4-tec setup tips

[DJ BlendeR]

Ok I posted this on the setup thread, but got no responses, so this one is more lively so here goes:

Ok, my car seems to have way to short of a run time, it drops off somewhere around 3-4 minutes and even with a mod motor gets up to only 30-33mph (calculated speed says 38mph). Here is what I have:

0 degree axle carriers
15T Q Speedgems 2 motor
Stock gearing (28/84)
Slicks
Tekin Rebel ESC
TQ Radio
1500 and 2000mah packs (the 1500 packs in a little more speed and run time...)
I use the stock body, but lost the spoiler
I also have a foam bumper, prolly makes no difference however.

Thanks for the help, I want to race and be competitive and be able to have some fun thrashing the parking lots for more than two 3 minute stints.

[4TECluvr]

The spoiler would help a lot in the acceleration and turning department, as it really is functional. you may want to use a different motor, however, as the less turns you have, the less run time. A trinity green machine would probably bring the performance you desire while also bringing longer run times.



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I stongly dislike HPI

[super4-tec]

Hye I am running the same motor and I am using a sanyo 2400 pack and my gearing is 78 spur and 28 pinion on a novak explorer sport and it runs about 8 mins and top speed is around 40-42 mph

[rc-bdub]

I did not see that you installed bearings, if you haven't that will give you more run time right there. Next thing, your 2000 pack should give more performance than your 1500's, but that all depends on how good your batteries are and if they are properly charged. Next thing is to look at your motor, it is possible you may need to clean it, change out the brushes, cut the comm, or change to stiffer springs.

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Ya ain't driving till ya break it

[pooycow]

yor motor might be a bit duff! even if it is new!
take it to your local hobby shop and see what they think, also your batteries could be duff too, you have to look after your batteries to keep them nice! anbattery pack usually lasts about 2 years if you look after it properly, then after the two years they start to loose their performance!

[DJ BlendeR]

Yeah, I havent gotten the bearings, as money is usually tight... I think the reason I am getting these low run times is that my 1500 pack is a racers edge one, and my 2000 is a radio shack pack, I am going to pick up a 2400 pack when I get my XXX-T next week, so maybe that will help.

Also, by duff, what do you mean? And the motor is brand new and my packs arent very old.

[rc-bdub]

the pack batteries bought at radio shack are probably just pulled from huge bins and take no consideration on the performance of the cells, ones bought at hobbie stores, even though they are not always matched will serve you better, the extra 5-10 dollars you spend on these unmatched batteries will give you more advantages, I have ONE Radio Shack battery which sole purpose is just to test things after I setup the car.

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Ya ain't driving till ya break it

[pooycow]

duff means a bit turded, err, how can i explain this? err, like not working properly!

[DJ BlendeR]

Ok, I just ran my car with my 1500 pack and it ran for 3 minutes 22 seconds. That is way too low. However I think I was wrong in calculating what I thought to be my top speed. I am thinking that my car will hit around 40. I let it run down further on the street than normal which it then showed its true potential.