Nitron spring rates

[OM VT3]

Does anyone know what the best spring rates are for a full coilover conversion nitron kit I have an ess kit on the car so a bit of extra weight at the front and arh headers

[Leglessracing]

I'm running 120 front and 160 rear, but that all depends which track I'm at and the weather

[italyix]

Running 450 front and 550 rear. Step up to 500/600 or even 550/600 if you are heavier. Leave the fine tuning to the shock valving

[OM VT3]

Originally Posted by italyix

Running 450 front and 550 rear. Step up to 500/600 or even 550/600 if you are heavier. Leave the fine tuning to the shock valving

Nitron recommend to go softer in the rear

[italyix]

Originally Posted by OM VT3

Nitron recommend to go softer in the rear

Depends on what your set up is. Street or track. I have spring to suit more of a track oriented build. For street I would do 450-500 rear. I try and stick to a 50lb difference between front and rear. But that's my personal opinion

[OM VT3]

Originally Posted by italyix

Depends on what your set up is. Street or track. I have spring to suit more of a track oriented build. For street I would do 450-500 rear. I try and stick to a 50lb difference between front and rear. But that's my personal opinion

They said its much better to go softer in the rear 570 front and 400 rear

[italyix]

Originally Posted by OM VT3

They said its much better to go softer in the rear 570 front and 400 rear

Unless you corner weigh your car and calculate the proper spring rates for your purpose, it's all a guessing game.

[OM VT3]

Originally Posted by italyix

Unless you corner weigh your car and calculate the proper spring rates for your purpose, it's all a guessing game.

My car would be similar to stock weight extra weight in the front with the blower but it's only about 20lbs I looked into it.

Not really sure why you would go more spring in the rear it's only there to hold the weight of the car and the shock does the work also think it would cost
Make the rear oversteer easier

[italyix]

Originally Posted by OM VT3

My car would be similar to stock weight extra weight in the front with the blower but it's only about 20lbs I looked into it.

Not really sure why you would go more spring in the rear it's only there to hold the weight of the car and the shock does the work also think it would cost
Make the rear oversteer easier

More spring in the rear offsets the fact that the motion ratio is different than the front. While the front achieves an almost 100% spring rate usage, the rear in stock configuration is a about half, while coilover is about 70-80% IIRC. Plus you also want a 10% rear stiffer rate to offset bump transfer from the front.

[OM VT3]

Originally Posted by italyix

More spring in the rear offsets the fact that the motion ratio is different than the front. While the front achieves an almost 100% spring rate usage, the rear in stock configuration is a about half, while coilover is about 70-80% IIRC. Plus you also want a 10% rear stiffer rate to offset bump transfer from the front.

They tell me that's incorrect and not what all the guys do that go Nurburgring

[italyix]

Originally Posted by OM VT3

They tell me that's incorrect and not what all the guys do that go Nurburgring

Interesting. I'd love to pick their brains about that. All the info I read points to this way of setting up suspension. :/

[OM VT3]

Originally Posted by italyix

Interesting. I'd love to pick their brains about that. All the info I read points to this way of setting up suspension. :/

Just send them an email and see

[OM VT3]

I know on the new 488 the rear end goes soft in the corners to help the car out the power down

[italyix]

Ok so interesting find on an E46 CSL set up by Nitron in EU. The owner was provided 800lb front springs (which I also originally ran in my setup but found them super harsh) and the rears (true coilover) spring rate was 530 (I'm currently running 550 with true coilover). I might throw my front 800 back in and see how it feels, have a track day on May 19 and might as well.

[OM VT3]

Originally Posted by italyix

Ok so interesting find on an E46 CSL set up by Nitron in EU. The owner was provided 800lb front springs (which I also originally ran in my setup but found them super harsh) and the rears (true coilover) spring rate was 530 (I'm currently running 550 with true coilover). I might throw my front 800 back in and see how it feels, have a track day on May 19 and might as well.

Yeah may aswell have a play around! How much do they charge just for the springs?

[italyix]

Originally Posted by OM VT3

Yeah may aswell have a play around! How much do they charge just for the springs?

Springs are cheap, they use 60mm ID and they are made by Eibach Germany with the nitron blue color sprayed on. The helper springs are 2.25mm not the traditional 2.5mm, ask me how I know lol.

Springs are $80 a piece plus shipping from U.K. If you can't find the same rates by Eibach USA.

[OM VT3]

Originally Posted by italyix

Springs are cheap, they use 60mm ID and they are made by Eibach Germany with the nitron blue color sprayed on. The helper springs are 2.25mm not the traditional 2.5mm, ask me how I know lol.

Springs are $80 a piece plus shipping from U.K. If you can't find the same rates by Eibach USA.

That's not bad doesn't cost to much to play around with spring rates

[italyix]

Originally Posted by OM VT3

That's not bad doesn't cost to much to play around with spring rates

Not at all

[OM VT3]

Originally Posted by italyix

Not at all

I can't wait to get these kW clubsports off and get nitrons see the difference