M140i Improve Handling
Discussion
take-good-care-of-the-forest-dewey said:
Seriously, go visit someone like centre gravity.
You're likely going to end up spending a lot of money randomly experimentingvwith parts, which may or may not help. With the greatest respect, you don't appear to understand what effects the parts you're considering will actually have.
You do have a good idea how you want the car to feel - speak to someone who can translate that into meaningful changes to the car.
What im looking for in the car wont be fixed by an alignment......You're likely going to end up spending a lot of money randomly experimentingvwith parts, which may or may not help. With the greatest respect, you don't appear to understand what effects the parts you're considering will actually have.
You do have a good idea how you want the car to feel - speak to someone who can translate that into meaningful changes to the car.
An alignment wont reduce body roll, an alignment wont help turn in if camber is non adjustable, stiffer bushes in the control arm will surely provide more steering feedback? Caster isent adjustable either.
I dont think there is much adjustment available as standard on the m140i thats the issue.
Powerflex do sell camber adjustable control arm bushes but i hear these are prone to fail due to their highly stressed location?
Edited by inline6bmwfan on Tuesday 5th July 08:19
inline6bmwfan said:
What im looking for in the car wont be fixed by an alignment......
An alignment wont reduce body roll, an alignment wont help turn in if camber is non adjustable, stiffer bushes in the control arm will surely provide more steering feedback than some caster.
I dont think there is much adjustment available as standard on the m140i thats the issue.
Powerflex do sell camber adjustable control arm bushes but i hear these are prone to fail due to their highly stressed location?
Companies like CG don't just do alignment though. They're chassis tuning specialists. Call them. They can only say not interested.An alignment wont reduce body roll, an alignment wont help turn in if camber is non adjustable, stiffer bushes in the control arm will surely provide more steering feedback than some caster.
I dont think there is much adjustment available as standard on the m140i thats the issue.
Powerflex do sell camber adjustable control arm bushes but i hear these are prone to fail due to their highly stressed location?
take-good-care-of-the-forest-dewey said:
inline6bmwfan said:
What im looking for in the car wont be fixed by an alignment......
An alignment wont reduce body roll, an alignment wont help turn in if camber is non adjustable, stiffer bushes in the control arm will surely provide more steering feedback than some caster.
I dont think there is much adjustment available as standard on the m140i thats the issue.
Powerflex do sell camber adjustable control arm bushes but i hear these are prone to fail due to their highly stressed location?
Companies like CG don't just do alignment though. They're chassis tuning specialists. Call them. They can only say not interested.An alignment wont reduce body roll, an alignment wont help turn in if camber is non adjustable, stiffer bushes in the control arm will surely provide more steering feedback than some caster.
I dont think there is much adjustment available as standard on the m140i thats the issue.
Powerflex do sell camber adjustable control arm bushes but i hear these are prone to fail due to their highly stressed location?
take-good-care-of-the-forest-dewey said:
Seriously, go visit someone like centre gravity.
You're likely going to end up spending a lot of money randomly experimentingvwith parts, which may or may not help. With the greatest respect, you don't appear to understand what effects the parts you're considering will actually have.
You do have a good idea how you want the car to feel - speak to someone who can translate that into meaningful changes to the car.
This times lots. You're likely going to end up spending a lot of money randomly experimentingvwith parts, which may or may not help. With the greatest respect, you don't appear to understand what effects the parts you're considering will actually have.
You do have a good idea how you want the car to feel - speak to someone who can translate that into meaningful changes to the car.
I’d also highly recommend String Theory in Stratford.
Both have done really good work on my cars in the past.
Alignment is just part of the process... But also, for e.g.
Ride height
Roll centre
Corner weighting
Damper settings C+R if adjustable.
Spring rates
Camber / castor changes
ARB adjustment.
Track alterations
+ associated advice on how to achieve if outwith OEM adjustability. Even things like an ill judge polyp Bush can ruin handling if it's in the same system as OEM bushing as you change loadings.
Badically depends on how much you want to spend.
As I said, call one of the respected companies, explain issue, see if they can sort within your budget.
Ride height
Roll centre
Corner weighting
Damper settings C+R if adjustable.
Spring rates
Camber / castor changes
ARB adjustment.
Track alterations
+ associated advice on how to achieve if outwith OEM adjustability. Even things like an ill judge polyp Bush can ruin handling if it's in the same system as OEM bushing as you change loadings.
Badically depends on how much you want to spend.
As I said, call one of the respected companies, explain issue, see if they can sort within your budget.
take-good-care-of-the-forest-dewey said:
Alignment is just part of the process... But also, for e.g.
Ride height
Roll centre
Corner weighting
Damper settings C+R if adjustable.
Spring rates
Camber / castor changes
ARB adjustment.
Track alterations
+ associated advice on how to achieve if outwith OEM adjustability. Even things like an ill judge polyp Bush can ruin handling if it's in the same system as OEM bushing as you change loadings.
