Bmax4iii carpet setups

Dkfream · #1 16-05-2015

Just got a bmax4iii and looking for some advice on setup
What diff oils and shock oils is a good place to start for carpet and astro ?
Cheers

neallewis · #2 16-05-2015

look at these:

http://www.petitrc.com/setup/yokomo/...gzhou20150405/

http://www.petitrc.com/setup/yokomo/...els2015032729/

Also expect a new setup sheet after the EOS tomorrow.

I'm running 600 front shock oil, 400 rear (on astro not carpet).
I did run 20k front and 10k rear, but now moved to 30k front and 20k rear, which is great on astro.

What's the grip level of the carpet?

Adam F · #3 16-05-2015

Similar setup on mine, although you may need to limit the front shocks by quite a bit too..

Mine felt awful initially until I added about 7mm of limiters in the front..

neallewis · #4 16-05-2015

Quote:

Originally Posted by Adam F

Similar setup on mine, although you may need to limit the front shocks by quite a bit too..

Mine felt awful initially until I added about 7mm of limiters in the front..

yup I'm on 5mm maybe 6mm.

corkyjohnson75 · #5 18-05-2015

Quote:

Originally Posted by neallewis

look at these:

http://www.petitrc.com/setup/yokomo/...gzhou20150405/

http://www.petitrc.com/setup/yokomo/...els2015032729/

Also expect a new setup sheet after the EOS tomorrow.

I'm running 600 front shock oil, 400 rear (on astro not carpet).
I did run 20k front and 10k rear, but now moved to 30k front and 20k rear, which is great on astro.

What's the grip level of the carpet?

The carpets not very grippy at all . Would you recommend 30K and 20K for batley ?

neallewis · #6 18-05-2015

Quote:

Originally Posted by corkyjohnson75

The carpets not very grippy at all . Would you recommend 30K and 20K for batley ?

Em not really. ended up with 30k and 10k yesterday, but time was limited for my testing as i was running race control. the astro isn't super grippy, sand is still working it's way out the track.

Allan1875 · #7 18-05-2015

Quote:

Originally Posted by neallewis

yup I'm on 5mm maybe 6mm.

My car wasn't nice at all at Kiddy, but just realised I only had 3mm limiters in which probably explains my random grip roll. Back to my normal 5mm for Telford.

iank55 · #8 19-05-2015

When you say limiters are you using them to reduce droop?

What do you use, is there a Yokomo part or will any shims do?

Cheers
Ian

skyaflake · #9 19-05-2015

You can use any shim as long as it fits. Yes, you use them to reduce droop. I don't run a lot of front droop myself. Rear should have a little, this increases traction off-power. This because your car has more suspension travel before it locks itself.

iank55 · #10 19-05-2015

Cheers. I honestly don't know if there are any on mine as I bought it second hand and have only changed oils and not dismantled the shocks. It does seem to have a lot of drop, particularly on the front, and is very edgy turning in on high grip.

neallewis · #11 19-05-2015

Rear droop limiters are to limit down travel to stop drive shafts popping out. build as per kit, 3 limiters from memory. Using two will result in a popped drive shaft.

Car drives like a pig and wants to roll over without many front limiters. I found five to be optimal.

There is a Yokomo part code for the limit washers. They actually measure less than 1mm (0.85mm), but generally taken as 1mm each on setup sheets.

iank55 · #12 19-05-2015

Cheers Neal,

Ross @ MB got the part number for me earlier - for reference its ZC-S308.

Allan1875 · #13 19-05-2015

Quote:

Originally Posted by neallewis

Rear droop limiters are to limit down travel to stop drive shafts popping out. build as per kit, 3 limiters from memory. Using two will result in a popped drive shaft.

Car drives like a pig and wants to roll over without many front limiters. I found five to be optimal.

There is a Yokomo part code for the limit washers. They actually measure less than 1mm (0.85mm), but generally taken as 1mm each on setup sheets.

For the record, I use actual 1mm shims and not the 0.8 yok ones.

ayske1 · #14 25-10-2015

What is everyone doing to increase low speed steering?
It's probably obvious but I've yet to had a front sway or put the lower shock mounts further in.

Running on medium, high traction, shorty setup.
60/50wt shock oil, 10k diff front and back. Purple, black springs. Mini pins, trimmed two lines on the edges of the tyre.

The fastest guys take this hump diagonally and line up a double and clear it easy. If I take it straight and wide my run up is easy enough to clear the double.

I've added a 6th shock spacer but yet to test. Running 2mm rear sway. slipper is 3mm wide

The quickest guys are also using wide staggers.