The reciever can handle 2s lipo without a problem but isn't limiting the voltage for the servo's. In this setup you will need high voltage servo's (I'm running futaba s9352 servo's in my nitro).

If not, you have to use Nihm or life as an RX battery. Or a voltage limiter but that's added weight en (mainly) extra space you have to forsee.

Well if you are in the USA, Tower Hobbies has the 4PX w/R304SB for $550 but you can apply a $60 coupon discount code to make it $490 and then get the second receiver for the $550 price basically and get free shipping.

If you join the Super Saver club for a 1 Year Membership for $9.99 then that will open up a $75 off coupon code for initially add a $475+ item to your shopping cart and then have better value coupon codes for the next year for different spend points.

Or you can always try your local hobby shop, nowadays more of them can compete or really actually willing to compete with the internet deals.

I might have to grab some 1600mA 2/3A type 5 cell straight receiver packs then. The costs of the 2 HV servos right now might be a bit tough, still got to buy the RC8B3 buggy when it comes out.

Thanks for the info!

-YES! ...working on this and on getting a 4px.
Plan on selling a few things to justify the $$

I put a new gopro camera I had won and wasn't going to use on eBay ....sold w/in 2 hrs! ...ordered my 4px through tower for $470 shipped!! I had a mailer that advertised the 4px for $519, then used a $49 off coupon and free shipping.

Nice, I got to get like 4 R/C cars up for sale and hope I can sell them in time for the RC8B3 launch so I don't have to use as much out of my bank account.

I just sold a bunch of RC stuff over the past 2 months, including a car and tons of spares ...made $600+ ...and then w/ the GoPro I sold I almost topped $1k. Bought an XRay F1 and the 4px ...even steven.

Dang eR1c! Congrats!!

Thanks Sakadachi!

hi guys, i plan on running modified TC with my 4PX and am hoping to find tricks to make the car easier to drive. currently know of negative expo on the throttle but is there anything else this amazing tx can help to control the car?

...not that I know of, I have enough trouble in Silver Can (erm 21.5 now isn't it?)

In mod TC you can soften initial throttle by using expo. That said you are probably better off messing with timing curves, boost and turbo on your ESC.
That and proper car setup are going to be key. Oh an realizing when not to grab a fist full of throttle.

On my 4PKS-R, there is a DELAY feature where you can slow down the trigger pull signal output to your receiver. While the throttle curve and Expo helps, the delay feature was a big improvement for me for a peaky motor/car I have. You can set it in the throttle pull range too. It is quite awesome. I am sure the 4PX has it too.

eR1c - I am jelly!

-sorry man. ...but if it's any consolation I've been using a Futaba 2pl for the past 8 years ..... ...its taped together and the foam on the wheel has been coming off in chunks. Surprisingly it is a good radio and I really can't fault it in any way. But 8 years of use, it's time to upgrade.

Just need to work on getting my own track (like someone I know).

Sadakachi, ...how the heck did you get 500+ posts in like 4 months of being on this site? I've been on for 5+ years and only have 500 posts!!