Everyone has their own voodoo. This is my voodoo. This is what works for me.
*New voodoo is added as it becomes available.
Allow me to preface my fix, mod and upgrade posts by stating:
First off – I’m no expert.
Secondly, my posts are primarily for people on tight budgets that want to race a reasonably tight car on the cheap.
Having said that, I continue…
The HPI Sprint 2 Sport is a great ‘entry level’ RC race car for the neo-RCer on a budget whether you want to bash, drift or race on road.
The S2S does have potential.
With a little time and minimal out of pocket (considering you have the necessary tools on hand) and a few upgrades, like carbon fiber shock towers and competition shocks, the S2S can be enhanced enough to allow you to run with the big dogs & perhaps pee on the taller trees once in a while on race day.
There are several posts on the internet by people that have tackled the steering slop and other issues on various forums. However, what I have found is that these posts rarely if ever cover everything that needs to be done, should be done, nor do they list the parts w/part numbers necessary to complete the tasks.
My goal is to bring the dots closer together and help close some of those gaps.
Finally - By no means is this the only way to accomplish tightening up or upgrading the S2S.
LINKS TO SPRINT AND SPRINT 2 MANUALS -ADDED 03/18/2013:
NOTE:
All these links worked at the time I posted them.
http://www.hpieurope.com/manuals/pdf/323.pdf
http://www.hpieurope.com/manuals/pdf/714.pdf
http://www.hpiracing.com/graphics/in...130/106130.pdf
http://www.hpiracing.com/manuals/pdf/106149.pdf
http://www.hpiracing.com/graphics/instr/pdf/106159.pdf
http://www.hpieurope.com/manuals/pdf/100424.pdf
http://www.hpieurope.com/manuals/pdf/101553.pdf
OTHER
Instructions for RS4 Sport =
http://www.hpiracing.com/instructions/instruct-s.htm
Instructions forRS4 SPORT 2 =
http://www.hpiracing.com/instructions/instruct-s2.htm
SOME MORE MANUALS HERE =
http://www.hpieurope.com/instructions.php?lang=en
EDIT 06/27/2014: INDEX TO VOODOO / MODS COMING SOON
Everyone has their own Voodoo.
This is my Voodoo.
This is what works for me.
Until I find better Voodoo.
ALL voodoo is welcome here.
FIRST MOD
Rear Belt Tensioner Mod
Get yourself another front belt tensioner
HPI #86041.
NOTE:
I used a 4-40 Allen head screw instead of the self tapping screw that comes in the tensioner package. I found this easier to screw in & out.
So drill your slot holes according to which screw you decide to use. I also used an old shock piston for a washer - just because.
I used the same angle as the motor mount slots for my belt rear belt tensioner slot.
I measured 5/16" from the center line of the motor mount brace screw and down from the edge of the motor mount so that when drilled my 1st hole would be 1/8" from the edge of the motor mount.
I center punched for the top & bottom holes so that when finished, my slot would be 5/8" long.
I scribed my line from the top center punch to the bottom center punch.
I drilled the top & bottom holes - Following my scribed line, I center punched the next hole down so it will overlap the top hole then drilled the hole. I repeated this until all the holes were done.
Next I took a flat modeler's file and removed the excess metal until I had a slot.
Milling the slot is a lot easier & faster - if you know someone with a milling machine - have at it.
Click on thumbnail for larger picture -
