Losi 22 - 3 steering issues.

[andys]

I'm enjoying racing my Losi - mainly indoors so far on slippy / low grip and carpet.

What I and others I know running the car are finding is a lack of high speed turn in and also a tendancy for the car to push on as opposed to turn when accelerating through corners.

How are other people finding the car?

It's annoying as I can't carry the speed I'd like and also keep tight lines as the car runs wide.

I've seen Ellis Staffords car loaded with weight to the front - obviously to combat this at the Euros (I think)

I have added weight and a front wing.
I've tried less rear toe, kick up plate, v-la positions etc.

also - the car has terrible bump steer if built as kit - changing things cannot totally remove it either.

[AfroP]

i'm not having issues with mine, running on carpet
Use cut staggers on the front, kit shock positions and springs 27.5wt oil
use the 20 degree front kick up shim. and have stuck 20 grams of weight on my servo.

This was to see if I could tease more steering out of it and it worked. so i'll probs get the brass 20 degree kick up shim.

It does seem to pull wide on some tighter corners, but this could be my driving

[No. 46]

Have you tried adjusting your diffs to suit. A slightly looser diff will give you better rotation.

I have been running a gear diff in mine with 5k oil but yesterday went up to 10k on a recommendation by a friend but lost a load of rotation and also high speed steering the the track was slippery yesterday. In high grip im sure it would be fine but does make quite a difference

[discothesnake]

I ran mine for first time yesterday on a mixture of carpet and really slippy gym floor.

I ran a 50g front bulkhead, 52g lipo weight with battery in forward position. Moved the rear camber link up to +1.

Car felt really well balanced. Had as much steering as I would expect on gym hall floor and had plenty of rear end grip.

Very pleased with first run.

[andys]

Cheers for replies chaps.

What's the 50g bulkhead? Is there a part no?

Re steering - I ran at Worksop yesterday and it was again an issue on fast sweeping corners - the car won't hook in - it pushes on through the corners.

Do a test in your cars.

Pick it up and move one side / wishbone up to see the amount of bump steer - you will be shocked. What's happening - is that as the car leans into the corner - compressing the outer front wishbone - the bump steer is actually turning the wheel out of the corner - the wrong way!!!

I compared the Losi to a YZ2 - on the YZ it has very slight positive bump steer - so as the car leans away from the corner - it turns into the corner.

On the Losi - it has massive negative bump steer - so wheel turns away from the corner

Removing spacer on axle side track rod helps - but it's still there.

I know a number of people struggling with steering in low grip tracks - to the point where some have decided to run a different car....

I'm hoping in Astro etc it may not be a problem.

Re running diff looser - bad idea - last thing you want is the diff slipping - I know as I've already had to rebuild and replace balls on mine.

[andys]

Which gear diff fits?

[jk007]

Originally Posted by andys

Cheers for replies chaps.

What's the 50g bulkhead? Is there a part no?

Re steering - I ran at Worksop yesterday and it was again an issue on fast sweeping corners - the car won't hook in - it pushes on through the corners.

Do a test in your cars.

Pick it up and move one side / wishbone up to see the amount of bump steer - you will be shocked. What's happening - is that as the car leans into the corner - compressing the outer front wishbone - the bump steer is actually turning the wheel out of the corner - the wrong way!!!

I compared the Losi to a YZ2 - on the YZ it has very slight positive bump steer - so as the car leans away from the corner - it turns into the corner.

On the Losi - it has massive negative bump steer - so wheel turns away from the corner

Removing spacer on axle side track rod helps - but it's still there.

I know a number of people struggling with steering in low grip tracks - to the point where some have decided to run a different car....

I'm hoping in Astro etc it may not be a problem.

Re running diff looser - bad idea - last thing you want is the diff slipping - I know as I've already had to rebuild and replace balls on mine.

Hi Andy
I ran my 22.30 for the first time at Worksop on Sunday and struggled with it
I ended up with front camber link on the inner hole with 4mm washers
For the final and it was the best it had been all day
Not the best result I've had but finished 4th in the D final
Will see how she goes at Yorcc in 2 weeks next run out

[Al3xis007]

Originally Posted by andys

Pick it up and move one side / wishbone up to see the amount of bump steer - you will be shocked. What's happening - is that as the car leans into the corner - compressing the outer front wishbone - the bump steer is actually turning the wheel out of the corner - the wrong way!!!

I compared the Losi to a YZ2 - on the YZ it has very slight positive bump steer - so as the car leans away from the corner - it turns into the corner.

On the Losi - it has massive negative bump steer - so wheel turns away from the corner

Removing spacer on axle side track rod helps - but it's still there.

I know a number of people struggling with steering in low grip tracks - to the point where some have decided to run a different car

So bump steer;
bump in (outer wheel turns into a corner) and
bump out (outer wheel turns out of a corner)
Bump steer adjusted by washers on the steering hub and the axle height height.

So the problem you're having is not to do with the bump steer, personally my 22 turns up its own arse with kit settings in the wet, how many Ackerman washers do you have? If you reduce the washers the more Ackerman it has, this will chill it out in the dry but seeing as you're after steering, try adding 1.5mm and move the front link in, this will sharpen up the front. Hth