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.

INSERT VERCOE AND FISHER COMPLAINTS HERE LOL

Just composing a list

In 19 turn will the weight limit be dropped at all so the cars do not need 200 grams of lead on them ?

Anyone interested in a HPI Pro HARA kit, a few runs old, just needs tx/rx and fuel $300. cheers

Cool! Might be in for this

that would be penalising drivers with nimh, no?

As contact has mentioned above about races not being held up for lipo uses, i would suggest atleast getting two lipo's for the meeting if you are thinking of running them. I have tried with one but could not find enough time between heats to allow for battery cooling and recharging.

Cheers
Scott

Sounds like it will be alot of fun....
Ill be there!

As far as I believe the weight limit will be 1525 (including transponder) for all EP classes.

As Scott says too, highly recommend getting 2 LiPO packs for racing. However... with how much runtime you get you could almost get away with two runs in 19 turn with a 4800-5000mah LiPO (not that I've tested that theory).

Hmm i doubt it would make it, i use about 2800 a run i think

Actually just looking at my chargers they only put in 2200-2400 so they might last although i dont know how lipos fade compared to nimhs.

They dont You will find they will hold voltage until they are almost flat, then they will drop all of sudden to nothing.
Usually though you would set up a voltage cutoff to stop the motor etc when the volts fall below a pre-determined level in order to protect the cells.

I have yet to experience Lipos myself, so all this is just passing on what I have heard, and my experience with Lipos used in other electronic devices.

Yeh, you definately want to play it safe and get a speedy (or module) that has a LiPO mode or voltage cut off. I know the LRP Sphere speedies come out of the box in NiMH/Lipo Mode (with voltage cut off) and I think that some of the later Novaks have them, so best to be safe with LiPos.

HPI eh? the R40 might have to make a trip out to whalan for this one

Well i would say so but that would be the reason for allowing lipo in the first place no ? To try to introduce a new era of racing as the we have seen with the rules for previous winter nats. If you cannot get lipo's there are other classes to enter