression and change the cam Quote Share this post Link to post Share on other sites
topcat 11 Report post Posted March 12, 2010 Cheers all for the advice. Will have to sort budget and think what to do. M30b35 sounds like a go. How much for that motor Bm weapon? I like it! Cheers p'm me and i'll give you some options Quote Share this post Link to post Share on other sites