Author Topic: Which piston Kit do you think i should use witrh my RC parts?  (Read 2029 times)

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Offline Tom

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Which piston Kit do you think i should use witrh my RC parts?
« on: February 24, 2010, 05:16:36 pm »
Hi Guys, My first post, although have been reading many, I'm from Queensland Oz..
I have been collecting HP parts and want to build a replacement engine for my Rickman it had a 71mm 1000cc MTC and was leaking oil everywhere from the gooped up barrels, in 1975-76 i built a RCE 70mm 970cc and had much the same problem it went bloody good and not much could get near it just messy... so i am over the oil leaks from seeing sleeves... wind the clock on thirty five years and i am at it again..Sucker...
For my new project i have the following Lightened RC Crank, lightened RC rotor, Yoshi Alloy Superrods, a Norris RX3 billit cam if anybody has info on it i would be greatfull, a RC adjustable cam sprocket, a RC ported head with Manley ss oversize valves and heavy springs and alloy retainers, a Barnett clutch and a gearbox with undercut dogs, a welded up clutch hub, heavy Duty barrel studs, i have a set of 29mm smooth bores and my question is as far as piston kits,
What do you think i should use?
I have the following available
a New Powerall 64.75mm  830cc  Kit barrels are bored and ready to go, dome piston with teflon buttons.
i have a nice used set of Venolia forged 66.5 mm flat top pistons they weigh aprox .167 grams bare without rings and pins
I have a new set of Henry Abe 67mm  895cc cast slipper pistons they weigh aprox .175 grams again bare without pins or clips, C/w new cast iron sleeves.
and a set of new Henry Abe 67mm 895cc cast flat top pistons that weigh aprox .181 grames bare. The barrels are resleved and bored ready to go.
which do you think, i believe that i could also use the Henry Abe sleeves with the venolias at 66.5 and have the Henry Abes as a back up at 67, those sleeves dont need the cases machined.. thanks Tom
 
« Last Edit: February 24, 2010, 05:58:50 pm by Tom »
'59 T120.,'70 T120R Had one new.,'69 CB750 Oz Sandy Ruby Red.,'69 CB750 Oz Sandy Blue Green.,'70 CB750 K0 Candy Gold.,'71 CB750 K1 Valley Green I bought new.,'71 CB750 Candy Garnet Brown.,'76 Rickman Honda CR750 R.C. Eng Cobra Powered.,Two CB750 Santee Choppers a Hard and a Softtail.,and lotsa fun Honda Monkey bikes.

Offline Tom

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Re: Which piston Kit do you think i should use witrh my RC parts?
« Reply #1 on: February 24, 2010, 05:34:14 pm »
Here are some pics of my goddies









'59 T120.,'70 T120R Had one new.,'69 CB750 Oz Sandy Ruby Red.,'69 CB750 Oz Sandy Blue Green.,'70 CB750 K0 Candy Gold.,'71 CB750 K1 Valley Green I bought new.,'71 CB750 Candy Garnet Brown.,'76 Rickman Honda CR750 R.C. Eng Cobra Powered.,Two CB750 Santee Choppers a Hard and a Softtail.,and lotsa fun Honda Monkey bikes.

Offline Tom

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Re: Which piston Kit do you think i should use witrh my RC parts?
« Reply #2 on: February 24, 2010, 05:46:01 pm »
and the Pistons first the Powerall 64.75 mm

Then the Venolias and i can see a clip in there...

then the HA slipper Pistons 67mm

then the HA Flat tops again 67mm

studs

Hex screw for adjusting cam

clutch hub
'59 T120.,'70 T120R Had one new.,'69 CB750 Oz Sandy Ruby Red.,'69 CB750 Oz Sandy Blue Green.,'70 CB750 K0 Candy Gold.,'71 CB750 K1 Valley Green I bought new.,'71 CB750 Candy Garnet Brown.,'76 Rickman Honda CR750 R.C. Eng Cobra Powered.,Two CB750 Santee Choppers a Hard and a Softtail.,and lotsa fun Honda Monkey bikes.

Offline Tom

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Re: Which piston Kit do you think i should use witrh my RC parts?
« Reply #3 on: February 24, 2010, 05:48:36 pm »
And Most importantly this is a street engine and the occasional drag what ya think ;D Thanks Tom
'59 T120.,'70 T120R Had one new.,'69 CB750 Oz Sandy Ruby Red.,'69 CB750 Oz Sandy Blue Green.,'70 CB750 K0 Candy Gold.,'71 CB750 K1 Valley Green I bought new.,'71 CB750 Candy Garnet Brown.,'76 Rickman Honda CR750 R.C. Eng Cobra Powered.,Two CB750 Santee Choppers a Hard and a Softtail.,and lotsa fun Honda Monkey bikes.

