What is the difference between the two suspension pictures?

[Filos Hippos]

Hello,

I am about to upgrade the suspension on my Tuscan II in order to get rid of the infamous bump steer.

Was thinking of ordering spacers, Nitrons and have the car set up and corner weighted by a specialist.

What would be the best kit on offer? And what's the difference between these two or which kit is best?

Pic from Nitron website:

Fitted with double springs.


Pic from Power website:

Fitted with eibach springs.

Thanks for the advise!

[Basil Brush]

You shouldn't need spacers on a TII as the later geometry was adjusted to deal with the KPI issue.

[m3jappa]

The first pic just shows a helper spring. Remember too that a lot of the pictures for items like this are just a catalogue photo so not necessarily the shock for your car,

For the record I have gaz mono which are similar to nitron and the looked like the power picture. I have had to use helpers on the rear though to get the car low enough and IMO its still too high, gaz want me to take the car in to have a look into it as there's no more adjustment left.

[Basil Brush]

Walford said:

Filos Hippos said:

Hello,

I am about to upgrade the suspension on my Tuscan II in order to get rid of the infamous bump steer.

Dampers can only coarse bump steer if ride high is wrong

Uprated springs can limit the bump steer by reducing suspension travel. It doesn't address the issue.

[glow worm]

I like my Bilsteins, and you already have Eibach springs ... Adjusting the steering rack height is a lot cheaper and I think it works.

Save your money and get a bespoke remap from TVR Power or at least a modified map with the money you save .

Will not do anything for bump steer but your engine will run a lot better

Edited by glow worm on Sunday 28th October 18:21

[NCE 61]

The Bilsteins as fitted to the 2006 Tuscans are very good and with the correct S spec springs, on the road you will find them as good as the Nitrons. I had Nitrons on my MK1 and although they were good on typical Belgian roads the damping had to be adjusted close to the softest setting to give any sort of ride comfort.

As for the bump steer raising the tack is one way, but the STR8SIX bump steer modification with the Sagaris steering arms (if still available) is possibly a better solution.

[NCE 61]

Walford said:

What are the spring rates

I am not sure of the actual spring rates, although from memory the colour coding on my 06 Tuscan S is blue for the rear and white for the front.

[glow worm]

Greens on the front, Blues on the rear on an 'S'.... well thats what mine are
IIRC Whites are standard, but Ben Lang did change it.

I'll find out the difference in springs for interest.
FRONT




REAR

Edited by glow worm on Monday 29th October 14:57

[NCE 61]

glow worm said:

Greens on the front, Blues on the rear on an 'S'.... well thats what mine are
IIRC Whites are standard

I'll find out the difference in springs for interest.

And I thought green was standard, would be interesting to know the colour/spring rates. Not 100% sure on the front colour on mine, but they do work very well

[mtapscott]

The Nitron's can be fitted with any spring rate you desire. The valving is then matched to both the spring rates and the style of driving your dampers are being built for (ie road/track/race).

The two photos show an up-to-date build and an old style build. Both are generic images and do not reflect the exact spec of the kit that you may want.

lowering the car will of course affect the bump-steer characteristics and this is true for any/all shock/spring combinations. Your roll-centres will also be affected.

Nitron are always happy to answer any questions you have directly.

I am travelling to the SEMA show in Vegas this evening, as such my response time will be slightly increased, however you can call the office and be put through to anyone of our engineers who will be able to advise.

thanks!

Mark.

[e-mail]
01993 849 449

[Filos Hippos]

On my LHD Tuscan II there's greens on the front and whites on the rear AND ridiculous amount of bump steer...

They make a fair bit of squeaking noise aswell (rears as far as I can work it out.)

These are the codes:

Front:


Rear:

[glow worm]

I think that's standard non-S ... with whites on the rear.
I had the rack raised with this spacer...only this much clearance from the chassis

[Filos Hippos]

Ok, I am about to order the NITRONS.

But still undecided between two options.

