Topic: CB750A Street ET bracket drag bike. A year to build it.

[POPS 911]

BILL: Your bike does have a race cut [ back cut ] gears with a SUPER STRONG  2nd. gear = right ?  And I would hope that you have 17-18mm wrist pins in pistons.............  seen many SS900cc Honda destroy the engine with a broken 15mm wrist pin.  My 1978 ZIR had a race tranny that was cryogenic and I broke 1st and 2nd gear and broke chains in the middle of the pin link that tore the left side of the motor off at the 1/8 mile. Put that CASE protector back on as if you break a chain it might roll it out the bottom and no harm.

DRAGRACER: At the Cup race I ran a guy who had a auto shift, both hands on handle bars, no hitting the horn button. I foot shifted the TURTLE and took him down !!!  What would be the big deal about any STREET BIKES having every electronic tool he can buy =  NO SLICK AND NO WHEELIE BAR is the only rule they should need not to race in ST/ET .  I race in PRO/ET [ because of the count they have only one class ] with folks that have boxes,bars,throttle stops, slicks, auto shifts and 130 -200 more Horse Power than me and if I'M good racing my bike then I GET THE WIN TICKET.

POPS BK911 NHRA "RULES "

[Bill/BentON Racing]

Pops,trans fine,but 750 kits usually have 15 mm pins,the 915cc ones from Ken @ Cycle X are light and tapered,but still 15's.Bigger market for 15 mm pin kits. Bill

[MRieck]

BILL: Your bike does have a race cut [ back cut ] gears with a SUPER STRONG  2nd. gear = right ?  And I would hope that you have 17-18mm wrist pins in pistons.............  seen many SS900cc Honda destroy the engine with a broken 15mm wrist pin.  My 1978 ZIR had a race tranny that was cryogenic and I broke 1st and 2nd gear and broke chains in the middle of the pin link that tore the left side of the motor off at the 1/8 mile. Put that CASE protector back on as if you break a chain it might roll it out the bottom and no harm.

DRAGRACER: At the Cup race I ran a guy who had a auto shift, both hands on handle bars, no hitting the horn button. I foot shifted the TURTLE and took him down !!!  What would be the big deal about any STREET BIKES having every electronic tool he can buy =  NO SLICK AND NO WHEELIE BAR is the only rule they should need not to race in ST/ET .  I race in PRO/ET [ because of the count they have only one class ] with folks that have boxes,bars,throttle stops, slicks, auto shifts and 130 -200 more Horse Power than me and if I'M good racing my bike then I GET THE WIN TICKET.

POPS BK911 NHRA "RULES "

[voodooracer]

 Hello again, all yous crazy guys and galls.
 Bless me father, for I have sinned. It's been since page 103 since my last visit.
 I love this thread and have taken to letting a while go by between visits just so I can spend time catching up and being absorbed by the interaction between all the players. The drama! The international intrigue! The outstanding cast of characters! The m/c porn?!!
 Seriously, there is no doubt of the sincerity and passion of all involved with this endeavor and it is indeed my privilege and pleasure to witness this (hopefully neverending) story unfold. It is about so much more than building a bike.
 Keep the faith and remember, no matter where you go....there you are.
 Keith LeBlanc

[Sam Green Racing]

Hello again, all yous crazy guys and galls.
 Bless me father, for I have sinned. It's been since page 103 since my last visit.
 I love this thread and have taken to letting a while go by between visits just so I can spend time catching up and being absorbed by the interaction between all the players. The drama! The international intrigue! The outstanding cast of characters! The m/c porn?!!
 Seriously, there is no doubt of the sincerity and passion of all involved with this endeavor and it is indeed my privilege and pleasure to witness this (hopefully neverending) story unfold. It is about so much more than building a bike.
 Keep the faith and remember, no matter where you go....there you are.
 Keith LeBlanc

Considering you're not even a SOHCamer, It's good to have you along Keith.
If you remember back a few years, we met up through our intrest in TWO STROKES 
As a member of the team and contributor to this thread, you can always lay claim to being one of the first people to see the Samauto make its maiden voyage.   the House of Hook, THERE YOU WERE

Sam.

