Driving fast corners 4 pot.

[Jhonno]

What about Continentals Si?

[Simon13]

Barry likes them conti 3's is the one at the mo? they come in the right size as he has them on his pina rims. Could be worth a go. Clio sports etc have them standard too

[Jon_Bmw]

Siyermon, can you run 15's or will they not clear the calipers?

You have lots of wheels, can you not find a part worn set of r888's and chuck them on, and in the boot on the pina? Swap once you get there. Best of both worlds?

[SUMPCRACKER]

Conti sports are good wet and dry, had em on a 911, but they do wear quick.

[Jhonno]

I would actually be really interested to try a well set up 4 pot to compare to my S50'd turd..

No contest really

You'll have got to the corner, oversteered round it, and booted it off down the next straight before the 4 pot gets to the corner & nimbly drives around it

So true...

[bss325i]

Conti sportcontact 2's and now 3's rock wet or dry but they are a road tyre.

Held up resonably well on the S50 on track.

[ian332isport]

Avon ZZ3's any good?

No idea, but ZZ1's were down right dangerous

[bss325i]

Avon ZZ3's any good?

No idea, but ZZ1's were down right dangerous

+1!

[Jhonno]

Avon ZZ3's any good?

No idea, but ZZ1's were down right dangerous

+1!

+2

I had ZZ3's.. Fine for road use. Not as good as Toyo's

[SUMPCRACKER]

R888's come in most 16" sizes.
(scroll down for sizes)

http://images.google.co.uk/imgres?imgur ... N%26um%3D1

[Bob_S]

I'm with Ian on the Bridgestone front I was running 205/50/15 RE040s on my 24v'er and they are kin superb!
They are maybe a touch dearer but worth it for sure!

As for the 4 and 6 pot personally I think the 4 pots understeer more the 6's are far more planted and also have the clout behind them, My m52 feels lighter than the m50 and m20 i have had

[Boyraceruk]

ZZ3s have a lot of grip initially but no warning of when they'll lose it. I had them on 18s on my E34 and they were unbelievably good on the brakes. Turn in too sharp and they just glide over the road surface though, they need a very gentle hand.

[Morat]

Does the extra weight at the back of a touring make any appreciable difference in the setup, si?

[bramley]

I may well have the driving style of the 325 all wrong, but i have always enterd a tight corner with bags of understeer

Why would you choose to repeatedly drive in a way that induces "bags of understeer"?

[appletree]

I would actually be really interested to try a well set up 4 pot to compare to my S50'd turd..

No contest really

You'll have got to the corner, oversteered round it, and booted it off down the next straight before the 4 pot gets to the corner & nimbly drives around it

So true...

Unless its boosted, cant say ive felt much understeer in mine at speed, sometimes a little bit at lowspeed when not realy breaking and then using alot of lock, like turning in to a side road quick off a 30limit, or sometimes when parking

Running H&R roll bars, eibachs -40, M3 TCAs and B8s

[lenny-d]

the best tires I ever had were Pirelli Asymmetricos (sp) but I could only get them for the rear so I stopped buying them, I did like the Bridgestone so3s though

[ian332isport]

Unless its boosted

Boosted is different. You'll be similar for the first few corners, then the turbo lets go...

[e301988325i]

Understeer can be caused by the front tyres not getting warmed up as quickly as the rears. Adding toe in warms the tyres slightly, I'm running 3mm toe in at the front and it doesn't understeer.

[fuzzy]

I would actually be really interested to try a well set up 4 pot to compare to my S50'd turd..

No contest really

You'll have got to the corner, oversteered round it, and booted it off down the next straight before the 4 pot gets to the corner & nimbly drives around it

that would definately depend on which 4 pot...

[Dezzy]

In all the trade mags and all the performance tests the toyo r888 is the top tyre for track use. It is by far the best road legal tyre for the track. In the most reicent test i read the only tyre that came close was a yoko that wasnt even for the road. It was a motorsport tyre. The r888 is a motorsport tyre for the road and its amazing. Thats what i will be fitting for the ring next summer.

[Jhonno]

There is much better than the 888 out there.. Might cost a bit more, but last longer with the same grip..

[Simon13]

Morat i think that the extra weight over the back helps no end. Weight is the enemy though. Tourings are less snappy than saloons but the way to drive them fast is different to a saloon. I've found them a bit easier to control once the limit is breached and your going sideways!

Hmmmmm Jon! Believe it or not but a 15bbs rim does fit over the alpina big brakes! just bit bloody tight...............Theo did say he'd lend me a set for this trip for a few laps see just how good they are!

[Jon_Bmw]

They are the way forward, well full slicks are really, but they arn't a bad second.

Just be careful when you go back to normal tyres. The difference is fairly large!

[Simon13]

no go Theo thinks i'll muller them, which is probably true if i get going round there with them!

Do you know what the T1-R's aren't that bad and i know they'll last alot of laps with a break between each lap. They'll go off but they have done me proud and i'm no racing driver anyhow, i don't want to get the red mist and bend the touring after all that work!

[SUMPCRACKER]

I may well have the driving style of the 325 all wrong, but i have always enterd a tight corner with bags of understeer

Why would you choose to repeatedly drive in a way that induces "bags of understeer"?

Its not a choice, if a corner is entered fast then the car will understeer, as 6pot E30s understeer quite a bit anyway it happens on most tight corners aproached fast, obviously its not an issue on long sweepers.

[SUMPCRACKER]

Does the extra weight at the back of a touring make any appreciable difference in the setup, si?

IMO the touring is not as hyperactive when it lets go, the saloon cars are more instant.

[Barx325i]

ZZ3s have a lot of grip initially but no warning of when they'll lose it. I had them on 18s on my E34 and they were unbelievably good on the brakes. Turn in too sharp and they just glide over the road surface though, they need a very gentle hand.

that's going to be because you were running 18's ..so probably a pretty low profile to match. The lower the profile, the less the tire can roll, which massively sharpens the traction breakpoint so yes a gentle hand is needed!

I don't rate zz3's, they just look good, imo

I used to run a 325, bilsien sport dampers, eibach pro spings for about 2 years. I used 205.50.15s toyo t1s's, come rain and shine and they were absolutely sensational - muddy or icy roads were a walk in the park. I used to be a loooon, but it was easy with this setup..

Currently run an iS, with 7.5 ronal LS's, 205.55 t1r's all round. I really wasn't happy with them to start with as I upsized from 50 to 55 profiles..

Acceleration suffers a bit obviously but after driving around I soon got used to them. When they're warm, hard cornering is back on the fun list & you can play to your hearts content. My current trick of choice is getting her out propper sideways under heavy braking for t-junctions etc.. It's the most worrying for other roadusers too (edit: this might not be advised for none rear disc equiped cars )

55 profiles are too balloon like for a 6 pot - way too much tire wall roll.. It was the first thing I changed on my 325, 15" bbs and the lower 50 profile. t1r's just happened to be cheap, and tweekies highly reccomended them at the time & I since never felt the need to use anything else..

For an iS I'd say a toyo T1r, 205.55's is v.good.. Good feel all the way through hard cornering, and no fear of excessive tire roll as the front end is much lighter than the 6!

The only thing I wouldn't recommend with 55 profiles in an iS, is letting off and lapsing concentration, for no real reason, just as the road straightens, with your mate in the car , because your're trying to impress him, still doing 80+ and the road hasn't quite finished being bumpy, albeit straight. It was farily worrying split second..

As for driving style, I just have to keep turning with the iS, as I remember in the 325, it favoured, tiny throttle lift and in more extreme cases, a dab of left foot braking for moral support.

With the 4 pot, my advice is to just experiment with various turnin techniques & rates I guess. Tire pressures also are cruicial.

[andyp]

Ask Henry (bozzo) if PYF had understeer, nice and neutral. It went where you pointed it!

He just said that car was a weapon round there, but imo i think you need to take it out of second gear, he just said fcuk the pina bring bac the shed.

[Bob_S]

Gav, are you running with the back lower than the front? my 6's have always been much better than 4 pots (excluding the obvious - eh Barkley, no complaints on certain left hooker!!). To actually push the front out on my m52 is difficult and it's not like I'm not trying.

[SUMPCRACKER]

Indeed it was bob, but-
Done a few mods yesterday and today, will post some pics later- lets just say following some advice on here has made it better.

Had the TRACKING set again,with a tad of TOE IN, shocks replaced with good used SPORT SHOCKS, kept the eibach rear springs and changed the fronts- no idea what they are but they are Much better and give a NOSE DOWN stance. (had them for a few years-came on a 323)
Getting some POLY ROLL BAR BUSHES later,(which will not help with the underster issue)
It now is more progressive and has less roll, a lot easier to drive.
Now the front is a bit lower its got a bit more CAMBER as well.
With the same corner entry speed its now quite a smooth turn in
Thanks chaps.
When the bushes are fitted il do a vid.

[SUMPCRACKER]

What is a good front tyre pressure for a 205/40/17?
How much are neg camber top mounts?

I need to lose the BKs, and get some sticky 16s- 9j?

[pac1982]

I was surprised to find out how well my 318IS handled, you can really throw it in to corners and even if the back end does step out you can grab it back very easy.

[SUMPCRACKER]

Front is now lower,nose down, but less bouncy,more progressive.

You can see the adjustable platforms removed from the front on the floor in this pic,they dont fit the new spring diameter


The front legs have camberd a bit now, this must have helped? Depending on the cost of neg top mounts, i may just re drill the turret tops.


The previous understeer may be down to rock hard front susp and the front sitting quite high with little movement, so the front could not dive to increase camber and the only give was the tyres.
Before-

[Barx325i]

Gav, are you running with the back lower than the front? my 6's have always been much better than 4 pots (excluding the obvious - eh Barkley, no complaints on certain left hooker!!). To actually push the front out on my m52 is difficult and it's not like I'm not trying.

I guess the m52 is in your lazur shell now, so have the shocks, springs & arb's bedded in nicely now? It was fresh out of the box as I last witnessed..

an iS takes more effort to keep pace, but it's huge fun on short runs. The 325 feels like an agile express train. Much more relaxing as the torque allows your right foot to do more of the talking - you can drive in a hurry for 40 miles, get out and feel like you've just been around the corner.

Your 4 pot Bob is a different ball game..

[AlexBaur325]

i used to live in MK and my B25 chariot was my daily...my first "spare trousers" moment involved a roundabout in MK...and some rain...

happy days