Tony Posted February 5, 2009 Report Share Posted February 5, 2009 Here is a racing dolomite doing about the sameIs it just a trait of the Dolomites to do this ? I hope mine hasnt turned to jelly I see that.... But the problem then was diagonal loading during transition, plus castor sweep was a mystery in those days. The images of your car are under thrust application, do you agree with that? Yes it does seem to happen under accelerating out of tight corners Could the rear suspension be set up too soft ? Yes..... roll centre couple could be way off.... That's why i'm concerned about the removed sway? Quote Link to comment Share on other sites More sharing options...
Daz f Posted February 5, 2009 Author Report Share Posted February 5, 2009 Here is a racing dolomite doing about the sameIs it just a trait of the Dolomites to do this ? I hope mine hasnt turned to jelly I see that.... But the problem then was diagonal loading during transition, plus castor sweep was a mystery in those days. The images of your car are under thrust application, do you agree with that? Yes it does seem to happen under accelerating out of tight corners Could the rear suspension be set up too soft ? Yes..... roll centre couple could be way off.... That's why i'm concerned about the removed sway? How can i check this All of the Racing Dollies had the rear anti roll bar removed. Quote Link to comment Share on other sites More sharing options...
Tony Posted February 6, 2009 Report Share Posted February 6, 2009 I have consulted my mentors about your issue.... we can discuss the solution once you have consumed the reason. Here is the reply> ............................ It's quite common to see vintage rear wheel drive cars "lifting a front paw" it's born of the use of a series of major "crutch" style handling modifications designed to overcome the inherently poor dynamic behavior of the base design. I could talk forever about this subject because it's VERY in depth and very interesting beleive me, but in simple layman's terms it's caused by the compression amount of the outside rear suspension being far greater than the front inside corners maximum available droop. The fact that it's lifting the entire front corners is actually quite a testament to the chassis stiffness, and ultimately the dynamic weight distribution will work best set-up like this. Ok so it's not an ideal situation in these enlightened modern times but it's a way to get the best out of an old chassis. ............................. Quote Link to comment Share on other sites More sharing options...
CIH Posted February 6, 2009 Report Share Posted February 6, 2009 Sounds like it would be tricky to fix without a major re-think ? I think the fact the factory cars, albeit from a fair few years ago, displayed the same behaviour doesn't bode well ? Quote Link to comment Share on other sites More sharing options...
Tony Posted February 6, 2009 Report Share Posted February 6, 2009 Sounds like it would be tricky to fix without a major re-think ? I think the fact the factory cars, albeit from a fair few years ago, displayed the same behaviour doesn't bode well ? This example needs a unique solution, i'm reasonably clued up on chassis dynamics but i'm far from God so even i seek enlightenment in certain situations. My "mentor" offers reasons but not realistic solutions other than weight distribution indexing?............... I'm ok with that but i feel the solution will belay the goal and hinder the car's intentions. Quote Link to comment Share on other sites More sharing options...
Daz f Posted February 7, 2009 Author Report Share Posted February 7, 2009 Sounds like it would be tricky to fix without a major re-think ? I think the fact the factory cars, albeit from a fair few years ago, displayed the same behaviour doesn't bode well ? This example needs a unique solution, i'm reasonably clued up on chassis dynamics but i'm far from God so even i seek enlightenment in certain situations. My "mentor" offers reasons but not realistic solutions other than weight distribution indexing?............... I'm ok with that but i feel the solution will belay the goal and hinder the car's intentions. I can see this is going to be complicated I dont mind if i have to cut the car about abit or change things I have owned it since 1983 and dont mind how long or how much £ it takes to get it right So i need to get the corner weights done to see what i have Probably some new remote res shocks ? of decent quality valved correctly ? I was thinking some of these Nitron NTR Track double adjustable dampers Some decent quality springs ( i currently use Faulkners ) Progressive ?? This is all i can think of to do so far Quote Link to comment Share on other sites More sharing options...
Tony Posted February 8, 2009 Report Share Posted February 8, 2009 Corner weight and wheel base will allow an index for the chassis, exactly how we deal with this information i'm not sure, nevertheless it is a positive move into understanding the beast. Quote Link to comment Share on other sites More sharing options...
Daz f Posted February 8, 2009 Author Report Share Posted February 8, 2009 Engines aren't my strong point but is it a cossie? Yes it is a cossie engine Here is my rolling road report Its a bit more powerfull now due to more boost and nitrous Got to love the cosworth engine That's mental!! Don't suppose you have a copy of the feature when it was in Retro so I (we) can have a read? Here is a link to the retro mag feature http://www.triumphowners.com/alg1k.pdf AND a bit of a video http://www.youtube.com/watch?v=i9VciqTPCMI Quote Link to comment Share on other sites More sharing options...
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