R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro On-Road

Reply
 
Thread Tools Search this Thread
Old 11-08-2002, 08:18 AM   #5116
Tech Prophet
 
InitialD's Avatar
 
Join Date: Feb 2002
Location: MORDOR
Posts: 19,679
Default

Quote:
Originally posted by calimassive
The newer Futaba S9451 digital high speed/high torque servo's look very nice too. I think just like the S9450's they are made specifically for car use. The S9451's are described on the Towerhobbies site as being especially suited for Touring Cars. The release date is late November and there about 20 bux cheaper than the S9450's. The S9451's also have the same speed 0.10 as the older S9450's but have a higher torque rating at 6 volts: S9450 = 111 S9451 = 120. That's what it says on the Tower site anyways. Sounds like you're getting a comparable servo for slightly less, if you wait about a month.
I think a lot of people mistake Futaba's ratings. If you look cafefully especially at the S9450 ratings at Futaba's own website (not Tower's), you will find that it rates the torque as 111 oz / in at 4.8 V. Extrapolating that to 6V, you'll find that the "actual" torque value for the S9450 is actually 138.75 oz / in (10 kg * cm). Speed wise, the S9450 is rated as 0.1 s, also at 4.8 V. So at 6V, the S9450 has an "actual" reaction time of 0.08 s.

Now that is faster and more powerful than the newer S9451 servo. For what it's worth, the new servo specifications that Futaba listed is as below;

S9451 (for 1/10 scale)
Size 40.0 X 20.0 X 36.6 mm
Weight 56 g
Speed 0.10sec/60 (6.0V)
Output torque 8.7kg * cm (6.0V)

S9350 (for 1/8 scale)
Size 40.0 X 20.0 X 36.6mm
Weight 61 g
Speed 0.12sec/60 (6.0V)
Output torque 10.0kg * cm (6.0V)

S5050 (for 1/5 scale)
Size 59.2 X 28.8 X 49.8 mm
Weight 127 g
Speed 0.2sec/60 (6.0V)
Output torque 19kg * cm (6.0V)
InitialD is offline   Reply With Quote
Old 11-08-2002, 08:58 AM   #5117
Tech Regular
 
NitroNut's Avatar
 
Join Date: Aug 2002
Location: Madison, WI
Posts: 303
Unhappy

where can i get rb engines i cant find ne one towerhobbies
NitroNut is offline   Reply With Quote
Old 11-08-2002, 09:22 AM   #5118
Tech Regular
 
Join Date: Sep 2002
Posts: 326
Default

Initial D, thanks for clearing that up. I just went to Futaba's site and confirmed what you just said. Towerhobbies's listings dont seem to be accurate.


Nitro Nut, I special ordered my RB-X12 at my local hobby shop. Towerhobbies does not carry RB engines as you already know, but you can order them online at a gazillion different online hobbyshops; just to name a few: Ace hardware hobbies, Hobbytown USA, Ultimate hobbies, Pegasus hobbies, Bruckner hobbies, etc. Do a search on any of those hobby stores, visit their sites, and see who has the best price. Ace hardware hobbies & Ashford hobbies has them for 170 bux. I got mine for 160, so I'm sure you can get it for around that price. Just do some googling.

Here's RB's site, there u can find a list of dealers. The engine you want is the RB Concept X12 (rear exhaust 3 port) with: normal glowplug, serpent/SG crankshaft, and slide carb. Its a great engine. I love mine.

http://www.rbproducts.com/index.html

Some other engines you might want to look at are :Mugen/Novarossi MT-12 and MR-12 or NovaRossi RS-12, Rossi makes some nice engines from what I hear as well. All the engines I mentioned have good reputations.

Last edited by calimassive; 11-08-2002 at 09:41 AM.
calimassive is offline   Reply With Quote
Old 11-08-2002, 09:31 AM   #5119
Tech Regular
 
NitroNut's Avatar
 
Join Date: Aug 2002
Location: Madison, WI
Posts: 303
Default

Hey thx
NitroNut is offline   Reply With Quote
Old 11-08-2002, 09:45 AM   #5120
Tech Regular
 
Join Date: Sep 2002
Posts: 326
Default

Hey Nitro Nut, Brooklyn Hobbies, has it for 169.99. Click on the link below, then click on engines, find the RB logo, click on it, and the 3rd engine down (X12 SG Shaft w/Slide Carb) is the Engine you want.

http://www.brooklynhobbies.com/shop.htm


sorry for all the edits, hopefully you got the right link. I had to change it a few times cause a few werent working right. Anyways, hope that helps.

Last edited by calimassive; 11-08-2002 at 09:52 AM.
calimassive is offline   Reply With Quote
Old 11-08-2002, 01:05 PM   #5121
Tech Elite
 
kevink2's Avatar
 
Join Date: Nov 2001
Location: Glendale, Calif.
Posts: 2,154
Default

Quote:
Originally posted by calimassive
oh its Korean??? OK, cool... is all there stuff crappy or is some of it actually ok?
I've been running a 925-MG for the steering for quite a while and have been pleasantly surprised by how well it has worked for me. I haven't run any of their digitals though.

