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Search found 6 matches

by Efonlupt
Wed Apr 13, 2022 11:57 am
Forum: BMW in Racing
Topic: 1972 R75/5 racer mod ,
Replies: 6
Views: 14031

Re: 1972 R75/5 racer mod ,

Thanks Eric, You are right , the variables are numerous , so many elements and yes build up and fine tune as we go . Elevation , gas , materials , oil flow etc . I have built a few very special engines with fantastic results and have over built with catastrophic results . The Gnosis is half the fun ...
by Efonlupt
Tue Apr 12, 2022 12:00 pm
Forum: BMW in Racing
Topic: 1972 R75/5 racer mod ,
Replies: 6
Views: 14031

Re: 1972 R75/5 racer mod ,

Thanks Eric , I want to lighten the flywheel , do you know what grams can be taken off ? Or a size pattern I can machine off ? We usually run the bringwhatyoubrung , I have raced in the 500cc vintage class . As for time , I figure within 6 months . Do you know if I use the dyna III electronic igniti...
by Efonlupt
Thu Apr 07, 2022 3:39 am
Forum: BMW in Racing
Topic: 1972 R75/5 racer mod ,
Replies: 6
Views: 14031

Re: 1972 R75/5 racer mod ,

Hi , that is a cool mod on that frame . I already made a new rear end loop for my frame and new seat pan . My frame and engine match and have a clean title . Your frame is tempting …….
by Efonlupt
Mon Apr 04, 2022 9:46 pm
Forum: BMW in Racing
Topic: 1972 R75/5 racer mod ,
Replies: 6
Views: 14031

1972 R75/5 racer mod ,

My apologies if I am in the wrong thread. But here goes I have been building European bikes for 15 years, vintage focus . I have raced at Bonneville and Maxton several times . Anyways I have never owned BMW’s before but after a nasty divorce , I lost my shop and inventory. Some of my racing buddies ...
by Efonlupt
Mon Apr 04, 2022 9:04 pm
Forum: Classic (1970-25 years ago) Motorcycles
Topic: New Member- old builder / racer
Replies: 2
Views: 884

New Member- old builder / racer

Hello and thank you for the opportunity to be part of this forum. I have been riding for 34 years , I owned a European custom vintage motorcycle shop in North Carolina for about 10 years . I machined , milled , fabricated , welded , painted …well the works ….I have raced a Bonneville and Maxton twic...