Topic: My 1975 CB750K w/ Drouin Supercharger

[Bill/BentON Racing]

Opening round of IDBA 1st ever event in Farmington,N.C. 1977
750 belonged to Dale?,brother Roger had a 1080 street bike,I believe their Dad was local Honda dealer.
 

[Sam Green Racing]

They don't come much  er.

Sam.

[NitroHunter]

looks like old D&K frame, aka 'the nutcracker'. 
I can attest to that name from personal experience...     

[Bill/BentON Racing]

looks like old D&K frame, aka 'the nutcracker'.  
I can attest to that name from personal experience...      

You nailed it!! ,Bill....supercharged bike had RC 4-1,Barnett clutch and springs,struts,rear sets,reversed shifting,MX Yamaha rear fender,front?,Mike Todd paint job,low bars,drilled and lightened f/disc,630 chain kit,small tailight,Drag Specialties seat,chrome gauge cvrs.,race grips,quartz headlight,Accel wires,different levers,blacked out engine,and lots of weight removed...ran high 7's in the 1/8 mile. FUN!Bill

[NitroHunter]

That blower bike must have been a real tire smoker when you yanked the throttle.
None of that turbo lag stuff... Nice bike, do you have any larger pics?

[Bill/BentON Racing]

That blower bike must have been a real tire smoker when you yanked the throttle.
None of that turbo lag stuff... Nice bike, do you have any larger pics?

NitroHunter,it was!Spin thru first,some in second,bark going into third....yeh it was a blast,neat sound also.I have a larger pic,but wouldn't copy properly.I'll try again.Bill

[DaleKey]

Good morning all!
I'm new to this forum as a result of a search about IDBA and coming across this particular thread.  In the photos above, the bike on the right is/was mine.  Th CB750 engine was bored to 836cc (8.0 compression ratio pistons) and had an ATP turbocharger pumping about 18 lbs of boost.  Unfortunately, I crashed it at the Bristol race in June 1977 (143.08 mph), so only pieces of it remain.  Bill, the original poster, has a GREAT memory.  Of note is that my brother's name is Earl instead of Roger, whose bike had an RC Engineering "Killer" engine and raced Pro Stock.  And... our parents did own the Honda dealership in Rockingham, NC at that time.

This thread was fantastic to find yesterday; thanks for posting!
Dale

[MRieck]

Good morning all!
I'm new to this forum as a result of a search about IDBA and coming across this particular thread.  In the photos above, the bike on the right is/was mine.  Th CB750 engine was bored to 836cc (8.0 compression ratio pistons) and had an ATP turbocharger pumping about 18 lbs of boost.  Unfortunately, I crashed it at the Bristol race in June 1977 (143.08 mph), so only pieces of it remain.  Bill, the original poster, has a GREAT memory.  Of note is that my brother's name is Earl instead of Roger, whose bike had an RC Engineering "Killer" engine and raced Pro Stock.  And... our parents did own the Honda dealership in Rockingham, NC at that time.

This thread was fantastic to find yesterday; thanks for posting!
Dale

Well.....proof that the internet can be a positive thing!

[754]

How much hp did the killer make?  Did you have a dyno to use back then ?

[Bill/BentON Racing]

Good morning all!
I'm new to this forum as a result of a search about IDBA and coming across this particular thread.  In the photos above, the bike on the right is/was mine.  Th CB750 engine was bored to 836cc (8.0 compression ratio pistons) and had an ATP turbocharger pumping about 18 lbs of boost.  Unfortunately, I crashed it at the Bristol race in June 1977 (143.08 mph), so only pieces of it remain.  Bill, the original poster, has a GREAT memory.  Of note is that my brother's name is Earl instead of Roger, whose bike had an RC Engineering "Killer" engine and raced Pro Stock.  And... our parents did own the Honda dealership in Rockingham, NC at that time.

This thread was fantastic to find yesterday; thanks for posting!
Dale

Damn,Dale,just saw your post! How cool,yes this forum rocks! Remember meeting you and wanting a "Nutcracker" bad! So purpose built! Wow,bro still got his,I'll PM you,always good to hear from people back in the "day". That was a fun weekend,met Byron and Terry.But your bikes were two of the best,we want more info,times ,mph,etc ...we love pics!!! So cool,love this forum,real cool,Bill
A pic of a pic,took it that same weekend,Byron Hines in white t shirt with rag in back pocket,his std wear,until they got BIG!

[DaleKey]

How much hp did the killer make?  Did you have a dyno to use back then ?

Hi 754.  We didn't have a dykno, and I don't recall the hp numbers.  Sorry!

[DaleKey]

Damn,Dale,just saw your post! How cool,yes this forum rocks! Remember meeting you and wanting a "Nutcracker" bad! So purpose built! Wow,bro still got his,I'll PM you,always good to hear from people back in the "day". That was a fun weekend,met Byron and Terry.But your bikes were two of the best,we want more info,times ,mph,etc ...we love pics!!! So cool,love this forum,real cool,Bill
A pic of a pic,took it that same weekend,Byron Hines in white t shirt with rag in back pocket,his std wear,until they got BIG!
[/quote]

Hi Bill,

I guess you can tell how excited I was about finding this thread.  And yes, it was a GREAT weekend.  I must say, you have a fantastic memory.  In fact, if I hadn't seen Dale mentioned during the search I made I may not have looked.  I'll see what I have and try to get another photo or two posted.

For Byron, the rag in the back pocket was vintage Byron. Every race I saw him it was the same, rag in the back pocket.

Dale

[Billys mate]

Hi Dale, welcome to the forum, seems like Bill has gone from BILLY NO MATES to BILLY 2 MATES overnight.

Billys mate.

[Sam Green Racing]

Billy has lots of mates MATE, and welcome to the forum yourself.

Sam.

[Bill/BentON Racing]

Found a little better pic! It was a hell of a lot of FUN!!!!! Bill

[shpwrk]

Looks very cool....  Was that set up using the mech. injection that came with Drouin..  Mine is all rebuilt need to finish engine and rest of bike.. Will be in a show go café racer.......
 

[Bill/BentON Racing]

Yes, I used the stock setup. Took a while to get it right, needs an A&B cable also, Bill