Polyurethane Suspension Bushings
#21
#22
#23
That sounds more like a damping problem. Have you considered upgrading? I'm not even sure what's out there, to be honest (I've got the two-position adjustable). Perhaps Bilstein has something? They cured the floatiness in my previous car very nicely.
#24
KW has some coilovers but they're running around USD 2.6K. Poly bushings would be around USD 500 but I'm not sure how bad the labour costs would be..
#25
I looked at Bilstein's catalog and they only have OE replacement. If they had the B8 for the F-Type that would be a strong choice, but no such luck.
The following users liked this post:
ss23 (11-12-2017)
#26
If the damping is wrong for the spring rate, no bushings will solve the problem. You might go from floaty to harsh and floaty.
I looked at Bilstein's catalog and they only have OE replacement. If they had the B8 for the F-Type that would be a strong choice, but no such luck.
I looked at Bilstein's catalog and they only have OE replacement. If they had the B8 for the F-Type that would be a strong choice, but no such luck.
#27
At first you were complaining of the vehicle feeling floaty and now you're saying you want it more planted in a straight line. Those are different problems, so what specifically are you looking to fix here?
#28
1) The car bounces when driving over minor bumps e.g. driving over an expansion joint on a bridge above 75 mph feels like I've just gone airborne..
2) You can feel the car wiggling massively during straight line acceleration. Doesn't feel planted at all. I'm not expecting the car to feel like a drag monster but it's a bit unnerving.
3) Body roll during the corners. Can hardly notice a difference between a Maserati Quattroporte GTS and my F-Type.
I would like to add that my base car is heavily modified (both pullies, 200 cell cats, Eventuri intake, VAP tune but does have MPSS tires) and has an open differential so that could be part of my problem, although I would say that I hardly ever push the car to its limits, just some spirited driving here and there.
#29
Open diff certainly isn't contributing to this. I don't know the rates of VAPs springs, but they appear to be progressive and based on their experience in the industry I don't think they would screw things up this poorly... at the very least no one has complained of these issues on VAP springs to my knowledge. Points 1 and 2 almost sound like something is broken if the issue is as severe as you say. While the dampers are not tuned for these new springs, they should be able to control expansion joints and minor bumps without severe impact to your spine. Is the feeling the same with the suspension in comfort mode?
As for number 3, stiffer sways could help, yes. But you don't want to go too far and get understeer/oversteer. Keep in mind that the Maserati is no slouch; its not like your comparing the f-type to a pickup truck.
As for number 3, stiffer sways could help, yes. But you don't want to go too far and get understeer/oversteer. Keep in mind that the Maserati is no slouch; its not like your comparing the f-type to a pickup truck.
#30
Open diff certainly isn't contributing to this. I don't know the rates of VAPs springs, but they appear to be progressive and based on their experience in the industry I don't think they would screw things up this poorly... at the very least no one has complained of these issues on VAP springs to my knowledge. Points 1 and 2 almost sound like something is broken if the issue is as severe as you say. While the dampers are not tuned for these new springs, they should be able to control expansion joints and minor bumps without severe impact to your spine. Is the feeling the same with the suspension in comfort mode?
As for number 3, stiffer sways could help, yes. But you don't want to go too far and get understeer/oversteer. Keep in mind that the Maserati is no slouch; its not like your comparing the f-type to a pickup truck.
As for number 3, stiffer sways could help, yes. But you don't want to go too far and get understeer/oversteer. Keep in mind that the Maserati is no slouch; its not like your comparing the f-type to a pickup truck.
Maybe I exaggerated a little bit regarding going air borne on the expansion joints but it definitely causes a lot of movement, which can be a bit scary when driving at 75 mph.
I asked my local tuner to drive the car today and even they mentioned the floatiness is a problem (before proceeding to try to sell me some KW coilovers). Hence why I am interested in polyurethane bushings as a much cheaper alternative to coilovers for tightening up the suspension
#31
#32
That does not surprise me. In standard suspension mode, the H&R springs create a "floaty" effect (insufficient dampening). In dynamic mode, however, the suspension is dialed in perfectly. I always drive in dynamic mode.
#33
#34
#35
I always drive with the dampers in Dynamic and I have stock springs. It's close to what it should be, although I wish I had separate compression and rebound damping adjustment. I'd like to go up a click on rebound, but I don't have clicks
#37
I would like to add that my base car is heavily modified (both pullies, 200 cell cats, Eventuri intake, VAP tune but does have MPSS tires) and has an open differential so that could be part of my problem, although I would say that I hardly ever push the car to its limits, just some spirited driving here and there.
#38
On other forums I've seen people talk about coilovers like they are the answer to everything, but I don't see it that way. When I was racing bikes, people would brag about their shiny, new 27-way adjustable shocks. The problem is that the more adjustments you have, the more wrong combinations there are.
It'd be nice if someone made a replacement shock for the F-Type that paired nicely with the lowering springs we already know work well.
#39
#40
Here's the solution. For the V6S RWD, use the shocks from a 2015 RWD V8R. That's a stiffer shock to support the heavier weight. Might be just right for the higher rate H&R springs (maybe too much for the VAPs, but I don't really know without detailed specs on springs and shocks)