9.5J in the front

[alexk]

What is your opinion about 9.5J in the front ?

Does this has a negative effect on the steering rack by any chance ?


Cheers

[shane@mbtech]

What is your opinion about 9.5J in the front ?

Does this has a negative effect on the steering rack by any chance ?


Cheers


I ran 9j on 265 35 18, and had no issues,

It helped front end grip no end, but did cause some "tramlining effect", but that was no issue.

Others say it will affect the bearings, rack etc, but I ran 9j 265 35 18 for a long time with no issues whatsoever.

[glendog74]

What is your opinion about 9.5J in the front ?

Does this has a negative effect on the steering rack by any chance ?


Cheers

This is what i will run on track next year :whistle: ;)

[DuncanR]

T$ will respond soon with his ..."hair dryer" solution to wheel arch rubbing !! :hahaha:

[alexk]

This is what i will run on track next year :whistle: ;)

What wheels mate ?

I am considering to get a set of BBS CH-R for the next season :drool:

[DuncanR]

What wheels mate ?

I am considering to get a set of BBS CH-R for the next season :drool:
Oooooo ! T$ will defo respond !!!:thumbs:

[shimmy]

This is what i will run on track next year :whistle: ;)

I think you are running 9.0J next year. Inferior specification!

[englebert]

Are we talking about the rear CSL wheels on the front? Are they 9.5J?

[shimmy]

I trialed 9,5J on front using rear CSL rims but two issues!

1. Offset means it is almost impossible to run less than -3 camber. Even then they are tight on the outer arches

2. Stock wheel was a little heavy for my liking especially rear up front

[glendog74]

What wheels mate ?

I am considering to get a set of BBS CH-R for the next season :drool:

I have BBS E88 wheels with machined hubs to match E46 offset :thumbs:

[alexk]

I have BBS E88 wheels with machined hubs to match E46 offset :thumbs:

:notworthy::notworthy::notworthy::notworthy::notwo rthy::notworthy:

:partyman:


Did you get this set from Italy/Austria that was for sale here ? Or brand new ?
If brand new, can you share the price pls ?
:beer::beer:

By far the best wheel for the CSL !

[Dan]

I have BBS E88 wheels with machined hubs to match E46 offset :thumbs:

That's stunning! When and where did you get these from Rob!? :supz: :smokin: :thumbs:

[TANKSLAPPER]

T$ will respond soon with his ..."hair dryer" solution to wheel arch rubbing !! :hahaha:


Duncan just calm down and wait a little :blalalala:

T$

[TANKSLAPPER]

Oooooo ! T$ will defo respond !!!:thumbs:


In my own time....................:whistle:


T$

[TANKSLAPPER]

BBS ch 19 x 9,5” et 40 with a 12mm spacer giving et of 28mm with a 265 cup tyre. This will be within 2mm of your KW clubsport springs.

Negative points
You will need to borrow “Glendogs” :smt055 hairdryer to stop the plastic lining form touch the tyres on full lock.

Maximum speed through the Foxhole is 140MPH, the out tyre hits the front part of the outer front wing.

Slower track time on the Ring and spa due to drag and over steer.

Positive points

Faster lap times on shorter twister circuits

Longevity of the front tyres.

Looks like” Duncan” A little over weight or short fat & round lol :smt055


T$

[shimmy]

T$

i can understand why the set up might not be ideal for the Ring but cant see why oversteer would produce slower times. Surely the point of oversteer is no different as the rear tyres still have the same grip, its just reducing the understeer making the oversteer the first point of lack of grip, but still therefore at a slightly later point

Is ti the fear of oversteer slowing you down?

[TANKSLAPPER]

T$

i can understand why the set up might not be ideal for the Ring but cant see why oversteer would produce slower times. Surely the point of oversteer is no different as the rear tyres still have the same grip, its just reducing the understeer making the oversteer the first point of lack of grip, but still therefore at a slightly later point

Is ti the fear of oversteer slowing you down?


You can turn in faster, slower on the power on the exit = steering corrections tyre scubbing + loss of BHP

slower on the exit = slower down the straight = slower times.

