dontfeelcold

iTrader: (22)

I started with kit setup (I have the Pro4 2005 spec), Ive tried Take Off 27's, Sorex's, even foams on asphalt, and "the car doesn't react to setup changes". Ive tried running other peoples setups, at the same track, same tyres etc and the car is not working like it should.

I can't visually see something that I have done wrong, even Miura from HPI has checked the suspension and he noticed nothing wrong with it.

cpatel529

iTrader: (80)

Anyone have any HPI pro 4 Hara parts that they are looking to get rid of? I want to get hte motor mount, the shocks, and the front and rear input shafts.

Also what chassis(upper and top deck) should I run for carpet? I heard that the 3.0mm is the best. If so, does anyone have one of these for sale as well? Also am in need of a spool.

Please email me at [email protected]

Thank you in advance.

Chirag

ATXPro4

iTrader: (4)

i would run the 3mm chassis for carpet, also BMI makes a really nice 3mm chassis that works well for carpet, as far as the spool your LHS should be able to get one or u can order it online for about 16.00 USD

rc-zombies

iTrader: (9)

for carpet get the 3mm chassis and upperdeck.
BMI makes a great chassis...unfortunately I sold my set to Axel.
or you can get the HPI 3mm chassis and upperdeck. tower should have those in stock as well as the spool.

Matthew.H

iTrader: (1)

what mm foam and rubber tires are peaple runing

chr15tophe

Hi, whats everyone doing regards running the HPI spool,

how much wear do you notice, do you grease ? or run it dry so dirt doesnt increase wear? a

ny other makes out there that do a decent one, that doesnt wear so quickly ?

Or is everyone just replacing them on a regular basis ?

rc-zombies

iTrader: (9)

to minimize the wear..grease it with the gray grease.
or you can replace the CVD pins with the IRS CVD pin cushions

Marcel

On carpet it depends on the tires which chassisplate you should run. With foam tires you should use the 3mm but with rubber you should use the 2mm plate, it's easier to drive, provides more grip and you won't have any problems with tweak.
Also very nice to drive is when you put 45g lead on your bumber, totally different steering feeling....

ATXPro4

iTrader: (4)

hmm i never thought of the weight on the front thing, any idea how that would work on asphalt? i may try it just for fun this weekend

jace

Can any one recommend 48 pitchg spur/pinion choices for the Pro 4 that suits 19t spec class motors, running on tarmac with rubber tyres?

floodo1

that usually recommends 2.5mm upper deck for carpet

Marcel

We raced allways with the stock upper deck with the "hara mod". With rubber tire this was the fastest combination. Know i'm using the new 2.25mm upper deck from the hara special, but makes now big difference...
Greetz Marcel

Marcel

Hi,
here are some pics of my P4 ready for carpet racing.

Thraex

Car's looking great Marcel.... must be a european!
Never noticed that the new upperdeck was that narrow.

aaronb73

iTrader: (5)

I'm starting to build my hara pro4 and made a decision to use the spool. Is there anything special I should know about when putting that togehter? There aren't instructions for it but it seems rather simple just using the four screws and the new grease. Anything else?