Rubce Posted October 28, 2012 Share Posted October 28, 2012 Hi AllOne thing that always bugged me about our GT6 was the way the rear wheels pointed inwards at the top despite having a new rear leaf spring fitted 3 years ago. Someone in the TSSC mentioned that a while ago that he had fitted packers to his cars rear spring to make the wheels sit vertical. I also vaguely remember reading an article in a mag where the GT6 had been modified to take coil springs at the rear. All comment or suggestions on the above appreciated.ThanksBruce Quote Link to comment Share on other sites More sharing options...
thebrookster Posted October 28, 2012 Share Posted October 28, 2012 First things first, you do not want the rear wheels to sit completely vertical!! Might look good, but you'll be able to drive round any corner again!!You do not want an excessive amount of lean, but you do want a touch (this is camber, if you weren't aware). I can't recall what the optimum amount is, no doubt someone else will be able to help there :)Secondly, as of yet no-one has managed to get the coil spring mod completely sorted, although there is a thread on here very recently on the subject, so that could well be more of a headache than you anticipate ;) Quote Link to comment Share on other sites More sharing options...
Rubce Posted October 28, 2012 Author Share Posted October 28, 2012 HiYes I was aware a small element of camber was required but I think our car has an excessive amount but perhaps that is just in my mind as I am comparing it to our Stag. How can the camber be adjusted on a GT6?CheersBruce Quote Link to comment Share on other sites More sharing options...
CharliesStag Posted October 28, 2012 Share Posted October 28, 2012 The camber will look excessive in comparison to the Stag if the Stag's subframes are in good order; the ROM quotes the rear wheels of Stag as having zero camber pretty much. However, Chris Witor (and in David Vizzard's early publications of the 6 pot saloons) reckon that 1.5-2 degrees of negative camber on the rear of a road car can be beneficial.As said, dependant on which suspension setup your GT6 has, a small amount of camber on the rear can be beneficial in an attempt at reducing 'tuck-in'.As for the coil spring mod, there is someone who is close to getting a working version ready. Quote Link to comment Share on other sites More sharing options...
GT6 M Posted October 29, 2012 Share Posted October 29, 2012 1, you dont want em verticle, 1.5 to 2 degs neg at rest2, you can alter camber by either packing lower arm out for more, or making lower arm go further into chassis.Or adjustable bottom links.All involved.have you got the right spring,!!!as you may have a de cambered spring init. which will give moer camber.M Quote Link to comment Share on other sites More sharing options...
Clive Posted October 29, 2012 Share Posted October 29, 2012 If it is a non roto GT6, it may be that the rear spring you were supplied is actually a spitfire one, so not strong enough, therefore sagging a bit giving excessive camber. Saying that, there are some poor quality springs about. A local club member bought a new one (totally unused, off a private seller) at a show. It sagged more than the old one once settled in. That was spitfire one too, in a spitfire.Not sure who is selling proper GT6 ones these days, or who sells the best quality ones. It may be batch dependant :-/ Quote Link to comment Share on other sites More sharing options...
Bradley1500 Posted October 29, 2012 Share Posted October 29, 2012 I fitted a new rear spring on the Spitfire last October time, and the bloody thing never settled down (much).If I had of been keeping it I would of fitted an inch spacer block to lower it a bit.You can sort of see here (picture taken a year later!) the positive camber I still had.I bought the spring and two new shocks from Abingdon MG (I know, I know) they were a pleasure to deal with and a good price too.http://www.jagspares.co.uk/abingdon/CarSecView.asp?CarModel=GT6&CarSection=SUR&perpage=10 Quote Link to comment Share on other sites More sharing options...
SpitVX Posted October 29, 2012 Share Posted October 29, 2012 Sorry Clive I am prob missing something here .If the spring is too weak surely it lengthens pushing the top of the wheels out , meaning positive camber , no ? Quote Link to comment Share on other sites More sharing options...
heraldcoupe Posted October 29, 2012 Share Posted October 29, 2012 matgt6 wrote:If the spring is too weak surely it lengthens pushing the top of the wheels out , meaning positive camber , no ?No, in it's static laden position, the spring should be virtually flat, so at it's maximum length. Any deviation up or down will shorten it's effective length.To return to the OP, fitting a spring spacer will increase negative camber, so not the desired effect in this case,Cheers,Bill. Quote Link to comment Share on other sites More sharing options...
Velocita Rosso Posted October 29, 2012 Share Posted October 29, 2012 4992 wrote:I fitted a new rear spring on the Spitfire last October time, and the bloody thing never settled down (much).If I had of been keeping it I would of fitted an inch spacer block to lower it a bit.You can sort of see here (picture taken a year later!) the positive camber I still had.That effect ,if not settling could also mean you have short shafts(MK3) fitted instead of the longer 1500 (by one inch) Quote Link to comment Share on other sites More sharing options...
