Hi All,
I would recommend JACKSONS FORD for HUNTER ROAD FORCE BALANCING. They are a nice family run business (listed on the balance my car website). They're just off the M40 in Henley in Arden so nice and centrally located.
Ask for Dan Jackson (brother of Mat Jackson - TOURING cars driver) he really knows what he's talking about and has a skilled workshop guy on the Hunter equipment (unlike another Garage with Hunter road force kit I tried previously).
I had tried unsuccessfully to sort out vib issue with normal balancing and actually COSTCO Derby had done a good job on a conventional machine - I asked them to try to get to zero imbalance and they had achieved it, but the vib was not solved.
I took the car in and the initial results for the front wheels & tyres were:
NSF inner 0g imbalance, outer 0g imbalance but high RFV (radial force variation) of 100N
OSF inner 0g imbalance, outer 0g imbalance and even higher RFV of 115N
Wheel lateral and radial runout was measured and wheels were good (they should be as only approx 1000 miles old)
Dan Jackson said it was the first time he'd had a car in with 0g imbalance on both wheels/tyres on the initial measurment, but the RFV was marginal and mainly coming from the tyres. They remounted the tyres (MPSS) to reduce the RFV by carefully 'timing' the tyres to the wheels.
Result was NSF 0g imbalance inner & outer but RFV reduced to 20N, and OSF 0g imbalance but RFV down to 10N (zero RFV would be perfect but in practice would never be achieved as it depends so much on the tyre radial stiffness).
Hey presto - vibration solved , so my issue was not balance as even with 0g imbalance the vib was there when I took the car in, it was high RFV that was causing the vibration ! (Dan thought that the tyres may not have been seated too well on the wheels when they were fitted as normally MPSS are good tyres)
Quoted cost was £30-£50 per wheel depending on level of stripdown and adjustment required. Its the best £90 I've spent this year as the vib was driving me nuts!
If you go, mention the RS3 Forum - I told him I'd say what a great job they'd done
Edited by Caveman, 09 August 2014 - 05:45 AM.