rc-zombies

iTrader: (9)

those are good servos... I've use the Futaba S9451 or the Low Profile S9550 digital servos. the S9550 is great if you need space for your electronics.

loopedeloop

I havent but any little bit of friction reduction has got to help

axel

what springs should i use for a pro4 (stock). I race on carpet. I am currently running stock setups right now.

TFR

iTrader: (11)

Why do you alway ask this kind of question? Why don't you ask somebody to drive the car for you? You can experiment with different springs or set ups at the track instead of just asking other non local with different track surfaces, temperature, grip level and other condition about what springs you need. Why?

fjm9898

iTrader: (11)

is it true the pro4 05 spec is asphalt only? i dont see how... i race on both high grip asphalt and carpet using rubber tires on both. so my question is should i just use a pro4 or the 05 spec becuase from what i am hearing people are saying 05 spec is asphalt only but i need a car that will do both

rc-zombies

iTrader: (9)

the 05 should be good for rubber tires on asphalt and carpet. if you run foams on carpet...then I'd opt for a stiffer thicker chassis.

fjm9898

iTrader: (11)

ok thanks, i was confused because some one else on another thread about what car to get was saying the pro4 05 spec was souly an asphalt/outdoor car which doesnt make any sense

AMGRacer

Can anybody give me some hints on how to go about setting the backlash of the gearboxes? I am using the standard shimming as recommended in the manual, but I seem to be eating front gears fairly regularly.

Snikkari

Hi Guys,

I have a problem.
My rear diff always comes loose!
What can be done about this ?
I know this has been discussed here before, but it seems alot of work to go through 370 pages.

rc-zombies

iTrader: (9)

the Asia version 05 spec car...is more likely ment for asphalt. it has the thinner 2mm chassis... the US/Euro version will have the stock 2.5mm chassis.

fjm9898

iTrader: (11)

Snikkari, there is a new part (diff lock nut) that comes out with the 05 spec that fixes that problem, some shops might already have it so check around

moot

ok guys i need help! i'm giving my pro4 a makeover/freshen up

i use the car on concrete and ashfelt normally with takeoff 27's.i need up much more competitive set-up then what i have now,which is just the box set-up.
i run a trinity 6t d6 flatwire and a keyence rapida pro esc.the car on my local track is and understeering pig

what i'm thinking is getting a 2mm chassis (my ones stuffed) and swaping the one way with a ball diff. does the rear diff fit in the front? is there anything thing else i can do to make it more competitive? (besides from finding some talent )

ATXPro4

iTrader: (4)

I have a question, has anyone tried using the TC3 diff gears instead of the pro 4 ones, they seem to be a lot stronger than the HPI ones, im just wondering if anyone has tried it.

newracer

Is the 2.5mm upper deck out now the same as the one that will be on the 2005 edition?

axel

whats the difference when running the pro4.