Clive Posted October 29, 2012 Share Posted October 29, 2012 heraldcoupe wrote:No, in it's static laden position, the spring should be virtually flat, so at it's maximum length. Any deviation up or down will shorten it's effective length.To return to the OP, fitting a spring spacer will increase negative camber, so not the desired effect in this case,Cheers,Bill.But there is another on non-roto cars. The rear driveshafts are solid, with a pivot at the diff. So the softer the sring, the more the shafts pint up, and the wheels are fixed at 90 degrees to the shaft. That gives more negative camber too.... Quote Link to comment Share on other sites More sharing options...
GT6boy Posted October 29, 2012 Share Posted October 29, 2012 I'd be pleasantly surprised to find if anyone stocked or manufactured leaf springs specifically stiffened to the correct GT6 spec, as compared to a generic one size Spitfire/GT6 fits all. Are you confident you have the correct set-up currently at the back? It's not clear what your car is, I'm taking it it's a late mk 3 GT6 with Swingspring? My late mk3 GT6/Spitfire was fitted with the incorrect variety short radius arms, instead of the longer Spit style, or even better, the correct specific GT6 late mk3 versions. I only say this as it would be unwise to take it at face value that your car is nescessarily as it left the factory.... Quote Link to comment Share on other sites More sharing options...
GT6boy Posted October 29, 2012 Share Posted October 29, 2012 ...and Bill is spot-on regarding the fitting of the spring to diff spacers, that'll increase negative camber further. Very good it is too! :) Unless you are after serious 10/10's track day improvement, there is no reason to go beyond what Triumph fitted. It does a perfectly acceptable job, if set up correctly and maintained well. Diagnose the underlying condition before you decide to amputate the rear end! ;D Oh- and another Bruce with a GT6- lovely! Regards Bruce. Quote Link to comment Share on other sites More sharing options...
Rubce Posted October 30, 2012 Author Share Posted October 30, 2012 Hi AllThanks for all your replies. I should have said that our car is a late mark 3 non rotflex. Can someone please advise of the correct lengths for the radius links and drive shafts so I can check the came gas the correct bits fitted. The spring is one I purchased from Paddocks three years ago. RegardsThe other GT6 loving Bruce :) Quote Link to comment Share on other sites More sharing options...
Velocita Rosso Posted October 31, 2012 Share Posted October 31, 2012 GT6boy wrote: I'd be pleasantly surprised to find if anyone stocked or manufactured leaf springs specifically stiffened to the correct GT6 spec, as compared to a generic one size Spitfire/GT6 fits all. Are you confident you have the correct set-up currently at the back? It's not clear what your car is, I'm taking it it's a late mk 3 GT6 with Swingspring? My late mk3 GT6/Spitfire was fitted with the incorrect variety short radius arms, instead of the longer Spit style, or even better, the correct specific GT6 late mk3 versions. I only say this as it would be unwise to take it at face value that your car is nescessarily as it left the factory.... ...Canley`s Quote Link to comment Share on other sites More sharing options...
GT6 M Posted November 1, 2012 Share Posted November 1, 2012 Bruce, not fancy dee,n this,!!http://www.youtube.com/watch?v=zhT3C9mHLZ4&feature=player_detailpageM Quote Link to comment Share on other sites More sharing options...
Rubce Posted November 2, 2012 Author Share Posted November 2, 2012 796 wrote:Bruce, not fancy dee,n this,!!http://www.youtube.com/watch?v=zhT3C9mHLZ4&feature=player_detailpageMeeeerrrrrrrr let me think about that!..........No! :P Quote Link to comment Share on other sites More sharing options...
IVANHOE Posted November 3, 2012 Share Posted November 3, 2012 I have some experience of the same problem. Please check your tracking. If the rear wheels are toe out they are always trying to wind themselves out from under the car, flattening the spring out and giving negative camber. If you reverse, the problem goes the other way and you get positive camber. Try it and see. Sorting the tracking sorted it for me and I now understand why, I couldn't get my head around it initially. Quote Link to comment Share on other sites More sharing options...
SpitVX Posted November 4, 2012 Share Posted November 4, 2012 heraldcoupe wrote:No, in it's static laden position, the spring should be virtually flat, so at it's maximum length. Any deviation up or down will shorten it's effective length.To return to the OP, fitting a spring spacer will increase negative camber, so not the desired effect in this case,Cheers,Bill.Thank you for that bit of education Bill , I always assumed there was still some arching left in the spring , there we go . Matt . Quote Link to comment Share on other sites More sharing options...
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