Cookie Monster Posted February 15, 2014 Share Posted February 15, 2014 Just had Nitrons fitted along with new 888's & have to say it's a little firm! Car isnt taxed so have only been round the block but blimey..... Any thoughts? Going to get flat floor & full set up in a couple of weeks so are there any must do's? Link to comment Share on other sites More sharing options...
johnnyseven Posted February 15, 2014 Share Posted February 15, 2014 spring rates? how many clicks from the softest setting have they been set as? Link to comment Share on other sites More sharing options...
Cookie Monster Posted February 16, 2014 Author Share Posted February 16, 2014 Sorry, not being clear! 225 front &150 rears. I think my question is how many clicks from full hard are most running for: 1. Track 2. Fast road, in other words compliant but grippy I appreciate its all about personal preference but interested in others views/settings Thx Link to comment Share on other sites More sharing options...
peter clarke Posted February 16, 2014 Share Posted February 16, 2014 I have standard Nitrons, well 7 years old so original valving. S3 13" wheels 225+ 150 helpers front wide track and CATERHAM progressive on rear. For road use 16/17 clicks from hard on front and 17/18 on rear. With the previous 225 and 130 set up used 17 on front and 18 on rear but still not the best for road. Really need to get them revalved but with 17 psi on the 888's the present set up is pretty good for the local roads. Link to comment Share on other sites More sharing options...
6speedmanual Posted February 16, 2014 Share Posted February 16, 2014 What springs did you have before? Can they be fitted on your Nitrons? And previous tyres were what? Peter Link to comment Share on other sites More sharing options...
Simon.Rogers1 Posted February 16, 2014 Share Posted February 16, 2014 I do try to say that standard Nitrons are to hard. Valving is way to stiff in rebound. You need them re valved to something different. Link to comment Share on other sites More sharing options...
Bio Posted February 16, 2014 Share Posted February 16, 2014 Hi Phil Try mid range on the front and nearly full soft on the rear. One or two clicks make a big difference . Link to comment Share on other sites More sharing options...
peter clarke Posted February 16, 2014 Share Posted February 16, 2014 Talk to Simon. I had Bilsteins but very hard and have had various springs. Next time I go to the UK, which is not so often now, will have the Nitrons revalved. Link to comment Share on other sites More sharing options...
johnnyseven Posted February 16, 2014 Share Posted February 16, 2014 You need to count the clicks to see where you are- mine are 24 clicks from hard to soft- from memory I'm 4 clicks from soft at rear, 6/7 clicks from soft front-have fun! Edited to say that's for road. Edited by - johnnyseven on 16 Feb 2014 11:36:49 Link to comment Share on other sites More sharing options...
Birkin S3 ZA. Posted February 16, 2014 Share Posted February 16, 2014 Yes they are very hard from Nitron, both compression and rebound shim stacks are to stiff. Even with the adjusters full out there to hard, I run 225 rear springs and 300 front with all my A arms running low friction Teflon bushes or needle bearings. I re-shimmed the shocks and found the high speed compression was still to stiff, due to the holes in the pistons restricting flow. Now they are working great for racing and road, there very well made inside just a pity Nitron don't know how to set them up for a light car for road use. My suggestion would be to send them to Simon to be re-shimmed, unless you read my article in low flying from last year and try yourself 😬 Chris. Link to comment Share on other sites More sharing options...
Simon.Rogers1 Posted February 16, 2014 Share Posted February 16, 2014 Chris The only thing I would add is that actually the compression(bump) needs to actually go a little harder. But the rebound is nearly 4 time to hard! Then running softer springs 200/130 for a K but with the slightly harder compression you get to keep a supple ride and some traction. Link to comment Share on other sites More sharing options...
peter clarke Posted February 16, 2014 Share Posted February 16, 2014 Simon, Chris great information, always felt that the dampers are trying to do the work of the springs. That is why I keep reducing the spring rates and getting better but not right!! If that makes sense. Link to comment Share on other sites More sharing options...
Gary Stone Posted February 16, 2014 Share Posted February 16, 2014 Just had mine re-valved by Simon. I have yet to try them out yet as car is still un taxed. But looking forward to it. Simon says will make a big difference. Edited by - Gary Stone on 16 Feb 2014 19:46:03 Link to comment Share on other sites More sharing options...
