hey, Im in the middle of running my rs3 on the track 50-80% throttle. Is it ok if i leaned out the top from 5 to 4 1/4 and the low to 3 1/4? My engine would otherwise flame out at factory settings. Thanks

How about the thep when your engine flame out ? Do you have temp gun?

http://www.stsrc.com.tw/engines/D21B.files/D21B.JPG
D21B .21 BUGGY Engine
Coming Soon!

Wanna see it? April 23-25,RCX hobby show at the Anaheim convention center.(booth number is #975 )......:D

45 - 50 degrees C

:o TOO RICH !!!

lol WAY WAY WAY to rich!! hehehehe

Nice engine Dino, any idea on price? (ie compared to say the .12 D5) Got any stats on it? would it beat my Hyper 8 port? :)

Come on, Im trying to pump you for info hehehehehe

:lol: :lol: :lol: :lol: Alright, I just didn't want to hurt my engine so i made sure:blush:

Ok,let's compare it with D5.
Both of them are 5 port.
D5 is 2.1cc only but D21B is 3.5cc with huge torque.
D5 has 6.5mm carb. but D21B has 8mm carb(w/8mm venturi)
BUT,D21B will cheaper than D5....damn...the touring engine is really too expensive...:D

sounds good!!.. If you need a test dummy in Australia to test the .21 buggy my arms are open :D :D :D :D :lol: :lol: I'll give it back, I promise.... :eek:

Come on man! You broken my heart :o
Our target is S7 or MKII....:deathstar

hehe well I just had to ask :P

I REALLY like the sound of this engine!!! :) :)

Might be soon time to sell the Hyper 8 and upgrade.. Just need a pulll start STS to replace the novarossi then all my R/C would be running STS engines! :nod:

In fact STS and Hobao are friends. So...you know...:lol:

A pull start version will come latter. But still don't have idea if it should .25? or .26? or .27? or .28?:confused:

In the beginning,the .25 came out. Then Picco produce .26, Sirio produce .27... RB produce .28 now. Should we join the war? .29? even .30/5cc :confused: :weird:

I dont know dino, the monter truck guys seem to go crazy over the bigger engines.
A few weekends ago my buggy w/hyper 8 port .21 was flogging a monster truck w/picco .26 in it :) Buggies just go better I guess :)

If you are going to produce a larger then .21 engine I guess .30 would be the go but I feel it would be limited market? or is there a lot of interest in over .21 engines? I don't know. One thing it would have to have pullstart option as a lot of monster truck guys seem to go for the larger then .21 engines, for torque and they need pullstart.

Thanks Dino,

Does this mean it's ok for the engine to run around 140-150C in the first few laps but then it'll cool down.. Because my problem is excessive temperature even when the engine is idle or there is not much load on it..

Engine is fully run in. Removing glow plug and turning engine over by hand also feels right.

No, the first few laps the engine should be slugish and as if its too rich, as it heats up it becomes ALIVE...

Those temps you have a way too hot, what is performance like? I would richen needles.

Here is info from earlier messages.
BTW - I had air leaks from moving fuel inlet on carb (me naughty) Have you touched this?