Well today I got back some parts and got two new parts from Twin Works Factory Racing (http://www.twfracing.com). Thanks to the man, Zoran I now have some key pieces for my 2011 season and one piece of bling.
Here is a picture of everything that came in the box...it was like Christmas!
First up I got a new battery. This battery weights 1lb 3.2oz and provides longer capacity than the stock >6lb battery. I didn't need to get a lighter battery but it was time for a new battery and now I can have that cheeseburger!
Up next I got my GSX-R rear wheel kit. The kit includes some machining on the sprocket carrier, brake hanger and spacers to make a 2006-2008 GSX-R600 rear wheel fit on an SV650 swing arm. Currently I am using a Bandit1200 rear wheel which gives me a 5.5" wheel. The problem with it is its heavy. So with this kit I can run the much ligher GSX-R wheel which will with making the motor spin up faster giving me a better drive out of the turn.
Finally I got something which should give me another 3-5hp. 42mm throttle bodies. Zoran took my 39mm SV650 throttle bodies and bored them out to 42mm. With this bore the removal of the secondary throttle plates which are used by the computer for a choke. Since this is a race bike and I have a very specific warm up procedure...so I don't need the choke. To remove the FI light that will come on with this stuff disconnected I also purchased the the by-pass box. If I had a 2007 or newer the by-pass box would be a requirement as the ECU goes into a limp home mode ruining any hope for good fueling and power.
This is the stuff that was removed. You can see I'm also saving 1lb of weight. Meaning I can have fries with that cheeseburger!
Well I received the new cases from eBay. Upon inspection they look like they are in good shape.
So I took a trip down to Zlock Racing (http://www.zlockracing.com) with my various parts to get them worked on and to also discuss what to do with the motor this time.
So far the following is getting done:
1. Bearing retainer on the left case. This is to prevent the bearing from walking in on the side of the crank that has the heavy rotor. This was done in my previous cases and it sucks to have to get it done again.
2. Heads getting seats cleaned up and removing some of the casting imperfections. Also looking at what is wrong with those two exhaust valves to see if something more needs to be done.
3. Crankshaft is getting lightened.
4. Cylinders honed
5. Rod bearings and other case bearing getting replaced.
The one thing I need to decide on is to upgrade to Zlock's Racing rods and upgrade to 81mm flat top 2-ring pistons of their design. I'm really leaning towards doing this as these upgrades will give me more safety with stronger rods but they also have their mass more focused towards the big end. The pistons are also lighter and stronger than stock (they are forged vs the cast stock ones). Also with the 2-ring design they have less friction. This with the crankshaft lighten, the motor should be really happy to rev. This will help provide me with faster acceleration. Also with the flat top pistons the compression will be increased even more. It might even increase it just beyond where one would want it to be....but that is something which Dan Zlock will verify.
I promise to provide some photos of the work when I get it back. So the rebuild process continues. This is what happens when you build something on a budget. With an unlimited budget the statement would be..."Make me the fastest motor you can". :) *sigh* I wish I had a billion dollars. :)
Well its come time to rebuild the old SV650 motor. I've decided to do as much of the work as I can mostly for the a learning experience. I mean I've already disassembled and reassembled this motor before due to it popping a freeze plug.
You can see all of the photos I'll be taking up at SV650 Motor Rebuild Photos
But boy...check out what I have to deal with. Those valves shouldn't be sitting there.
A local photog Darren Betty took this shot of me at Pacific Raceways during the last round of 2008. This is really cool.
(click for full size photo)
