All Things Mk5 > How to Guides / Troubleshooting
(update) Standard GTI on 17s , (update) Harsh crashy ride with knocks creaking.
GTiBlues:
I meant standard GTI shocks above.
btowery:
I’m a former IMSA racer, now Chief Instructor at Chin Motorsports the largest presenter of track days in the Southeast USA.
The suggestions above are all on the right path for resolving your issue, which--as you have come to realize--is probably going to require shocks. Nevertheless, the bushings were probably shot as well and, seeing that, you technician probably made a good call, in spite of its not curing the symptom that took you first noticed. Odds are, the two things are interrelated.
As to your decision about 17" wheels, I believe it to be sound. I do a lot of track days in my MK5. For tracking your car, 17" wheels are good for these related reasons: 1) running a 235X45 17, I'm putting a lot of rubber on the ground with minimal weight (as you probably know, unsprung weight is the most costly to performance)--my OZ 8.5" Alleggerita wheels weigh just over 16 lbs each; 2) the taller sidewall gives me a lot of pneumatic adjustment; the easiest at track set up change for a busy day at the track with no crew; and, finally, but not last in importance, 3) 17" tires are significantly less expensive.
GTiBlues:
--- Quote from: btowery on April 28, 2015, 12:25:46 am ---I’m a former IMSA racer, now Chief Instructor at Chin Motorsports the largest presenter of track days in the Southeast USA.
The suggestions above are all on the right path for resolving your issue, which--as you have come to realize--is probably going to require shocks. Nevertheless, the bushings were probably shot as well and, seeing that, you technician probably made a good call, in spite of its not curing the symptom that took you first noticed. Odds are, the two things are interrelated.
As to your decision about 17" wheels, I believe it to be sound. I do a lot of track days in my MK5. For tracking your car, 17" wheels are good for these related reasons: 1) running a 235X45 17, I'm putting a lot of rubber on the ground with minimal weight (as you probably know, unsprung weight is the most costly to performance)--my OZ 8.5" Alleggerita wheels weigh just over 16 lbs each; 2) the taller sidewall gives me a lot of pneumatic adjustment; the easiest at track set up change for a busy day at the track with no crew; and, finally, but not last in importance, 3) 17" tires are significantly less expensive.
--- End quote ---
Always wondered about sticking 235 tyre on as the 225 looks slighty stretched. I drive hard through Devon B roads and do feel the lack of tread grip. Thought a 235 tyre might be too big for the standard 17's.
cooljimy84:
--- Quote from: GTiBlues on April 29, 2015, 09:26:41 am ---
--- Quote from: btowery on April 28, 2015, 12:25:46 am ---I’m a former IMSA racer, now Chief Instructor at Chin Motorsports the largest presenter of track days in the Southeast USA.
The suggestions above are all on the right path for resolving your issue, which--as you have come to realize--is probably going to require shocks. Nevertheless, the bushings were probably shot as well and, seeing that, you technician probably made a good call, in spite of its not curing the symptom that took you first noticed. Odds are, the two things are interrelated.
As to your decision about 17" wheels, I believe it to be sound. I do a lot of track days in my MK5. For tracking your car, 17" wheels are good for these related reasons: 1) running a 235X45 17, I'm putting a lot of rubber on the ground with minimal weight (as you probably know, unsprung weight is the most costly to performance)--my OZ 8.5" Alleggerita wheels weigh just over 16 lbs each; 2) the taller sidewall gives me a lot of pneumatic adjustment; the easiest at track set up change for a busy day at the track with no crew; and, finally, but not last in importance, 3) 17" tires are significantly less expensive.
--- End quote ---
Always wondered about sticking 235 tyre on as the 225 looks slighty stretched. I drive hard through Devon B roads and do feel the lack of tread grip. Thought a 235 tyre might be too big for the standard 17's.
--- End quote ---
** Assumption here **
So drifters run stretched width tyres, so that the when transitioning between drifting one way and the other they break traction easier. (usually compensating with a higher sidewall number)
Going on that a 235 on a wheel for a 225 would give move flex. This might would make the daily driver less aware of bumps in the road, as the tyre has move flex/movement, another side affect might be better wet/cold weather handling as the tyre can move a bit more.
That said as you change direction you might it a bit slower to react as one side of the tyre goes from compression to tension.
I would think that this wouldn't be too noticeable unless you did a side by side tho....
PLEASE CORRECT ME IF THIS IS WRONG (as its a good way to learn)
raven8472:
Well having my Front Shocks, Top mounts Replaced along with drop links the ride is much better. The bad news is the knocking sound from the drivers side is still present and having put the car on a low loader to inspect how the car is sitting with its weight mechanic has stripped the steering rack partly and diagnosed the noise as the actual rack.
A Mount or bush inside the rack is causing the noise, rack is working but with the knocking sound.
So options are 1) Brand new Rack , loads on money 2) OEM Pattern part much cheaper but questionable quality or 3) try my luck on Ebay. Not sure on part numbers but cars between 2007-2008 are available.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version