Community
Wiki Posts
Search
Like Tree2991Likes

1/12 forum

Thread Tools
 
Search this Thread
 
Old 04-27-2005 | 12:44 PM
  #12841  
jag's Avatar
jag
Tech Master
 
Joined: Feb 2004
Posts: 1,168
From: So. Florida
Default

Originally posted by odpurple
3700 cells are .020" larger in diameter than 3300's. The biggest difference is longer run time.
No more power? Does longer run time allow you to do other things to make the car faster... gearing, tire height, etc?
jag is offline  
Old 04-27-2005 | 12:46 PM
  #12842  
Hyperform Racing's Avatar
Tech Master
 
Joined: Jan 2005
Posts: 1,195
From:
Default

Good average voltage numbers are high 1.17s like 1.178-1.179. Excellent average voltage numbers are 1.18+. Good internal resistance numbers are 2.4-2.5. Excellent internal resistance numbers are 2.2-2.3. Glad I could help...
Hyperform Racing is offline  
Old 04-27-2005 | 12:53 PM
  #12843  
odpurple's Avatar
Tech Elite
 
Joined: Dec 2002
Posts: 2,192
From: San Francisco
Default

Originally posted by jag
No more power? Does longer run time allow you to do other things to make the car faster... gearing, tire height, etc?
The biggest difference I've found in running 3700's is that the race is over before they start to tail off. That means you will run 8 mins faster than you would with 3300's with everything else the same. I run the same gearing for both types of battery.
We adjust our gearing to get the best punch on the infield combined with best speed on the straight since run time (for stock) is not an issue with either type of battery.
odpurple is offline  
Old 04-27-2005 | 01:22 PM
  #12844  
crimson eagle's Avatar
Tech Fanatic
 
Joined: Jun 2003
Posts: 841
From: Nor Cal
Default

I was using the t-fource battery retainers when I ran the 3700's and it seemed fine. I have since been told that the car handles better if you don't use the retainers but I don't want to rip my labels off with tape. Any ideas about that anyone? I was told to use clear nail varnish or superglue. I have tried them both and don't really like either.

Chris
crimson eagle is offline  
Old 04-27-2005 | 01:27 PM
  #12845  
Hyperform Racing's Avatar
Tech Master
 
Joined: Jan 2005
Posts: 1,195
From:
Default

Shrink wrap the cells. You can also use speedmerchant battery tape which only sticks to itself.
Hyperform Racing is offline  
Old 04-27-2005 | 01:28 PM
  #12846  
Thraex's Avatar
Tech Addict
 
Joined: Nov 2004
Posts: 527
Default

Put a clear shrinkwrap on each cell, that's what I always do.
This way you protect the standard shrinkwrap with the label on and you can glue the cells together, so it's stronger and holds it together.
If you want to change it, you can cut away the clear shrinkwrap (with the glue on) and everything looks like new.
Thraex is offline  
Old 04-27-2005 | 01:36 PM
  #12847  
jag's Avatar
jag
Tech Master
 
Joined: Feb 2004
Posts: 1,168
From: So. Florida
Default

Originally posted by Tekin
Put a clear shrinkwrap on each cell, that's what I always do.
This way you protect the standard shrinkwrap with the label on and you can glue the cells together, so it's stronger and holds it together.
If you want to change it, you can cut away the clear shrinkwrap (with the glue on) and everything looks like new.
That works good unless you get an assembled pack. I like the pre-assembled Fusion packs... the quality is excellent.
jag is offline  
Old 04-27-2005 | 02:03 PM
  #12848  
Tech Regular
 
Joined: Dec 2001
Posts: 333
Default

Chris.....yes it was me same thing happend at the northwest race. My wear was good but i only had 3/4 power.
gotyournumber is offline  
Old 04-27-2005 | 02:35 PM
  #12849  
odpurple's Avatar
Tech Elite
 
Joined: Dec 2002
Posts: 2,192
From: San Francisco
Default

Originally posted by crimson eagle
I was using the t-fource battery retainers when I ran the 3700's and it seemed fine. I have since been told that the car handles better if you don't use the retainers but I don't want to rip my labels off with tape. Any ideas about that anyone? I was told to use clear nail varnish or superglue. I have tried them both and don't really like either.

