Tyre pressures and stuff!
Discussion
Just thought I would share my findings with you all, especially now the roads are becoming,,,,,,,,,, slippy!
Few weeks back, I had some new Toyo T1R tyres fitted, Replacement Gaz Gold shocks, due to them cracking as has been described already, Re con steering rack and a few other bits as is the norm with these cars!
The Gaz shocks were fitted and set up without cost to myself.
Drive home, was shall we say, interesting. I am sure you’re all aware of “bedding in” new tyres, a MUST for these cars.
Gaz have changed the spec of the rear springs to a slightly softer setting. What with the new tyres, re con rack, and new settings for the shocks, the front end was “light” and the rear “bouncy”, not particularly confidence inspiring!
As it was late, and hissing it down I left it alone until another suitable day to check over.
I found the front tyres set at 28psi, so let them down to 24, I turned up the rear shock adjusters by 2 clicks stiffer, and now what with the tyres having done about 200 miles and the rack all bedded in, the Car is now back as it was, albeit with the steering a tad lighter, and traction much improved. It runs and drives better now than ever.
My point is, these cars, more so than any other road car I have driven, are very sensitive to set up, if in doubt get yours checked out if you cannot do it yourself.
I know many of you are aware of these points already, just tying to help
Be safe
Few weeks back, I had some new Toyo T1R tyres fitted, Replacement Gaz Gold shocks, due to them cracking as has been described already, Re con steering rack and a few other bits as is the norm with these cars!
The Gaz shocks were fitted and set up without cost to myself.
Drive home, was shall we say, interesting. I am sure you’re all aware of “bedding in” new tyres, a MUST for these cars.
Gaz have changed the spec of the rear springs to a slightly softer setting. What with the new tyres, re con rack, and new settings for the shocks, the front end was “light” and the rear “bouncy”, not particularly confidence inspiring!
As it was late, and hissing it down I left it alone until another suitable day to check over.
I found the front tyres set at 28psi, so let them down to 24, I turned up the rear shock adjusters by 2 clicks stiffer, and now what with the tyres having done about 200 miles and the rack all bedded in, the Car is now back as it was, albeit with the steering a tad lighter, and traction much improved. It runs and drives better now than ever.
My point is, these cars, more so than any other road car I have driven, are very sensitive to set up, if in doubt get yours checked out if you cannot do it yourself.
I know many of you are aware of these points already, just tying to help
Be safe
I'd always thought my car (a Mk1) had felt a bit "squishy" with the tyres set as per the handbook (22 front, 24 rear), especially the front which seemed to wander. Having planned to go to a carlimits day I pumped it up all round to about 32psi and this actually felt quite a bit better to me.
I have since seen that the handbook for the Mk2 Tuscan http://www.mytuscan.co.uk/downloads.php says 28psi all round for normal driving, and a little higher for trackdays.
I suppose I may lose a little grip running them higher, but I definately prefer they way it feels so will be keeping mine at 28 all round.
Edited to add - mine's on std suspension.
I have since seen that the handbook for the Mk2 Tuscan http://www.mytuscan.co.uk/downloads.php says 28psi all round for normal driving, and a little higher for trackdays.
I suppose I may lose a little grip running them higher, but I definately prefer they way it feels so will be keeping mine at 28 all round.
Edited to add - mine's on std suspension.
Edited by RM75 on Tuesday 1st December 15:44
that's right
only highways and nice turning tarmac roads.
i'm not into rallye driving
the thing is that i don't mind a soft ride but i don't like a bouncing car
when the arse of the car moves it must be because it's sliding not because it's rocking
the tuscan is like a rocking chair
it keeps on bouncing
my esprit alsmost didn't hav any movement. (awesome)
as i have stiffer dampers if this doesn't get better i'll mount stiffer springs
rens
only highways and nice turning tarmac roads.
i'm not into rallye driving
the thing is that i don't mind a soft ride but i don't like a bouncing car
when the arse of the car moves it must be because it's sliding not because it's rocking
the tuscan is like a rocking chair
it keeps on bouncing
my esprit alsmost didn't hav any movement. (awesome)
as i have stiffer dampers if this doesn't get better i'll mount stiffer springs
rens
Edited by rens914 on Tuesday 1st December 20:49
So if I stiffen up the shocks will it stop this sideways action ?
Hope so.
[/quote]
that's what i'm hoping for
if you understand the working of shocks and springs you'll know that the problem is more a spring thing than a shock thing
when a car squat's to easyly it's the spring when the car comes up to soon it's the shock
my combination did both
with new (and heavy'er)pistons it's not the shock anymore
i need thicker springs on the backside.
a car so fast and with this cornering ability must lay on the road/track like a brick.
at this moment it's nice for driving up and down to work and touring around but that's not where this car is ment for (at last not the engine)
rens
Hope so.
[/quote]
that's what i'm hoping for
if you understand the working of shocks and springs you'll know that the problem is more a spring thing than a shock thing
when a car squat's to easyly it's the spring when the car comes up to soon it's the shock
my combination did both
with new (and heavy'er)pistons it's not the shock anymore
i need thicker springs on the backside.
a car so fast and with this cornering ability must lay on the road/track like a brick.
at this moment it's nice for driving up and down to work and touring around but that's not where this car is ment for (at last not the engine)
rens
Edited by rens914 on Friday 4th December 08:45
For road use only, I can see why Gaz have softened the rear springs. The ride and traction are better than before. You can control the bouncing by altering the shock settings, it is a fine line though.
Answer is go out for a drive, and take a blanket to lie on when you stop to alter the shocks
I agree Rens, for fast smooth road use and track use, stiffer springs will improve the control of the car.
Unfortunately here in the UK, we are somewhat lacking in smooth roads, along with the persistent rain!
What we need is variable rate springs, and adjustable damper control, that will sort it!
Answer is go out for a drive, and take a blanket to lie on when you stop to alter the shocks
I agree Rens, for fast smooth road use and track use, stiffer springs will improve the control of the car.
Unfortunately here in the UK, we are somewhat lacking in smooth roads, along with the persistent rain!
What we need is variable rate springs, and adjustable damper control, that will sort it!
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