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Five vs. six cells

Five vs. six cells

Old 04-13-2007, 08:16 AM
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Smokin motor: I could be totally wrong on this but i disagree, i think that it will be just as expensive, equipment will be more critical, and will be harder for someone to run mod. just because it is slower dose not mean that it is more cost effective or easier. I have run some 5 cell and this is just my findings on the topic. but it also could get better as everyone gets more experience at it, or maybe worse.
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Old 04-13-2007, 09:25 AM
  #32  
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Originally Posted by MR JOLLY
i raced against a 6cell/19t ,i had a 5cell/19t
unless you can make 1350g (or very close ie;;1380-90g with 5 cell & 1500g for the 6 cell ,you be struggling
i was @1420g was losing like 4-5 feet on the straight
Thanks for the info Mr Jolly, for the Reedy there is only 65g difference not the 150g of EFRA.
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Old 04-13-2007, 09:58 AM
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I have been runnign 5 cell mod for a while now, and I really think it works out better with a brushless system. Have been running the Novak 3.5 with 5 cell, and it has plenty of rip, and I make runtime ( it is close). Still have a way to go, but I like it...
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Old 04-13-2007, 08:13 PM
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Interesting topic Bitter

Specific to the event Charlie is talking about is the following:

In a 19T Class you can run either:
1450 grams for 5 cell-equipped cars.
1525 grams for 6 cell-equipped cars.

In Open Mod you can run either:
1450 grams for 5 cell-equipped cars.
1525 grams for 6 cell-equipped cars.

The Tamiya USA track is rather fluid, roll on and off. The only real drag race is in the single straight. After years of watching races there, in Mod, the straight and sweeper have always been were races were won or lost. For 19T, it is all about position. Most cars are under similar pace in the in-field. Driving punched in the Tamiya infield is not a rewarding experience to yourself or the other car you might collect.

The race line is narrow. Passing on this track is either by lead cars mistake or some exceptional move by the trailing car.

I have gone back and forth on the power-to-weight idea. Experience tells me that given a clean run that the 5cell 19T would have an edge but based on the events that I have competed at that track with the caliber of competitors 6cell 19T would have the better edge.

It is an interesting variable, the guys that do go 5cell will have to get it very right.


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Old 04-13-2007, 08:16 PM
  #35  
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Originally Posted by MDawson
Interesting topic Bitter

Specific to the event Charlie is talking about is the following:

In a 19T Class you can run either:
1450 grams for 5 cell-equipped cars.
1525 grams for 6 cell-equipped cars.

In Open Mod you can run either:
1450 grams for 5 cell-equipped cars.
1525 grams for 6 cell-equipped cars.

The Tamiya USA track is rather fluid, roll on and off. The only real drag race is in the single straight. After years of watching races there, in Mod, the straight and sweeper have always been were races were won or lost. For 19T, it is all about position. Most cars are under similar pace in the in-field. Driving punched in the Tamiya infield is not a rewarding experience to yourself or the other car you might collect.

The race line is narrow. Passing on this track is either by lead cars mistake or some exceptional move by the trailing car.

I have gone back and forth on the power-to-weight idea. Experience tells me that given a clean run that the 5cell 19T would have an edge but based on the events that I have competed at that track with the caliber of competitors 6cell 19T would have the better edge.

It is an interesting variable, the guys that do go 5cell will have to get it very right.


Well said , I am running 6 cell and the test is a bust..

Im not giving up power for nobody..
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Old 04-14-2007, 01:07 AM
  #36  
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Originally Posted by MDawson
Interesting topic Bitter

Specific to the event Charlie is talking about is the following:

In a 19T Class you can run either:
1450 grams for 5 cell-equipped cars.
1525 grams for 6 cell-equipped cars.
[/b]
easy one
go for the 6 cell 1525g
even a 5 cell 1450g with 19t will have no chance against that 6 cell/1525g


anyway guy`s forget mod class
the guy who started this thread is asking about spec 19t ..NOT MOD

this is why it gets so confusing
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Old 04-26-2007, 06:51 AM
  #37  
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At the UK Stafford National on Sunday the mod guys were running 5cell with a limit of 1350g.

It was interesting that not one of the top guys could get their cars below 1400g, I saw 1420 (Adam Rogers Mi3) and few weeks before Chris Graingers Yokomo was something very similar.

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Old 04-26-2007, 07:57 AM
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The 1350g weight is stupid. The weight should be reduced by 75g per cell removed. Thats the weight of one cell, battery bar and solder. 1350g would be right for 4 cell but is unrealistic for 5 cell.

To hit 1350 car manufactueres will have to start sacrificing durability to hit the min weight. Thats OK for the pros but really bad for club racers that crash.

EFRA and the BRCA should raise the min weight to 1425g.
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Old 04-26-2007, 08:23 AM
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I've seen on the regional champ here in Spain weights around 1380g with 5 cells (lots of plain shell designs and almost no stickers ... but that's with foams... with rubber I don't know any way do get down 1400g....
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Old 04-26-2007, 09:35 AM
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Originally Posted by AdrianM
The 1350g weight is stupid. The weight should be reduced by 75g per cell removed. Thats the weight of one cell, battery bar and solder. 1350g would be right for 4 cell but is unrealistic for 5 cell.

To hit 1350 car manufactueres will have to start sacrificing durability to hit the min weight. Thats OK for the pros but really bad for club racers that crash.

EFRA and the BRCA should raise the min weight to 1425g.
Adrian,

1350g is easily achievable in brushed. It's the actual Brushless systems that make it un-achievable because the speedos weight so much ! My car's 1410g in brushless and 1360 in brushed...
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Old 04-26-2007, 10:47 AM
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Originally Posted by TRF415boy
Adrian,

1350g is easily achievable in brushed. It's the actual Brushless systems that make it un-achievable because the speedos weight so much ! My car's 1410g in brushless and 1360 in brushed...
50g difference!, does your brushless use electric valves at all
The motors are very similar in weight but I didn't think there was that much in the speedo's?

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Old 04-26-2007, 10:54 AM
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Originally Posted by Skiddins
50g difference!, does your brushless use electric valves at all
The motors are very similar in weight but I didn't think there was that much in the speedo's?

Skiddins
Well there is with the LRP/Nosram with a heatsink and fan (which you need). I just had both on the scale and that's what came out.
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Old 04-26-2007, 11:02 AM
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Originally Posted by rampal
I've seen on the regional champ here in Spain weights around 1380g with 5 cells (lots of plain shell designs and almost no stickers ... but that's with foams... with rubber I don't know any way do get down 1400g....
these values were with a novak gtb and 3.5r on a xray t2... nosram/lrp 5-cell packs....
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Old 04-26-2007, 11:07 AM
  #44  
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Just to point out, RDX Phi with Ti screws and aluminium ball joints with a LRP system weighed 1370g at Stafford. Absolutely Ballistic down the straight! Just because the Mi3 is very heavy doesn't mean every car also is Adrian!!!
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Old 04-26-2007, 11:29 AM
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Adrian, for you to say the weight limit is stupid, well, really is stupid. The weight reduction should not only be the weight of the cell, bar, and solder, it should also incorporate some offset for the voltage reduction in order to keep the cars at a similar speed with six cell.
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