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-   -   b4 front end grip on carpet (http://www.oople.com/forums/showthread.php?t=16150)

IceMike 19-11-2008 01:09 PM

b4 front end grip on carpet
 
im struggling for front end grip on carpet on my b4, when i turn in it jsut doesnt seem to wanna go. currently 30wt and silvers all round. runnin green shu all round

Southwell 19-11-2008 01:11 PM

Quote:

Originally Posted by IceMike (Post 179922)
runnin green shu all round

Theres your problem.

IceMike 19-11-2008 01:16 PM

no i was havin the problem wit yellows aswell. actually found it got better with the greens

c0sie 19-11-2008 01:21 PM

Im with Southwell on this...yellow Schumachers are the only choice IMO.

How long since you last rebuilt your diff? And is your diff smooth as a smooth thing or as sandy as a sandy thing?

Post your setup here...we should be able to get you turning soon enough.

Southwell 19-11-2008 01:21 PM

Yellow what? Minipins? Are you cutting off rows? I don't see how you can understeer on carpet with minipins, mine always steers like a mofo. Chuck up your full setup.

IceMike 19-11-2008 01:29 PM

this is from memory cos im at work an dont have the car.

front

30wt silvers, standard piston
inside hole on the bottom, middle on the top. camber 1deg
1 washer under the front ballstud


rear

30wt silvers, standard pistons
outside bottom, middle top. camber 1deg
shaved flat on the rear ballstud
wheelbase short, 1deg anti squat.

10.5, standard spur, 23pinion
greens with inside and outside cut off front and rear.

and i always get confused over the whole pins and spikes thing, so ill just say there the nationals and regionals nominated tires

c0sie 19-11-2008 01:34 PM

Try outside on F arm, outside on F hubs too and 30' castor blocks.

Inside on R arm, 2' rear camber

IceMike 19-11-2008 01:40 PM

i think ill rebuild the shocks whilst im at it. i know the diff was done not taht long ago so i know thats still smooth.

millzy 19-11-2008 01:42 PM

On power or off power steering?

Belsten 19-11-2008 01:45 PM

Shumey yellow minipins are the only tyre to run on carpet

I would suggest also checking all the suspension components to make sure it is all free. Could be a bent hinge pin or something in there

Im with Cosie, run outside hole on the front wishbones

Also check to make sure the wishbones are laying level when the car is stationary with the cells in

Medders 19-11-2008 01:50 PM

My B4 used to drift like that for no obvious reason and with what most people would consider a standard set up. Very annoying.

I glued the servo saver up which solved the problem in an instant.

c0sie 19-11-2008 01:51 PM

Dave,

Help me figure out my lack of on-power exit steering/grip issue on Friday please?

Belsten 19-11-2008 01:53 PM

Quote:

Originally Posted by c0sie (Post 179947)
Dave,

Help me figure out my lack of on-power exit steering/grip issue on Friday please?

Your thumbs Chris :woot:

IceMike 19-11-2008 01:56 PM

its more on power steering that i notice it. cos i can always slide it in abit through the corners. anyone ever tried the skandinavian flick into corners wit a buggy??

passy 19-11-2008 01:57 PM

I'm with Medders, check your servo saver. Better still, glue it together and forget about it.

c0sie 19-11-2008 01:58 PM

Mike,

I suffer lack of exit steering/grip which does annoy me...but initial and entry steering/grip are all fine.

I can only put it down to not enough weight over the front.

Dave, I use a pistol ;)

dan_kitty 19-11-2008 02:03 PM

this has happened to me before, it was the servo saver being too loose.

I ended up buying a metal assembly as the threads in the saver kept striping

or just glue it up as sugested

IceMike 19-11-2008 02:07 PM

Ive tried putting some weight over the front end. but it doesnt help much. ive tried putting around 40g in there as far forward as i couldnt. and its not the servo saver guys thats already done.

dan_kitty 19-11-2008 02:11 PM

ah ok then, dont know then:confused:

_sleigh_ 19-11-2008 02:15 PM

Are you running LiPo???

c0sie 19-11-2008 02:16 PM

Do you guys not find that glueing your servo saver fecks your servo??