Offline Sam Green Racing

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Re: Which piston Kit do you think i should use witrh my RC parts?
« Reply #4 on: February 24, 2010, 10:42:40 pm »
And Most importantly this is a street engine and the occasional drag what ya think ;D Thanks Tom

And most importantly, a heavy duty straight plate cam chain and ditch the stock tensioner, get one from M3.

Sam. ;)
C95 sprint bike.
CB95 hybrid race bike
CB95 race bike
CB92
RS 175. sprint/land speed bike
JMR Racing CB750A street ET drag bike

Offline Sam Green Racing

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Re: Which piston Kit do you think i should use witrh my RC parts?
« Reply #5 on: February 24, 2010, 10:44:50 pm »
and welcome ;D ;D ;D ;D ;D
C95 sprint bike.
CB95 hybrid race bike
CB95 race bike
CB92
RS 175. sprint/land speed bike
JMR Racing CB750A street ET drag bike

Offline Tom

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Re: Which piston Kit do you think i should use witrh my RC parts?
« Reply #6 on: February 24, 2010, 10:58:32 pm »
And Most importantly this is a street engine and the occasional drag what ya think ;D Thanks Tom

And most importantly, a heavy duty straight plate cam chain and ditch the stock tensioner, get one from M3.

Sam. ;)

Thanks Sam, yes i will use straight plate cam chain, and i will look at the M3 tensioner, i met Mark at VMD '09.
Talking to a guy here he was saying its better to stagger a link on the primary chains, Do you guys know about this? thanks and what pistions do you think? T
'59 T120.,'70 T120R Had one new.,'69 CB750 Oz Sandy Ruby Red.,'69 CB750 Oz Sandy Blue Green.,'70 CB750 K0 Candy Gold.,'71 CB750 K1 Valley Green I bought new.,'71 CB750 Candy Garnet Brown.,'76 Rickman Honda CR750 R.C. Eng Cobra Powered.,Two CB750 Santee Choppers a Hard and a Softtail.,and lotsa fun Honda Monkey bikes.

Offline Retro Rocket

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Re: Which piston Kit do you think i should use witrh my RC parts?
« Reply #7 on: February 24, 2010, 11:07:49 pm »
Hi Tom, Jay at APE Engineering has brand new forged 71 mm pistons for sale now, i have 2 sets of them one 70mm {970} and the other is 71mm {1000}. Forum member Mike Reick also has billet aluminium blocks, i have one coming with nikasil bores for my 1000cc build. I also have an engine full of RC gear. Where abouts in QLD are you? PM me with your phone number and we can have a chat about where to get everything you need..

Mick
750 K2 1000cc
750 F1 970cc
750 Bitsa 900cc
If You can't fix it with a hammer, You've got an electrical problem.

Offline Sam Green Racing

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Re: Which piston Kit do you think i should use witrh my RC parts?
« Reply #8 on: February 24, 2010, 11:17:19 pm »
And Most importantly this is a street engine and the occasional drag what ya think ;D Thanks Tom

And most importantly, a heavy duty straight plate cam chain and ditch the stock tensioner, get one from M3.

Sam. ;)

Thanks Sam, yes i will use straight plate cam chain, and i will look at the M3 tensioner, i met Mark at VMD '09.
Talking to a guy here he was saying its better to stagger a link on the primary chains, Do you guys know about this? thanks and what pistions do you think? T

Personally, I wouldn't use any of them if you're going to do the odd drag race, get yourself a modern set of forged pistons, the old stuff has to be stressed to a certain extent. JMHO.

Sam. ;)
C95 sprint bike.
CB95 hybrid race bike
CB95 race bike
CB92
RS 175. sprint/land speed bike
JMR Racing CB750A street ET drag bike

Offline kos

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Re: Which piston Kit do you think i should use witrh my RC parts?
« Reply #9 on: February 25, 2010, 06:38:56 am »
And Most importantly this is a street engine and the occasional drag what ya think ;D Thanks Tom

And most importantly, a heavy duty straight plate cam chain and ditch the stock tensioner, get one from M3.

Sam. ;)

Thanks Sam, yes i will use straight plate cam chain, and i will look at the M3 tensioner, i met Mark at VMD '09.
Talking to a guy here he was saying its better to stagger a link on the primary chains, Do you guys know about this? thanks and what pistons do you think? T

Stager link on primary. I never do this and advise that you make sure they align links when assembling, even the most humble street bike engine. Also, see the photo Tom had showing the RC Engineering mod to weld primary tensioner together as one. As I stated on another thread. must have both pulling together at same time.

KOS

220...221, whatever it takes.


 

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