Last Bolt-Ons And A Dyno Run

6. The first one is the Gattlin in chrome finish, also available in black or brass.

7. Next was the Old School with brass mesh inserts, also available in black.

8. Then the Thrust was bolted in place, Chris liked the look and style of this one the best.

9. To match all the other black powdercoated parts Chris picked the flat black Thrust.

10. Next to go on were the CCS exhaust pipes. Chris liked the look of the S bends. Kazoo removed the old gaskets and installed a new set.

11. Next, he installed the rear bracket to the rear lower transmission bolt, and then installed the exhaust flanges to the end of the pipes.

12. Starting with the rear pipe Kazoo positioned it in place and loosely bolted it to the head.

13. Same thing for the front pipe.

14. Next, the rear of the exhaust pipes were bolted to the rear-mounting bracket. Then the flanges were tightened to the heads.

15. Once everything was tightened, Kazoo started the bike and made a few adjustments to the carburetor to smooth out the idle due to the new intake and pipes.

16. After about 600 miles, we headed over to Dyno Dave's in Orange, California, to get some dyno numbers. If you recall in Vol. 41 No.10 we freshened up the motor with Screamin' Eagle parts which included a new cam, a set of tappets, pushrods, .010 over pistons, and head and cylinder work. Going into this build we knew that a stock 80ci Evo would only have around 50-60 hp so any gains would be good. But we were excited to see what the new parts along with the air intake and pipes would pull out. Dave placed the bike on the dyno and logged in all the bike's info.

17. Once the bike was brought up to operating temperature, Dave twisted the throttle and on the first run the bike pushed out 70.1hp and 66.7 lb-ft torque but was running way too rich at the top end. So after a quick main jet swap from a 76 to a 72 and one more run, the bike topped out at 77.1hp and 73.4 lb-ft of torque. The first thing Dave said was that if the pipes had baffles (backpressure) we could do better. Something for us to think about in the future, but as for now, Chris just wanted to ride the bike and enjoy the investment. Enjoy Chris!