b maxx front hub mod

[blitzboy]

hi all been playing about a bit this weekend at worksop and tested bx front hubs on the b max , worked a treat ,, at work sop the car tends to understerr but when i changed to the bx front hubs it totally transformed the car , firstly the steering travel had increased due to the bx hubs being thinner and the bx hub seems to have more adjustment due to two holes for height on the set up ,, ironically all i did was swap hubs and no initial modification was needed ,, ie no dremmeling cutting any thing at all ,, so if you struggling for steering try this out ,, im sure yardy might shed some light on this if he s tried it

also prt number is bx 413 10 guys ,,,

[blitzboy]

hi all just had a bit more of a play about on the bx front hubs as when i was running at the weekeend i put the bx hubs on in the upper position for the champ pack set up thinking that it would n t work in the lower position ,,, mmm now i ve looked at tryed to change it to see if it would work in the lower postion and surprize surprize the b max steering arms fit on the bx hubs in the upper and the lower postions sweeeeeeeeeeeeeett ,, so this means you can have the hub and the arm lower on the hub and lower on the steering arm or vice versa and so on with no modification to it at all and no the drive shaft dont foul anything either more playong time me think is needed with this ,,,

my next chalange is the slipper assembly as to me and one or two others it works but its not easy to adjust at the best of time s ,, at the present i ve got more thread lock on it than i can caree to mention ,, yes its not comingloose but there s room to change it and get a grub screw in there i think

[blitzboy]

Attachment 11101

Attachment 11102

Attachment 11103

Attachment 11104

all fitted and as you can see there s loads of adjustment too

[Oxygen]

Cheers for that! Good knowledge!
Just in the process of building mine and will be useful having some BX bits in the box to play about with!

[blitzboy]

i ve also found out about the rear hubs too and asked darren about them bm415 ro ,,, bart has been playing about with these over the sea and says they re worth a play about with too ,, 2mm onb top of the rear hub , 1mm to kill any understeer too ,,,,

[Kifogrande]

Hey Blitz, can you measure the shocks for me mate? Squashed and unsquashed

[blitzboy]

thier losi shocks off my x6 buddy set up is on the site already but ill let you know mate cheers g ,, i think it was 20mm front and 23 mm rear on the shaft if that helps

[Kifogrande]

No worries, I just fancied trying the Bmax big bores on my b44, cheers though!

[blitzboy]

oh right not got the b max big bores buddy sorry ,, yardy has so might be worth pming him buddy

[Kifogrande]

B44 is running sweet as anyway! If it aint broke and all that........... They just look sweeeeeet!

[blitzboy]

true but i prefer losi any day mate

[discostu]

are they bmax hubs and bx caster blocks it looks to me the hubs sit wonky in the caster blocks ie the top looks to be further in than the bottom. or is it just your pics

how have you not got enough steering ive limited my steering to give less lock as it pivots so well have yoiu tried the yokomo shocks?

[blitzboy]

hi mate yer they are bx caster blocks and b max steering hubs and this was what i tryed for worksop on cork floor buddy ,

[discostu]

hey g

i just wanna clarifie some thing with your mod was the reason you fitted the bx hubs to get more off power steering?

[blitzboy]

yes sort off just found it to be more posative for me on corner entry really buddy ,, some may say that the rear alloy hubs will do the same thing but i ve yet to try them

[discostu]

thats what i thought you were going to say the bx caster blocks are 10deg caster the b max are 13deg as far as im aware which would give you a little more steering into and through the corner. i have the b max rear hubs on mine and to be fair the car feels the same as with the plastic hubs but it gives you more adjustment.

stu

[Yardeeee]

This is not a mod I have tried, however I do have a pair of BX caster blocks and my dad has taken a look at what the effects may be of running them.

Graham: Not disputing anything you have said, if it worked for you then that is fine, like I say I haven't tried it, but I'm not sure it has necessarily changed the handling for the reasons you have stated. To fit the BX block, because of the way they are drilled, you have either lengthened your front link, or moved it over, by moving to the outer hole on the tower and fitting it to the bx block on the outside- I think this may be the reason for your handling benefit, and not so much because of any extra travel or caster alteration, more a roll centre change?

Discostu: we've done some measurements on the caster blocks and the actual blocks, both BMAX and BX appear to be 10deg. When you say that the BMAX has 13deg. are you referring to it having 13 deg. in total, taking into account the inboard kick up also? We personally don't think that fitting the BX caster block alters caster at all...

In reference to the rear hubs, geometry wise the alloy rear hubs are IDENTICAL to the plastic ones, the benefit is that they have a vertical ball stud so you can change link angle. If you run 2mm under the ball stud as provided with the hubs, you get the EXACT same link angle as with the plastic hubs, however you now have the option to go up and down. I have tried both 1mm under, and 3mm under but 2mm under seems the best option, for me anyway.

Tom

[discostu]

cool tom i was under the impression they were 13deg i cant rember where i read it but if you have measered them thats cool yokomo are a little vague when it comes to the b max.

stu

[CODMAN]

Indeed. I find this forum, and feedback friom racers like Tom to invaluable. .... Hmmm.. I wonder how I could let Yokomo know about my appreciation of this... Maybe a little e.mail...

Cheers!

Originally Posted by discostu

yokomo are a little vague when it comes to the b max.

stu