B4 setup sheet for Seaham? Any tips for a 1:10 n00b greatly appreciated!
 

Hi,

I've just bought a second hand B4 from a link on here.
It came as follows:
Speed passion ESC
13.5t Exceed motor
5000 lrp lipo
Big bores from the 4.1
Green springs on rear white on front
Unknown shock oil/pistons
Ali hubs on rear
Ali motor mount

I ran it straight out the box as I didn't get the chance to strip down before racing on Sunday.


Can you advise on a good set up for Seaham?

Advice I've had so far is Schumacher spikes in yellow all round.

I've looked at a few sheets from workshop but was wondering what you guys thought?



I felt like I had no grip on the smooth floor at all!

Any help would be very welcome :)

Cheers,
Mark

Hi Mark,

My B4 was really good at Seaham on the folowing setup:

Rear:
30wt oil
silver springs (I'll bring some for you)
Middle on shock tower
inside on wishbone
Short wheelbase
1 deg anti squat
Long upper link
Std toe in
-2 degreee camber

Front:
40wt oil
Blue springs (I'll bring some you can have)
Middle shock tower
Outer wishbone
-1 camber
std caster
0 deg toe inn
trailing steering blocks (std)

30 grams on top of servo, and a correctly adjusted slipper clutch.

It felt reasonably safe and fast like that. Change to silver spring, 35 wt in front if you need more front end.

Rideheight ... wishbones just below level.

i have 30 grms of weight that your welcome to if needs be
just sticks on with double sided tape

Ah Chris that's fantastic mate! Thanks very much!

I'll get the car setup (other than the springs) ready for the meet on Sunday. Can't wait to try it out with a good setup and some sticky tyres!

Hopefully the bits I've ordered will make it through the snow!

It came with some weights in the box. I'll take a look when I get home and see what they were :)

Cheers :)

Also....

2 mm under front ballstud on front shock tower, 1mm on rear inner ballstud if on B4 rear brace, 0mm if on B4.1 rear brace as it has the little raised section on it.

Chris,
Just a gotcha on the springs you are going to bring, Mark has Big Bores from a B4.1, currently fitted with Green rear and white front.

Based on spring rates that is 2.00 and 3.30, compared with 2.10 and 4.20 for the standard silver/blue setup. Am I right in saying that you can afford to run higher rate on big bores, because they are more progressive?

Looking at that he may want harder front springs to balance with the rear rear grip he has?

Good point Ian, all of my spring references are for small bore shocks, therefore I don't have springs for you to have Mark. Sorry.
Ian is correct, you need some harder front big bore springs, rated , if possible , slightly harder than 4.

You don't need any weight on a B4 at seaham, it drives better without!

They appear to be ~12mm in diameter. Am I correct in assuming these are the B4.1 big bores? Coming into it fresh I am confused as to what is standard or not! :confused:

Yes they are big bores, what colours are the springs, black with green tracer and black with a white tracer or totally green and totally white?

B4 (v1) and B4.1 (v2) shocks are both the same in diameter so the standard springs will work on each other, the only real difference is the way the O-rings seal the shocks.......!!!

Its the NEW B4.2 what has the Big Bore shocks fitted as standard ;)

Totally white on front, totally green on back.
Just done the oils (do NOT like plastic shock caps, they're gonna go soon!)

Their terminology leaves a lot to be desired :rolleyes:


Chris - Could you still bring those springs please mate? :)

Which B4 version do you have like mark ?

I think it started off life as a RTR B4, but has had a mixture of bits added to it whilst the other chap owned it. Have a look at the pictures and tell me what you think:

http://i126.photobucket.com/albums/p...ps8999c387.jpg

http://i126.photobucket.com/albums/p...ps1f92ce2c.jpg

http://i126.photobucket.com/albums/p...ps89976b75.jpg

http://i126.photobucket.com/albums/p...ps8bc3e49b.jpg

http://i126.photobucket.com/albums/p...psf8575374.jpg

I've installed the ali rear hubs and the heatsink motor mount up to now.

Put the setup Chris has given me onto it except for the springs, as the ones you see in the picture are the only ones I have.
The rear end setup was a right dogs dinner before I started!

looks very much like a B4
with the standard/small bores on but the threaded versions

Never seen the white springs before so maybe from another car, but the shocks are definitely the older size shocks and not the big bores.....!!!

They look like tamiya springs.. They should have a small stripe of coloured paint at the end of the coil at one end to determine the spring rate..

Thank for all the input guys. Really appreciate it!

Had a nice package of goodies come in the post from MB:

Bulldog 2.0 body
Front and rear Schumacher Mini spike premounts in yellow
New ball end cups
Rod end dust guards


Only thing I can't seem to get are the upper front FT turnbuckles.

Anyone got a set they want to sell on Sunday. One of mine is banana'd :(
Tried to straighten it out but it's still not right :(

Can't wait to race the thing now :D

parts numbers AS1282 for full set of FT turn buckles or AS1406 for a pair.........or look for any 51mm long turn buckles ;)