Like Tree2Likes

Xray T3 2011

Old 08-25-2011, 10:58 AM
  #2956  
Tech Champion
iTrader: (1)
 
Join Date: Feb 2011
Posts: 7,098
Trader Rating: 1 (100%+)
Default

Fred is totally right, but if all he recommended still did not get the weight low enough, get some tp4200 40c packs (263grams)!!!!!!!
bertrandsv87 is offline  
Old 08-25-2011, 11:01 AM
  #2957  
Tech Elite
iTrader: (6)
 
Fred Hubbard's Avatar
 
Join Date: Nov 2001
Location: Inglewood, CA
Posts: 2,721
Trader Rating: 6 (100%+)
Default

Originally Posted by bertrandsv87 View Post
Fred is totally right, but if all he recommended still did not get the weight low enough, get some tp4200 40c packs (263grams)!!!!!!!
Those packs are pretty stout in terms of performance for stock!! They will knock off about 40 - 45 grams as well!
Fred Hubbard is offline  
Old 08-25-2011, 11:05 AM
  #2958  
Tech Champion
iTrader: (1)
 
Join Date: Feb 2011
Posts: 7,098
Trader Rating: 1 (100%+)
Default

I have them running my 3.5t tc4 in 6minutes mains no problem !.....
bertrandsv87 is offline  
Old 08-25-2011, 12:19 PM
  #2959  
Tech Elite
iTrader: (49)
 
haywood's Avatar
 
Join Date: Dec 2008
Location: Minnesota
Posts: 2,871
Trader Rating: 49 (100%+)
Default T32011

Is the extra punch from the battery worth being 40 grams overweight? I was still able to set fast lap of the night sitting at 1420 and not 1380 with my old pack. How many grams will I lose going to a LW body?
haywood is offline  
Old 08-25-2011, 12:26 PM
  #2960  
Tech Master
iTrader: (1)
 
locked's Avatar
 
Join Date: Mar 2010
Location: Toronto
Posts: 1,758
Trader Rating: 1 (100%+)
Default

Originally Posted by haywood View Post
Is the extra punch from the battery worth being 40 grams overweight? I was still able to set fast lap of the night sitting at 1420 and not 1380 with my old pack. How many grams will I lose going to a LW body?
Lightweight bodies are around 20g less than the regular ones. I think most of the performance gain from lw bodies is due to the lower COG it gives the car.
locked is offline  
Old 08-25-2011, 12:42 PM
  #2961  
Tech Champion
iTrader: (12)
 
RC MARKET's Avatar
 
Join Date: Feb 2007
Location: HK
Posts: 6,267
Trader Rating: 12 (100%+)
Default

Yes LW around 20g
RC MARKET is offline  
Old 08-25-2011, 12:44 PM
  #2962  
Tech Elite
iTrader: (56)
 
kman16jr's Avatar
 
Join Date: May 2010
Location: Tampa,Fl.
Posts: 4,046
Trader Rating: 56 (100%+)
Default

how many teeth is on the main belt?anyone know?also im replacing my belt and i want to how tight it needs to be.thank you for any responses.
kman16jr is offline  
Old 08-25-2011, 05:34 PM
  #2963  
Tech Addict
iTrader: (15)
 
kinga's Avatar
 
Join Date: Oct 2010
Posts: 614
Trader Rating: 15 (100%+)
Default

Just went through and replaced all the top deck screws with Titanium screws( 30 m3x6 screws purchased off ebay), shaved about 8 grams, replaced the rear ball diff with xray gear diff, that is about 5 grams lighter than the ball diff, Lightweight body and IP 5800 60c (290grams) batt, it all weighs 1380grams.
I am running spec-r gear diff in the front, replace that with xray gear diff or spool to and could save another 10 or 15 grams.
I switched to alloy wheel nuts from the kit steel ones, they are a couple of grams lighter.
I just switch from the RW racing pinion(6 grams) to a lightweight alloy pinion (2grams)
The car was about 20 grams overweight before, now I can play with chassis weights to get it properly balanced.
I am running Low profile savox servo, speed passion V3 17.5 with SP heatsink and fan, SP GT2 LPF speedy. Have not shortened any wires or any special like that. Our 17.5 class is 1400 grams min weight.
Speaking of which, I just go the hudy chassis balance pins, are there any tricks to using them? the car seems to swing wildly from one side to another,