Badically depends on how much you want to spend.
As I said, call one of the respected companies, explain issue, see if they can sort within your budget.
The thing is im not looking for my car to be perfectly track ready and it sounds like them places you are saying to contact are for really fine tuning the car, im just looking for slightly improved handling on the road.Ride height
Roll centre
Corner weighting
Damper settings C+R if adjustable.
Spring rates
Camber / castor changes
ARB adjustment.
Track alterations
+ associated advice on how to achieve if outwith OEM adjustability. Even things like an ill judge polyp Bush can ruin handling if it's in the same system as OEM bushing as you change loadings.
Badically depends on how much you want to spend.
As I said, call one of the respected companies, explain issue, see if they can sort within your budget.
Also, ride height, corner weighting, damper settings, spring rates, camber/castor are all none adjustable on my car.
Im purely looking for some more feedback from the car and less body roll, hence the suggestion of solid mounting the rear subframe (like m cars are, but not the diff to keep NVH down), and possibly polybushing the front control arm and fitting some anti roll bars?
inline6bmwfan said:
The thing is im not looking for my car to be perfectly track ready and it sounds like them places you are saying to contact are for really fine tuning the car, im just looking for slightly improved handling on the road.
Also, ride height, corner weighting, damper settings, spring rates, camber/castor are all none adjustable on my car.
Im purely looking for some more feedback from the car and less body roll, hence the suggestion of solid mounting the rear subframe (like m cars are, but not the diff to keep NVH down), and possibly polybushing the front control arm and fitting some anti roll bars?
It does sound a bit like you are just looking for someone to say "yes good plan" to what you are suggesting. The better solution is to talk to a company that can give you an answer to your question or suggest other things that might work better. Like Centre Gravity, who could actually advise you on what is possible, for your car, within your budget. Also, ride height, corner weighting, damper settings, spring rates, camber/castor are all none adjustable on my car.
Im purely looking for some more feedback from the car and less body roll, hence the suggestion of solid mounting the rear subframe (like m cars are, but not the diff to keep NVH down), and possibly polybushing the front control arm and fitting some anti roll bars?
For what it is worth I'll add my recommendation for Birds - they upgraded my 340i to full B3-40i spec and it improved the car in every measurable way, without compromising it's on-road capabilities. It was cheap at £5k.
inline6bmwfan said:
The thing is im not looking for my car to be perfectly track ready and it sounds like them places you are saying to contact are for really fine tuning the car, im just looking for slightly improved handling on the road.
Also, ride height, corner weighting, damper settings, spring rates, camber/castor are all none adjustable on my car.
Im purely looking for some more feedback from the car and less body roll, hence the suggestion of solid mounting the rear subframe (like m cars are, but not the diff to keep NVH down), and possibly polybushing the front control arm and fitting some anti roll bars?
I give up. You said just a geo change won't help... I then explained the things specialists CAN advise on to give you an idea. And their advice will be based on whether you want a b road ca... A road... Or track toy. Also, ride height, corner weighting, damper settings, spring rates, camber/castor are all none adjustable on my car.
Im purely looking for some more feedback from the car and less body roll, hence the suggestion of solid mounting the rear subframe (like m cars are, but not the diff to keep NVH down), and possibly polybushing the front control arm and fitting some anti roll bars?
The bit may be non adjustable, but their advice might be to fit something that offers some additional adjustability.
Your clearly looking for an echo chamber as the last post suggests. I'm out... go and buy a load of different shore value bushes and random suspension bits, bolt them on, and see how you get on.
take-good-care-of-the-forest-dewey said:
inline6bmwfan said:
The thing is im not looking for my car to be perfectly track ready and it sounds like them places you are saying to contact are for really fine tuning the car, im just looking for slightly improved handling on the road.
Also, ride height, corner weighting, damper settings, spring rates, camber/castor are all none adjustable on my car.
Im purely looking for some more feedback from the car and less body roll, hence the suggestion of solid mounting the rear subframe (like m cars are, but not the diff to keep NVH down), and possibly polybushing the front control arm and fitting some anti roll bars?
I give up. You said just a geo change won't help... I then explained the things specialists CAN advise on to give you an idea. And their advice will be based on whether you want a b road ca... A road... Or track toy. Also, ride height, corner weighting, damper settings, spring rates, camber/castor are all none adjustable on my car.
Im purely looking for some more feedback from the car and less body roll, hence the suggestion of solid mounting the rear subframe (like m cars are, but not the diff to keep NVH down), and possibly polybushing the front control arm and fitting some anti roll bars?
The bit may be non adjustable, but their advice might be to fit something that offers some additional adjustability.
Your clearly looking for an echo chamber as the last post suggests. I'm out... go and buy a load of different shore value bushes and random suspension bits, bolt them on, and see how you get on.
Im not asking for the car to be the best handling track weapon ever, im asking how will certain mods affect the car, i.e. ARB's, polybushes, i dont understand why its being made to be way more complex that it needs to be.
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