GS Storm RTR

[RiceLaxer06]

Hello all,
I just bought my GS Storm RTR about a week ago and have a couple of problems/questions. First off, I keep hereing about oil weights and things, whats that for? Is it for the shocks or the diffs or what. Second, The factory tuning was incredibly rich so I've been slowly leaning it out at about a 1/8-1/4 turn every 5 minutes or so of run time. The low end power was increasing as i did it, but whenever i tried to accelerate beyond maybe half throttle, the engine bogged down and rapidly decellerated. I have almost 6 tanks through the car already and i want to start running it harder. At first i figured that just by leaning it out slowly the problem would rectify itself. That leads me into my 3rd problem. I was continuing leaning out the motor and this time when i did it, i tried to accelerate like i usually do, but the motor just refused to push out more power and cut. I tried again this time easing into it better and this time it ran for about 30 seconds then just randomly cut. Anyone had this problem before? Any help would be awesome.

 

[Cicada]

Originally posted by RiceLaxer06
Hello all,
I just bought my GS Storm RTR about a week ago and have a couple of problems/questions. First off, I keep hereing about oil weights and things, whats that for? Is it for the shocks or the diffs or what.

shocks

higher shock weight -- the shocks compress slower and offer more resistance/stiffness

too hard isnt good though -- youll more than likely break parts that way

most people (atleast i) run 35-40 wt for a 1/8th buggy.



regarding your engine problem -- i kinda got lost -- maybe someone else can help

 

[Nitroaddict]

help us out with a lil more explanation.

Try this first, and then let us know:

At idle, give it full throttle. What happens? Does it bog down, or jump off the line.

at cruising speeds, give it full throttle and let it run full speed. Does it sound like its bogging down, or sporatically cut in and out. high pitched whine, or low pitched?

What is the temp of the engine?

when doing the pinch test, how many seconds before the engine quits?

 

[RiceLaxer06]

When going from idle to full throttle, it just cuts and i have to restart it. At cruising speeds, it wont even let me go past a little more than half throttle and then the engine makes a weird choking noise and the car rapidly slows down.

Ill check the temp later today.

Whats the pinch test?

Thx

 

[Nitroaddict]

rice, what u are describing to me, is telling me that the HSN is far too lean.

How long will it idle without stalling?

The pinch test is used to tell if your LSN is too lean/rich. Pinch off the fuel line a couple of inches before the carb, and see how long it takes the engine to shut off. If it takes more than 4 seconds or so, then the LSN is too Rich. If it cuts off after a couple of seconds, or immediately, then the LSN is too Lean.

 

[RiceLaxer06]

it will idle forever, or atleast until it runs out of gas, i need to do a pinch test this afternoon, too bad school wont let me get home till 5, thx tho

 

[Nitroaddict]

Rice - i just read your post regarding not breaking it in. This is a MAJOR problem! Read my post in the Storm thread.

 

[RobH]

RiceLaxer06, forgive me if I'm wrong, but which needle are you turning to lean the engine out? the high speed needle (HSN) effects that bogging down when you have the throttle wide open. the LSN need effects acceleration.

it sounds to me that you've been adjusting the LSN and not the HSN. when it comes time to tune an engine (changing the settings after break-in), you always start with the HSN first. The HSN setting directly effects the LSN setting. hence, changing the LSN first doesn't do you any good.

welcome to the forum. i hope you can sort out your problem out.

-Rob

 

[RiceLaxer06]

no I'm tuning the HSN, and i did know that u tune it first. I havent even touched the LSN.

 

[RobH]

I got your instant message. i think you logged off or something.

if you are turning the HSN, then your problem is very weird. i would check the manual and reset all of the needles to the factory default / break-in default. the manual should also give some sort of tuning adivce.

you basically run the car back and forth and if you hear that bogging or if the car shuts down at WOT, you lean the HSN a very very small amount (1/12 of a turn). you then run it again a couple of time and listen for the bogging.

when the bogging at WOT goes away, it's time to adjust the LSN. i adjust this by first cleaning out the carb (picking up the buggy and giving it a short shot of WOT). then i place the buggy on the ground and gun the throttle. if you hear of bogging noise or if the car dies, you need to lean the lsn (1/8th of a turn at a time). you repeat this process until the bogging goes away.

this will get you in the ballpark. this wont be a perfect tune, but you might want to get to know your RC and leave it at a richer setting until you've learned how to tune for performance. (you'll need a temp gun to do it safely)

I'll be on AIM until 5pm eastern if you need me to clarify this at all.

good luck,
Rob

 

[RiceLaxer06]

thx,
sry I'm at school and not supposed to be on aim. Ill I'm u in abotu an hour when i get home.
Rice