Last edited by kinga; 08-26-2011 at 01:27 AM.
kinga is offline  
Old 08-26-2011, 01:29 AM
  #2964  
Tech Addict
iTrader: (15)
 
kinga's Avatar
 
Join Date: Oct 2010
Posts: 614
Trader Rating: 15 (100%+)
Default

Originally Posted by kman16jr View Post
how many teeth is on the main belt?anyone know?also im replacing my belt and i want to how tight it needs to be.thank you for any responses.
Start with the kit notch, the very bottom or top hole. After a few meets you will need to tighten it one notch. I have never need to tighten more than one notch.
I just bought a set of the zeppin racing belts of rcmushroom. $7 per belt. Cant argue with that value, they seem ok so far
kinga is offline  
Old 08-26-2011, 11:52 AM
  #2965  
Tech Champion
iTrader: (12)
 
RC MARKET's Avatar
 
Join Date: Feb 2007
Location: HK
Posts: 6,267
Trader Rating: 12 (100%+)
Default

Zeppin
T3 Steering Brace $6.4 Only !
Attached Thumbnails Xray T3 2011-zr-t3002.jpg  
RC MARKET is offline  
Old 08-26-2011, 03:16 PM
  #2966  
Tech Champion
iTrader: (1)
 
Join Date: Feb 2011
Posts: 7,098
Trader Rating: 1 (100%+)
Default

I don't think 17.5/13.5 blinky requires 5800mah to 6000mah. I run a tp3200 40c (208grams) in my tc4 Co27 against 17.5t cars, and have no problem keeping up for more than 6minutes...My tc4 is still overweight at 1465grams , but I won't try to make it any lighter since it can catch 13.5 blinky down the straight....the infield is another matter .....
bertrandsv87 is offline  
Old 08-27-2011, 01:41 AM
  #2967  
Tech Master
iTrader: (21)
 
Sith Lord's Avatar
 
Join Date: Dec 2007
Location: Canberra, ACT, Australia
Posts: 1,405
Trader Rating: 21 (100%+)
Default

Originally Posted by bertrandsv87 View Post
Fred is totally right, get some tp4200 40c packs (263grams)!!!!!!!
Currently looking for some new Lipos - what are the tp4200's several of you are talking about?
Sith Lord is offline  
Old 08-27-2011, 02:03 AM
  #2968  
Tech Elite
iTrader: (30)
 
rx7ttlm's Avatar
 
Join Date: Jul 2004
Location: Portland, OR
Posts: 2,521
Trader Rating: 30 (100%+)
Default

front belt is 171 tooth
rx7ttlm is offline  
Old 08-27-2011, 06:07 AM
  #2969  
Tech Addict
iTrader: (15)
 
kinga's Avatar
 
Join Date: Oct 2010
Posts: 614
Trader Rating: 15 (100%+)
Default

Originally Posted by bertrandsv87 View Post
I don't think 17.5/13.5 blinky requires 5800mah to 6000mah. I run a tp3200 40c (208grams) in my tc4 Co27 against 17.5t cars, and have no problem keeping up for more than 6minutes...My tc4 is still overweight at 1465grams , but I won't try to make it any lighter since it can catch 13.5 blinky down the straight....the infield is another matter .....
I have an IP 4200 40c Lipo and it is markedly slower than my 5800 60c IP lipo.
You have to remember that is not just a capacity rating, but a peak discharge that the MAH rating calculates.
A 4200 40c batt will only discharge 4200 x 40 or 168 amps. 5800 x 60 will discharge 348 amps. A noticeable difference in punch and top speed. It all depends on who you race against and how much they are prepared to spend on batts to go quick
kinga is offline  
Old 08-27-2011, 06:44 AM
  #2970  
Tech Master
 
HarryLeach's Avatar
 
Join Date: Feb 2009
Location: Hampton, VA, USA
Posts: 1,757
Default

Originally Posted by kinga View Post
I have an IP 4200 40c Lipo and it is markedly slower than my 5800 60c IP lipo.
You have to remember that is not just a capacity rating, but a peak discharge that the MAH rating calculates.
A 4200 40c batt will only discharge 4200 x 40 or 168 amps. 5800 x 60 will discharge 348 amps. A noticeable difference in punch and top speed. It all depends on who you race against and how much they are prepared to spend on batts to go quick
That only matters if the motor is pulling a lot of amps from the battery.

Just because a battery CAN supply more juice, doesn't mean the motor is going to benefit from that if it's not pulling as much current.

For me, the higher C ratings are another way to keep temperatures in check on the battery, and allow me to run mod, on the few occasions that I do, without worrying about the battery being up to snuff.

For Blinky Spec classes, a 5800/6000 60c battery is a waste. You may benefit from the higher voltage at the end of the run [due to capacity], but buying based only on the C rating isn't going to do much. I would venture to say a 6000mAh 30c battery would be just as fast throughout a run.

If someone has something more than "it feels so fast" or "it's much faster than my other XYZ battery" in the way of proof [like voltage graphs over a run], I may change my opinion.

I'm not doubting that your 5800 is faster for you, but it's not due to C rating.
HarryLeach is offline  

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.