IMO, if you live in CA., I'll always recommend Airtronics, since they're in Anaheim. 357 for steering and 737 for throttle. There's nothing wrong with high performance analogs, and may actually be more reliable in the long run. People I race with say the KO's digitals are excellent performers, but I've also seen a lot of blown one's.
kevink2 is offline   Reply With Quote
Old 11-08-2002, 06:57 PM   #5122
Tech Master
 
squizzytaylor's Avatar
 
Join Date: Jun 2002
Location: Toronto NSW Australia
Posts: 1,119
Default servos

OK, went out today and no-one local has got the Futaba servos so I bought a Hi-Tec hs5945-mg...no cheaper than the futaba but the specs are similar being 181oz @0.13 sec @6v at the very least better than the standard futabas and as this was the same shop that sold me dodgy JR servo they've promised to look after me should there be any problems. I guess we'll see how we go!
Thanks amgracer for the info.

gt

squizzytaylor is offline   Reply With Quote
Old 11-08-2002, 08:26 PM   #5123
Tech Initiate
 
Join Date: Jul 2002
Posts: 47
Send a message via AIM to blandv
Default Pinions and Gears

Can someone please tell me what I need to do to get more top end speed and quickness from the start. I have the following:
centax clutch, mt-12 with tuned pipe, 2 speed, aluminum stock pulleys, stock gearing, front one way. Thanks I'm a little slow.
blandv is offline   Reply With Quote
Old 11-08-2002, 11:37 PM   #5124
Tech Master
 
Join Date: Oct 2001
Location: concord Ca
Posts: 1,440
Send a message via AIM to HEYALIGNMENTGUY Send a message via Yahoo to HEYALIGNMENTGUY
Default

Patella : I found Mo Powa in my mail box today

Thanks
HEYALIGNMENTGUY is offline   Reply With Quote
Old 11-08-2002, 11:40 PM   #5125
Tech Master
 
Join Date: Oct 2001
Location: concord Ca
Posts: 1,440
Send a message via AIM to HEYALIGNMENTGUY Send a message via Yahoo to HEYALIGNMENTGUY
Default Re: Pinions and Gears

Quote:
Originally posted by blandv
Can someone please tell me what I need to do to get more top end speed and quickness from the start. I have the following:
centax clutch, mt-12 with tuned pipe, 2 speed, aluminum stock pulleys, stock gearing, front one way. Thanks I'm a little slow.
Try 15T 1st gear pinion( Gonna have to wait untill its available,in the STATES)

45t 2nd spur
HEYALIGNMENTGUY is offline   Reply With Quote
Old 11-09-2002, 05:22 AM   #5126
Tech Initiate
 
Join Date: Jul 2002
Posts: 47
Send a message via AIM to blandv
Default Re: Re: Pinions and Gears

Quote:
Originally posted by HEYALIGNMENTGUY
Try 15T 1st gear pinion( Gonna have to wait untill its available,in the STATES)

45t 2nd spur
I live in Japan. Who makes the 15 gear and the 45T 2nd spur? Do I leave the others stock? Thanks.
blandv is offline   Reply With Quote
Old 11-09-2002, 05:58 AM   #5127
Tech Regular
 
Join Date: Sep 2002
Posts: 326
Default

Newby question. What makes a turbo engine harder to deal with? Is it the different glow plugs needed for different temp conditions? Are there any other complications aside from that, that make turbo engines a hassle?
calimassive is offline   Reply With Quote
Old 11-09-2002, 06:06 AM   #5128
Tech Master
 
Im2lazy's Avatar
 
Join Date: Oct 2002
Location: Hawaii!
Posts: 1,967
Default

well for one thing your not going to find easy to tune sport engines equipped with turbo plugs, but really the only difference is that they seal the engine better than standard plugs (beside the fact that they are illegal for most types of racing). The new OS 12TR turbo will probably super easy to tune because that's the way OS engines are. Simply, there really is no tuning difference.
Im2lazy is offline   Reply With Quote
Old 11-09-2002, 06:14 AM   #5129
Tech Regular
 
Join Date: Sep 2002
Posts: 326
Default

So just to clarify, other than that they are illegal for most types of racing, there not any harder to tune or keep running than non turbo engines?
The reason I want to make sure is cause, I heard that turbo glow plugs are very sensitive compared to non turbo plugs, thus complicating things.

Last edited by calimassive; 11-09-2002 at 06:18 AM.
calimassive is offline   Reply With Quote
Old 11-09-2002, 06:20 AM   #5130
Tech Master
 
Im2lazy's Avatar
 
Join Date: Oct 2002
Location: Hawaii!
Posts: 1,967
Default

the only difference between a standard and a turbo plug is the shape. The coil and hole size stay the same and so are identical to normal plugs in terms of tuning and keeping the engine going. This is saying that the turbo plug is going into an identical engine as the standard plug. (which is usually not the case as turbo engines usually have different crankshaft counterweight designs as well as more aggressive porting)
Im2lazy is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Kyosho VoneR Roller $120 Tag R/C Items: For Sale/Trade 4 08-06-2003 07:22 PM
kyosho VoneR w/ nova, pipe $200 Tag R/C Items: For Sale/Trade 9 07-25-2003 03:09 AM
Kyosho VoneR Macky R/C Items: For Sale/Trade 6 07-31-2002 09:04 AM
Brand new Kyosho VoneR kit $230 Tag R/C Items: For Sale/Trade 0 10-22-2001 02:12 PM
NIB Kyosho VoneR $250 Tag R/C Items: For Sale/Trade 4 10-21-2001 06:39 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 04:33 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net