The 2007 edition of the HPI Winter Champs and HPI Challenge will be held at the Whalan circuit in Sydney, Saturday 30 June and Sunday 1 July.

Friday 29 June will be practice day.

Saturday 30 June will be GP day, Sunday 1 July will be EP with the exception of the HPI Challenge which will be held on Saturday 30 June.

The winner of the HPI Challenge will receive a trip to Bangkok to compete in the HPI All Asia Challenge Finals series on December 14-16.

GP classes will be Nitro Tourer Open and Nitro Tourer Pull Start with no cross entering allowed.

The same rules for the Team Orion Summer Nats Nitro Tourer Pull Start class will apply for the HPI Winter Champs.

The GP day is a round of the Nitro Interclub Series (see www.pdnracing.org.au for more information).

EP classes will be Stock, 19 Turn and Modified.

The HPI Challenge will be controlled motor, LRP 17 Turn as per usual. This motor is supplied to all entrants free of charge.

For all EP classes, control tires will be used. They will be Sorex 36R, Sorex Medium C Insert and Pro-Line Wheels (Cat No. #2650-44). They will not be pre-mounted.

Drivers need purchase only one set of tires/inserts/wheels at the time of entry. An additional set can be purchased up to the third qualifying round while all A Finalists can purchase a third set if required prior to the start of the first leg of the A Final.

Only GP, IB and LRP NiMh cells can be used (up to 4300mAh).

LiPo packs can be used for the 19 Turn class (as per Team Orion Summer Nats), only Team Orion, TrakPower and LRP LiPo packs can be used. No brushless motors allowed in 19 Turn.

LiPo users note – no additional time will be allowed for charging, it will be your responsibility to be at the grid for the scheduled start of your race.

Brushless motors can be used in Stock. Only Novak SS13.5/Pro/EX13.5 and LRP #50631 13.5T brushless motors allowed in this class.

The entry form will be posted later this week.