XRAY T4 2016 using electrics from HPI Sprint 2 Flux

[mephisto]

Hi guys,

My sprint 2 is always giving me headaches with mechanical parts failing, the rear belt lost all teeth a couple of times already, so last time I added a mod with a belt tensioner, but eventually the tensioner snapped off and another belt was eaten, plus the play with steering, and the fact I can't easily use foam tyre as the suspension arms protrude beyond the wheel hub so it locks the wheel. Every time I need to disassemble something on the HPI it is a nightmare as I need to disassemble half of the car to replace the belt for example.

 

My idea is to jump to a proper 1/10 chassis so I was told the XRAY T4 is a good base, and I'm planning on the beginning to use all electronics from the HPI and then slowly I replace bits as necessary for a 13.5T blinky category to range in south London.

Has anyone god some advice about what I can do?

 

These are the electronics from the HPI

http://www.hpiracing.com/en/part/106766

http://www.hpiracing.com/en/part/106627

http://www.hpiracing.com/en/part/104105

and this is the pinion

http://www.hpiracing.com/en/part/6923

 

Thanks!

[Si Coe]

The esc and motor will fit in fine, but you will likely need to change the pinion as its unlike the t4 has the same internal ratio as the Sprint. Its going to be pretty quick like that though, or rather it will be a fair but slower as a 13.5t blinky - in a straight line at least.

The servo I'd not bother with. Its big, plastic geared and slow. It will fit, but with no internal servo saver it will strip on the first crash. Get a low profile metal geared servo like this which is much more suitable.

[mephisto]

14 hours ago, Si Coe said:

The esc and motor will fit in fine, but you will likely need to change the pinion as its unlike the t4 has the same internal ratio as the Sprint. Its going to be pretty quick like that though, or rather it will be a fair but slower as a 13.5t blinky - in a straight line at least.

The servo I'd not bother with. Its big, plastic geared and slow. It will fit, but with no internal servo saver it will strip on the first crash. Get a low profile metal geared servo like this which is much more suitable.

Yeah, I'm planning to buy a set of pinions so I can play with them, thanks for pointing that out

 

I was reading about servos including the model you mentioned, thanks. It seems I could be better off with a digital servo, so I was checking options for around £40-50 and I was thinking about these models:

http://www.savoxusa.com/Savox_SC1258TG_Digital_Servo_p/savsc1258tg.htm

or 

http://hitecrcd.com/products/servos/ultra-premium-high-resolution-digital-servos/hs-8330sh-high-voltage-high-responsive-high-speed-steel-gear-servo/product

or 

http://www.modelsport.co.uk/alturn-usa-full-size-racing-digital-servo-hs-tg-ultra-high-speed-/rc-car-products/359790

It seems I can easily replace my analog with a digital one, right? No need for a new receiver? I use a RF-11 http://www.hpiracing.com/en/part/105407 

 

Thanks!

Edited December 6, 2015 by mephisto