nexxus

iTrader: (315)

I found the VST 2100kv just turned the car around if you punched it the torque on it was huge, and it was difficult to gear it up without the ESC getting upset, I was pulling 90 amps geared with a 20t pinion down the straights, my 1/8 Buggy with a Hobbywing 2200 sensored only pulls 75!

Bit of a balancing act between torque and rpm, we have an rpm limit of 2300kv to deal with as well.

D.a.v.e

iTrader: (8)

I've seen some pic's that the nitro version is coming as a 2.0 now, so it would make sense that we start seeing them soon as well.

scooby61

iTrader: (1)

What are the differences between 2.0 and 1.0. My kit is 2yrs. Old. I've gone to +2 mm rear and -1 mm front wheel hexes. And that helped alot.

D.a.v.e

iTrader: (8)

One of the team drivers posted this on the FB page, basically they are bringing the car inline with the buggy. I think these came out for the buggy at least a year ago maybe two?

600641 -2mm Hex Adapter for the rear
600633 Wishbone Rear L+R
600630 Upright Truggy V2
600482 Wheelaxle RR V2
600102 98mm Driveshaft

The 2.0 kit also comes with the shimless differential gears but this change was made a while back.

scooby61

iTrader: (1)

Thanks but what I meant is what are the actual differences? Arms longer? Different shock mounting positions?

nexxus

iTrader: (315)

The rear hub carriers have different offset so the driveshaft length changes, and the shocks mount on the other side of the rear tower.

scooby61

iTrader: (1)

Thanks

utah300rum

iTrader: (27)

I have read thru some older posts about batteries but was hoping to get some current info on mah capacity guys are using for racing.... I am mainly looking for mah recommendations more than battery brand (don't want to start another brand war )

I will be racing on a outdoor asphalt track the back straight is approx 110ft the infield changes often but I would usually consider it pretty tight vs flowing......I plan on running a Hobbywing 4068 sized 2200kv motor

We typically race 5 minutes quals and a 6 minute main....... I have a few 5000mah packs from my offroad stuff but it seems like the onroad GT cars are a little more power hungry

C@T

YouŽll need roundabout 10 Watt-Hours per minute of racing.

If you add a minute at the beginning to do one or two laps and one spare minute at the end you need to have power for 8 minutes.

That means that the power consumed will be ~ 80 Watt. As you should not use more than 70% of the spec battery capacity the value to look at is 104 Watt.

That leads to 7000 mAh + batteries (104W/14.8V=7.02Ah).

More important than the pure capacity is that the C-rate for duration should be above 40C. Anything less will not really survive.

scooby61

iTrader: (1)

I run outdoor asphalt 5 min qual. And 6 min mains. With a 4 cell limit. I run 2 5000mah onyx cheapo batteries and have never had an issue. My batteries are all 3yrs old racing every weekend. Treat them right and they will last a while.

nexxus

iTrader: (315)

Best thing I found was an eagletree to see what sort of amps you are going to pull and get batteries to suit. I found my GT with the Orion VST pulled 80-85 amps at most during a race, so my SMC 6500's were overkill

utah300rum

iTrader: (27)

Thanks for the replies......I was getting antsy and wanted to order batts before my car was here...... But I think I wait till my car is running before I buy some new Lipos.... I would like to try to keep weight down if possible those 6000+ mah get pretty heavy when you are trying to put a car on a diet

I will try my 5300mah 50c batts I have and see how they do then decide

Thanks Again

scooby61

iTrader: (1)

I got around 300g off mine with titanium turnbuckles, carbon radio tray, and I cut off a lot of the extra plastic like the side guards running down the chassis don't really need all that off road buggy stuff on a gt car.

nexxus

iTrader: (315)

I lost 100 grams by downsizing motors, must put it on the scales and do a bit of a cull as well, I have done most of the lightweight upgrades etc but can always shed weight somewhere, maybe batteries as well given the amp load.

pieter

iTrader: (4)

So what is a good weight and what is the minimum we are allowed