XXXDad

iTrader: (198)

Thanks man, its just that 17.5 boosted spun the tire out way more like more RPM's so I was just wondering because its my first mod motor in this buggy! .

McD44

iTrader: (16)

I have a question on the setup sheets. I'll be running a shorty pack as most of the setup sheets indicate. When the sheet dictates "Battery Forward". Is that forward in the tray with the battery stop in the forward position or in the rearward position?

magnushedqvist

About piston sizes. Can you simply add the holes sizes to get a sort of piston number? Like say the 55 piston 4 holes most people used to run. I think the holes size was about 1.2mm. They combined would be 4.8 right? When we now run 2 holes with 1.6mm holes that would be 3.2mm. That would make a much tighter piston, am I right? If you wanted to go for more pack, why just not run the 57 pistons? Think they have 1mm holes. Do you want even more pack then that?

Another question, does it makes any difference if I run 2 holes at 1.5mm or 3 holes at say 1mm?

Casper

iTrader: (34)

Typically this means the battery tray is in the rear position and the battery is all the way forward in that. To make things even more complicated a lot of us use the Alum battery tray and that has two positions and a lot of use use that to move the tray 10mm further forward in the rear position. Are you confused yet?

McD44

iTrader: (16)

LOL I think I know what your're saying. I saw the "10mm forward" comment on one of the sheets, now I understand what that means.

That's good news, I'll have more room for my Rx and PT then. I'll have to pick up that AL tray too. With two nitro 1/8 scales and now this little speedster my "need to order" list is getting long...and costly .

Casper

iTrader: (34)

Yeah once you get it setup though maintance costs are not that bad on the 22 series.

I think we need a little cheat sheet that lables the different battery tray positions. Might try and whip up something.

dtr

Holes in pistons do not work like that. Warning, the following explanation is technically incorrect, it is just intended for general guidance!
At low speeds as many oil can move through the piston as the sum of the hole areas. To compare pistons in this regard you have to multiply the square of the hole diameters with the number of holes.
At high speeds the movement of oil becomes turbulent, where less oil can pass. The smaller the size of the holes, the sooner it reaches these higher speeds.
Generally this high speed motion is reached when hitting the cafe of a jump or landing. This means if you have fewer holes but bigger, your shocks will be more predictable, but will bottom out on smaller jumps.
you have to add the squares of piston di

jkirkwood

iTrader: (8)

Then add the Orion WTS battery to the equation and it gets even more complex.

Jrob72

iTrader: (3)

Should I switch to the two hole piston? If so what are the changes going to be?

Casper

iTrader: (34)

if you go from say 4 hole 55 to 2 hole 1.6 pistons. I found corner handling was very similar but the car landed better and in the rougher parts of the track the car was more settled. Did not move around as much. Basically it gives a little more pack without effecting roll as much as say going down to a 56 4 hole piston may.

wyd

iTrader: (51)

I was confused but I understand what your saying now. Good info. Need to update my notes. Also a aluminum tray to experiment with.

Cameron Kellogg

iTrader: (45)

What are people doing to remove the bump steer this buggy has.

C Branch

iTrader: (21)

Come on Cam, you know I can fix that for you

Jrob72

iTrader: (3)

Ok I may try that, I'm trying to get my back end to quit spinning out through turns I've adjusted a few things and its gotten better. Someone suggested a less aggressive front tire I may give that a try. I've been running rebars any suggestions ?

joeymdz

iTrader: (13)

list your set up and what type of surface you are running on and lots will chime in to help! (the 2 hole piston mod settles down the car but if your spinning out through the corners its more of a set issue you have)