1) The "older" kit from TVR power with the optional eibach springs

2) The "latest" kit from Nitron with their new Suplex springs. They say Quote"They offer superior performance to our previous springs and we have found them to be as good and, in some cases, better than the Eibach springs on our spring dyno tester"Unquote

Also what would be the best spring rates for fast road use, alpine runs and the odd track day?

Would I go for the same rates as on my Sagaris (front = 456lsb/inch and 80N/mm, rear = 400lsb/inch and 70N/mm)

If I remember correctly the Nitron guys suggested 400-450lbs/inch on the fronts and 325-375lbs/inch on the rears. Anyone running these rates or close to them? Or anyone running the new SUPLEX springs?

At the moment I think I've got 200lbs/inch front and 157lbs/inch rear...

[RedSpike66]

Posted on another thread on 22nd June 2012.... some very helpful info and great offer...... read on..

mtapscott said:

Hi all.
I have just returned from LeMans and having seen some really great looking TVRs (and even better sounding in the tunnels on the way down!).

Reading this thread, I would like to put forward an offer to anyone currently running on other manufacturers or OE dampers...

At this point I should probably point out that I am Mark, from Nitron.

So, there are a few comments questioning the real life road / track benefits of the Nitron dampers. As a little background info; we have obviously spent a great deal of time working on these dampers and developing both race and road/track specifications.

To answer some of these questions and possibly to help those on the fence decide, I have asked for a few sets of 'trial dampers' to be assembled. For those that weren't aware - every kit we make is hand built by a single technician working on each kit individually; seeing the build through from the start of assembly to the final stages and dyno testing.

I now have a couple of sets. they have been built from parts that did not pass our QC based on the anodising colour not being quite right ( a few shades different); not affecting the actual dampers function or reliability at all.

I would like to offer anyone interested the opportunity to trial a kit, for free. We will send them out to you with a months grace. We strongly advise that they are fitted and your geo aligned by professionals to get the most out of the shocks; most customers do this anyway but its worth me noting.

You can then openly discuss your experience with the dampers and the significance of the change they make. At the end of the month, you can simply return the kit to us without charge. If you liked the setup, then we would of course be happy to build you a brand new kit, set to the same spring pre-load so that you can hot-swap them onto your car without having to have another geo.

2-way (single adjuster) Nitron NTR shocks RRP £995.00 + VAT. They come supplied complete with bearing spacers and our new Nitron springs (Eibach quality and rate; we no longer offer Eibach as an upgrade as our new springs are that or the Eibach standard but without the additional charge).

If you are interested in taking advantage of this offer, please drop me an email and we will get a kit spec'd for you and your car built up.

Hope this is of interest to some of you.

Cheers!

Mark.

[e-mail]

[GTrr]

If you go for the Nitrons NTR+Eibach springs and have the steering rack raised + use the right geo setup, you will have no more/hardly any bump steer. And best to use harder springs on the Tuscan rear as it sticks out quite a bit.

[glow worm]

If you make your front solid, you will not need dampers , it will not move at all .

Something might break though

Edited by glow worm on Saturday 10th November 09:20

[GTrr]

I did say raise the steering rack ... And the Nitrons give a much better overal stability to the car.

[Filos Hippos]

Walford said:

Running Nitrons with 400 front 325 rear
very happy great fast road set up
gave up on road and track compromise long time ago, for me its one or the other,

Would 450 front and 400 rear on a Tuscan be the same in feel as on a Sagaris.

I suppose it does, wouldn't see why not.

The set-up on my Sag still feels pretty comfortable on long runs so I think I might go for the same spring rates on the Tuscan.

Or should I go a bit softer (400 and 325 eg) and fine tune with the adjustable Nitron dampers?

Decisions, decisions, ...

[m3jappa]

450 fr 400 rear on my gaz mono and like it. Maybe even go a bit harder.

[Filos Hippos]

Chassis definitely cleaner than those doors...

Must be VARLEYHYD's!!!

Walford said:

That is a big question, given the different mounting points on the chassis
maybe Nitron would answer it ?