G'day Mitch,

Yes I have 20t pinions in stock

my nuber is 0420998186 too FYI

wow i dont know what to say man....sounds perfect! thanks heaps for looking out for me. i would love to race 17.5! i will bring my iron, but its only a cheap 80watta from supercheap...what time should i rock up? or time you will be there in the morning?

Hey Dude, you could race 17.5 Stock instead, I've got a motor you can use, and we can sort gearing out no worries.
I've got your transmitter and program box as well, thought that they were yours after we saw them on the table at the end of the day

Yah towmba is ages away man! Can not believe you travel that far to race!

21t pinion probably won't be too bad, as I certainly wouldn't suggest running with much boost or turbo (if any!) whilst starting out with mod. I'm gonna keep an eye on the weather over the next couple of days to see what looks more promising...

Tyre wise, you want the Ride 26006, which we all call Ride 36 Red. The number actually relates to the temperature range they are suitable for, not the size. Most TC rubbers are similar in diameter, just the rubber compound is harder than the 32 or 28. The Red 36's work very well at Logan.
(btw, the Red bit refers to the moulded insert in the tire, which is more suited to outdoor racing. Ride also offer the same tyre with soft foam insert, these are the Ride Blues, also called LT)

Gearing wise, the 84 spur will be fine, but I would suggest getting a 20t pinion, as the 25 will be too big for a modified. I would suggest a FDR of around 8.4 - 8.0 for modified (smaller number is taller gearing = slower acceleration, but higher top speed).
The car's internal ratio is 2.0, to get the FDR, need to use the following;
(Spur/pinion)*Internal ratio = FDR
so... (84/20)*2 = 8.4

HiH

I'd be happy to solder it up for you, I've got a decent 100W iron that does a rather nice job. I'm not sure if I will be there now this weekend though... toss up between racing stock up here in T'wmba, or heading down to race at Logan... honestly, depends more on what the weather threatens!

Mate I had a quick run one afternoon and all seemed perfect I was monitoring my my temps and all good! Next day I turned on the car and the esc was not responding to the motor it's a brand new esc too! I contacted the guy I brought it from and he could not find recipts and its out of warranty I also contacted hpi in US and would be costly to repair ect... I wouldn't mind just stepping up to the 10.5 class but that combo is in my budget.