Short twisty circuits = short straights nothing lost.;)

T$

[shimmy]

You can turn in faster,
T$


you dont have to turn in faster:smokin:

if you turn in the same you have less understeer and no greater oversteer so times (from corners) will be the same.:supz:

[glendog74]

Did you get this set from Italy/Austria that was for sale here ?

Yes mate ;)

I have yet to mount the wheels but i am looking forward to trying these next year! Hopefully the car will retain the standard car balance without the oversteer effect that TANKSLAPPER mentions as these wheels keep the normal 'staggered' setup of the car as the rears are wider than the fronts :whistle:

[TANKSLAPPER]

you dont have to turn in faster:smokin:

if you turn in the same you have less understeer and no greater oversteer so times (from corners) will be the same.:supz:

so what the point of driving slower on turn in

wider tyres = more drag less top speed.

square set up is not the fastest way on fast circuit. It just gives you longevity making the fronts last as long as the rears.

The best set up is 245/255 fronts because they fit properly with 285 rears. Then you can just listen to the chassis around the bends creeking and moaning as the g goes through her lol :thumbs:

No V box lite required. :hahaha::hahaha::hahaha:

T$

[shimmy]

so what the point of driving slower on turn in


T$

because you numpty you said the lap times were slower because you were existing quicker and loosing grip coming out!

you will not corner slower but you may not be adjusting your driving to suit the set up properly

you may find straights a bit more challenging but with -3 camber i doubt youllhave any more drag

psycological me thinks

[DuncanR]

Yes mate ;)

I have yet to mount the wheels

Pictures of that fooker please !:gayfight:

[DuncanR]

psycological me thinks
gynological im thinking !! :whistle:

[TANKSLAPPER]

because you numpty you said the lap times were slower because you were existing quicker and loosing grip coming out!

you will not corner slower but you may not be adjusting your driving to suit the set up properly

you may find straights a bit more challenging but with -3 camber i doubt youllhave any more drag

psycological me thinks


Before calling me "numpty" you should read my post properly :birdman:

Doesn't really matter WHY it will be faster or slower as long as I can see the difference on the stop watch.

There isn't a set up which suit all ;)

T$

[alexk]

Yes mate ;)

I have yet to mount the wheels but i am looking forward to trying these next year! Hopefully the car will retain the standard car balance without the oversteer effect that TANKSLAPPER mentions as these wheels keep the normal 'staggered' setup of the car as the rears are wider than the fronts :whistle:

Well done :thumbs:

I like the CH-R wheel...
The problem is that the rear one is 10.5J :(

BTW, I am convinced not to put wider front wheels. :thumbs:

[glendog74]

The problem is that the rear one is 10.5J :(


Mine also :hahaha:

[shane@mbtech]

There isn't a set up which suit all ;)

T$


This:thumbs:


I prefered the 265 35 18 all round set-up and it made me faster, or was that just my driving improving and infact, if I went back to 235 front I would be faster still? Who knows.

But as T$ says, each to their own.
I dont listen to other people now if im honest, I go and try for myself. Ill consider different views, but I wont take them as gospel.

The wider front tyre for me helped with understeer, I did drive tailhappy at times, but that was majority of the time intentional. If in the mood and really pushing on, the car was planted.

The extra drag of a 265 over a 245/255 will not alter the straight line speed to a noticeable amount, the difference will be negligible IMO. The corner exit speed was far more important. And the wider front helped me get a better corner exit thus improving my straightline speed.

The car was more twitchy with the wider front, maybe T$ in the same one armed boat as me, struggled with this? I dont, but I am very physically strong.




One thing to note, is that most of our cars were on different tyres, different tracks, different wheels, different suspension, different tyre pressures, different conditions, different geo/set-up, and most important different drivers.

My advice try for yourselves, small changes wont kill you but they may make you slightly faster/slower than before.

[alexk]

Mine also :hahaha:


So the slick set is gone, the BBS CH will be sold next week.

CH-R it's 10.5J on the back. I don't know why BBS made them so wide, shall I guess American-pimp-my-ride-style ?

