R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 08-14-2007, 09:01 AM   #46
Tech Adept
 
Rawz's Avatar
 
Join Date: Oct 2006
Location: Brasilia, Brazil
Posts: 116
Default

Hey guys. I got a RB C6BB T7.
Rbs are NR based, right ?(I read it here somewhere, I guess)
So, one can use NR glow plugs, no problem at all ?
Thankx for the insight.
Rawz is offline   Reply With Quote
Old 08-14-2007, 01:41 PM   #47
Tech Elite
 
rezenclowd3's Avatar
 
Join Date: May 2006
Location: Solvang, CA
Posts: 2,367
Trader Rating: 17 (100%+)
Send a message via AIM to rezenclowd3
Default

No, they are not NR based, but I believe they use Novarossi's facilities to manufacture the engines. NR plugs work....but as with any high dollar engine, why not use what was made for it?
__________________
OOMSGFX.COM (no longer painting, but take a look for fun!), Roadrunners RC Club
"Racing drivers have balls, unfortunately, none of them are crystal" (David Coulthard)
"I believe the average IQ of a NASCAR fan is only marginally above the things that hit the windscreen during the race. "
rezenclowd3 is offline   Reply With Quote
Old 08-14-2007, 01:50 PM   #48
Tech Adept
 
Join Date: May 2007
Location: SoCal Inland Empire
Posts: 140
Trader Rating: 5 (100%+)
Default

A.C. You're asking a very difficult question. The great .21's like the vspec & C6 are have quite a bit of torque but still don't hold a candle compared to a crazy .28 like the TM928 or the nova 528xr. The .21's will give you smoother bottom better top and more linear powerband. The .28's give an explosive powerband. The newer ones like the upcoming OS .28 might change the rules though as engine manufacturers are now working on smoother .28's. Also, the weight of your truggy has a huge influence on your choice of engine. On the heavier 10+lbs truggys a .28 might be a better choice. My 11lb CEN didn't work that well in a technical track with a .21 My 9lb 8T OTOH is able to work very well with a good .21 engine in it.

Nova plugs work well in the C6BB7T
I use #6 with 30%
Use #5 for breakin or with hot & humid or cold weather for less flameouts (tradeoff is lower durability)
__________________
Losi 8ight-T 1.0 OS Speed JR 9000S/T
Losi 8ight 1.0 C6BB7T 2045 086 Hitec 5997TG/JR 9000S
Losi 22 Tekin RSpro 8.5/JR9000S
All controlled by 3PK/FASST
magbarn is offline   Reply With Quote
Old 08-14-2007, 05:56 PM   #49
A.C
Tech Regular
 
A.C's Avatar
 
Join Date: Jul 2007
Location: Pasir ris
Posts: 255
Trader Rating: 1 (100%+)
Send a message via MSN to A.C
Default

magbarn,

thks for the insight.

but as u said the tm928 is a monster but quite rough to handle as i does not have a smoother powerband, i m intending to use on a technical track.

that's the reason why it is givng me a headache...

c6bb 7t or tm928... confused.

A/c
A.C is offline   Reply With Quote
Old 08-14-2007, 06:26 PM   #50
Tech Adept
 
Rawz's Avatar
 
Join Date: Oct 2006
Location: Brasilia, Brazil
Posts: 116
Default

Ok, thankx.
The NR plugs are a lot easier to get here.
Rawz is offline   Reply With Quote
Old 08-14-2007, 08:02 PM   #51
Tech Elite
 
Ultraspeed84's Avatar
 
Join Date: Mar 2006
Posts: 2,072
Trader Rating: 45 (100%+)
Default

does anyone make a .28 motor that will run 7 to 8 mins on a tank? in a truggy? got the c6 for the buggy now looking for the truggy..
Ultraspeed84 is offline   Reply With Quote
Old 08-14-2007, 08:14 PM   #52
Tech Regular
 
KForce's Avatar
 
Join Date: Jan 2005
Posts: 306
Trader Rating: 2 (75%+)
Default

ppl on the grid are claiming 10 mintues with a 150cc tank and the new OS .28
__________________
Team TQ Fuel

OS Speed Engines
Futaba
Panther Tires

CRCRC Raceway Webmaster
FullThrottle Raceway Webmaster
KForce is offline   Reply With Quote
Old 08-15-2007, 08:07 AM   #53
Tech Master
 
