Discussion
Evening all,
After enjoying my first weekend with the Tuscan in absolutely ages, it's so much fun and still enjoy it, but aside from needing a few minor jobs doing it keeps reminding me how incredibly unstable it is at anything over 60~. It gets worse with speed, I had the chance to give it a right good blast up a straight (but slightly bumpy) road and I had to back off as I couldn't keep it in a straight line, twitchy doesn't start to describe it!
It's a 2000 non S, I don't think the lack of a splitter will be the cause of this problem, as it's not a particularly high speed problem, and it doesn't feel like lift, more like completely garbage geometry!!
I know I need to start by checking geo, but could the steering rack height be why it is so nervous (bump steer)? It would be nicer if the rack was slightly less sensitive, but I know I can't change that.
Any thoughts welcome!
After enjoying my first weekend with the Tuscan in absolutely ages, it's so much fun and still enjoy it, but aside from needing a few minor jobs doing it keeps reminding me how incredibly unstable it is at anything over 60~. It gets worse with speed, I had the chance to give it a right good blast up a straight (but slightly bumpy) road and I had to back off as I couldn't keep it in a straight line, twitchy doesn't start to describe it!
It's a 2000 non S, I don't think the lack of a splitter will be the cause of this problem, as it's not a particularly high speed problem, and it doesn't feel like lift, more like completely garbage geometry!!
I know I need to start by checking geo, but could the steering rack height be why it is so nervous (bump steer)? It would be nicer if the rack was slightly less sensitive, but I know I can't change that.
Any thoughts welcome!
I'm planning on getting the geo done shortly, then will look at the 3mm spacers. What should the tyre pressures be on 18" spiders? The owners manual just states 22psi for 16" wheels!
I'd love the rack to be less sensitive, similar to your Evora, I reckon I could get from A to B much faster in my Mrs' Audi TT, I can have the wheels struggling for grip right up to 4th whilst pushing it round a corner, if I tried anything like that in the Trev I probably wouldn't be here to tell the tale!
I'd love the rack to be less sensitive, similar to your Evora, I reckon I could get from A to B much faster in my Mrs' Audi TT, I can have the wheels struggling for grip right up to 4th whilst pushing it round a corner, if I tried anything like that in the Trev I probably wouldn't be here to tell the tale!
phazed said:
Your problems sound awful, should have bought a chim 
Seriously, my handling was that poor when I swapped to a new set of dampers by a well known manufacturer. Country lanes were downright dangerous with the car bumping, skipping and being thrown off line by the slightest irregularity in the road.
I changed back to my Gaz Monos and the problem was solved.
Sounds like your damping is way too hard or your units are shot/useless/ set up very badly.
The car has Gaz adjustables on it, not sure which as were fitted when I bought it, and are set to the softer side of average!Seriously, my handling was that poor when I swapped to a new set of dampers by a well known manufacturer. Country lanes were downright dangerous with the car bumping, skipping and being thrown off line by the slightest irregularity in the road.
I changed back to my Gaz Monos and the problem was solved.
Sounds like your damping is way too hard or your units are shot/useless/ set up very badly.
I think my tyre pressures may be closer to 30, although this is a hazy guess, I'll check tonight as heading back to the garage later. I guess this could make a fair difference on a light car as you say.
After getting the car back from Castle at Bishops Stortford, it feels like a completely different animal! Handling is spot on, I can actually completely let go of the wheel on a straight road and it doesn't even twitch.
Also I had air leaks on the TB's and they were not set up correctly, along with a few other items, it drives much better in every way!
I'm not even going to bother with the 3mm spacers now, I had intended on putting them on but I don't see how they can make it any better. Next big spend will be Nitrons over the winter!
Also I had air leaks on the TB's and they were not set up correctly, along with a few other items, it drives much better in every way!
I'm not even going to bother with the 3mm spacers now, I had intended on putting them on but I don't see how they can make it any better. Next big spend will be Nitrons over the winter!
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