bravo 35 Report post Posted October 31, 2005 (edited) yeah - too poor to do diff right now - other commitments. I do 109 at 3500rpm in 5th. Edit: which according to Carls spreadsheet I have a 4.44 and since they did make a 4.44 in my build year, looks like I got lumbered with this whore of a diff. Anyone got a 3.91 lying about? Guzzling gas like no tomorrow. project for early in the new year. got some minor but urgent maintenance to do right now, so everything else on hold. Edited October 31, 2005 by bravomikewhiskey Quote Share this post Link to post Share on other sites
bravo 35 Report post Posted October 31, 2005 How much dose a manual gear box wiegh approx? Would it be ok in the boot of an e30? no prob. pick one up by yourself. auto is a 2 person lift to be safe unless you like to pwnyour back to prove a point. Quote Share this post Link to post Share on other sites
Coffee&Doughnut 0 Report post Posted October 31, 2005 Thanks for that, I may have to post pone the conversion until I get a second car next year. But I can slowly amass the parts. in the meantime Quote Share this post Link to post Share on other sites
Coffee&Doughnut 0 Report post Posted November 1, 2005 As far as manual gearbox choices go are there any which would match up better to the lower ratio diffs like if you were stuck with a 4.10 or 4.27 would there be any difference fitting a getrag 240 or 260? GETRAG 240.0.0366.90 225 3.1 240.00460.90 062408 AMS These numbers mean nothing to me. Quote Share this post Link to post Share on other sites
bem-on 0 Report post Posted November 1, 2005 hay Chris good to see you meet your goals of maual before Christmas dude. good schiza :thumb: Quote Share this post Link to post Share on other sites
bravo 35 Report post Posted November 1, 2005 Not sure C&D but mines a 240 and I'm relatively sure I have a 4.44. Drivable, but I really don't like it. My mates think its cool winding it up with such low ratio, but they're not the ones paying the gas bill. Quote Share this post Link to post Share on other sites
SRBMW 6 Report post Posted November 3, 2005 Hey mate I didn't read karls post about ratio's but I'm pretty sure you gota be in 4th gear to work out your diff ratio because 4th is usually 1:1 where as 5th is an over drive.That would mean you gotta ridiculas ratio up back. Quote Share this post Link to post Share on other sites
Coffee&Doughnut 0 Report post Posted November 3, 2005 Any chance a E21 323i manual gear box will fit an E30 without fabrication? Quote Share this post Link to post Share on other sites
bravo 35 Report post Posted November 3, 2005 Sorry C&D don't know for sure, but I think it is doable without too much stress, but ask around a bit more - don't take my word for it. SRBMW - I used Carls spreadsheet - it takes into account what gear you are in and applies the correct ratio for that gear in that box. Quote Share this post Link to post Share on other sites
Guest Andrew Report post Posted November 4, 2005 Any chance a E21 323i manual gear box will fit an E30 without fabrication? as long as you are facelift then probably yes. Quote Share this post Link to post Share on other sites
Coffee&Doughnut 0 Report post Posted November 4, 2005 I got a FL Andrew, Why would it be more likely to fit a FL E30? It is a late model E21 81 -82 Is there any thing I can look out for? Also would the older gearbox be inferior to later E30 one? Quote Share this post Link to post Share on other sites
Gus 5 Report post Posted November 4, 2005 the pre FL motronic (not sure about l jet) uses pickup points for RPM and crank angle on the box housing....facelift doesnt need this as they are elsewhere. so the box can be anything that actually fits all m20 boxes seem to be pretty good. Quote Share this post Link to post Share on other sites
Coffee&Doughnut 0 Report post Posted November 4, 2005 Thanks Gus, I may be able to source some parts that can be put to use then. Quote Share this post Link to post Share on other sites
bmwsparkle 3 Report post Posted November 4, 2005 (not sure about l jet) Ljet dosent have the pick up points, hence why I had trouble since i was chucking a Ljet box into my 5, bein motronic, and what a bitch it was to find a 2nd hand motronic f/w Quote Share this post Link to post Share on other sites
Guest Andrew Report post Posted November 4, 2005 Ljet dosent have the pick up points, hence why I had trouble since i was chucking a Ljet box into my 5, bein motronic, and what a bitch it was to find a 2nd hand motronic f/w it has cutouts in the bell housing - so you could install them - probably be a PITA though. Quote Share this post Link to post Share on other sites
Coffee&Doughnut 0 Report post Posted November 5, 2005 So guys I am starting to get a little lost, what is meant by motronic F/W? E28 basically pre F/L therefore same problem with pick-up points ? Quote Share this post Link to post Share on other sites
Guest Andrew Report post Posted November 5, 2005 So guys I am starting to get a little lost, what is meant by motronic F/W? E28 basically pre F/L therefore same problem with pick-up points ? are you talking about an E28 or your car.If you car is facelfit - any e30 m20 gearbox will work in it. If its pre-facelift - then a pre facelift gearbox needs to go in it. Quote Share this post Link to post Share on other sites
Coffee&Doughnut 0 Report post Posted November 5, 2005 Sorry, I was refering to BMW sparkles 5 series he was talking about. Is it the same situation with the M30 motors and gearbox as far as mating an earlier box with either FL or pre FL model? What I didnt get was what is a Motronic f/w ? Quote Share this post Link to post Share on other sites
