R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 12-24-2009, 06:30 PM   #976
Tech Elite
 
blis's Avatar
R/C Tech Elite Subscriber
 
Join Date: May 2008
Location: Brisbane
Posts: 3,434
Default TM community / Suppliers

Quote:
Originally Posted by MACHINARIA View Post
We wish you all a Merry Christmas

Sincerely
Anna
www.machinaria.com
adding you all to the list of suppliers @ beachmumsracing.org.au

Please PM if you wish to change/update.

And a merry christmas to you too Anna
__________________
RC Cars: E4/G4/TCX/LAB-C02/T4'15/MM Engines
WEB: Beachmums Racing - MYRCM Race Registration
Media: Amain - RCRacingTV - RedRC - LiveRC - blisx264
blis is offline   Reply With Quote
Old 12-28-2009, 09:09 PM   #977
Tech Master
 
Join Date: Dec 2005
Location: (Holiday, Fl.) (CST.Allentown, Pa.)
Posts: 1,252
Trader Rating: 24 (100%+)
Thumbs up

Quote:
Originally Posted by MACHINARIA View Post
We wish you all a Merry Christmas

Sincerely
Anna
www.machinaria.com
Thanks Anna for the parts.they came in today you guys are the best
RANDY SMOOTH is offline   Reply With Quote
Old 12-30-2009, 07:32 AM   #978
Tech Rookie
 
Join Date: Aug 2007
Posts: 13
Trader Rating: 1 (100%+)
Default RE: Run into problem with Sirio engine & pipe on G4RS09

Hi, I have a problem with my new G4RS 09. I am running on a Sirio Sti3 with 2611 pipe. However the pipe is too long and it hit the steering link and wheels. As for the engine, my clutch bell is actually rubbing against the 2 speed housing and preventing it from engaging.

I had to change my pipe to Skyline which is shorter and filed away my 2 speed housing slightly to clear the clutch bell.

Anyone had any experience with the problem I had? Thanks in advance for all advise.
Wrx Sti is offline   Reply With Quote
Old 12-30-2009, 09:21 AM   #979
Tech Master
 
impalabob64's Avatar
 
Join Date: Jan 2004
Location: florida
Posts: 1,464
Trader Rating: 2 (100%+)
Send a message via AIM to impalabob64
Default YES

Quote:
Originally Posted by Wrx Sti View Post
Hi, I have a problem with my new G4RS 09. I am running on a Sirio Sti3 with 2611 pipe. However the pipe is too long and it hit the steering link and wheels. As for the engine, my clutch bell is actually rubbing against the 2 speed housing and preventing it from engaging.

I had to change my pipe to Skyline which is shorter and filed away my 2 speed housing slightly to clear the clutch bell.

Anyone had any experience with the problem I had? Thanks in advance for all advise.
Yes, i had the same problem i tried to get the mesh really close just got to close,what gearing are you running.As for the Sirio if you run on a med size track get the Nova 2630 with short header then hold it will be a missle PS you may have run time issues,not sure of you driving style.Good luck with the car it is a great car.
__________________
RoninRc.com
MurnanModifiedMotors
Basher BT-4
impalabob64 is offline   Reply With Quote
Old 12-30-2009, 08:51 PM   #980
Tech Elite
 
Chickentrader's Avatar
 
Join Date: Feb 2007
Location: Landsborough, Queensland, Australia.
Posts: 2,142
Trader Rating: 13 (100%+)
Default Comparing internal transmission ratios of G4RS 08 and the G4RSII 09

I have compared the internal transmission ratios of G4RS 08 with the G4RSII 09, and it seems that the G4RSII 09 has a significantly lower roll out, and must have considerably lower top speed (and would most likely scream its head of on a track with long straights). My calculation (see file attachments) show that Dario Balestri had a final roll out of 37.97 mm with a top speed of 81 Km/h at say 37500 revs. Compare this to Stephen Brown’s G4RS 08 at the Mendip Nats with a roll out of 38.63 and a top speed of 91 Km/h using the same revs. The max rollout using factory parts for the G4RS 08 would be about 44.6 with a top speed of about 100km/h, and 37.1 with 84 Km/h top speed for the G4RSII 09.

Could anyone that knows more about this comment? Also I would like to know if anyone detects errors in my calculations.

Editing comment: I have just uploaded it to my website at http://chickentrading.com/. Go "The Garage" and find it there. My security settings will only allow registered users to access such files, unfortunately, but registration is quick and easy.

Kindest regards,
Lars.

Kindest regards,
Lars.
__________________
Support your local RC stores - they support our sport!
Social media – The empowerment of the small individual to enforce democratic process at the expense of dishonesty.

