Too Much Power or what

[Puttinstankonia]

Im Gonna be running a Quark 125b Gear Ratio 35/60 in a TC4 with a lehner 4300xl basic and 5s max amps.. what should i be looking to get out of this if Pros and cons... Please advise

[MetalMan]

It'll be fast, no doubt. It should theoretically exceed 100mph, but you might only get to 100mph due to range, distance, or sight limitations.

[Puttinstankonia]

What should i use to cool the speed control and what kind of body should i use... I bought a bullet wedge from CustomRC any other suggestions

Strong rubber tires and a big, smooth parking lot. Good luck, a mamba 4600 on 4s is wayy too much power for my tc3. 5s and a bigger motor is going to be undriveable without serious work, i.e. something like this: http://forums.radiocontrolzone.com/s...d.php?t=238639 .
Cooling the speed control shouldnt be an issue, the 125b's amp rating is so far beyond what youll be able to pull with a little touring car. Though I have no experience with the big quarks.
Your bullet wedge is pretty similar to the protoform lola body I run, which works far better than a normal tc body. A smooth undertray does wonders though.

[SpEEdyBL]

i think the motor could blow apart because of the sheer rpm on 5s. im not kidding.

Yes my 4200XL rotor broke loose on only 3s (47,000 rpm's). I now run a 3100XL on 3s. 5s would be nuts.

[Puttinstankonia]

I have it on 3s now and have no issues withit at all... I dont do extended runs i may do 2 passes and i have about 250 yds of clean street to run on...

[crazyjr]

I had my XL1200 come loose at 4s, but JB Weld has held since

[SpEEdyBL]

The centrifical force on the rotor increases squared as the rpm goes up. So going from 3s to 5s is almost 3 times as hard on the rotor in that sense.

Yeah, its best to slow things down a bit. I was wanting to do a dragster with some kinda crazy high rpm set up in it and planned on just using a cheap motor like a nemesis that has a warrenty, so I would not thrash my nice purple ones.