73 replies to this topic

[Dan r]

I have pauls vx now and am v happy with the set up, have had a couple of vx's before, one standard and another with intrax both geo done by BOT. Have been happy with all of them, however the original bilsteins on my first one were pretty tired.Have you driven other vx's or let someone with a vx or elise drive it as they do feel quite lively compared to normal cars?I'll look for spring rates if you can't remember paul?

[Dan r]

.... I'll go look when I can!

[Nev]

Twitchyness at speed on flat roads like motorways or a-roads etc has very little to do with the coilover, as they are barely moving or doing much as I'm sure you can imagine. The issue in this situation will likely be with your geometry from what you've typed about your setup.

Edited by Nev, 21 March 2018 - 05:20 PM.

[chris_uk]

Unless the spring rates are way too high and the car is just bouncing off the springs.

[Dan r]

450/150 front 550/250 rearJust read your initial post again and sounds a lot more than just lively!I'm sure the guys at BOT will sort it, but have you discussed it with MBR as he may be able to suggest something?Hope you get it sorted without having to spend too much.

[pete-r]

I run 300/425 on my Quantum blacks and they have been brilliant for the 4 or so years fitted. The valving can easily be checked and if needed a Quantum dealer can rebuild and revalve them for I think 100 a corner.

[zeezeebaba]

Had the same skittish issue when I picked up my car last year. It's running on Gaz and was set up by the previous owner to 340r track spec, it was also running to low and the ride was crashy and fidgety on anything bar super smooth roads. I took it to BOT and a height adjustment and geo later it's spot on.

[vocky]

BOT will fix it, they are good guys

[Mattyboi]

 

I'd try the geo changes before buying another set of coilovers. Many people use Quantums with no issues. Start with the the cheap things first.

 

I'm not saying one brand of coilover is better than another but new suspension is going to be ~six times the price of a geo set up. Most people wouldn't be able to split hairs between quantum's and nitron's on the road but they would notice a bad geo set up.

He's had a money back if not satisfied with Nitrons deal. Why wouldn't anyone go with it?

 

 

Because the person diagnosed it over the phone without seeing the car and that might not be the issue. Its like saying "well if I sell you this brand new Exige it will handle better. I'll give you the money back if you dont like it". There are so many other things it could be that saying its coilovers over the phone seems like dodgy sales practice. Fit new coilovers for lots of money, put a geo on at the same time and buyer goes away happy, none the wiser it could have been geo and potentially spending £1200 they didnt need to.

 

If this thread was "I have an engine noise and the man on the phone said I need a new one" the guy would be laughed off the forum.

[james4563]

FYI I'm not going to just buy new coilovers. The ntr 40 are ~£1500 + £210 geo. I'm not made of money.... 😂 I will get the geo checked out first and go from there. Ride height seems too low, possibly adding excessive bump steer, probably I have too much camber all round, and the front toe is out one side in the other. Ill resolve those issues first.

[vocky]

I will get the geo checked out first and go from there. Ride height seems too low, possibly adding excessive bump steer, probably I have too much camber all round, and the front toe is out one side in the other. Ill resolve those issues first.

 

a wise choice

[fiveoclock]

 

 

I'd try the geo changes before buying another set of coilovers. Many people use Quantums with no issues. Start with the the cheap things first.

 

I'm not saying one brand of coilover is better than another but new suspension is going to be ~six times the price of a geo set up. Most people wouldn't be able to split hairs between quantum's and nitron's on the road but they would notice a bad geo set up.

He's had a money back if not satisfied with Nitrons deal. Why wouldn't anyone go with it?

 

 

Because the person diagnosed it over the phone without seeing the car and that might not be the issue. Its like saying "well if I sell you this brand new Exige it will handle better. I'll give you the money back if you dont like it". There are so many other things it could be that saying its coilovers over the phone seems like dodgy sales practice. Fit new coilovers for lots of money, put a geo on at the same time and buyer goes away happy, none the wiser it could have been geo and potentially spending £1200 they didnt need to.

 

If this thread was "I have an engine noise and the man on the phone said I need a new one" the guy would be laughed off the forum.

That's not what was said was it.

Do you not think the person on the phone has seen this dozens of times before and knows how inferior Quantums are. That's quite a claim to make about a well respected specialist (dodgy sales practice) who has offered a no risk trial of some Nitrons which he could return at his decision for a refund. So the choice is take notice of know nothings like you or take notice of someone with a superb reputation and unrivalled knowledge.

[Mattyboi]

Unless the person has mystical powers they cant diagnose something with some many variables over the phone, whoever they are. So my point still stands whether i'm a nothing or not. My point isnt about one brand Vs another or his money back guarantee, my point was around diagnosing an issue over the phone with many simple and cheap possible fixes with an expensive fix.

 

 

"I've spoken with BoT and they advise that the main problem is probably the quantum blacks I have"

 

The issue might be with how the OP worded their post about it but as it stands its written like coilovers were offered as the fix.

Edited by Mattyboi, 22 March 2018 - 11:04 AM.

[chris_uk]

I know from experience also that the quantums are pretty harsh and there have been lots of reports not only on vxs but elises as well.. so knowing this coupled with the information was given over the phone would point to the quantums being the first port of call.. It makes total sence to try a different damper first.. its the quickest thing to change and you would immediatly be able to tell.

[Mattyboi]

I'm happy to stand corrected but not advising a geo reset and a general inspection (given all the advice in this thread) as the first step seems a big leap of faith. Thats also something quick and easy to do.

Edited by Mattyboi, 22 March 2018 - 11:55 AM.

[james4563]

They are happy to do a geo don't get me wrong. They just don't rate the quantums at all and the advise is that the NTR40 is far superior and they have fitted quite a few sets for people who had quantums and were not happy. It's a bit of a lottery though because when I wanted to go from standard to uprated coilovers I spoke in length with Matt who advised to get quantums but generally seemed to be saying either would be great. Then you have another specialst saying quantums are no good.

[MAXR]

another shout out for back on track, they have transformed the handling of my car

???? I presume Joe, by that you mean, when anyone else other than you drives it?😂😂😂😂😂 ...joking aside, (it's really True, but don't tell Joe!) BOT will transform your car and offer you genuine advice with tried and tested solutions. ...Just don't believe the rumours that BOT also make nice tea or offer biscuits! ...Maybe they do, but just for customers they like? 🤔

[Mattyboi]

It's a bit of a lottery though because when I wanted to go from standard to uprated coilovers I spoke in length with Matt who advised to get quantums but generally seemed to be saying either would be great. Then you have another specialst saying quantums are no good.

 

That seems to be the way sadly, I know a specialist that doesnt rate either. I struggled to choose as well but in the end decided to buy which ever popped up second hand first, the argument being I'd need to try and see how I got on.  

[Mattyboi]

They are happy to do a geo don't get me wrong.

 

In that case I've taken your earlier post to literally.

[jonnyboy]

Nothing at all wrong with quantums quite the opposite. As per every application ever it seems you have too high spring rates. When I ordered some for my old Elise they didn't when make the correct spring rate of 300 it had to be ordered in for the front. The rates you have on yours I would say on quantums would be track orientated. Lotus put 272 / 350 on sport option dampers for the S2