Discussion
I'm out of the country for a bit but rest assured I'll let ya know how it goes......just don't hold your breath. Gerjo, I've got standard dampers and I've no doubt yours are the bollox but they aint gonna counteract lift.....try driving with your bootlid unlocked and see how soon it lifts up
quote:
I have special Koni's and have no trouble at all with lift
Good dampers may help the high speed handling, but dampers won't change the amount of aerodynamic lift.
How are you going to tell whether the mod actually works? I've just finished measuring the lift on the V8S (with a view to doing something similar but on the underside of the car) and to be honest the results are not at all what I was expecting. However, I did find the high speed (120 - 160) handling changed from scary to solid as a rock after the last round of geometry changes.
PS the S03s probably helped here too. Oops wrong thread!
>> Edited by GreenV8S on Wednesday 3rd July 18:54
>> Edited by GreenV8S on Wednesday 3rd July 18:55
>> Edited by GreenV8S on Wednesday 3rd July 18:55
>> Edited by GreenV8S on Wednesday 3rd July 20:09
Go easy when adding down force to TVRs, its very easy to get it wrong, unfortunately i cant offer definative advice for Griffiths, but when i had my 89 Tuscan on the road i learned that you need to modify the front end to reduce lift, increasing rear downforce was deemed dangerous for high speed stability. Griffiths that i have seen heavily modified had front splitters/ spoilers with the rears end left alone. I guess a small gurney spoiler may be a possibility, but think about front end to.
Tim
>> Edited by 2 Sheds on Wednesday 3rd July 19:52
Tim
>> Edited by 2 Sheds on Wednesday 3rd July 19:52
hmmmm...my only way of doing it was to add something adjustable and try it out, it wouldn't take a lot to make a difference, just a sharp edge, the curved arse may look sexy but is the worst shape ever for the back of a car, probably why the only other such was the TT and they soon put a spoiler on that......but 2sheds comments have got me thinking. As for SO 3's, I've fitted a pair of 205/50 x 16's to the front on my Saab and they are bloody excellent......just not so good on my Griff
>> Edited by apache on Thursday 4th July 09:36
>> Edited by apache on Thursday 4th July 09:36
Apache - the griff is such a classic shape it seems
a shame to mess with it but I do agree they do seem
to suffer with lift and rear end instability especially
in fast corners (120 plus).
I think a better solution may well be to lower the car
by 2 inches - then the wheels would not look so lost in the wheel arches, fix better shocks (ohlins would be good) and then have someone like Colin Blower motor sport adjust the geometry and corner weight it.
Manek had this done to this Chimp (geometry changes) and was raving about it !
the
a shame to mess with it but I do agree they do seem
to suffer with lift and rear end instability especially
in fast corners (120 plus).
I think a better solution may well be to lower the car
by 2 inches - then the wheels would not look so lost in the wheel arches, fix better shocks (ohlins would be good) and then have someone like Colin Blower motor sport adjust the geometry and corner weight it.
Manek had this done to this Chimp (geometry changes) and was raving about it !
the
In my limited experience of driving a Griff at high speed, it's the front that gets light, not the back. That's why that blue French Griff has little winglets at the front corners. Ultimately you're going to need a wind tunnel to prove anything - I have a feeling that what you think might happen actually doesn't!
We have a boot lid spoiler part finished for the Griffith Coupe
www.zertec.co.uk/7.htm
www.zertec.co.uk/7.htm
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