snoozemore
RC Newbie
I just bought my Savage XL and got it broke in, ran about 10 tanks. My problem started when I leaned out the HSN. The truck would bog down because it was soooo rich, of course (from factory). So when I started to lean out the HSN the truck hit second gear, great. Then leaned a little more and finally hit third gear, but the temps go up to about 275 - 280. It runs a little hot. Many many people have the same problem with this K5.9 engine. When I looked at the truck for air leaks or anything else, the only thing I found was the convergent cone in the pipe was loose (wow). Called HPI and I have a new one on the way. A lot of blame is being put on the HPI stock pipe, because it's also for the previous Savages (too small). Seems like the CEN GST 7.7 pipe, and the OFNA 086 pipe are the two best options that people are trying in order to get more performance. I've just found out about a BUKU pipe, looks very good, not sure if anyone has tryed this on a Savage XL? I just don't see the performance I was hoping for, considering I've ran a gallon of fuel now. If anyone has any other ideas that would be great. (I believe the needle settings are good, I have not touched the mid, and only made 3/8 turn on the LSN).