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Car Is Way Too Bouncy


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#1 booshtukka

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Posted 29 January 2015 - 08:11 AM

Hellooo.

 

I had some Turbo Gaz Nickels fitted (to my n/a) that I got off dashwood. The car is now stupid bouncy; after some bumps there'll be like four bounces before she settles.

 

Yesterday, I went over a speed bump (a bit too quick) and the bounce tore my license plate off! It looks much better, but I will probably have to replace it. (Does anyone know a loophole to get black plates?)

 

Anyway. I'm wondering:

 

1) Is it possible the garage have fitted the shocks the wrong way round? If so, would I see this behaviour? How do I tell?

 

2) If not, what kind of adjustments should I be making?

 

Apologies for having no idea what I'm doing, as usual! :)

 

AK



#2 Ormes

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Posted 29 January 2015 - 08:14 AM

I'd start with softening the damping adjustment and checking tyre pressures first.

#3 Mopeytitan

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Posted 29 January 2015 - 08:18 AM

Not sure they would've put them on wrong way the rears are longer so probably wouldn't for (don't quote me on that? By bouncy do you mean.. If you push down on the car it will carry on rocking for a bit? If so I would've thought they'd be set too soft? My Nitrons are rock hard and if you push down the car shoots back to rest position and doesn't move. Would try adjusting the damping as above...

#4 mbes2

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Posted 29 January 2015 - 08:29 AM

Count how many clicks on the adjuster, I think older gaz nics had 40+ clicks, newer ones only 20+, set all to soft (- setting) front and back then go for a drive.

 

Go +5 front , +10 rear then go for a drive

 

Depending on the feel, add +2 click front and back

 

I used to run Front 9 Rear 13 (but mine have 40 odd clicks)

 

 

Check http://www.gazshocks.../fitting-advice for a better understanding

 

Have fun


Edited by mbes2, 29 January 2015 - 08:30 AM.


#5 Stevie Dubyah

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Posted 29 January 2015 - 09:16 AM

... and be aware that when the amateur mechanic starts to play with the adjustment on these things, life rapidly ceases to have any meaning...

 

 



#6 Rosssco

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Posted 29 January 2015 - 10:01 AM

Your suspension is from a Turbo, hence possibly slightly higher spring rates. Add to that that Gaz nickles probably don't have the best damping, may mean they just aren't suited to you ~50kg lighter NA.. Up the damping rate to help control rebound and see if that helps. It then probably just be very stiff and ride poorly..



#7 christhegasman

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Posted 29 January 2015 - 10:55 AM

If the springs are rated for a turbo you might want to try some correct rated ones as the one you have are designed to cope with a lot more weight

#8 TheRealVXed

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Posted 29 January 2015 - 11:15 AM

Fat turbos thumbsdown



#9 fezzasus

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Posted 29 January 2015 - 11:16 AM

Spring rates between the turbo and NA (at least using the OEM suspension as a guide) are not that different, I would be much more inclined to say the dampers are fcuked.



#10 TheRealVXed

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Posted 29 January 2015 - 11:20 AM

Spring rates between the turbo and NA (at least using the OEM suspension as a guide) are not that different, I would be much more inclined to say the dampers are fcuked.

 

 

I would agree with Fezz to be honest.  fcuked/set wayyyy too soft.

 

 

 

 

Fat turbos thumbsdown



#11 mbes2

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Posted 29 January 2015 - 11:26 AM

 

Spring rates between the turbo and NA (at least using the OEM suspension as a guide) are not that different, I would be much more inclined to say the dampers are fcuked.

 

 

I would agree with Fezz to be honest.  fcuked/set wayyyy too soft.

 

 

 

 

Sexy yet Fat turbos thumbsdown

 

 



#12 christhegasman

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Posted 29 January 2015 - 11:27 AM

Ok I understood that an na with turdo springs sits waaaaaay high so assumed to get the ride height down they would need a massive adjustment on the shocks

#13 fezzasus

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Posted 29 January 2015 - 11:36 AM

Ok I understood that an na with turdo springs sits waaaaaay high so assumed to get the ride height down they would need a massive adjustment on the shocks

 

I don't think that's the case. The dampers are all exactly the same, the front springs are the same and the rear (iirc) are 25 ib/in stiffer. The only suspension i'm aware of which makes the car sit much higher is Exige suspension, because both the dampers and springs are different.



#14 christhegasman

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Posted 29 January 2015 - 11:41 AM

Ok bow to your experience but thought there was a thread in here last year where the op was asking why his na was so high at the back Think that Turned out they had fitted turdo rear shocks but not 100% sure of that now

#15 Rosssco

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Posted 29 January 2015 - 03:43 PM

Adjust the damping up as first port of call - if this makes no difference, then yep, the dampers are fcuked..



#16 pete-r

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Posted 30 January 2015 - 09:17 AM

Within reason the spring rating won't matter. The dampers stop the springs from oscillating, so if the car bounces they aren't doing it. If the shocks are adjustable (don't know much about the GAZ stuff) then wind them all up to full hard and as mentioned above, pick a number of counts back and soften them. Then drive the car and see.

If they are too stiff the car will end up lowering itself because the springs will be overpowered, too slack and you'll get the bounce you described. Go slightly firmer on the rear because of the weight of the engine. And apart from the odd one click up or down, if your in a mess start over to full hard setting and count back again, then write it down when your happy.

This is what happened to my car when the shocks were set too stiff lol took about 20 mins for the springs to settle.

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I used to have a road and track setting written down so I knew if I got into a muddle, but after a while I managed to get one setup which does it all.

If your struggling I would go say 6-8 from full and see if the bouncing stops which shows your shocks aren't stuffed, and then book the car into a specialist who can set them up for you properly and make any other fine adjustments.

Edited by pete-r, 30 January 2015 - 09:20 AM.


#17 booshtukka

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Posted 30 January 2015 - 04:07 PM

Thanks everyone. Loads of detail here. I'll have a play tomorrow, and see how I get on.






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