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Old 12-06-2008, 05:35 PM   #151
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Forgot to attach how packs/cells should be connected for high C rate testing.

If either of the companies in this thread are using a shunt type device to measure current... you numbers could be off by atleast +/- 1%. I believe the GFX using a resistor to measure current (2*0.002 ohm in parallel or something like that) so it is probably even less accurate than a true shunt. So, any argument that is based on numbers that are closer together than about 1 to 2% is just plain silly.

If you really want to measure current you need to use either a hall device (LEM) or a true DCCT (Danfysik). The burden resistors for these will need to be very good as well.
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Old 12-06-2008, 11:00 PM   #152
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Jason/TPRC-

The secrets of the Wu-Tang must not be revealed.
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Old 12-06-2008, 11:21 PM   #153
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Jason/TPRC-

The secrets of the Wu-Tang must not be revealed.


Hey I know a guy at the track that accuses everyone of cheating. They get so annoyed and ends up telling him all their tuning tricks just to prove they're not cheating. lol
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Old 12-08-2008, 11:28 AM   #154
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ttt
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Old 12-08-2008, 01:59 PM   #155
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Some real world results from your average club racer. I intentially made no changes to my car or prep to see if the battery made a difference.

The TP cells helped me shave 2/10s of my fast lap. 2 seconds off my qualifier (could have been a bit more). and 6 seconds off my overall time in the main. Same track, similar conditions. Same set up.

That was compared to a fresh 25c Trakpower 4900.

FYI: The TP is 20 grams heavier, but, in my opinion, worth it.
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Old 12-08-2008, 03:01 PM   #156
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I ran these packs for the first time this past weekend as well. They seem to be just as good as the other top of the line lipos when running them at room temp. I had no issue with drop off or lack of power. Time will tell how they hold up, but i believe they should be fine. One thing to note is it seems the TP responds a bit better to heating then my prior packs did.
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Old 12-09-2008, 11:05 AM   #157
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I did some testing this weekend with the 40C 5000 pack and all I can say is WOW! I was run in touring MOD with lots of motor and I could definatly feel the extra get up and go with the new 40C packs compared to other brands as well as other thunder power packs I have tested over time.

GREAT JOB THUNDER POWER. Cant wait to test these in the SPEC classes to see how much I gain.

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Old 12-09-2008, 11:11 AM   #158
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Do the cells in these 40C packs have any kind of mechanism to protect against dead shorts? Perhaps something like the Kokam cells, where one of the tabs acts like a fuse?
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Old 12-09-2008, 11:17 AM   #159
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I have to agree with Mike and Kyle here.

I, too, got to run the 40C pack this weekend at the ROAR Regionals at 360 Raceway. The pack performed great and definitely felt like it had more punch than some of the other lipos I've tried. I let a friend of mine, Ronnie G, try it in 1 round of 17.5 Foam TC and he came off the track after his run with a smile.

Definitely a great job by Thunder Power!
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Old 12-09-2008, 12:12 PM   #160
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Nevermind.....
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Old 12-09-2008, 01:30 PM   #161
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Hey Mr.Haynes how'd these fit in the type R. looking to make this switch to lipo and these look promising, just wondering how much modification (if any) it took to make these fit.
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Old 12-09-2008, 02:40 PM   #162
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Hey Mr.Haynes how'd these fit in the type R. looking to make this switch to lipo and these look promising, just wondering how much modification (if any) it took to make these fit.
Maybe I'll let ya try mine on...
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Old 12-09-2008, 02:44 PM   #163
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Hey Mr.Haynes how'd these fit in the type R. looking to make this switch to lipo and these look promising, just wondering how much modification (if any) it took to make these fit.
They fit right in the type r with the plastic tray. However if you want to run the lipo tray you have to grind the rear bulkhead a little.

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I have to agree with Mike and Kyle here.

I, too, got to run the 40C pack this weekend at the ROAR Regionals at 360 Raceway. The pack performed great and definitely felt like it had more punch than some of the other lipos I've tried. I let a friend of mine, Ronnie G, try it in 1 round of 17.5 Foam TC and he came off the track after his run with a smile.

Definitely a great job by Thunder Power!
Pretty sure I ran my fastest lap of the weekend with it.
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Old 12-09-2008, 04:09 PM   #164
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They fit right in the type r with the plastic tray. However if you want to run the lipo tray you have to grind the rear bulkhead a little.



Pretty sure I ran my fastest lap of the weekend with it.
Granted I had a slower 17.5 in my car that run, but your car was flying that round.
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Old 12-09-2008, 04:17 PM   #165
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I picked up one of the 5000, 35C packs at IIc and was wondering how much difference there is between these two packs. I've got it in my 17.5 Oval car and must say, the power has been great.

Thanks
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