Author Topic: Samauto II RC1080cc, RC crank and Golden rods, 327 cam etc, CB750 Automatic (Read 51903 times)

TurboD · « **Reply #400 on:** April 15, 2016, 06:59:57 AM »

Frank is right, you will need a wheelie bar to go 9's as VH did back in the 70's. And don't forget the endless testing and tuning. I wish anyone the best of luck with this feat, and it won't be done after just a couple test sessions. Those numbers were a result of years of experience and track time.

120rwhp from a NA sohc is a very tall order, its is no cake walk to reach those numbers with a 1200+cc Dohc. Also I understand the theoretical game, I have been playing it for nearly 40 years, it is not linear and as straight forward as some might think. My guess is more than 120rwhp will be needed to 9.7s.

Bill/BentON Racing · « **Reply #401 on:** April 15, 2016, 07:33:57 AM »

Oh for sure a tall challenge. We got some surprises that may help. No easy task, no way! But we're going try, Bill

dragracer · « **Reply #402 on:** April 15, 2016, 07:56:18 AM »

Quote from: Bill/BentON Racing on April 15, 2016, 07:33:57 AM

Oh for sure a tall challenge. We got some surprises that may help. No easy task, no way! But we're going try, Bill

Did they run those numbers on a sit up, stock cradle chassis or a laydown frame???

Bill/BentON Racing · « **Reply #403 on:** April 15, 2016, 10:30:17 AM »

Pro Stock bike with bars!

dragracer · « **Reply #404 on:** April 15, 2016, 01:12:13 PM »

Quote from: Bill/BentON Racing on April 15, 2016, 10:30:17 AM

Pro Stock bike with bars!

Hey George,

Can you post a picture of the V&H Pro Stock bike that set the record Billy is shooting to bring down?

gschuld · « **Reply #405 on:** April 15, 2016, 02:43:28 PM »

Sure...

gschuld · « **Reply #406 on:** April 15, 2016, 02:47:35 PM »

It's like you know I have these things on hand....

George

P.S. Actually this one is the Kawasaki Byron built for Terry to race in the 1976-77 seasons. Still interesting...

Medyo Bastos · « **Reply #407 on:** April 15, 2016, 02:50:44 PM »

Quote from: gschuld on April 15, 2016, 02:47:35 PM

It's like you know I have these things on hand....

George

actually we do know

kmb69 · « **Reply #408 on:** April 15, 2016, 02:56:27 PM »

+1.

The RC Historian George.

Thanks

gschuld · « **Reply #409 on:** April 15, 2016, 03:05:27 PM »

Just because it's relevant, informative, and kind of funny.

Story directly from a 1979 article with Byron Hines.

George.

Extra points to anyone who can name the guy who lost that combined $1000 bet that day, and came in as runner up.

Big hint, his initials are MB...

kmb69 · « **Reply #410 on:** April 15, 2016, 05:38:15 PM »

Quote from: gschuld on April 15, 2016, 03:05:27 PM

.....
Extra points to anyone who can name the guy who lost that combined $1000 bet that day, and came in as runner up.

Big hint, his initials are MB...

I think that was Mike Bruso.

gschuld · « **Reply #411 on:** April 15, 2016, 07:21:41 PM »

A+ for you sir.

George

Bill/BentON Racing · « **Reply #412 on:** April 15, 2016, 08:28:06 PM »

It can be done. Guaranteed we can build one lighter, Bill

gschuld · « **Reply #413 on:** April 16, 2016, 08:20:25 PM »

Almost forgot this one...

George

POPS 911 · « **Reply #414 on:** April 17, 2016, 05:35:18 AM »

Hey Trey got a set of them 2 foot long wheelie BARS, now that BRUSO guy is a no-bar bike ........
FRANK in the 10-9-8: I'm proud that you use a bottle warmer for safety, as my boyz made me use a torch for the 900.

joesmotos · « **Reply #415 on:** April 17, 2016, 06:27:03 AM »

are those throttle bodies on that V&H pro stock cb750?

MRieck · « **Reply #416 on:** April 17, 2016, 07:04:41 AM »

Quote from: TurboD on April 15, 2016, 06:59:57 AM

Frank is right, you will need a wheelie bar to go 9's as VH did back in the 70's. And don't forget the endless testing and tuning. I wish anyone the best of luck with this feat, and it won't be done after just a couple test sessions. Those numbers were a result of years of experience and track time.

