I left off last time on the edge of finishing a complete motor rebuild and a complete reworking/rebuilding of the entire bike. I work incredibly slowly on my own bike, and this was no exception. I guess it’s always like this, but I encountered any number of setbacks when I did the rebuild- broken swingarm, stripped bolts, getting taken advantage of by an ex-friend and a machinist, and on and on. Lot’s of money is what it boiled down to. Well, after getting through all of that, the day came. I turned on my camcorder and cranked the bike over. It fired up and ran. Nice and cool, no problems. That was a serious relief having never done a motor rebuild before. Guess I got everything right.
Not long after, I loaded the bike and took it out to see Johnny Cheese for some dyno testing and tuning. We ended up making 32 pulls on the dyno and by the end, we had maxed out the dyno at over 500 horsepower. That was my goal and I can’t explain how happy I was to reach it and not have a catastrophic engine failure. WOOT!
The Texas Mile rolled around again in October, 2009. I loaded my baby up and headed for the track. Things didn’t go straight to hell, but things didn’t go well either. My first pass, I decided to make a nice easy shakedown run since the bike had any number of changes that I made and they had not been tested as a system on the track. I didn’t add any additional boost with the boost controller and just ran with 14 psi of spring pressure on the wastegate. I rolled out very slow and easy and went through 1st and 2nd gear without getting under boost, and then nailed it in 3rd. The turbo spooled and the bike pulled hard and gently lifted the front wheel for about a second and a half and then there was a loud pop. I thought the bike had backfired, but it quite pulling hard from there on through the pass. I rolled back to the pits and let it cool. I lined up and made another pass and it never got on boost at all. I took it to the pits and looked it over. The loud pop had been the rubber hose between my intercooler and the intake plenum popping. It had a 5 inch tear in it. I can only assume that it was just about to go after our last dyno pull. I put my spare on and went out for another pass. It came on boost again in 3rd and then laid over again. When I coasted down at the end of the track, the bike was barely running on 1 or 2 cylinders. I killed the motor and got towed back to my pit. I found several things. The throttle bodies had popped out of their boots under pressure, which is why I had no boost. We checked the compression and it was very low on the first 3 cylinders and normal on the 4th. I put a new set of plugs in and it fired right up and idled smoothly. It was decision time. I decided to put the bike back in the trailer and wait until I could pull the motor and take a look at the top end. The compression was low for a reason and I need to find out what it is.
I stripped the bike down completely and got it ready to pull the motor out. I saw some milky stuff in the oil when I drained it, so I know that I likely blew the head gasked. The oil was black and smelled like fuel. That tells me that I was getting a lot of blowby for the fuel to get into the oil. The rings may not have seated and that may explain the low compression and the excessive blow by. I’ll know something tomorrow afternoon when I get the motor out. I’m praying for minor problems if any, but I’ll just have to see. Stay tuned for the post-mortem.

