Rock Racing mini drag bike...final assembly and initial start up

[rockracing59]

TBob frame, 25hp clone.....pleased so far...

 

[trinik7597]

25 HP is not easy to achieve !!! What's done to the motor ?? Nice bike temecula Bob makes a hell of a frame .. You are gonna want to upgrade that clutch

 

[rockracing59]

Precision Cams, Wilmington, NC built the motor.....clutch is open for debate, will have to make that determination after the initial test passes.

 

[trinik7597]

Nice .. Trust me that Hillard clutch won't hold even 15 HP

 

[trinik7597]

I don't see any bracing on the block .. No vent .. No stud kit .. I would think more around 14 HP ... Still a really nice bike though !!!!

 

[buckeye]

Nice machine.

 

[Twid]

Not to be a jerk, but I'm going to call BS on that clone having 25hp till I see a dyno print out. It's looking bad ass! Are you going to brace the rear of the frame?

 

[massacre]

I was gonna say reminds me of Twid's bike.
Very nice, I love the front brake setup. Do you have any good pics of the mounting brackets?

 

[Twid]

I'm digging the front brake and wheel choice as well.

 

[delray]

i was just wondering how you get 25hp out of a stock carb.

 

[rockracing59]

I do have the dyno sheet...the carb is off a stock GX390 of there design and blue printing. I can take some close ups of the front brake set up...works great btw

 

[rockracing59]

All 49cc pocket bike stuff.....purchased off ebay. I engineered it just looking at pictures on the web and various parts houses

 

[Twid]

Are you running m5? If not what fuel are you running? What oil are you running also? I want to know more about the motor. I have the same frame are you going to run wheelie bars and brace the rear of the frame?

 

[rockracing59]

I am running M5, oil is FHS 62R....dont have much details on the motor, i do have the dyno sheet tho. With such a long wheelbase and low cg, I don't think it's gonna need wheelie bars. They look cool but if they are not needed they just add weight. Until i make some test runs, rear bracing probably won't be needed imho

 

[Twid]

Are you going to run 100, 660 or 1320?

 

[rockracing59]

Will do all my test runs @ 100 ft or so, there is a 1/8 mile drag strip in my town, so I will prolly set it up for the 660. I will have some video to post shortly....have a few tweaks to make.