Newbie - after a bit of inside info!

[sgtbash]

Hey,

I'm looking at returning to R/C Racing after a long break.... just looking to grab a bit of information from any of you regular guys at the Doncaster Club.

I used to race 1/10 and 1/8 off-road for years, but a lack of time and the reliability of the great British weather put an end to that.  I had a bit of a 'fling' with Touring Cars for one season..... back then it was with a TC3.

I've just grabbed a used Yokomo BD7 roller, with a ton of spares to hopefully keep me going for a while.  I don't have an endless budget after buying that and also the new Radio that I am about to order, so I'm looking for some good quality electronics for a good price.

I see your rules allow the running of 13.5 and 10.5 Brushless Setups with 7.4 Lipo.  I intend to start steady again with a 13.5.  I was looking at the Speed Passion Reventon-S ESC 2S Comp V3.0-13.5R Combo.  It seems a good price and the ESC looks like it will handle the 10.5 later down the line too if I feel the need.  Do you guys have any knowledge of the Speed Passion kit, in particular this ESC/Motor Combo.... any pros/cons?

Also I am looking for advice for a good steering servo too.  I was looking at the Savox 1251/1252MG Servos but wondered if there was anything else that could be recommended around the same price?  It will be going with a Sanwa MT-4 Radio and 461 Rx.

Also after a good 'bang for your buck' Lipo.... again, any advice welcome!

And finally.... (still coming with the questions!) ..... what are the usual types of insert/tyre that are being used at the club? I used to use Schumacher Mini Pins for carpet but I see they are banned.  Also, any advice on FDR's for the Club when using the 13.5 setup.

I'm hoping to pop in on Friday night and have a look anyway as I only live in Rossington, but I'd be grateful for any advice.


Cheers.

Ian

[Captain]

Hi Ian and welcome, 13.5t is more than powerful enough for Donny if not too powerful. Not used the reventon esc but seems popular, SP motors are great. Savox are probably the best for that price range or for an extra £20 xpert do a cracking servo. Best value Lipo at the minute are a_spec from hobby king uk, most club members use them and for tyres sorex 28jb....mb models best place to buy. FDR around 7/8.

See you Friday

[scotts17]

www.petitrc.com/reglages/yokomo/setups/BD7/BD7_RonaldVolker_BasicIndoorSetup201211/

Slap this setup on it and it'l be brill ?

Sorex 28's or 32's, savox is you're best bet for servo.

Speed passions are good, I run a hobbywing which is similar to it and it's brill. Don't want to be going any higher than 13.5.

[sgtbash]

Thanks for the info guys..... I'll be along tonight to have a nose around! :-)

[lee84]

Welcome to the forums

I've been there 1 year now wow how time has flown. The speed passion combo's are great value for money. I run the Reventon - Pro which I bought with the view that if I buy once it will last and will allow me to grow with it. If you can pay that little bit extra it is worth doing and will save money in the longer term.

I have found some batteries on giantshark.co.uk - Gen-ace 5000mah 40C cracking batteries and they are a very good price.

[scotts17]

Better off just getting turnigy's nano techs from hobbyking. They're tried& tested

[sgtbash]

More questions.....

Not run Lipo setups before..... looking to find out roughly what number of packs I'll need.

I'm looking at running a 13.5T around 7.5 FDR as a start point. I have a 90W Charger which will kick out 10A on a 7.4V Pack (74 Watts roughly.... give or take).

If I was to buy a pack around 7000mah, charge at 10A between heats and for the final.... should this do me for the night without the need to have multiple packs to drop in and out of the car?

Thanks again.

Regards.

Ian

[scotts17]

Yes it is possible, I'm sure many people only have one lipo and manage to charge up between heats. I have two packs just for ease and not having to worry! Also if you have two lipo's you don't need to charge at as high ampage so lipo's will last longer :-)

[Captain]

I only use one Lipo and charge at 10a, I roughly take around 2200mah per round and charging @ 10a is full for the next round. I use a 5600mah lipo with a 60c rating....ideally you want at least 40c minimum, the higher the better. I wouldn't go too high on the capacity range as the Lipo gets bigger and heavier. Many drivers use shorty Lipo which are smaller and lighter and the capacity is around 4000mah which is more than enough for 13.5t motors.

[Graham D]

I used to run one lipo and had no issues, I used 1 lipo around 6000mah and would charge between rounds at only 5Amps, I worked out I would typically use around 1800-2000 per race and would be putting back in around 1200-1500 between rounds whilst charging so plenty of capacity available even losing a couple of hundred per round.

I now use 2x Nano tech lipos lower capacity around 5500 and charde each one after the round used alternating between rounds. The nano techs are very competitively priced, I think I got mine from Hobbyking or giant cod or something, selecting there UK stock and distribution.

And as Captain says 13.5 is more than enough and is the main choice of use at the club, I think almost everyone in the A final uses 13.5t motors.

Any best of luck.

[Big Paul]

If you have not run lipo before. On your last run Just disconnect the bat and leave it till next time you race. You don't need to faff around discharging and cycling. Plus if you go for nano-tec lipo's, stick with them as there plus and minus are opposite to all the other brands. I run nano-tec 4.200 shorty(I have three they cost £66 posted from hobbyking they were cheaper than just one from the top brands) and have my wires with a short negative wire so I can't plug them in the wrong way round.
Hope I haven't confused you even more I'll explane better face to face. SYA next Friday.

[lee84]

Hi

This is the 50C version of the packs I run. I really can't fault them for cost and performance.

www.giantshark.co.uk/product/171087/gens-ace-5000mah-50c-2s-hard-case-lipo-pack

I have 2 of these and find I can almost get a full charge back in them between race 1 and 2. full charge voltage per cell 4.2v after 5 min race they are down to 4.03v per cell.

[sgtbash]

Thanks for all the Lipo advice everyone ...... as it was about 12 years ago when I was last racing electric (all off-road mind!) ... motors, esc's and batteries are all still a minefield!  The one thing I am chuffed about is that there is no need to be skimming the Motor Com every few heats! 

I stretched my pennies and went for the Speed Passion Reventon Pro V1.1 ESC Comp V3.0-13.5R Combo, so hopefully I won't need another ESC or motor anytime soon.  I have scrounged an Intellect 7600mah 90C Lipo on loan to use for a while until I decide on which Lipos to actually buy... I'll see how that works out using just the single pack.  Also went for the Savox 1251MG Servo.
Got the Sorex XG-28JB's and a Mazda 6 Speed Shell ..... which .... I hate painting!

One last thing...... Personal Transponders.  Which brands are compatible with the Club System?  Is it just the AMB?

Thanks again for the tips everyone!

Ian

[Big Paul]

no a lot of lads use MRT transponders