Chris
How about clear package sealing tape? Cut a strip long enough to go over the top and in between the cells.
odpurple is offline  
Old 04-27-2005 | 02:41 PM
  #12850  
revzalot's Avatar
Tech Fanatic
iTrader: (4)
 
Joined: Apr 2004
Posts: 958
From: Nor * Cal
Default

Originally posted by crimson eagle
I was using the t-fource battery retainers when I ran the 3700's and it seemed fine. I have since been told that the car handles better if you don't use the retainers but I don't want to rip my labels off with tape. Any ideas about that anyone? I was told to use clear nail varnish or superglue. I have tried them both and don't really like either.

Chris

Try some laminate.
revzalot is offline  
Old 04-27-2005 | 04:06 PM
  #12851  
Tech Fanatic
 
Joined: Apr 2004
Posts: 814
From: SF Bay Area
Default

Originally posted by odpurple
The biggest difference I've found in running 3700's is that the race is over before they start to tail off. That means you will run 8 mins faster than you would with 3300's with everything else the same. I run the same gearing for both types of battery.
We adjust our gearing to get the best punch on the infield combined with best speed on the straight since run time (for stock) is not an issue with either type of battery.
But... I did turn in the fastest lap time of the day with my 3300's and not those cheater 3700!! Although, they were very, very good 3300's. And when I discharged my pack at the end of each run at 30 amps, I only had about 40 seconds left in them. I know that OD and JRRC had over 100 seconds left in their 3700's but I don't know if they discharged at 30 amps. I think the 3700's will prove themselves more valuable in modified races where you need the run time.

On another note: I don't know why we have to have ROAR membership if we are not going to run ROAR rules.

OK, Guys! Just kidding! I know this will start a lot of flack! I love stirring up the pot.
Crashby is offline  
Old 04-27-2005 | 04:40 PM
  #12852  
odpurple's Avatar
Tech Elite
 
Joined: Dec 2002
Posts: 2,192
From: San Francisco
Default

185 sec @ 25 amps
odpurple is offline  
Old 04-27-2005 | 04:51 PM
  #12853  
crimson eagle's Avatar
Tech Fanatic
 
Joined: Jun 2003
Posts: 841
From: Nor Cal
Default

I'm running pre assembled fusion 3700 cells. I have heard of the packing tape thing and I think I will be giving that one a try. I was coming off with arounf 120 seconds at 30A. I could not really tell the difference between the 5th lap and the last. I did try 28/88 for a run but i thought the infield punch suffered and it was affecting my lap speed as I was a few tenths down (even though that was my TQ run).

I talked to Ruben about the results, he is working on it but nothing yet solid. apparently he is trying to get the results posted in a pdf format which will have more information.

What degree active caster blocks were you all running? I was running 10 but I think I need to try 5 as it was a little aggressive on initial turn in. I think I mentioned ths to Crashby on Sunday too.

Chris
crimson eagle is offline  
Old 04-27-2005 | 04:53 PM
  #12854  
crimson eagle's Avatar
Tech Fanatic
 
Joined: Jun 2003
Posts: 841
From: Nor Cal
Default

Charile,

When you and Ruben get your asses into gear it will be very entertaining with 5 or 6 of us in very close contention.

Chris.
crimson eagle is offline  
Old 04-27-2005 | 05:38 PM
  #12855  
Tech Fanatic
 
Joined: Apr 2004
Posts: 814
From: SF Bay Area
Default

Originally posted by crimson eagle
I'm running pre assembled fusion 3700 cells. I have heard of the packing tape thing and I think I will be giving that one a try. I was coming off with arounf 120 seconds at 30A. I could not really tell the difference between the 5th lap and the last. I did try 28/88 for a run but i thought the infield punch suffered and it was affecting my lap speed as I was a few tenths down (even though that was my TQ run).

I talked to Ruben about the results, he is working on it but nothing yet solid. apparently he is trying to get the results posted in a pdf format which will have more information.

What degree active caster blocks were you all running? I was running 10 but I think I need to try 5 as it was a little aggressive on initial turn in. I think I mentioned ths to Crashby on Sunday too.

Chris
I run 5 degree caster blocks. 10 degree blocks are too agressive for me or they were the last time I tried them many years ago. I can't imagine that my reflexs have improved between then and now. Probably just the opposite.

Hey OD! How about your buddy CE not including you in the fast guy crowd!! I think it's time you roll out the secret weapon.
Crashby is offline  


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.