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-   -   Viper RC - (https://www.rctech.net/forum/radio-electronics/455152-viper-rc.html)

Cult Racing 06-16-2011 08:43 PM


Originally Posted by SC_RAGE (Post 9266723)
You already know.:nod:

what? that ill be the first one customer to get the 8th scale esc? lol Ya I do know that.

Thanks for helping me out Rage, i sent my other esc yesterday.

savageboy69 06-16-2011 10:23 PM

on the viper motors are you guys adjusting can timing at all or leaving it where it comes stock, wondering for my 8.5

smokinu 06-16-2011 10:34 PM


Originally Posted by savageboy69 (Post 9267113)
on the viper motors are you guys adjusting can timing at all or leaving it where it comes stock, wondering for my 8.5

between 25-35* just depends on track conditions. on high bite i will go as far as 40 but never max it out.

just remember dont boost to much
make sure the boost timing and can timing dont exceed 60* together or run the risk of over revving the motor.

our boost feture creates a CRAP load of rpm super fast! so testing is key.

SC_RAGE 06-17-2011 08:54 AM


Originally Posted by Cult Racing (Post 9266762)
what? that ill be the first one customer to get the 8th scale esc? lol Ya I do know that.

Thanks for helping me out Rage, i sent my other esc yesterday.

Lol probably, Yea hopefully I get it today so i can send it out today. Maybe you get it tomorrow.

savageboy69 06-17-2011 09:15 AM

Ok so far I have my 8.5 and vtxr in my scr, I have 10 boost 10 top speed and 8 slew rate, any suggestions or thoughts? 21/82 gearing, stock motor timing

Manshoon 06-17-2011 09:27 AM


Originally Posted by mini-dub (Post 9260747)
Two pole motors by nature are higher rpm and lower torque than four pole motors. Two pole motors also tend to have a much smoother and more precise power band.

Four pole motors may be better for some specific applications, but at the same time a two pole motor will be better for other specific applications. In rc cars a four pole design isn't necessarily better, and in our opinion this two pole design is better for the intended application and desired performance.

I will give you guys a more technical answer soon on the differences between a two and four pole design :tire:

Kind of like a 2 stroke and 4 stroke dirt bike then ?

SC_RAGE 06-17-2011 09:30 AM


Originally Posted by savageboy69 (Post 9268704)
Ok so far I have my 8.5 and vtxr in my scr, I have 10 boost 10 top speed and 8 slew rate, any suggestions or thoughts? 21/82 gearing, stock motor timing

I wouldn run boost on an 8.5 but I could give you a gearing option for non boost that you might like'. 18/84. Its a proven ratio. try it out.

savageboy69 06-17-2011 09:37 AM

We have a big straight away at our track, 12.1 fdr just seems high to me, but ill try it out today

SC_RAGE 06-17-2011 09:39 AM


Originally Posted by savageboy69 (Post 9268817)
We have a big straight away at our track, 12.1 fdr just seems high to me, but ill try it out today

Without boost it should be good. Check temps after and report please. Im curious cause I haven't tried it yet. But we have drivers who have.

savageboy69 06-17-2011 09:52 AM

I'll report back this afternoon

AMorgan 06-17-2011 10:21 AM

I'm looking at a VTX10R to replace my RX8 (the RX8 has too large of a footprint in my application), but having read a few pages, it sounds like more than a couple are DOA or shortly thereafter. I'm curious if it's a few people having problems (like when the RX8s first came out) and if when you get it back, if you had continued problems or if they were remedied. As long as if there is a problem it can be fixed quickly and stay fixed, this seems like an ideal ESC for my setup.

smokinu 06-17-2011 11:02 AM


Originally Posted by AMorgan (Post 9268992)
I'm looking at a VTX10R to replace my RX8 (the RX8 has too large of a footprint in my application), but having read a few pages, it sounds like more than a couple are DOA or shortly thereafter. I'm curious if it's a few people having problems (like when the RX8s first came out) and if when you get it back, if you had continued problems or if they were remedied. As long as if there is a problem it can be fixed quickly and stay fixed, this seems like an ideal ESC for my setup.

turn around time has been less then 7days on rma projects.

we had a couple esc's out of the batch come up doa after leaving our facility.

Weylin has commented on the new batch being more stable and less likley to fail.

SC_RAGE 06-17-2011 11:03 AM


Originally Posted by AMorgan (Post 9268992)
I'm looking at a VTX10R to replace my RX8 (the RX8 has too large of a footprint in my application), but having read a few pages, it sounds like more than a couple are DOA or shortly thereafter. I'm curious if it's a few people having problems (like when the RX8s first came out) and if when you get it back, if you had continued problems or if they were remedied. As long as if there is a problem it can be fixed quickly and stay fixed, this seems like an ideal ESC for my setup.

If you stick to 2s and dont over gear it or solder it poorly, they work good. The first run had some flaws but we got them iorned out. we have an 8th sale speedo that will be smaller than rx8 and it will be a better fit for the losi imo. Im running a vtx 10r and vst xl 5.5, havent had any issues. 14-16 tooth pinion.

Dlewis4 06-17-2011 11:19 AM

Interesting....

AMorgan 06-17-2011 11:20 AM

I'm actually running a Durango and with the RX8 in there, there really isn't much room for a receiver.I like that the Viper is smaller and lighter than the RX8 and overall should fit MUCH better. Guess I'll get one on order once amain gets them back in and give it a shot.


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