Birkin S3 ZA. Posted February 16, 2014 Share Posted February 16, 2014 Peter, I have always found that changing springs to compensate for poor damper settings is not the right way. Friction free arms and the correct springs for the cars use is the best way, then a good set of shocks set up to give good controlled movement is the correct way I have found. Then you will find the adjusters will also work better when there not trying to compensate for other things. I have learnt most of what I know working on off road mx bikes, rusted suspension bearings and the wrong spring rates can never be compensated by adjusting the dampening. Friction from old needle bearings on the bikes rear suspension has a huge influence on movement and harshness, with going the same way on my A arms I can run slightly stiffer springs than most cars and still have good movement without it being harsh. Chris. Link to comment Share on other sites More sharing options...
peter clarke Posted February 17, 2014 Share Posted February 17, 2014 Gary, let us know your findings please. Chris, like all things do it right. Springs are relatively cheap and help but as you say it does not resolve the problem. In the passed, like 6-7 years ago, it was difficult to find good input on this subject. thanks for your input and your article. Peter Link to comment Share on other sites More sharing options...
Pendennis Posted February 17, 2014 Share Posted February 17, 2014 I agree with what Chris and Simon say. My last two competitive Sevens, I bought a set of Nitrons. In both cases I kept returning them back to Nitron eventually got something that was useable. The damping was the problem, twas so hard it was out of range. Although, I don't own the cars anymore, I know these dampers are still on the respective cars and I am sure both owners don't use anymore than 3 or 4 clicks and that is on a stiff sprung race car Link to comment Share on other sites More sharing options...
captain chaos Posted February 20, 2014 Share Posted February 20, 2014 Looking at getting my nitrons revalved...whos in the market for doing this work as I'm not up for repeated trial and error sessions with nitron themselves. Link to comment Share on other sites More sharing options...
7 wonders of the world Posted February 20, 2014 Share Posted February 20, 2014 I would be looking to speak with Simon @ Meteor Link to comment Share on other sites More sharing options...
Grim Reaper Posted February 21, 2014 Share Posted February 21, 2014 If you send them back to Nitron, ask them to revalve them to the same spec as Peter Ellis (Petrolhead on here) I had mine done and they are just about as good as I could wish them to be. Link to comment Share on other sites More sharing options...
Simon.Rogers1 Posted February 21, 2014 Share Posted February 21, 2014 Peters spec is nothing like mine. Link to comment Share on other sites More sharing options...
captain chaos Posted February 21, 2014 Share Posted February 21, 2014 ideally..i want to find someone who will open them up... recognise the the valving set up and then I can tell them what I'm looking for. Im not too keen on following other peoples settings...my car is a vx...whether ideal or not..I like a firm ride...urrent set up is way too firm and offers no compliance in wet or damp conditions). Lke others have said, simply throwing on softer springs is only part of the cure... Link to comment Share on other sites More sharing options...
Simon.Rogers1 Posted February 21, 2014 Share Posted February 21, 2014 Thats what I can do. I am an Official Nitron Service Agent. Link to comment Share on other sites More sharing options...
BSA Posted February 21, 2014 Share Posted February 21, 2014 Quoting captain chaos: ideally..i want to find someone who will open them up... recognise the the valving set up and then I can tell them what I'm looking for. Im not too keen on following other peoples settings...my car is a vx...whether ideal or not..I like a firm ride...urrent set up is way too firm and offers no compliance in wet or damp conditions). Lke others have said, simply throwing on softer springs is only part of the cure... Your question has been answered several times with the opinion Simon at Meteor Motorsport is the Nitron expert to consult Link to comment Share on other sites More sharing options...
Birkin S3 ZA. Posted February 21, 2014 Share Posted February 21, 2014 Captain chaos, you really want to do it the long hard way 🤔 read my article from last year in low flying and have a rethink if you feel up to it. you will have to strip them a few times to change the shims to get what you want, and then refit drive and feel the difference. better done all in one day if you can. Or send them to Simon and once done you can stiffen it up with the adjuster Chris. Link to comment Share on other sites More sharing options...
captain chaos Posted February 22, 2014 Share Posted February 22, 2014 thanks for the replies... whilst I'm tempted to folow your advice Birkin...Im going to give simon a call first and take it from there.. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now