Do you put 265 on this rim ?

[shimmy]

So the slick set is gone, the BBS CH will be sold next week.

CH-R it's 10.5J

Do you put 265 on this rim ?

depends on thr tyre Alex, some are wider at the lip than others eg 265/30/19 Cups are recommended on 9.0-10.0 only.

Check the manufacturers tables. I doubt insurers would look kindly on out size Tyres after a prang.

[glendog74]

So the slick set is gone, the BBS CH will be sold next week.

CH-R it's 10.5J on the back. I don't know why BBS made them so wide, shall I guess American-pimp-my-ride-style ?

Do you put 265 on this rim ?

I have a pair of 285s to try - i may have to add a little more negative camber at the rear, however!

If that will not work i will try 275 which should be ok.

[alexk]

The other option is rear CH-R 9.5J ET32 and I will have to put a 12mm spacer.

The offsets of BBS are a bit different than the OEM CSL wheels.
The front BBS CH that I have go out about 10mm compared with the standard CSL wheels....

A picture of these beautiful wheels...
http://www.bbs.com/_images/company/ch-r_silver.jpg

[shimmy]

guys, i should have Tracktoys at Snetterton on the 6th March so all you guys that are interested we can get Matt to do some Pyro testing on your differenyt rims and tyres to see what pressures and cambers you should be running:thumbs:

[alexk]

guys, i should have Tracktoys at Snetterton on the 6th March so all you guys that are interested we can get Matt to do some Pyro testing on your differenyt rims and tyres to see what pressures and cambers you should be running:thumbs:

I use a laser temp meter that I have (I mainly use it for my RC engines to check temp and adjust the mixture) to measure the tyre temp.

[shane@mbtech]

guys, i should have Tracktoys at Snetterton on the 6th March so all you guys that are interested we can get Matt to do some Pyro testing on your differenyt rims and tyres to see what pressures and cambers you should be running:thumbs:

Ill give matt a try, get my optimum tyre pressure on the old jap scrapper:thumbs:

[shimmy]

Ill give matt a try, get my optimum tyre pressure on the old jap scrapper:thumbs:

Yep, I'll make sure he gives you best advice! ;)

[titan]

I had hoped to have gotten a set of team dynamics 9x18 all round but it seems td have given up casting wheels, so I'm told.

I wouldn't do 9.5 front what's the point, you can't fit a bigger tyre so you're just adding weight to the wheels.

[shimmy]

I wouldn't do 9.5 front what's the point, you can't fit a bigger tyre so you're just adding weight to the wheels.

has your mate who knows better told you :hahaha:

[titan]

No, that was two separate people who race in the csl cup. What do they know eh.

[shimmy]

No, that was two separate people who race in the csl cup. What do they know eh.


Not alot probably

I mean why would BMW waste that weight with 265 Tyres and 9.5j rims on the rear when someone from CSL cup knows better.

[TANKSLAPPER]

Not alot probably

I mean why would BMW waste that weight with 265 Tyres and 9.5j rims on the rear when someone from CSL cup knows better.


I mean why would BMW reduce the weight with 235 Tyres and 8.5j rims on the front when someone from CSL Register knows better lol :blalalala:

:thumbs::thumbs::thumbs:

T$

[shimmy]

I mean why would BMW reduce the weight with 235 Tyres and 8.5j rims on the front when someone from CSL Register knows better lol :blalalala:

:thumbs::thumbs::thumbs:

T$
http://zenstoves.net/Pots/GreasePot.jpg

http://kettle-kitchen.co.uk/images/Morphy%20Richards%20Splash%20of%20Colour%20Q%20Ele ment%20Kettle%20Burgandy.jpg

http://www.marver.gr/pict/granitis/zimbabwe%20black.JPG

[glendog74]

I wouldn't do 9.5 front what's the point, you can't fit a bigger tyre so you're just adding weight to the wheels.

Yes, but you manage to stretch more of that tyre onto the road/contact patch surely?

My wider 18's are still lighter than the OEM 19's anyhow so i'm not overly concerned :smokin:

[TANKSLAPPER]

Yes, but you manage to stretch more of that tyre onto the road/contact patch surely?

