RE: STS Engines

RE: STS Engines
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RE: STS Engines - 12/1/2007 3:27:05 PM

46u

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Joined: 1/13/2005
From: Macon, GA, USA
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The tracks I run I consider tight and technical. I did not like the JP-1 on it and seemed to make my STS D21B stock and modified engine run a little hotter. I have no problem with keeping up with the high dollar engines. Once again pipes are like many things the one I like someone else may not do to the way a person drives and is way I say pipes have a lot to do with personal preference. j_blaze is the 053 an XTM pipe and is it the one Redcat Nick is running? Lets all so keep in mind we are running a 21, 5 port and I am guessing Redcat Nick is running the 3 port 28. As stated above I do have the STS 3 port 28 in my Savage but do not run it near as much as my Hyper 8 (soon to be a 8.5). Matter of fact I have not race my Savage since putting the STS in it only went to a few practices.

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Post #: 51

RE: STS Engines - 12/1/2007 8:27:25 PM

JB COMP

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Joined: 11/23/2006
From: Navarre, FL, USA
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Here check out how a tuned pipe works http://www.bukupower.com/animatecorrect.aspx

if you get a low end pipe for a engine that has all its power in the mid or top then the engine gona run bad, or not the best. you get a pipe for thats best for the engine you run then regear to the track, like I run on a tight track, and I'm running a STS 21B which has good mid-top so I got a JP-3 which is a good mid-top pipe and I geared for the track.

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LX Comp: STS21B, JP-3, DX3.0 - CRT: STS 30 Rev2 or Mach 427, STS 0702, DX3.0 - T-maxx: TRX2.5
Airtronics. BlueBird.

(in reply to 46u)

Post #: 52

RE: STS Engines - 12/2/2007 2:48:45 AM

j_blaze

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Joined: 1/4/2007
From: Tampa, FL, USA
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where does the sts have its power? jb, the break-in worked great. i had it geared for the track, 12/46 13/45 and it was ripping. i was just comparing it to some of the other buggies out there that day ($300+ engines too). also the engine was on its 10-15 tanks too, still waking up some more. tomorrow i'll have the bug and trug for some good hours of fun. changed all oils today and washed up good too.

< Message edited by j_blaze -- 12/2/2007 2:51:15 AM >

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Hyper ST PRO - RB WS7III/RB S5 L2G, JR, DX3R
Cen Matrix PBS - RB S3II/STS D21B (JBModz), Ace

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Post #: 53

RE: STS Engines - 12/2/2007 3:26:34 AM

JB COMP

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From: Navarre, FL, USA
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quote:

where does the sts have its power?

well, from what I can tell (I have never had a $300 engine to campare it with) but to me, the STS has good bottom but stronger in the mid-top.

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LX Comp: STS21B, JP-3, DX3.0 - CRT: STS 30 Rev2 or Mach 427, STS 0702, DX3.0 - T-maxx: TRX2.5
Airtronics. BlueBird.

(in reply to j_blaze)

Post #: 54

RE: STS Engines - 12/2/2007 4:15:33 PM

46u

Posts: 16734
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From: Macon, GA, USA
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I have an OS V Spec and race with many that have high dollar engines and the STS is very competitive. I run series races so I race many different racers at different tracks. Now if you where to drag race them on a 300 foot straight away might be different but this is not the type of racing I do. I have no problem with my STS D21B in any of the ranges low, mid or top. Matter of fact I have many I race with are very impressed with how my STS engines keep up. I will be running a new STS D21T MKII the beginning of next season.

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Post #: 55

RE: STS Engines - 12/2/2007 4:30:15 PM

supertib

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quote:

ORIGINAL: 46u

I have an OS V Spec and race with many that have high dollar engines and the STS is very competitive. I run series races so I race many different racers at different tracks. Now if you where to drag race them on a 300 foot straight away might be different but this is not the type of racing I do. I have no problem with my STS D21B in any of the ranges low, mid or top. Matter of fact I have many I race with are very impressed with how my STS engines keep up. I will be running a new STS D21T MKII the beginning of next season.

try a Picco for a change...the EVO 2 is amazing !!!!

