rs4 rtr3 electronics questions

[wrench234]

i have an hpi rs4 rtr3 and i was wanting to upgrade the steering servo
but i am not sure which one to go with there seems to be many choices
any suggestions on this,also i was wondering if there is a rechargeable battery pack that will fit in the tray of my car i can't find any that are listed to fit in my car and they all seem to be to big maybe modification is the answer? was thinking about installing a venom speed meter and on board temp gauge are these good products
thanks
wrench234

 

[NJRC]

I have an RS4 3 Evo and if I remember correctly, I was able to stuff a 5 cell hump pack battery inside the radio tray. But now I have completely hopped up to a lighter chassis and lighter upper deck so now I use a flat battery pack.

 

[dougc]

If you put your batterys in something like this... http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LX0852&P=7
Then It should take this
http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXVG17&P=ML
Last time I checks mine where the same size.... If your car dont use that I am sure you can zip tie a flat pack somewhere

 

[NJRC]

that hump pack that dougc posted is the exact same size battery I used when I had the radio compartment. Yes, it did fit perfect, just don't use any type of foam lining inside your radio compartment like the one the RTR came with.