Last edited by Chickentrader; 12-30-2009 at 10:27 PM. Reason: Details of access to calculator.
Chickentrader is offline   Reply With Quote
Old 12-30-2009, 08:53 PM   #981
Tech Elite
 
Join Date: Aug 2004
Location: Pole Position
Posts: 3,173
Trader Rating: 13 (93%+)
Default

you have a mistake in darios car, it says the pinion is 13 but was actually 16
__________________
Serpent 748 TQ | GIMAR Engines
Walter RC HObby | www.walterrchobby.com.au
BlueRC | www.bluerc.net
mrgsr is offline   Reply With Quote
Old 12-30-2009, 10:39 PM   #982
Tech Elite
 
Chickentrader's Avatar
 
Join Date: Feb 2007
Location: Landsborough, Queensland, Australia.
Posts: 2,142
Trader Rating: 13 (100%+)
Default

Quote:
Originally Posted by mrgsr View Post
you have a mistake in darios car, it says the pinion is 13 but was actually 16
You are right, I had it right before I made some changes to the appearance and I must have changed it accidentally without noticing. It is too much trouble to fix right now, and it makes no difference to the 2nd speed gearing which was really my point. I have since edited the original post above, and the calculators can now be accessed and edited frorm my website at http://chickentrading.com/. But you will have to register first.

Kindest regards,
Lars.
__________________
Support your local RC stores - they support our sport!
Social media – The empowerment of the small individual to enforce democratic process at the expense of dishonesty.
Chickentrader is offline   Reply With Quote
Old 12-31-2009, 10:59 AM   #983
afm
Tech Master
 
afm's Avatar
 
Join Date: Nov 2003
Location: lima-peru
Posts: 1,807
Default

According to my electronic gear ratio and speed calculator, G4RS08 has an internal final gear ratio of 2.190, and the G4RS09 has 1.952.

This means you need to place bigger pinions and smaller spurs on the RS09 to equalize speeds with the RS=08.

For example, if you put on an RS09 car a 17-63 and 22-56 combination, you get "almost" same speeds as an RS08 with 16-51 and 21-46 combination. Both at 35,000rpm

AFM
afm is offline   Reply With Quote
Old 12-31-2009, 11:50 AM   #984
Tech Adept
 
roach's Avatar
 
Join Date: Aug 2009
Location: the nearest track
Posts: 141
Send a message via Yahoo to roach
Thumbs up RSII09

great info guys keep it coming...i'd really like to see the magic cars on top this year!.
roach is offline   Reply With Quote
Old 12-31-2009, 12:10 PM   #985
Tech Elite
 
rmdhawaii's Avatar
 
Join Date: Feb 2006
Posts: 3,804
Trader Rating: 4 (100%+)
Default

Quote:
Originally Posted by Wrx Sti View Post
Hi, I have a problem with my new G4RS 09. I am running on a Sirio Sti3 with 2611 pipe. However the pipe is too long and it hit the steering link and wheels.
I don't think I've ever read someone having this problem on any car. Got a photo?
__________________
Nitro Knowledge Base: http://nitrokb.netne.net
My YouTube Channel: http://www.youtube.com/nitrokb -> Lots of on-road nitro & eletric action + some off-road as well
My Flickr Photostream: http://www.flickr.com/photos/nitrokb/
Kyosho V-ONE RRR WC (x2) \ XRAY T2'007 \ Also owned: XRAY NT1 & Mugen MTX-4
rmdhawaii is offline   Reply With Quote
Old 12-31-2009, 02:53 PM   #986
Tech Regular
 
getpip's Avatar
 
Join Date: Jan 2008
Posts: 369
Default

Quote:
Originally Posted by Chickentrader View Post
I have compared the internal transmission ratios of G4RS 08 with the G4RSII 09, and it seems that the G4RSII 09 has a significantly lower roll out, and must have considerably lower top speed (and would most likely scream its head of on a track with long straights). My calculation (see file attachments) show that Dario Balestri had a final roll out of 37.97 mm with a top speed of 81 Km/h at say 37500 revs. Compare this to Stephen Brown’s G4RS 08 at the Mendip Nats with a roll out of 38.63 and a top speed of 91 Km/h using the same revs. The max rollout using factory parts for the G4RS 08 would be about 44.6 with a top speed of about 100km/h, and 37.1 with 84 Km/h top speed for the G4RSII 09.

Could anyone that knows more about this comment? Also I would like to know if anyone detects errors in my calculations.

Editing comment: I have just uploaded it to my website at http://chickentrading.com/. Go "The Garage" and find it there. My security settings will only allow registered users to access such files, unfortunately, but registration is quick and easy.

Kindest regards,
Lars.

Kindest regards,
Lars.
Yes I had noticed that the car is geared on the short side.

Mine came with a little card with the FDRs on ... whe I compared this to those on the NT1 and the MTX they appeared to be significantly shorter.

I do also notice however that Kfactory have released some different sized pulleys.
Have a look at them Lars and come up with a decent ratio for us
__________________
------------------------
Check out my blog: www.pipskiracing.blogspot.com
------------------------
getpip is offline   Reply With Quote
Old 12-31-2009, 03:01 PM   #987
Tech Regular
 
getpip's Avatar
 
Join Date: Jan 2008
Posts: 369
Default

Quote:
Originally Posted by Wrx Sti View Post
Hi, I have a problem with my new G4RS 09. I am running on a Sirio Sti3 with 2611 pipe. However the pipe is too long and it hit the steering link and wheels. As for the engine, my clutch bell is actually rubbing against the 2 speed housing and preventing it from engaging.

