Never heard of it. They are pretty expensive. For that price I'd take Ohlins.

 

pretty pricey, but they do use Eibach & Hyperco springs

 

Quantum, are far I have found out is brand what happens to be on f1, and I am sure it´s good. I just wish to find out, if anyone have experience of them, Nitrons would be an safe option.

 

There are a few people running these in Australia, and more in the UK.
And Quantums are reputed to be good.
I was looking at both Ohlins and Nitrons, but probably (or might) go with Quantums.
I think that the Quantums might have more droop than the other 2.

 

Bit of background....

Quantum have been making dampers for some 25 years, they are not newcomers.

I first started working with Quantum back in late 2006 for the Elise platform, and was immediately impressed with their low speed control and light touch.

in late 2009, Eliseparts launched Quantum Blacks as their premier damper, after extensive testing on both road and race cars.

in the year since they have been launched, Quantum equipped cars have turned in some very impressive results, with Jamie Willson winning the UK time Attack championship outright (in his first year of competitive driving), Marcus Jewell taking several wins in Elise Trophy (including the 1,000Km on one set of tyres), Dave and Tim Mackie taking 1st & 2nd in the Australian Prodsports endurance championship, Chris Headlam pace in Britcar, etc.

One year in, Eliseparts are about to expand the Quantum range in both directions.

 

I'm getting ready to pull the trigger on a new suspension, and I'm torn between the DA Quantums and Nitrons. Anyone tried Quantums yet?

 

Try here

 

Simon,

Are the Japanese offerings also built in the UK?
Quantum Racing Suspension::????? ????? ???????

Is there a US Authorized Dealer to revalve/rebuild/service the dampers?
Dyno test your shocks for 2012 – QUANTUM Racing Suspension

Cheers!

 

I got my Quantum 2 ways from eliseparts back in May last year.
The Quantum 2 ways is self rebuildable and self revalvable.
If u have questions, why don't you contact eliseparts. I've been told that they are the only supplier offer the quantum for Lotus.

Regards,

Bill Li

 

Has anyone in the USA used these? I pm'd Simon, and emailed Quantum's UK office, and have not received a reply from either.

 

I bought mine a couple of months ago (single adjustable) and absolutely love them. I use them mostly on the track but drive occasionally on the street and they are very forgiving, give a great ride and even with double the spring rates of the LSS. All 4 have helper springs on mine, you can order them with whatever you want, but that's what they normally come with.

As for the track:
I always just shook my head to when people said they improved 3-4-5-6 even 7 seconds over the LSS\track pack in their lap times, now I'm one of them. Apparently the lotus shocks suck that much.


I got the set from Eliseparts, they were really quick, I recommend them as well as these shocks.

 

Did you go with the standard spring rates or somewhat higher? Thanks.

 

Wow that's amazing, thanks for sharing, I'll think about Quantum for the next Lotus project.

 

Seven members fron Aussie elise (downunder) have purchased including me.

Simon and Geary (Eliseparts) were very helpful with our group buy. I'm sure there will be some feedback on the Aussie elise forum soon.

If you are interested Simon S does a vid on the droop in 'Which aftermarket springs/shocks to pick for a daily?' thread.

I do understand my aplication is for road use 'Quantum zeros' but the vid posted is a fittment of Quantum Blacks to a Elise S1.

When I have mine fitted I will post a review.

 

Sorry, away from home at the moment so missed the PM

that said, looks like the questions been answered already?

Quantums are all made in the UK, the Elise versions are unique to Eliseparts.

As said, many people make big claims about ZYX dampers, but I can honestly say these are the best there are (like for like) available on the Elise.

Just basic stuff like having full travel available so that you can run whatever ride hight you want without running out of bump or re-bound make a bug difference.

 

The Quantums is very impressive. However, I really hate the way to adjust the bump and rebound. The adjuster is located on the shaft, so you have to either jack up the car and take off the wheels to adjust or run the car on the ramp.

 

Had the Quantum SAs installed by Darin at West End today. Corner balanced and lowered from the lowest Sport Suspension by 1/4 inch. Despite going with more track oriented spring rates of 475/575 fr/rear and helper rates 150/200 fr/rear, the ride is more supple than with the Bilsteins (12 clicks from full stiff on the Quantums). Handles great. Transformed the car once again.

Darin was impressed at the thoroughness of the coilover kit. All hardware, new brackets and little goodies meant for a proper Elise installation were included.

Anyone interested in the Sport Pack coilovers (Bilsteins)?

 

I bought quantum zeros this past summer to replace the Sach's setup I had...

so far so good... the quality looks very nice on these dampers & the adjustment tool for ride height is much more convenient than the typical spanner wrenches

one thing i think that differs between the zeros & the adjustables (single/2way) are that the adjustables come with upper mounting brackets... where the zero's do not (the fronts specifically may lack enough clearance to avoid rubbing the upper perch/shaft)

at least in my experience we had to modify the front brackets slightly to get extra clearance but in hindsight the brackets that were on my Elise could have been Sachs specific (instead of factory)

anyways, for anyone looking into quantum i would absolutely recommend them, especially if you are in the market for a better than stock setup but don't need the fully adjustables... the zeros are pretty much the best bang for your dollar

 

... had to modify the front brackets slightly to get extra clearance

Hello driftwood, I think I have a similar problem w/ the front bracket (passenger side) fitting my coilovers. I'm installing the Nitron Street Series. How did you manage to modify the bracket - did you use a hammer and try to pound out a few extra millimeters of clearance? Or something else, less caveman-like?

 

Do you have a picture of the bracket so that we can determine if it is sach specific ones? Also how is the ride quality compared to stock and what are your spring rates? I'm looking at a set of these or Nitron Street Series 2.

 

the spring rates i went with for the zero's were linear 325lb/f & 400lb/r

i cant compare it to stock since i have never driven my Elise with that suspension setup... but i do know that a linear spring is initially stiffer than a progressive of the same rate. so keep that in mind if you are looking for some added comfort for daily driving (i sacrificed that comfort for the extra bite in spring stiffness)

as far as pictures... here is a similar explanation but with nitrons dampers instead of quantum (same procedure though)

here is the location of the bracket already mounted...

here is a comparison of the 2 different brackets (new & old)...

see how the dampers outter tube (right where it says nitron) is very close clearance to the sides of the bracket? well that clearance is non-existent when using the factory brackets which is what I ran into

I expanded my stock brackets enough to get clearance... but regardless of what damper you go with, just keep in mind that those brackets for the front could be necessary so double check that those are included before you order

 

I'll probably grab a set of these since the spring rates are much higher. These are only height adjustable correct? Where did you buy from?

 

yes, the zeros only adjust height

i bought mine from eliseparts... think i sent you a pm a few days ago with some more details?