Steering sensitivity.?
Steering sensitivity.?
Author
Discussion

TailEndCharlie

Original Poster:

118 posts

221 months

Friday 5th June 2015
quotequote all
Ok ive had my car for about 2 months now, and i find everytime i drive it i need to concentrate a lot more than my "other" cars.
IE the steering is very precise and the car seems very "pointy".
Im guessing this is a trait of the cerbera having a "quick" rack.
The alighnment has been checked and is ok...
Is there anyway of de-sensitising it. Other than putting a different rack in.. Or is the rack specific to the cerb...
Cheers Dave W.

msmith0592

303 posts

167 months

Friday 5th June 2015
quotequote all
Surely that's what makes the car so fun!

GT6k

942 posts

185 months

Friday 5th June 2015
quotequote all
Somewhere it says that the Speed 6 has a slower rack than the AJP cars but I don't know whether it is true. I think you are just too used to driving mushy front wheel drive euroboxes.

Jubag

114 posts

139 months

Friday 5th June 2015
quotequote all
GT6k said:
Somewhere it says that the Speed 6 has a slower rack than the AJP cars but I don't know whether it is true. I think you are just too used to driving mushy front wheel drive euroboxes.
That is correct.

HarryW

15,825 posts

292 months

Friday 5th June 2015
quotequote all
Yep twitch when sneezing on a motorway and you can go from lane 1 to 3 rather quickly, I like it.....

DAVEY DEE

647 posts

177 months

Friday 5th June 2015
quotequote all
Not just me then!! Lol

Brummmie

5,284 posts

244 months

Friday 5th June 2015
quotequote all
Speed 6 rack is half a turn slower, it's the bump steer that makes them so terrifying, but this can be tweaked.
Mine was a hedge finder on bumpy lanes, but it's sorted now.

gruffalo

8,090 posts

249 months

Friday 5th June 2015
quotequote all
Love it or loath it the Cerb is a car you get by the scruff of three neck and have to dominate.

Just like a good woman;-)

Oh yes they also like a good thrashing just like a go..

Best I stop there me thinks!

HarryW

15,825 posts

292 months

Friday 5th June 2015
quotequote all
the easy they can change direction should not be confused with nervousness. You do hear two main complaints, either they are dangerous on bumpy roads or they love to follow ruts. Decent suspension correctly set up is needed. Once done they are a surprisingly agile car, not quite a lotus but pretty good IMHO.

DCerebrate

373 posts

133 months

Friday 5th June 2015
quotequote all
From recent experience agree totally with need for suspension set-up by a specialist, not your local fast fit centre. My SpeedSix suspension was crashing on potholes at 5mph, wearing inner side of tyres, and steering made me nervous, never mind the Cerb. Professional set-up cured all of the above.

Byker28i

83,971 posts

240 months

Saturday 6th June 2015
quotequote all
I don't have this issue, used to seriously bother the tramlines on motorways but now don't have a problem after the suspension was changed and setup.
Also, what tyres do you have and what tyre pressures?

LincsCerb

128 posts

143 months

Saturday 6th June 2015
quotequote all
If you don't have excessive negative camber at the front which will make it feel very twitchy and more susceptible to bump steer, then you could try adding a bit more toe in this will make the car feel more stable and less sensitive to steering input. If its setup properly then it shouldn't feel like it always trying to kill you.

HarryW

15,825 posts

292 months

Saturday 6th June 2015
quotequote all
Not sure what is excessive camber but I run 2.5 dregs and it doesn't suffer from bump steer and is quick to change direction. I also run Intrax shocks and eibach(?) springs. I'm not sure if half the issues are for those with 'slammed' ride heights on tired suspension, mine is pretty near standard heightand looks jacked up compared to some I've seen? It's probably not an optimal track setting but is very good on our roads....

Hawkeye1922

136 posts

200 months

Monday 8th June 2015
quotequote all
Brummmie said:
Speed 6 rack is half a turn slower, it's the bump steer that makes them so terrifying, but this can be tweaked.
Mine was a hedge finder on bumpy lanes, but it's sorted now.
Brummmie, would be great to know how you fixed the bump steer. thanks

TailEndCharlie

Original Poster:

118 posts

221 months

Monday 8th June 2015
quotequote all
Thanks folks for the replies so far...

No i dont just drive front drive euro boxes..But a miriad of different performance cars.!!!!

HarryW
Where did you get your intrax shocks from, and how do you find them.? What sort of adjustments are there on them.?

Brummie.
Itd be nice to know how you fixed the bump steer.?
Was it with some spacers under the steering rack.

Ta.


Brummmie

5,284 posts

244 months

Monday 8th June 2015
quotequote all
Hawkeye1922 said:
Brummmie, would be great to know how you fixed the bump steer. thanks
Raising the rack was stage one, I also had adapters made so i could "flip" the track rod ends, stock geometry is so far out, you need to try and get the arms to follow a similar trojectory through their travel.
Mine to start with, with the bottom wishbones flat, the tie rods were at a far more acute angle, not a good start.

You can measure bump steer with a couple of axle stands and some wire tied between to act as a straight edge to measure from, move the wheel up through the arc (without shock in situ so its free to move) and measure from the front and back of wheel.
Remember to hold the car at the ride height you wish to start at.
Add and remove washers until you get best results, crude but if you persevere its worth doing.
You will have to get the tracking reset too.

TailEndCharlie

Original Poster:

118 posts

221 months

Monday 8th June 2015
quotequote all
Do you happen to have any pics of the adapters you had made to flip the track rod ends over...? Please...