I had to change my pipe to Skyline which is shorter and filed away my 2 speed housing slightly to clear the clutch bell.

Anyone had any experience with the problem I had? Thanks in advance for all advise.
Hi..
I have had both problems. You have to be very careful with your choice of gears and mesh them carefully.
The (also common) pipe problem doesnt help as it tends to tempt you to angle the motor slightly.
I was using the 2607 pipe and had this problem unless the tyres were well under 60mm.
Im now going to try the GRP pipe as Im told it works well with the piccos.
__________________
------------------------
Check out my blog: www.pipskiracing.blogspot.com
------------------------
getpip is offline   Reply With Quote
Old 12-31-2009, 04:06 PM   #988
Tech Elite
 
Chickentrader's Avatar
 
Join Date: Feb 2007
Location: Landsborough, Queensland, Australia.
Posts: 2,142
Trader Rating: 13 (100%+)
Default

Quote:
Originally Posted by afm View Post
According to my electronic gear ratio and speed calculator, G4RS08 has an internal final gear ratio of 2.190, and the G4RS09 has 1.952.

This means you need to place bigger pinions and smaller spurs on the RS09 to equalize speeds with the RS=08.

For example, if you put on an RS09 car a 17-63 and 22-56 combination, you get "almost" same speeds as an RS08 with 16-51 and 21-46 combination. Both at 35,000rpm

AFM
Thanks advising me of this important error in my calculations. In regards to the difference in your calculations and mine; how do you calculate the ratios? I have divided (Pinion/spur) and multiplied it with (midshaft pulley/diff pulley) e.g. G4RSII 09 ((22/57)=0.386 x (21/41)=0.5120)=0.19769. This is represents the number of turns that is transmitted to the wheel axel for each revolution of the engine the way that I did it. I apologise for the error, but I’ll correct it straight away if you could show me how to calculate it correctly.

In regards to the matter of the difference of the G4RS 08 and the G4RSII 09; since my calculations implied that there was no option to gear the G4RSII 09 to the extent of that the G4RS 08, I queried whether in fact it wouldn’t make the engine “scream its head off” on open tracks with long straights. It was never meant to say that you couldn’t come up with a close match using the G4RS 08’s lower gearing option. I have since become aware by a post from getpip that there are more options, so I stand corrected with this as well.

I would appreciate very much if you could show me how to correct my calculations as soon as possible so I can correct the calculator.

Kindest regards,
Lars.
__________________
Support your local RC stores - they support our sport!
Social media – The empowerment of the small individual to enforce democratic process at the expense of dishonesty.
Chickentrader is offline   Reply With Quote
Old 12-31-2009, 04:19 PM   #989
Tech Elite
 
Chickentrader's Avatar
 
Join Date: Feb 2007
Location: Landsborough, Queensland, Australia.
Posts: 2,142
Trader Rating: 13 (100%+)
Default

Quote:
Originally Posted by getpip View Post
Yes I had noticed that the car is geared on the short side.

Mine came with a little card with the FDRs on ... whe I compared this to those on the NT1 and the MTX they appeared to be significantly shorter.

I do also notice however that Kfactory have released some different sized pulleys.
Have a look at them Lars and come up with a decent ratio for us
Thanks for that tip, I was not aware of this. Where do you find the information? I'll have a look at it very soon. Changing the mid shaft pulleys to one pip bigger would satisfy my concerns.

It is also interesting to note that the front/rear drive ratio difference is only 1.2% using the G4RSII 09 options that I were aware of; while the G4RS 08 comes up with 4.5% difference using the 20t and 27t side pulleys. My XRay 05 has a difference of 6.25% using rubber tires that have the same diameter (most drivers use smaller fronts with foams, so I would have thought that the gas car's ratios would be higher).

You can access or download the calculator from "The Garage" at http://chickentrading.com/ if you register, and check the ratios for any car using any option.

Kindest regards,
Lars.
__________________
Support your local RC stores - they support our sport!
Social media – The empowerment of the small individual to enforce democratic process at the expense of dishonesty.
Chickentrader is offline   Reply With Quote
Old 12-31-2009, 04:29 PM   #990
Tech Master
 
Sp Racer's Avatar
 
Join Date: Dec 2002
Location: Melbourne, Australia
Posts: 1,624
Trader Rating: 8 (100%+)
Default

"theoretical" top speed is generally irrelevant.


In my experience, It's more about how quickly the car goes from point A to point B.


You'll find that even on the shortest gearing, the RS09 will not be far off the gearing required to suit the rpm range that today's engines put out.
Sp Racer is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Team Magic G4 Motorman Nitro On-Road 11759 12-09-2016 06:09 AM
‘FWR Racing Season’ FWR Northwest Racers 11302 08-23-2015 07:38 PM
Team Magic G4 + EVO afm Nitro On-Road 421 08-05-2011 01:31 PM
RC equipments for Sale ijnek Malaysian R/C Racers 22836 09-09-2009 02:50 PM
Just Hobby 1/10 Onroad GP Sedan Challenge Race 2( 08 March 2009 ) justhobby Singapore R/C Racers 28 04-08-2009 10:59 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 03:24 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