R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 03-05-2010, 02:30 PM   #12991
Tech Master
 
Join Date: Sep 2007
Location: Helmond
Posts: 1,544
Default

Why is chosen for a Boost of 55 and not for 50, 60 or higher?
__________________
http://www.mikky32.com
Tekin RS pro
TOP racing Photon
Tekin Redline 10,5
Protoform LTC-R
mikky32 is offline   Reply With Quote
Old 03-05-2010, 02:30 PM   #12992
Tech Elite
 
theisgroup's Avatar
 
Join Date: Apr 2002
Posts: 3,191
Trader Rating: 10 (100%+)
Default

Quote:
Originally Posted by TeamTekin View Post
We are stuck with some nerd math restrictions to make it happen fast enough. Move the top around a little and all the bottom rpms can be achieved. As the top rpm goes up and down the start rpms move with it.

An observant person might notice the pattern: 128, 256, 512, 1024, 2048.... Look familiar from computer specs?

Actually there is some other math in there so it is not really that obvious now that I look at and there are some gaps that are hard to achieve. But the reasoning for the choices is valid.
phew!!! I thought I was a nerd and then i saw this and could not figure out what the relationship was with the start RPM. lol
__________________
yang lai

Team Tamale | Team Tekin | RCAmerica | Speedmerchant | Speedzone RC | EA Motorsports | Ko Propo USA | eXpress Motorsports | Parma/PSE
theisgroup is offline   Reply With Quote
Old 03-05-2010, 02:50 PM   #12993
Tech Adept
R/C Tech Elite Subscriber
 
Join Date: Mar 2010
Posts: 198
Default

Quote:
Originally Posted by theisgroup View Post
phew!!! I thought I was a nerd and then i saw this and could not figure out what the relationship was with the start RPM. lol
I made a list of available RPM:s. You will notice a limited availability of values between 3-5k.

End S1 S2 S3
9000 2641 4084 5619
10000 2700 4200 5990
11000 2790 4450 6338
12000 2850 4600 6600
13000 2900 4747 6950
14000 2950 4873
15000 2992 4989
16000 3030 5096
17000 3064 5192
18000 3095 5282
19000 3124 5365
20000 3149 5442
22000 3195 5580
25000 3252 5757
30000 3324 5986
32000 3347 6060
goos is offline   Reply With Quote
Old 03-05-2010, 03:04 PM   #12994
Tech Elite
 
carcrazy699's Avatar
 
Join Date: Jan 2008
Location: SoCal
Posts: 2,465
Trader Rating: 48 (100%+)
Default

ok guys i am having a issue. well i think its a issue.

i have the cyclone s with a 96 spur and 40 pinion and a orion vortex 17.5 motor. on the esc i have the turbo maxed out and the timming set at 50 and a guy with the same motor and esc is pulling on me hard on the straights. we are both running 5000mah 40c batts only difference is he has a cyclone tc.

on my cyclone i changed the pullies to 17t instead of the stock 16t. other than that i have no idea why he is still pulling on my so i figured its eaither something im not doing right on the esc or my gearing.

oh and my start rpm is 2,xxx and ending is 10000 delay is set at .1 and turbo ramp is set at 2.0

also seems like he has way more power on the infeild so i was kinda thinking maybe my motor is giving up?
carcrazy699 is offline   Reply With Quote
Old 03-05-2010, 03:13 PM   #12995
Tech Fanatic
 
bukil's Avatar
 
Join Date: Feb 2006
Location: BenTooWrah
Posts: 998
Trader Rating: 39 (100%+)
Default

Quote:
Originally Posted by carcrazy699 View Post
ok guys i am having a issue. well i think its a issue.

i have the cyclone s with a 96 spur and 40 pinion and a orion vortex 17.5 motor. on the esc i have the turbo maxed out and the timming set at 50 and a guy with the same motor and esc is pulling on me hard on the straights. we are both running 5000mah 40c batts only difference is he has a cyclone tc.

on my cyclone i changed the pullies to 17t instead of the stock 16t. other than that i have no idea why he is still pulling on my so i figured its eaither something im not doing right on the esc or my gearing.

oh and my start rpm is 2,xxx and ending is 10000 delay is set at .1 and turbo ramp is set at 2.0

also seems like he has way more power on the infeild so i was kinda thinking maybe my motor is giving up?
Is he also running the same esc settings and same FDR??
bukil is offline   Reply With Quote
Old 03-05-2010, 03:19 PM   #12996
Tech Elite
 
carcrazy699's Avatar
 
Join Date: Jan 2008
Location: SoCal
Posts: 2,465
Trader Rating: 48 (100%+)
Default

yes him and his dad are running the tekin rs. his dad et the esc up for me at the track and he maxed out the turbo and he put the timing up to 50.

