Hey all, as i work at a tyre shop that sell Dunlop/Goodyear i can save a significant % on a set of tyres and being into Motorsport how could i go past a set for the zed? the tyres available to me are Dunlop DZ03G, which come in 215-255 (17inch) and soft med'and hard. the question is... What is the best option for me, or what do i take into account when choosing sizing and comp's? How do you decide on what tyre is best for you? or is it all just trial and error? some details to help out Track only Will be used in hill climbs and circuit racing (sprints?) Car is NA manual (140kw?) 2+2 currently on 225 H1 tyres Thanks Ben
The DZ03 are a good semi slick for track days or racing. Go with the medium compound, soft will wear out too quick, and hard will last longer but not as much grip.
Well no, application, weight and power sets tyre size and the wheels should be sized to suit. For an N/A zed I would be thinking 225 or 245 all round for a medium compound. You don't want to be over tyred...not enough slip.
There's a big gap between wakefield and the like and most hillclimbs, you'll probably find the mediums lack grip at the climb but softs will toast very quickly at wakefield and other high speed tracks.
In an ideal world I'd agree with this, but most motorsport applications will have regulations and restrictions on what you can run, not too mention the individual's budget on needing to purchase different sized rims. I think 225's would be too narrow for the weight of the zed. I'd be going minimum 245's on 8" rims, 265's on the rear if you have 9's.
Getting 1 tyre to cover all tracks is going to be near? impossible so i'm looking buying the new set for my holiday to vic in November- Phillip island, Winton and Sandown which hopefully will be 2 weeks full of racing and im happy to blow through a set while im down there. the 3 tracks look? to be fairly fast pace tracks (correct me if im wrong) so maybe go for comp's and sizes for that? happy to choose other tyre brands budget around the $1k mark for the set i was thinking 245 M comps all round (so i can rotate to increase life) the rim size sat 245 re050s fairly flush so could push bigger? but ill measure them up tomorrow Ben Edit - ill also find out session durations through-out the next few weeks
DZO3G's are a good choice at the right price, they are usually a bit expensive compared with say Hankooks. Mediums for circuit work, softs for hillclimbs.
Actually, what I should have said is "are you purchasing new wheels" because if not, the rims you have will effectively set the tyre width. If you are going to purchase wheels, the next step is to decide whether you want to go square (same size all round) or wider at the rear if you are going to power-up in the future. 245 all round is a good starting point, then 245 F and 265 or 275 R. I run 265 square on my Z34 and have run 245F and 265R on my Z32 in the past. Lots of good oil here about compound depending on whether they need to service hillclimbs as well as sprints as a soft for hillclimb will not survive a sprints, especially at PI which is "very hard" on tyres. There are lots of stories about RF tyre failure at PI coming onto the straight, so I'd even be thinking about a Hard compound if you are going to PI, unless you are prepared to take it easy onto the straight. Hankooks are cheaper than Dunlops and they are a compound harder that most other makes according to folk-lore (I have no experience so no comment from me either way). The DZ03 in 245/40R17 is a smaller overall diameter tyre (625mm) but 253mm tread width. Lower diameter helps with CoG and ought to make the car point a bit more, more tread width for grip, and which needs a minimum 7.5" rim-width 235/45R17 is a taller tyre with ~645mm diameter so taller sidewall which will make the car a bit softer on turn, BUT only has 236mm tread width, which also needs a minimum 7.5" rim. For me, I have a preference for lower overall tyre diameter because the car is lower without excessive lowering which can cause compromised suspension arm angles.