[dragracer]

Hello again, all yous crazy guys and galls.
 Bless me father, for I have sinned. It's been since page 103 since my last visit.
 I love this thread and have taken to letting a while go by between visits just so I can spend time catching up and being absorbed by the interaction between all the players. The drama! The international intrigue! The outstanding cast of characters! The m/c porn?!!
 Seriously, there is no doubt of the sincerity and passion of all involved with this endeavor and it is indeed my privilege and pleasure to witness this (hopefully neverending) story unfold. It is about so much more than building a bike.
 Keep the faith and remember, no matter where you go....there you are.
 Keith LeBlanc

Considering you're not even a SOHCamer, It's good to have you along Keith.
If you remember back a few years, we met up through our intrest in TWO STROKES 
As a member of the team and contributor to this thread, you can always lay claim to being one of the first people to see the Samauto make its maiden voyage.   the House of Hook, THERE YOU WERE

Sam.

Yeah, and there he always is. I've been trying to get rid of this fella for over 10 years but he keeps following me around-lol.

Voodoo, are we ready to kick some butt this weekend? Looking forward to the surprises on some faces come first round eliminations.

[Sam Green Racing]

If you got lost in transit, would you not be there when you got there 

Sam.

[Bill/BentON Racing]

You would,therefore you are! Bill
Keith.Frank,keep us posted.Is Chainsaw back?

[dragracer]

You would,therefore you are! Bill
Keith.Frank,keep us posted.Is Chainsaw back?

Chainsaw has been resurected in some form. Voodoo has been making changes and testing every chance he gets. I'm hopeful he has whipped it into submission. I'm certain we shall see some round wins come saturday.

I'm off to the shop myself to complete my tear down of the wifes motor so i can clean up parts and begin reassembly of the bottom end with a new crank and cam chain. MTC should have my new piston on my door step in the morning along with replacement wrist pins and teflon buttons. I picked the freshened up head last night and just need to recheck the bench shimming on the valve clerance. Its going to be some long nights in the next few days.

[Sam Green Racing]

Good luck Frank, my night has just about ended, sleep tight people.

Sam.

[Bill/BentON Racing]

Sam,get to work! We are!!!  ;)Look what came in Z mail....all the way from down under!!!!

Oh it's just an empty box! ;)Well it had the first set you see in it!

That's rt,34mm CV's with lightweight slides
First set 34mm Keihin CV's off Honda CBX 750 1985 model
Second set CV's 32mm we're using now off Suzuki GS 750 mid-late 80's
Third set stock 28mm Keihin K model's
 
Bottom set what we have now,32mm's,top set 34 mm's!!!!!!
And who do we thank? One Mr Brian Williams aka BEAR!!!!!!!!!!!Thanks,bro,continued success,I'm looking!

Yes ,Brian,they need a little work!

Oughta flow mo CFM's!!!

I'm ON IT!!!!!!!

35 pilots,98 mains. Going with 40 pilots and 125 mains to start.
I think they need a bath!

So jump in ladies!!

Love those slides,lighter slides,heavier springs!

WE ARE GOING IN THE 11'S ,Bill

[Jim F]

for some reason I thought they where flat slide CV,s
most have been thinking of something else

J

[Bill/BentON Racing]

Jim,the modern day CBX's were/are flatslides.Beggars couldn't be choosy!!!! Still 2 mm bigger,idle linkage that works properly,matching,coated,lightweight slides,no broken off bits from friends who don't tell,Jon,has "your bud" passed inspection this year? Viton tip needles,plastic floats,wonder about mods like we did (Dynojet) or does down under sell kits?Anyway,I DAMN sure going to try them! THANKS,Bear,you rock,Bill

[Bill/BentON Racing]

Why I've been seeking out better carbs...so if the carbs won't do it..........Jim has been doing what we talked about...T/Q conversion....I TOLD you we going in the 11's.........My monster motor bike will see 10's...yes it will be an AUTOMATIC! Stay tuned!!
Jim a man of many talents! See we been busy!!!!

Jon,what you reckon this rpm stall will be?

