Since Ed's Too Modest To Tell You........

[Cloner]

Fourth in ULW.  If I can suck ten more pounds I think I can reel in Graves and work on third!   

[JJ]

Fourth in ULW.  If I can suck ten more pounds I think I can reel in Graves and work on third!   

Darn, I missed it!!!  I really want to see a ULW race!!! CONGRATS SCOTT! That is good...!  Is there a ball park HP to the first three ULW bikes? As they say "A package wins, not the rider"...so what do I need to get on my bike apart from NOT bringing the fear of DEATH?

[Cloner]

Graves ran a half second per lap faster than I did on his modified Honda single.  I'm faster in the turns, so if I can get a little more umph, either in the form of more power or less weight, I think I have something for him.  The other two guys, one on a VERY heavily massaged Ducati 250 and the other on an even more heavily massaged Yamaha DT 175 two smoke, run four seconds a lap quicker.  That translates to another five to seven horses, I think, or another hundred pounds.  I can't suck that much weight, so I think a little mechanical wizardry is in order.

To force an Aermacchi to make the horsepower necessary to compete well at Sandia is an expensive proposition.  I've found a CRS motor that I've been gathering parts for over the last year, and I'm getting close.  That engine should hold a 10 hp advantage over my current street motor.  The last time I saw a complete, running CR/CRS/CRTT motor it was about $7000, I think.  They're also very competitive in AHRMA's 200 Grand Prix class, which is where I was hoping to run the bike at AHRMA events....if I ever get to go to one.

I got this motor via eternal vigilance at ebay.  A guy posted an Aermacchi motor but didn't know what he had.  It was pretty mangled up, and was missing much of the clutch assembly (which was a bear to find and expensive), but it's mine now.  For reference, there's a pair of bare CASES for a CR motor on ebay right now for over $1000! 

I think all I'm missing are a piston, cam, followers, valves, valve springs, and clutch plates...all of which are easy to find except the clutch plates....and I have a lead on those.  I might also want to increase the carb size, but I'll want to chew on that a bit.

[JJ]

Thanks Scott! That was the information I was looking for! It helps me understand racing better...! I can think beyond an Aermacchi at some point, for this one, I would perhaps start like you with a 33size Mikuni and run few sessions to modify to perhaps a FCR 37 (extreme manifold convergence nozzle from 26mm?!) and a fat air filter. I can also perhaps make aerodynamics do few tricks, working on this! More down force at leans-means more corner speed, there is only so much motor can do, the rest air needs to carve out!

Ed, sorry jacking this thread...but, perhaps you got a tip or two!

[Zaster]

Congratulations to both Ed and Scott, you guys kick ass
 

[Zaster]

And you did it again today Had a blast watching both you and Scott tearing up the track today.
Having good company didn't hurt...thanks Caleb, Marco and Bjorn

[Axel]

Some great racing today... enjoyed seeing you guys out there.