And what do you glue it with?? Surely CA ould just crack??

dan_kitty 19-11-2008 02:25 PM

nice picture chris, my mrs went around saying "nobjokey" for ages, not realising it was an offensive gay saying.. she thought it was a type of pants. she must have said it numerous times infront of her gay friends.

Southwell 19-11-2008 02:25 PM

I used CA glue, i have managed to snap the actually link off that so make sure you have a spare. Decent servos shouldn't break without a saver. I even ran a cheapish one in the xx4 last year with no breakages.

dan_kitty 19-11-2008 02:27 PM

sorry that was a bit off topic lol

c0sie 19-11-2008 02:27 PM

Might have to remove that AV then, it isnt intended offensivly, maybe I just have a different meaning for the phrase!

Cant be doing with making more enemies lol

dan_kitty 19-11-2008 02:31 PM

lol, didnt mean you were being offensive:) its funny, however now my post makes no sense cos u changed your picture

anyway back on topic:thumbsup:

IceMike 19-11-2008 02:39 PM

Nope not using lipo. good old fashioned cells for me!!

c0sie 19-11-2008 03:30 PM

Mike,

Im presuming that your an experienced driver and therefore not going into corners WAAAAY to fast?

I used to run the following in my B4:

Front
Middle on tower
Outer on arm
Outer on tower ballstud with 1mm spacer
Outer on hub
Steering knuckle in middle
Yellow minipins (outer and inner cut to suit)
Lead in nose
30' caster
0 toe
1' camber

Rear
Outer on tower
Inner on arm
Outer on hub
No ballstud washers
Std antisquat
Std rear toe
2' camber
28g lead where gearbox is

IceMike 19-11-2008 03:35 PM

im experienced in someways :P

but nah i dont go in to fast, its just on some sections of our track im strugglin to keep it turnin in the corner. pushin it to hard to keep up with bish i think :P

IceMike 19-11-2008 03:37 PM

wot about the shocks mate?? and how much lead in the nose an where u put it??

c0sie 19-11-2008 03:51 PM

35wt front, 30wt rear
Blue front, silver rear
Standard pistons (2 front, 1 rear?? Cant remember)
No rebound

What about a front wing? Pro-Line of JConcepts??

IceMike 19-11-2008 04:04 PM

i have a jconcepts on but not on the car atm. i forgot about taht. should dig that out

_sleigh_ 19-11-2008 04:19 PM

How much rear wing gurney are you running?

IceMike 19-11-2008 04:23 PM

off the top my head. i think its only about 5mm i leave on there. only a little bit to hold the whole fing together

_sleigh_ 19-11-2008 04:52 PM

If it's high speed sweepers you're struggling on, it might be an idea to try a coulple of different rear wings. Depending on the current size of the one you're running then go a little smaller and remove the gurney.

As also mentioned above, try a front wing in combination with these rear wing changes.

ashleyb4 19-11-2008 05:02 PM

Quote:

Originally Posted by IceMike (Post 179991)
im experienced in someways :P

but nah i dont go in to fast, its just on some sections of our track im strugglin to keep it turnin in the corner. pushin it to hard to keep up with bish i think :P

At crashing and yes going into corners far to fast.

Cris I used to suffer from this with my b4 before i saw the light to deal with it persoanlly i just changed my driving a little didnt gun it out of corners as quick took a bit of a wider line into the corner. Generally just went slower though out the corner.

A

Kopite 19-11-2008 05:12 PM

Mike, what servo are you using? have you tried a different one?

If you do glue the servo saver up, it might well be that the servo has been strained so much over a long period of time, it's lost it's torque.

Worth a try pal

IceMike 19-11-2008 05:27 PM

usin a trusty blue bird :P yer i might invest in a new servo soon. ill try everything else first cos i do just think its the setup of the car

super__dan 19-11-2008 06:04 PM

Quote:

Originally Posted by IceMike (Post 180028)
usin a trusty blue bird

Cough cough

Kopite 19-11-2008 06:18 PM

lol!

issue resolved :thumbsup:


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