WE WILL PREVAIL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ,Bill

[dragracer]

Now we're talking. If you can't find an expert to do the job, then figure out how to become the damn expert yourself. Great job on the converter Jim/Bill. Umm, when do you want to tackle the stall on my VW converter?-lol.

[bear]

Pleased to be of assistance.

Cheers,
Brian

[MRieck]

You fella's have been busy. I've been knocked out all week with a bad chest infection with flu like symptoms....just starting to come around.

[Jim F]

it sucks Mike when you have to sit on the toilette with a waste basket on your lap to put your head in
when you blow chunks out both ends
damn measurable and sorry you have to go threw that

[jweeks]

Bill,
     We've had this subject discussed before. I'm assuming that the picture of the torque converter parts are my pictures. The rewelded fins don't have great welding. Jim's a great micro-welder. That doesn't look like his work. His should be better! Stall rpm changes with the power of the motor. With a big enough motor making big torque you can approach 6,000 rpm on the starting line. That requires a lot of clamping force to hold it on the starting line. For now, just a guess at 3k+. It depends on the cam chosen, the size/setup of the carbs being used, the timing of the motor, and how much power it makes on the dyno (in the 3-5k range) Since this is changing, I really don't want to guess.
     The "racer" in question of my old carbs hasn't tried to race locally last year or the start of this season. Getting carbs right for a Hondamatic drag bike takes a lot of effort. You respace most CV carbs for the k head. Tightening the clearances between bodies requires a lot of small machinings and shortening of linkages. I couldn't figure out a way to save the push/pull dual cable mounts between the center carbs. That's why they need external return springs to help prevent what Sam experienced. I've purchased some Canadian 750 Nighthawk carbs for my next motor build, hoping for the correct spacing that others on this forum have found. They may be similar to what Bear sold you.
     Jon Tisdale races a 450A (well modified) in 100 foot drags in New York. He's got it geared for that length using BOTH gears. What holds it on the starting line? Dual rear calipers - one oem triple opposed, one oem dual opposed. With a lot of gearing, the load on the brake(s) increases. He's running in the 3's.
     Good luck with the brake air cylinder. CO2 tank? You won't have to refill every round that way. The line and fittings are critical for that application. Anywhere a line rubs, you'll eventually get an air leak. You've got a lot of test and tunes ahead of you to get it right for November.

                                                                                      Jon Weeks

[Sam Green Racing]

Jon, with the 125-75 and 295 cams. it would spin to just over 2500 to 2700 and the rear brake would sometimes let it creep if it got near 2700.
With the big pistons and 175-75 cam, it went to 3000 and pushed the bike forward with both brakes on, the front one was locked and sliding, this was in the paddock. I tried it on the sticky stuff before going into stage again with both brakes locked it pushed the front wheel with about 2800 on the tach.
With the big pistons, the 295 and line lock, we should be in business.

Sam.

[Bill/BentON Racing]

  Yes Jon,not sure of pics,but not Jim's work.We are finding new avenues as we(Jim)researches.We will be trying a modified set up one day...before Nov. and yes lot's to still do.Will PM you on computer.They really have 100 ft drags....WOW! Bill

[Sam Green Racing]

http://youtu.be/JykK3OtlOVo

[Jim F]

those pictures  are the ones that Jon E-mail to me
thats not my welding
but I am getting some good  ideas from these pictures
thanks Jon

I just need some detailed prints on the compound angle of how the fins are placed
also some dimensions on the stator

thanks again Jon

Jim

[Big Jay]

BILL And I would hope that you have 17-18mm wrist pins in pistons.............  seen many SS900cc Honda destroy the engine with a broken 15mm wrist pin.   

POPS BK911 NHRA "RULES "

You can not make enough horsepower in a Honda on gasoline to break one of my 15 mm pins.

[MRieck]

BILL And I would hope that you have 17-18mm wrist pins in pistons.............  seen many SS900cc Honda destroy the engine with a broken 15mm wrist pin.   

POPS BK911 NHRA "RULES "

You can not make enough horsepower in a Honda on gasoline to break one of my 15 mm pins.

I'm glad you used the word"gasoline" Jay. If you said "gas" Sam would think the stuff that powers furnaces and stoves.