My wider 18's are still lighter than the OEM 19's anyhow so i'm not overly concerned :smokin:


What are your wheel sizes and offsets ?

T$

[_Nathan_]

Given the regs say you have to run narrow tyres on the front in CSL Cup I'm not sure what relevance there is?

What tyres does the intersport car run?

http://www.racecarsdirect.com/listing/34191/BMW_M3_CSL.html

10" wide all round with 250 wide slicks.

Fastest narrow body e46 M3 in the UK? Got to be up there hasn't it.

[glendog74]

What are your wheel sizes and offsets ?

T$

Front: 18 x 9.5J (ET+41)

Rear: 18 x 10.5J (ET+28 )

Wheel face machined to suit E46 M3 offset.

[northernjim]

Yes, but you manage to stretch more of that tyre onto the road/contact patch surely?

My wider 18's are still lighter than the OEM 19's anyhow so i'm not overly concerned :smokin:

I wouldn't have thought so Rob, wouldn't it just alter how the sidewall reacts to the tarmac, a stiffer ride, more direct steering feel and a faster breakaway....

(my other job is writing the fiction that appears on wine bottles)

You need to get some pics up of your new wheels on the car Rob, we're not really bothered about your contact patch

Given the regs say you have to run narrow tyres on the front in CSL Cup I'm not sure what relevance there is?

What tyres does the intersport car run?

http://www.racecarsdirect.com/listing/34191/BMW_M3_CSL.html

10" wide all round with 250 wide slicks.

Fastest narrow body e46 M3 in the UK? Got to be up there hasn't it.

the wider fronts negate the natural understeer of the standard wheels correct?



That lovely racecar is built for the track, the csl is built for road first then track - different objectives imo

[TANKSLAPPER]

Front: 18 x 9.5J (ET+41)

Rear: 18 x 10.5J (ET+28 )

Wheel face machined to suit E46 M3 offset.

Have you fitted them on yet

photo's please

T$

[glendog74]

Have you fitted them on yet

photo's please

T$

Not yet Ian - there's a pic of them fitted to the previous owners CSL here:

http://www.cslregister.com/forum/showpost.php?p=73618&postcount=10

[TANKSLAPPER]

VERY NICE

They look the same as LM'S to me.

T$

[alexk]

VERY NICE

They look the same as LM'S to me.

T$

They look AMAZING :thumbs:

[TANKSLAPPER]

I bought a set of BBS LM's a few months ago 18x9.5J & 18X8.5J

They are much lighter than the OEM


3478

[baldydaz]

I bought a set of BBS LM's a few months ago 18x9.5J & 18X8.5J

They are much lighter than the OEM


3478


how many sets is that now TS?????

[glendog74]

VERY NICE

They look the same as LM'S to me.

T$

They are similar in style - E88s are 3-piece race spec wheels not designed for regular road use.

LM are 2-piece wheels suitable for road use iirc.

http://www.bbs-racing-wheels.com/seiten/htm.txt/e88e.htm

[Yanto]

Fookin hell, 6 pages of wheel size chat.....

I LIKE EM ALL COZ THEY'RE SHINY !

:thumbs:

[glendog74]

Fookin hell, 6 pages of wheel size chat.....

I LIKE EM ALL COZ THEY'RE SHINY !

:thumbs:

:hahaha: :hahaha: :hahaha:

[Bounce]

Fookin hell, 6 pages of wheel size chat.....

I LIKE EM ALL COZ THEY'RE SHINY !

:thumbs::hahaha::hahaha:

[TANKSLAPPER]

Fookin hell, 6 pages of wheel size chat.....

I LIKE EM ALL COZ THEY'RE SHINY !

:thumbs:

And they do chrome spinners for them now! :hahaha::hahaha::hahaha:

T$

[TANKSLAPPER]

how many sets is that now TS?????


41/2 sets :smt055:smt055

T$

[DuncanR]

Have you fitted them on yet

photo's please

T$ I know where this fooker is going !!!!! :hahaha: