All Things Mk5 > Performance Modifications

TT lower arms and geometry changes

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rex:
Carrera2RS what speeds did you do the tests at?
What are your ARB?

With my H&R 26/24 bars I had oversteer quite a few times. Some of the times the road surface had a kink in and that unsettled the car. But on some occasions there was nothing wrong with the road surface... My car just oversteered... I was either mid corner with no throttle or on exit with a little throttle. Once I hit the gas and counter steer on exist the car would settle.

Fuscobal I bet that the weather in Bucharest is not sunny and warm. I also think that you did not have the chance to heat up the rear tires. If you remember our first trip to Hungaroring, in the first corner I had a monumental oversteer (not intended...) because of the cold tires. I think this also played a part in your experiments.

Carrera2RS:
My roll bars are Neuspeed 25mm f and 25mm rear

The speeds were not very high speed corners as there are very few places you can load up to that point. I doubt you would find any opportunity to load up higher on the road.

I also doubt anyone would get the car beyond the limit at higher speeds without notably exceeding the limit, so realistic for what you might expect on the road.

It may behave differently on the track at higher corner speeds. I think your tyre temp point is a good one !

fuscobal:
Yes, of course I keep in mind my tires were not heated. Can't do it around town. Another thing I don't like is my steering rack is starting to make cluncking noises over the bumps and responds with a delay wich increases with the speed ! Might have to replace it soon and this is not cheap. Unless I find one on a totalled car, It will delay my plans of getting the polepositions !

Carrera2RS:

--- Quote from: berg on May 16, 2011, 11:04:30 pm ---what tyre pressures have you settled on as best?

--- End quote ---

With my set up, I have settled on 33.5 R 35F warm. This is after a non sporting drive in traffic this morning 12 miles, the outside tem 10 degrees. The cold temps were 31.5R, 32.5F

I hope this helps  :happy2:

laurent.d:
You shouldn't drive hard a car with coilover set on soft and sway bars set on hard.
Keep in mind that sway bares act like strings. If dampers are set too soft they can't absorb the sway bars energy and then you can get very brutal oversteer.

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