he told me to gear it at 40 pinion and 96 spur but it seems like my fdr is way high

im not sure what his fdr was but his dad did all the calculations for my fdr.

i went onto comeseethis.com and his site says im way undergeared. it says i should be running a 96 spur with a 67 pinion but that seems like it will make motor temps sky rocket
carcrazy699 is offline   Reply With Quote
Old 03-05-2010, 03:36 PM   #12997
Tech Elite
 
theisgroup's Avatar
 
Join Date: Apr 2002
Posts: 3,191
Trader Rating: 10 (100%+)
Default

Quote:
Originally Posted by goos View Post
I made a list of available RPM:s. You will notice a limited availability of values between 3-5k.

End S1 S2 S3
9000 2641 4084 5619
10000 2700 4200 5990
11000 2790 4450 6338
12000 2850 4600 6600
13000 2900 4747 6950
14000 2950 4873
15000 2992 4989
16000 3030 5096
17000 3064 5192
18000 3095 5282
19000 3124 5365
20000 3149 5442
22000 3195 5580
25000 3252 5757
30000 3324 5986
32000 3347 6060
i must be dense. how does that relate to 1s math?
__________________
yang lai

Team Tamale | Team Tekin | RCAmerica | Speedmerchant | Speedzone RC | EA Motorsports | Ko Propo USA | eXpress Motorsports | Parma/PSE
theisgroup is offline   Reply With Quote
Old 03-05-2010, 04:15 PM   #12998
Tech Master
 
Join Date: Sep 2007
Location: Helmond
Posts: 1,544
Default

Quote:
Originally Posted by carcrazy699 View Post
yes him and his dad are running the tekin rs. his dad et the esc up for me at the track and he maxed out the turbo and he put the timing up to 50.

he told me to gear it at 40 pinion and 96 spur but it seems like my fdr is way high

im not sure what his fdr was but his dad did all the calculations for my fdr.

i went onto comeseethis.com and his site says im way undergeared. it says i should be running a 96 spur with a 67 pinion but that seems like it will make motor temps sky rocket
I think that it can be the rotor or the FDR.
Is he using the same internal gearing as you?
As he still uses the 16 than he has an other FDR.
I thought it was 16 and 18 to choose out. I didn't now that there was a 17 also.
Not each motor is as fast as the other. Is the motor temp the same?
Your rotor can also be the problem.
That loses power in time and it loses faster his power as it gets to hot.
Ask if you can try his motor and that they use your motor.
As that isn't the problem, than it is the FDR or your car runs heavier than there car.
__________________
http://www.mikky32.com
Tekin RS pro
TOP racing Photon
Tekin Redline 10,5
Protoform LTC-R
mikky32 is offline   Reply With Quote
Old 03-05-2010, 04:18 PM   #12999
Tech Regular
 
Join Date: Oct 2005
Location: Oshkosh, Wisconsin
Posts: 342
Trader Rating: 33 (100%+)
Default Cyclone FDR

Quote:
Originally Posted by carcrazy699 View Post
yes him and his dad are running the tekin rs. his dad et the esc up for me at the track and he maxed out the turbo and he put the timing up to 50.

he told me to gear it at 40 pinion and 96 spur but it seems like my fdr is way high

im not sure what his fdr was but his dad did all the calculations for my fdr.

i went onto comeseethis.com and his site says im way undergeared. it says i should be running a 96 spur with a 67 pinion but that seems like it will make motor temps sky rocket
The Cyclone TC has a 39 tooth diff pulley and a 18 tooth layshaft pulley, so this might account for your difference in speed if you have a 17 tooth layshaft pulley. With 39T diff pulley, 17T layshaft pulley, 96T spur and 40T pinion, your FDR is 5.506 while the TC with the same except for 18T layshaft pulley has a 5.2 FDR.
Doog is offline   Reply With Quote
Old 03-05-2010, 04:52 PM   #13000
Tech Master
 
Join Date: Sep 2007
Location: Helmond
Posts: 1,544
Default

I have a question. Maybe a crazy question but I saw the settings on the GM speedo and as I count that timing, than I see a total timing of 90.
I don't now how it works but I started to count the Timing in the Tekin.
This is what I came op with.

Boost max = 55
Turbo max = 20
Motor timing Tekin = 24
plus the 15 of timing in each motor as that still counts.

