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sluggish bottom end

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It does not bog like a overly lean condition. Its just sluggish. I got alot of it out but still not all of it. The truck is only about 3 weeks old so the clutch should not be wore out. If the slipper clutch were wore out i would imagine the motor would race faster but the take off would be slower. It acts just like the clutch shoe spring came apart and the clutch is engaged all the time. So when i do a standing start it does not build revs fast enough. But this is not the case. I can roll the truck backwards really fast and stop real quick and watch the spur gear and the clutch bell spin all day long.
Maybe i am over explaining myself.
Ok i fire the truck up, i make a few passes around the back yard to get temps higher. I then start driving the truck hard. At this point the bottom end is really really punchy and its hard to keep the front end down, at the same time the top end is not winding out. So as the temps start to raise more the top end comes in and it shifts to second like it should with great speed and pick up. Now the bottom end has fallen off some. if i keep driving the truck wide open the bottom end never comes back. Now if i slow down for a bit and let the engine cool off some then the bottom end starts to come back somewhat but the top end stays punchy and fast.
Another question i have is this which concerns me. I clean my truck with compressed air everyday. The next day i fill up with fuel( I always run the tank dry) and when i fill up i make sure that i dont spill any fuel on the fuel tank. After the first tank runs out all the grass and dirt is now stuck to the top of the tank leading me to believe that the tank maybe leaking from the oring causing fuel to slosh out while I'm driving. If the tank were dry outside nothing should stick to it.

check the fuel tank for leaks and also the fuel lines.
it COULD have a leak and as the fuel gets moved around running it it goes all foamy and the truck starts to run lean but once u let it sit the fuel settles again and giving it back to more punch

I'm not saying thats the problem its just a idea couse it seems like u have tried everything else lol
 
Well i hate to say this but i have found the problem and i feel so dumb for not thinking about it. I bought the rechargeable receiver pack for the truck this weekend. My charger i am using has been acting up giving me false full charges. Battery pack was only lasting about 15 minutes. Well i started with a fresh battery today and have ran 2 tanks so far. Bottom end punch has remained the same from cold to hot. In the grass and dirt it just spins off the line and you know what it does on pavement.
I also lowered this thing down to the lowest ride height setting just to try it out and i must say it is awesome, It handles the backyard great!. On the pavement its alot more responsive and i can turn at a much higher speed without rolling over. I picked up a sway bar kit today and I'm gonna install that tonight after I'm done playing. So back out i go before it gets dark!!!!!

























Stupid batteries :hehe:
 
Well i got the swaybar kit on tonight. Was very easy to do and everything went nice and smooth. I ran 3 tanks tonight before coming inside to install the swaybars. The receiver pack lasted through all 3 tanks. The bottom end was no longer sluggish. Honestly it ran the best it has ever run tonight since i have had it. I ended up blowing the Left front off the rim pretty much. I glued it back on but i think the foam inside is ruined. So i need a recommendation for tires. I want something that will be good on Dirt/pavement. Anyway i snapped a couple of really bad pics of my revo so enjoy

Picture008-1.webp


Pretty much stock here except for the swaybars.

Picture009-1.webp
 
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