120rwhp from a NA sohc is a very tall order, its is no cake walk to reach those numbers with a 1200+cc Dohc. Also I understand the theoretical game, I have been playing it for nearly 40 years, it is not linear and as straight forward as some might think. My guess is more than 120rwhp will be needed to 9.7s.

Boy...I agree with that.

gschuld · « **Reply #417 on:** April 17, 2016, 07:30:24 AM »

Quote from: POPS 911 on April 17, 2016, 05:35:18 AM

Hey Trey got a set of them 2 foot long wheelie BARS, now that BRUSO guy is a no-bar bike ........
FRANK in the 10-9-8: I'm proud that you use a bottle warmer for safety, as my boyz made me use a torch for the 900.

Bruso ran with no bars early on. Was 1974 champ that way. The short lived (less than a full season in 1975 only) Byron Hines built Pro Stock cb750 (1162) bike that Terry Vance ran had a short set of wheelie bars from the get go. They sold them through the RC catalog as well. I have a factory swing arm with a set of the original pro stock type triangular wheelie bar brackets welded on.

The wheelie bars themselves were fairly unique. If anyone has a set, or knows where some are, I'd like to know about it.

Mike,

120 RWHP N/A, assuming non methanol, yup. Tall order I'd say. I imagine the Byron Hines all out effort stroker big block, welded up head monster that Gary Pena ran 9 flat (N/A) with very little development time might have been in the neighborhood, but that's not exactly a typical RC type big bore motor built in someones garage. Byron used a mountain of experience he has gained over the years on that motor. Lots of flow testing, dyno time, high dollar modifications.

The Cycle X drag motor seems to be a similar type effort.

RP · « **Reply #418 on:** April 17, 2016, 07:37:40 AM »

Quote from: joesmotos on April 17, 2016, 06:27:03 AM

are those throttle bodies on that V&H pro stock cb750?

The RC Eng. Honda that Terry rode had Weber carbs. Byron went with CR's on the Kawasakis.

Mike Bruso was running 10 flats with no bar....He threw bar on it and became the first official Pro Stock bike in the 9's.

To run quicker than Terry did on a SOHC should not be that difficult...but to do it at the same Pro Stock weight breaks and rules from the 75 AMDRA rulebook would be the bigger challenge!

gschuld · « **Reply #419 on:** April 17, 2016, 07:55:59 AM »

Quote from: RP on April 17, 2016, 07:37:40 AM

To run quicker than Terry did on a SOHC should not be that difficult...but to do it at the same Pro Stock weight breaks and rules from the 75 AMDRA rulebook would be the bigger challenge!

The bike needed to be a certain weight (total weight, bike and rider) depending on the engine displacement. Terry was very lightweight, so they were able to add the required additional weight down low and forward(next to the oil filter). That was an advantage for them for sure.

George

Jerry Rxman Griffin aka MuthaF'er · « **Reply #420 on:** April 17, 2016, 09:33:54 AM »

Wonder what ever became of that Pena engine??

gschuld · « **Reply #421 on:** April 17, 2016, 09:46:39 AM »

Ask Mr Bill.

Jerry Rxman Griffin aka MuthaF'er · « **Reply #422 on:** April 17, 2016, 10:03:18 AM »

Quote from: gschuld on April 17, 2016, 09:46:39 AM

Ask Mr Bill.

Can't do smileys with this Edge browser or I'd put in the wink. Big #$%* eating grin should go here. Can you believe it is still hiding?! Bill has some really nice irons in his fire with this in waiting. Anticipation......

754 · « **Reply #423 on:** April 17, 2016, 10:50:33 AM »

Well to really beat the record you will need to run struts and that swingarm looks pretty short...probably 3 inches over..

Bill/BentON Racing · « **Reply #424 on:** April 17, 2016, 12:37:42 PM »

As everyone can attest , Byron knows,..... I guess! I'll be satisfied to try and break the record with a similar style bike, weight savings will be a big help. And yes a bar will prolly be needed! I went and hugged the Pena engine for you Jerry!
Plans are in the works for it also! Here's a color pic of TV's pro stocker!, Bill

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Author Topic: Samauto II RC1080cc, RC crank and Golden rods, 327 cam etc, CB750 Automatic (Read 51903 times)