With all together I get a total timing of 114.
I used up to 80 total timing my self and that gave no problems.

Till how far can you time a motor?
Is this limited to 90 or 100 or can you go way over it?
Or is the motor divided in 3 parts and is the max timing <120 degrees?


And why is the Boost 55?
Mamba has also a timing of 55. Why not 60 or so?

Maybe crazy questions but I am thinking about it.
Is there a reason that Tekin and Mamba both use 55?
__________________
http://www.mikky32.com
Tekin RS pro
TOP racing Photon
Tekin Redline 10,5
Protoform LTC-R
mikky32 is offline   Reply With Quote
Old 03-05-2010, 05:11 PM   #13001
Tech Elite
 
theisgroup's Avatar
 
Join Date: Apr 2002
Posts: 3,191
Trader Rating: 10 (100%+)
Default

Quote:
Originally Posted by carcrazy699 View Post
i have the turbo maxed out and the timming set at 50
how do you guys run setups like this? I can barely get 50timing and 10 turbo in a 1/12, how can you do max turbo and 50 boost and not melt down the motor? amazing!!!
__________________
yang lai

Team Tamale | Team Tekin | RCAmerica | Speedmerchant | Speedzone RC | EA Motorsports | Ko Propo USA | eXpress Motorsports | Parma/PSE
theisgroup is offline   Reply With Quote
Old 03-05-2010, 05:12 PM   #13002
Tech Regular
 
Join Date: Dec 2008
Posts: 459
Trader Rating: 9 (100%+)
Default

billythekid is offline   Reply With Quote
Old 03-05-2010, 05:32 PM   #13003
Tech Elite
 
LOW ET's Avatar
 
Join Date: Dec 2007
Location: cleveland, ohio
Posts: 2,881
Trader Rating: 97 (100%+)
Default

so has anyone figured out a lipo/rubber touring car setup for a lrp x12 13.5 on a 90'X40' carpet track?
LOW ET is offline   Reply With Quote
Old 03-05-2010, 06:12 PM   #13004
Tech Champion
 
tc3team's Avatar
 
Join Date: Mar 2006
Location: UK
Posts: 6,151
Default

Quote:
Originally Posted by TeamTekin View Post
We still like 2k to 4k start rpm so that we have some of the boost engaged at the slowest part of the corner. With the higher end rpm some of the boost is turned off in the corner and then added back in as you accel out of the corner.

4k start rpm and 12k end rpm is a good moderate start point. 4k to 20K makes sense on paper, but the track is what matters and we are hearing a wide range of what works.



Agreed we need at least a moderate starting point. We are still gathering and learning at this point. There are a lot of ways to use the adjustments for tweaking, but we do have a pretty good idea now in most setups.

In general you can get away with more timing with lighter loads. If you overtime or overgear for the amount of timing it will lose rip. As the cars get heavier, like SC or the real pigs SC 4x4 at 6lbs or even TC compared to a lighter 1/12 or wgt, you can not use as much timing or have to add it at higher rpms. IE 10k start rpm and 25k end rpm with a slow turbo ramp and long delay.

Adding turbo late can give you that top speed spool out. Adding turbo early can effect the low end rip. A guy that rolls into the throttle can use a 0 turbo delay and control when it kicks in with throttle control. Trigger slammers need to consider turbo the same as boost since it is always on, or use a longer delay.

No single answer for everyone which is part of the fun.

Tekin Prez
Once again, great information in simple terms.

Thank you
__________________
Fusion Hobbies / www.horshamrc.org

The wife stops me being sane and the r/c stops me from going insane....
tc3team is offline   Reply With Quote
Old 03-05-2010, 07:34 PM   #13005
Tech Addict
 
Akudou's Avatar
 
Join Date: Jul 2009
Location: KL
Posts: 749
Trader Rating: 2 (100%+)
Default

Can the RS Pro be able to run sensorless motor?
Akudou is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Tekin Redline RS Sensored ESC and motors, opinions for offroad? Cain Electric Off-Road 4230 06-07-2015 04:38 PM
Sensored vs. Sensorless lemansracer Electric On-Road 71 02-14-2009 03:19 AM
New Tekin Redline Sensored Motors are Roar Legal! Randy_Pike Electric On-Road 3 08-05-2008 02:08 AM
Tekin Redline Sensored 10.5 HUCKMAN Electric On-Road 6 07-15-2008 08:50 PM
sensored vs sensorless bprocket Rookie Zone 5 05-16-2008 09:38 AM


Tags
v203, vegas 2.0


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 07:20 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