Kelly ran 3 4.6's on his new 730 on saturday. I have the video, and a few pictures, but they are so big, that its going to take me 30mins to send it to someone. I guess I can send it to one person, then they can post it or something.

By the way, this 730 makes so much power, it is using 14 paddle 78 rollout tripple buffs. And turns them NO problem.

 

Themoose...I beg to differ. I ran at atoka and ran 4 hundredths slower than I run at TSD.

 

Congrats to the Craycraft Racing Team, home of the fastest Raptors anywhere!

 

Well I know when the cars I work on (VW powered dragsters) ran at Texas we picked up 3/10th on both cars, people with quads that race at both places I talked to said they also gain 3/10ths to 4/10ths there.

I talked to the head of the ASDA at the Heartland Nationals at Atoka on memorial day & he said he went to look at the track & it was a 30' drop so he could not certify the track.

All tracks are diffrent in the way they are setup & what they use for the track surface & it can make a big diffrence.

What ever though a 4.6 is a heck of a time.

 

Is this Ryan's bike or is it the Rappy with the custom override? Please do tell what all is done to the engine. 'Preciate it.

 

I looked hard at the track on friday and figured the track drops 5 to 6 feet in 300 feet. I saw plenty of quads run 6.0 flat so i guess they would be 6.3 at atoka?? I doubt it. My stock bore would run 5.3 at any track. Maybe some 3000 pound cars can run a little faster i do not know but maybe. From being on different tracks from time to time the wetness or dryness is going to have more to do with times than elevation will.




Still say it is the fastest raptor. Guys that have been to both tracks say they are about the same.


No matter what you put at the start line- A bowling bowl, basketball, 3000 pound car, 400 pound quad it will not roll 1 inch toward the finish line. lol by itself.[img]i/expressions/face-icon-small-smile.gif[/img] The owner will probably make it to atoka in the future and will probably run a 4.5 or better there once he finishes dialing it in.

Wallstreet- That was not ryans 730. It is another guys. It does not have a TI rod at this time, regular carrillo. It is a 730 with 39mm FCR's, craycraft porting and build, custom built craycraft 105mm piston, lightened/coated larger valves in the intake

 

Congrats on the build Bob! That thing sounds like a Freakin Beast.[img]i/expressions/face-icon-small-cool.gif[/img]

 

I would like to do an engine build pretty soon. Hopefully, I will get Bob to mod my carbs, so I don't have to get FCR's, then do a 686. I am very impressed with the way Dugan's bike runs, and was ported by F.A.S.T. racing, so when I get everything done I am going to have either F.A.S.T. or Craycraft do my porting, and Craycraft actually build the engine.

Hey 14, do you think I would be better off running my nirtrous with hi-comp and alky, or medium comp and race gas? I want it to be fast off the bottle, but to be a real handful on the bottle. What are the price differences between a CR 686 and CR 727?

My bike runs pretty stout now, and I have never even touched the engine. I can't wait to see what it will do with an extended arm, no airbox, built engine, and good carbs.

Gets me all excited just thinkin about it.

Later

 

AWESOME!!![img]i/expressions/face-icon-small-cool.gif[/img]

 

Wallstreet- Kelly's 730 is low comp, lower than the off the shelf pistons. Looks like a winner there. It is fast off the bottle. (4.8) This was really just the first test and tune. As everyone that has built anything knows it takes more than 6 passes to get them dialed in. From all that i have ever seen lower the comp and spray more NOS.