anyone know much about STS engines?

did you try a search?
there's an exact same thread in the truggy sections....

[link=http://www.rcuniverse.com/forum/m_5252136/anchors_5252136/mpage_1/key_sts%252Cengines/anchor/tm.htm#5252136]here is a link[/link]

Got 2 and I like one of them (I have the 21B and the 30 REV2) the Rev 2 is where they (STS) had some problems, but from what I hear the new STS engines are great.

sorry i didnt search, thanks for the link

no prob man
just try a search the next time

send 46u a pm..he praises sts mills..

i've run 2 d21b's this year in a buggy and truggy and they are awesome. they lasted about 5 gallons (heavily modified, race tuned and only 30%) the crank shafts cracked in two on the same week. the pinch is still very good so i have two new cranks, new bearings and conrod on order. they are heavily modified and give outstanding performance for the money. if not for a great deal on some RB's i would still be running them. i'll get them back together and have them for spares. the only problem i have had with them is they come from hong kong and if you need something it takes about 2 weeks to get here, not too much us support either. they have descent bottom end, very good mid and top end, they hold a tune all day and love to be run hard. i run byrons gen2 3000, odo99 plugz, and it took very lean operation to break 200c, they like 210ish with 2 copper shims. very very good for the money. there are some new sts's out this year, S21T and so far there have been no complaints.

I have had 6 STS engines and the only one I had problems with is one modified by RBmods. Right now I am running a STS D21T MKII. As a budget engine I think the STS D21B is one of the best for the money. I have a D21B that has WELL over 5 gallons on it and is still running fine. Like any engine a lot has to do with how you tune and take care of it.

In order to get my STS engines to perform like I want they run between 250 and 270 degrees. But in my opinion anything between 220 to 280 is fine. I run Byron 30% with a hot plug.

i have been trying to access their www. ut, it has been down for weeks...is it telling you something?

IF you are talking about STS web site I do not have a problem as I just checked. Now if you are talking about STS Micro Engines who was just an importer they shut down but there are at least 2 others selling STS engines in the US.
http://www.stsrc.com.tw/index.php
http://projectzen.net/
http://nitrocountryrc.com/-c-45_46.html

thanks 46u, I need them so bad

Hi, I have plan to get one new STS engine for my buggy and dont know which one to choose. D21E or D21B....I know E is the 3 port and D is the 5port. I just for bashing and not go race. May I know 3port version is how many rpm? Any pro and con on both engine? I cant wait to get one.......Thanks.

46u, may I know what type of the brake-in you using? Can send me the procedure if you can..thanks.

I also have a STS D21t and its been nothing but a pleasure to have.