RBMike's Avatar
 
Join Date: Jan 2007
Location: Santa Clara CA
Posts: 1,264
Default

Quote:
Originally Posted by Ultraspeed84 View Post
does anyone make a .28 motor that will run 7 to 8 mins on a tank? in a truggy? got the c6 for the buggy now looking for the truggy..
OK, now just get another C6 for your truggy.
RBMike is offline   Reply With Quote
Old 08-15-2007, 04:45 PM   #54
Tech Elite
 
GHETTOTEACHER's Avatar
 
Join Date: Feb 2007
Location: Philadelphia
Posts: 2,162
Default

Quote:
Originally Posted by Ultraspeed84 View Post
does anyone make a .28 motor that will run 7 to 8 mins on a tank? in a truggy? got the c6 for the buggy now looking for the truggy..
My 928 in my Jammin truggy gets 7 to 8 mins run all the time. Mine at full run gets 10.14 cc per min.
__________________
Herolin <---Traded my Airtronics for an Ipad and Laptop...
Soon to be GHETTOPRINCIPAL..
GHETTOTEACHER is offline   Reply With Quote
Old 08-15-2007, 05:00 PM   #55
Tech Elite
 
GHETTOTEACHER's Avatar
 
Join Date: Feb 2007
Location: Philadelphia
Posts: 2,162
Default

Quote:
Originally Posted by A.C View Post
magbarn,

thks for the insight.

but as u said the tm928 is a monster but quite rough to handle as i does not have a smoother powerband, i m intending to use on a technical track.

that's the reason why it is givng me a headache...

c6bb 7t or tm928... confused.

A/c
I ran a S7 in my truggy while I was waiting for my 928. The S7 and C6 I think are excellent motors to run. My original motor I was running on my CRT was the RB 728. The 728 was a rough motor and had great torque. I ran that motor on technical tracks and did alright. When I dropped in my S7 and ran the same tracks, it was very controllable and the motor screamed when flying down the straights. But for me, I missed the instant power and torque of the .28 . When my 928 got to me, I was in love!! That motor would scream and was very linear. Power was on tap all the time and I had mileage that was very like the .21's. The 928 will rip rims from tires all day but I deal with it! The 928 is a relatively calm motor, until you fully pull that trigger! I firmly believe that if you pick any RB or Novarossi be it a .21 C6,S7 or TM928, 528xs you will be very happy!!
__________________
Herolin <---Traded my Airtronics for an Ipad and Laptop...
Soon to be GHETTOPRINCIPAL..
GHETTOTEACHER is offline   Reply With Quote
Old 08-15-2007, 07:38 PM   #56
A.C
Tech Regular
 
A.C's Avatar
 
Join Date: Jul 2007
Location: Pasir ris
Posts: 255
Trader Rating: 1 (100%+)
Send a message via MSN to A.C
Default

Quote:
Originally Posted by GHETTOTEACHER View Post
I ran a S7 in my truggy while I was waiting for my 928. The S7 and C6 I think are excellent motors to run. My original motor I was running on my CRT was the RB 728. The 728 was a rough motor and had great torque. I ran that motor on technical tracks and did alright. When I dropped in my S7 and ran the same tracks, it was very controllable and the motor screamed when flying down the straights. But for me, I missed the instant power and torque of the .28 . When my 928 got to me, I was in love!! That motor would scream and was very linear. Power was on tap all the time and I had mileage that was very like the .21's. The 928 will rip rims from tires all day but I deal with it! The 928 is a relatively calm motor, until you fully pull that trigger! I firmly believe that if you pick any RB or Novarossi be it a .21 C6,S7 or TM928, 528xs you will be very happy!!
wow thats is great... 'power on tap' i am in love just hearing u raving abt the tm928... must get me 1 of those in my CRT.
A.C is offline   Reply With Quote
Old 08-16-2007, 09:48 PM   #57
Tech Adept
 
Join Date: Sep 2006
Posts: 167
Trader Rating: 6 (100%+)
Default

There is a place called champs r/c that sells the speed for $380 shipped and you'll have it in about a week.
Ghost06 is offline   Reply With Quote
Old 08-17-2007, 02:46 AM   #58
A.C
Tech Regular
 
A.C's Avatar
 
Join Date: Jul 2007
Location: Pasir ris
Posts: 255
Trader Rating: 1 (100%+)
Send a message via MSN to A.C
Default