(in reply to 46u)

Post #: 56

RE: STS Engines - 12/2/2007 4:40:15 PM

46u

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From: Macon, GA, USA
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I run with guys that run Picco’s and still have no problem keeping up now weather it is a EVO 2 I cannot say. I run with people running the OS V speck speed as well. For the money I do not think you can beat a STS D21B and the verdict on the STS D21T MKII is not in yet as I have not had a chance to race it and are very competitive engines. There are many good engines out there.

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Post #: 57

RE: STS Engines - 12/2/2007 5:56:52 PM

supertib

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quote:

ORIGINAL: 46u

I run with guys that run Picco’s and still have no problem keeping up now weather it is a EVO 2 I cannot say. I run with people running the OS V speck speed as well. For the money I do not think you can beat a STS D21B and the verdict on the STS D21T MKII is not in yet as I have not had a chance to race it and are very competitive engines. There are many good engines out there.

we have a modded STS .21B....Integra races with one sometimes.... actualy he's won a couple of A-Mains with it.....Anyways if you drove the Picco back to back with the STS you'd see the difference..its alot bigger then your anticipating..... I know you like STS alot, but i honestly think you'd really apreciate the value in the Picco engine.... Yes its $100 more then the STS, but as soon as you open up the Picco i'd bet you agree with me that for the $$$ the Picco is a better value...... I mean a Picco P7R makes as much power onthe dyno as a STS 30..the STS .21 is nowhere near that power level... I wouldn't lie to you over this, i strongly feel you would appreciate a few other brands as much if not more then you appreciate the STS mills.

(in reply to 46u)

Post #: 58

RE: STS Engines - 12/3/2007 8:01:01 PM

Colt4g63

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Joined: 4/30/2005
From: New Albany, IN, USA
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The EVO 2 is a GREAT engine and the low cost makes it even better!! My modified version of the EVO2 does make more power then a STS 30 but does it with a smoother power curve that is just awsome for the track! And the engine also gets GREAT run times even after a stage 2 modification. I cant see anyother engine ATM having a better bang for the buck then the EVO 2. The STS engines are good for the $ as well. But have been known to have alot of issues... But when u get a good one they do very well for a 100$ engine!

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Post #: 59

RE: STS Engines - 12/4/2007 1:39:56 AM

WHIP

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Joined: 3/10/2002
From: RVC, NY, USA
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Anybody using a Jammin JP4 pipe on a STS .30 ENGINE need some feed back. I've been running the 0702's with good performance, just bought a new JP4 to try. "Pipe of the month club"

(in reply to Colt4g63)

Post #: 60

RE: STS Engines - 12/5/2007 8:00:42 PM

Kemo

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From: Elk River, MN, USA
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Dont buy a sts engine until you have seen this one... I'll try to get my hands on it as fast as I can, but I have to wait for them to get in stock. Pricing is unknown at this time:

S21T BUGGY ENGINE (#2121)
Type : rear exhaust without pull-start
Cylinder Contents : 3.5cc
Bore : 16.68mm / Stroke:16.00mm
Crankshaft : 14mm SG type
Carburetor : 2 Needles Slide 7~9 mm
Piston / Sleeve : ABC 5P
Glow-plug : Turbo

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Post #: 61

RE: STS Engines - 12/5/2007 8:16:57 PM

JB COMP

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Kemo, most likely the priceing of the new S21T will be close to the same as the MKii if not more.

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LX Comp: STS21B, JP-3, DX3.0 - CRT: STS 30 Rev2 or Mach 427, STS 0702, DX3.0 - T-maxx: TRX2.5
Airtronics. BlueBird.

(in reply to Kemo)

Post #: 62

RE: STS Engines - 12/7/2007 5:02:58 AM

SAVAGEJIM

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Joined: 7/6/2005
From: behind my 'puter, USA
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Thnks for posting pics of the sleeve; I love teh recing ticks they thew into it. I hope STS was wise enough to put an timing profile to exploit that port configuration and the other racing tricks I see on those parts

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Post #: 63

RE: STS Engines - 12/9/2007 3:04:03 AM

j_blaze

Posts: 1369
Joined: 1/4/2007
From: Tampa, FL, USA
Status: offline

why the different venturis? wouldn't that cut back on power to go from 8mm to 6mm? is it maybe for fuel economy? not sure, i took mine out after porting sleeve and its a screamer.

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Hyper ST PRO - RB WS7III/RB S5 L2G, JR, DX3R
Cen Matrix PBS - RB S3II/STS D21B (JBModz), Ace

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