Hello, I have a SH racing .28 in a 1/8 buggy. I got it the day after xmas. I had a 1/10 truck a couple of years ago but due to my need for speed I was always blowing the motor so I stopped running it. This time I swore I would have a motor last more than a gallon of fuel.


I broke the motor in using the heat cycle method. Then I started leaning out the top end. Before I finished the tuning it was dark. The next day I went to the track with a friend. I finished tuning the top end with the temp at 250. The bottom end was still fat so I went to do it, slowly. Before i got to do it my friend came over and turned it in I don't know how far. The car ran good, idled good and came out of the hole like a demon. I ran probably 7-9 tanks of gas that day.


Now the car has no bottom end at all. It still has good top speed, idles good and doesn't get over 250, but no low end power. I have tried richening it(as far as half a turn out with no difference) and leaning, but nothing changes it.


Is it possible to hurt the low end power without hurting the top? Could it be dirt in the needles? I am at a loss.


Thanks for any replies.