B max4 running as 2wd

toooldskool · #1 09-05-2016

Any info on converting Bmax4 to a 2wd. E.g hybrid chassis or front end.

rcpower · #2 10-05-2016

just remove the front bones to give it a try; you will like it. If you keep it like that you can remove the front center driveshaft as well.

Quote:

Originally Posted by toooldskool

Any info on converting Bmax4 to a 2wd. E.g hybrid chassis or front end.

dikke hond · #3 10-05-2016

You already tried it, rcpower?

MHeadling · #4 10-05-2016

There is this one I have seen:

http://www.oople.com/forums/showthread.php?t=174981

There is also another thread on here of another conversion that looked good with some 3d printed parts etc, looked nice

rcpower · #5 10-05-2016

yes, a long time ago, it works pretty good ;-) just try it!

Quote:

Originally Posted by dikke hond

You already tried it, rcpower?

dikke hond · #6 10-05-2016

Quote:

Originally Posted by rcpower

yes, a long time ago, it works pretty good ;-) just try it!

Thanks, will def try it. Do you need the weight of the diff in the front? Do you want to share some info?

rcpower · #7 10-05-2016

Yes, the weight of the diff is needed.
I remember I didn't really make a lot of adjustments, I even drove it with the 10k diff oil in the rear. I played a bit with different shock positions in the front I think and a tad lighter front shock oil; the chassis used was the LC chassis with shorty.

Quote:

Originally Posted by dikke hond

Thanks, will def try it. Do you need the weight of the diff in the front? Do you want to share some info?

dikke hond · #8 10-05-2016

Quote:

Originally Posted by rcpower

Yes, the weight of the diff is needed.
I remember I didn't really make a lot of adjustments, I even drove it with the 10k diff oil in the rear. I played a bit with different shock positions in the front I think and a tad lighter front shock oil; the chassis used was the LC chassis with shorty.

Many thanks! Will try it at Orra soon!

toooldskool · #9 10-05-2016

did you keep the anti- roll bars?

rcpower · #10 10-05-2016

I ditched at least the front anti roll bar.

Quote:

Originally Posted by toooldskool

did you keep the anti- roll bars?

dikke hond · #11 12-05-2016

Going to try it tomorrow!

toooldskool · #12 12-05-2016

please report back after

dikke hond · #13 13-05-2016

Well that was a interesting day! The first few laps with the Bmax4 felt quite good. I used the 4wd cut staggers but it gave to much grip. Switched to 2wd lp staggers and it was much better.
Didn't used the diff in front for extra weight.
No swaybar in front but i used the 1.8 in rear (didn't have thinner). 1.8 was to thick for 2wd.
Diff rear had 10k, next time i will try 7, 5 and 15.
550 cst black yatabe spring front (next time 500 cst)
450 cst green yatabe spring rear (next time a bit harder spring, yatabe orange)

The car is not as fast as the YZ2 (switched back to back today) but the bmax4 has potential and it's fun to drive! Can't wait for next time!

dikke hond · #14 15-05-2016

Tooldskool, are you going to try it also?

dikke hond · #15 08-07-2016

Sunday testday!

Just got back after some more testing.
Changed the rear rollbar to 1.4, which worked out great icw 5k diff oil.
Shock oil was the same because it was a hot day...
I changed the rear spring to Yatabe Orange, also much better.
I added more kickup but didn't work out for me.
Still looking for some more steering. Next time I will try YZ4 front arms and knuckles.

Overall quite happy with the improvements. Car was easy to drive, planted on high grip astro.