Quote:
Originally Posted by Ghost06 View Post
There is a place called champs r/c that sells the speed for $380 shipped and you'll have it in about a week.
can i have the website?
A.C is offline   Reply With Quote
Old 08-17-2007, 08:59 AM   #59
Tech Adept
 
Join Date: Sep 2006
Posts: 167
Trader Rating: 6 (100%+)
Default

I'm tring to get the link give me a min. Or keywork champs R/C it's in Jap.
Ghost06 is offline   Reply With Quote
Old 08-18-2007, 08:04 PM   #60
Tech Master
 
MassiveMods's Avatar
 
Join Date: Jan 2006
Location: Sydney
Posts: 1,977
Default

Hey Guys ,

this thread was brought to my attention and asked my opinion. Firstly leaving my status with Go tech aside ill make comments based purely on unbiased experience .

The engines in question are the RB , OS Speed and Go Tech .

RB Used to be hands down the best long lasting engines on the market, they hit their peak around 2003 to mid 2006. After that they went down hill. I base this on the number of them that come in for repairs. Problems are weird flame outs, and carb problems, also dags left on sleeves from manufacture that pre maturely wear pistons. Dont get me wrong , when you get a good one they rock, but who wants to make a high priced bet ?

OS Speed , one word WOW ! Very well designed engine ! power is insane ! but i fear the rear bearing and rod quality . I hope they have improved this because this is the only thing that hampers an other wise outstanding engine.
And for the price of one and replacement parts , they would want to be durable ! But remember the OS Speed is a factory designed and modified motor, so its been specd out to go as hard as it can , and it does .

Go Tech , This is a great performer and well priced engine. bearing and rod quality are amazing ! Carb and Crank case are world class ! and for the price of one of the other brand engines, you can get 2 Go Tech's . Replacement parts are realistically priced. These engines arent cheap, they are well priced . This is a compliment to the factory and management of GO Tech . exceptionally well made items at a realistic price. NOW if we resort to a modified GO Tech then watch out ! Our team Driver John Grupillo had to limit the EPA on his throttle to 60% . The engine had way too much and this leads me to my next point.
Sometimes a slower engine will get better lap times. While Grunt can appear to be fast , what makes a good lap time is a good race line. If you over shoot corners because of too much power you can lose a second on each corner and considering there are between 10 to 15 corners in most off road tracks you can calculate how much time you lose or stand to gain with a good race line.
Another example is one of our other team drivers Steve Toon , we had one of our Go Tech dusted from a filter pop off, we didnt have a spare one but we had an old Nova P5 that still went well . The Nova had slightly more take off than the Go . Toon thought it felt faster and it did look faster out there, but when we compared his lap times the go tech was 1.5 to 2 seconds faster on average. Why ? well we think its because of the linear power band, the P5 is known for its bottom end. But the Go had a more usable power band for this particular driver.

Go Tech fuel economy .21 7 Port with 150 ml tank 13 mins 15 seconds
.21 5 and 7 port with 125 ml tanks 11 to 11.5 mins on average

If you want to know more on Go Tech and other nitro engine set ups check my forum

http://massivemods.com/lib/phpBB2/

Cheers MM
__________________
Engine development manager Rifling Pty Ltd. Nitro fuel designer : Neo + World record title holder 2012 Austalian Nationals 147.6 KPH , 1 st 2 nd and TQ Australian National Buggy titles 2012. Victorian State title 2012 Neo + , South Australian state title ON and Off Road 1/8 2012 Neo + :-) QLD State Titles 2012 1st buggy & trruggy + TQ Neo + MG66 RX7 1st Sportsman Class Truggy QLD State Titles 2012 !! Nitro Addicts Australia . com
MassiveMods is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
opinions please! which is better the o.s speed vspec or the eb modded vspec? downunder23 Offroad Nitro Engine Forum 23 11-29-2015 02:37 PM
New GRP .21 / Modded VSPec / OS Speed for RC8 - Total Indecision Reznor88 Nitro Off-Road 11 06-03-2008 02:16 PM
Modded novarossi rec 21/modded sts d21B ckeebler R/C Items: For Sale/Trade 3 12-07-2007 04:11 PM
Novak GTB Brushless 4 cell speed spectrum speed controller. jland R/C Items: For Sale/Trade 2 10-21-2007 01:37 PM
modded revo trade for modded savage savagelover R/C Items: For Sale/Trade 6 08-13-2006 10:30 AM



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 01:05 AM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net