Author Topic: hotrod heart,a new engine  (Read 14920 times)

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Offline BPellerine

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Re: hotrod heart rc swingarm mockup
« Reply #100 on: May 25, 2015, 03:25:15 PM »
thanks for the info greg,that is what I want from this bike,there is a local guy here running an 8ins over swingarm on a modern sportbike and I met him on a turn the other day and he was not losing any time!I always try to pull forward and back into parking spaces so I do not have to push myself out,much easier.bill
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Offline Retro Rocket

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Re: hotrod heart rc swingarm mockup
« Reply #101 on: May 25, 2015, 04:13:57 PM »
Hi Bill, there is no way ever, that a bike with such an extended swingarm will handle as well as one with the correct length, its physically impossible, you only have to talk to anyone that knows anything about motorcycle geometry to confirm this. If you aren't going to go looking for corners on a Sunday morning and just want to cruise around and blast on the straights, then fine,  but don't let anyone convince you that a 6/8  inch over arm handles any where near as well as a properly engineered arm at proper length, thats pure fantasy... ;)  I'll add that, this isn't my argument, this is well documented fact, you will never see one that long at a circuit race, for very good reason... ;D ;)
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Offline 754

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Re: hotrod heart rc swingarm mockup
« Reply #102 on: May 25, 2015, 04:37:27 PM »
I think he already knows that..
 I. Would rather run the long arm than stock.., just works fine for the riding I do..

.plus it cuts down on tickets..or even worse now..them taking your bike away..
Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline Retro Rocket

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Re: hotrod heart rc swingarm mockup
« Reply #103 on: May 25, 2015, 04:54:55 PM »
I think he already knows that..
 I. Would rather run the long arm than stock.., just works fine for the riding I do..

.plus it cuts down on tickets..or even worse now..them taking your bike away..

Not necessarily posting that for Bill, its for anyone reading that doesn't know either way.. ;)
 
You have "hoon" laws there as well eh..? Do they crush the vehicle after a 3rd confiscation..?
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 BPellerine

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Re: hotrod heart rc swingarm mockup
« Reply #104 on: May 25, 2015, 05:51:17 PM »
I completely understand the handling aspect of this,my commando had every mod you could do at the time to make it handle and it did with real sticky race rubber that would come off in balls when you used it hard,used to hang out at our local roadrace track and watch the vintage bikes run.I just mentioned the sportbike because it is the only one I have ever seen setup like that,it looks kinda strange.over here you get charged with stunting when you get caught at really high speed or doing doughnuts etc.not trying to talk anyone into doing this,it is something I want to try,60 this year so those days are gone.bill
1978 CB 750K ard and webers
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Offline jaguar

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Re: hotrod heart rc swingarm mockup
« Reply #105 on: May 26, 2015, 08:18:10 AM »
Sure on a race track at 10/10 a long arm will kill lap times.
But on the street you are not racing a clock.
Yeah the bike will not handle as well, and the rider defiantly needs to understand the change.
But I don't think that the extended arm will make it useless on the street.

Offline BPellerine

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Re: hotrod heart rc swingarm mockup
« Reply #106 on: May 26, 2015, 02:51:17 PM »
me either jag,it is 6ins over and looks cool as hell!bill
1978 CB 750K ard and webers
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Offline BPellerine

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Re: hotrod heart rc swingarm mockup
« Reply #107 on: July 22, 2015, 05:52:07 PM »
a little update on the bike
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Offline Greg H

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Re: hotrod heart rc swingarm mockup update
« Reply #108 on: July 25, 2015, 06:01:10 AM »
Hi Bill . I'm liking the look of your bike .
It looks , as they say around her, "proper " ;).
P.S I have to say those webbers and that ard mag look ace . Greg "H".

Offline Bill/BentON Racing

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Re: hotrod heart rc swingarm mockup update
« Reply #109 on: July 25, 2015, 11:07:28 AM »
Yeah Bill cool bike. And you got stuff coming. Didn't know about this one!  ;D Neat work mon!  ;) Got another set of Webers! Need BillP to the rescue!   8) Bill
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Over 35 years of experience working on vintage motorcycles, with a speciality in Honda SOHC/4 with a focus on the CB750 and other models as well from 1966 - 1985.
______________________________________
1993 HRC RS125 | 1984 NS400R | 1974 Honda CB750/836cc (Calendar Girl) | 1972 CB 500/550 Yoshi Kitted 590cc | 1965 Honda CB450 Black Bomber | 1972 Suzuki T350 | 1973 88cc | Z50/Falcons Pit Bike | 1967 CA100| 1974 CB350 (400F motor)...and more.
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Offline BPellerine

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Re: hotrod heart rc swingarm mockup update
« Reply #110 on: July 25, 2015, 02:10:49 PM »
thanks bill not too bad for a rookie?will help you in any way I can!bill
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Offline BPellerine

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a new heart for the hotrod
« Reply #111 on: February 20, 2016, 01:10:47 PM »
I thought I would dig up my thread and post some updates,been working on a bigger engine for awhile now,and finally have it done,install in the spring


ha 900 kit in ko cyls

ko head with some light porting on the inlets,chambers look like hondamans head mods,they come stock like this
jugs on the 78 bottom end,new primary chains,rod and main bearings,seals,hd camchain,rc rods
head on,new seals,exhaust guides,seats recut,hd springs,ape sprocket,cx1 cam to get some practice degreeing cams
a little bling if I want it
and finally my fibre form tank that I will use,going to make the bike convertible from stock tank to this one when I want


just a little update.billp
« Last Edit: February 20, 2016, 01:31:58 PM by BPellerine »
1978 CB 750K ard and webers
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Offline SOHC4 Cafe Racer Fan

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Re: a new heart for the hotrod
« Reply #112 on: February 20, 2016, 06:11:16 PM »
1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

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1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
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Offline 754

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Re: hotrod heart,a new engine
« Reply #113 on: February 20, 2016, 08:37:23 PM »
Looking good Bill hope the rest of the tank cleans up...cool piece.. Your bike will look lean. With it and. Motor lok bigger..
Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline Bill/BentON Racing

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Re: hotrod heart,a new engine
« Reply #114 on: February 21, 2016, 05:10:28 AM »
Nice work, really nice tank! Lol.
BentON Racing Website
OEM Parts | Service | Custom Builds
BentON Racing Facebook
Over 35 years of experience working on vintage motorcycles, with a speciality in Honda SOHC/4 with a focus on the CB750 and other models as well from 1966 - 1985.
______________________________________
1993 HRC RS125 | 1984 NS400R | 1974 Honda CB750/836cc (Calendar Girl) | 1972 CB 500/550 Yoshi Kitted 590cc | 1965 Honda CB450 Black Bomber | 1972 Suzuki T350 | 1973 88cc | Z50/Falcons Pit Bike | 1967 CA100| 1974 CB350 (400F motor)...and more.
______________________________________
See our latest build 'Captain Marvel' CLICK HERE

Offline BPellerine

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Re: hotrod heart,a new engine
« Reply #115 on: February 21, 2016, 10:09:47 AM »
thanks guys,a special thanks to Bill Benton from whom that tank came from,it was black when I got it ,tried to save the artwork,and for the most part I did,the small black spot are chips out of the fiberglass,might be forced to repaint,or it can be a relic with some clearcoat.got a couple of hotter cams I can try when I get my head around degreeing them,the cx1 wont bang any pistons if I get it wrong.not a full on perf build and not a lot of fancy internals,hoping for a good street engine.got the needs taken care of,gotta separate them from the wants,just gotta get a chrome dyno cover to complete the look I want.billp
1978 CB 750K ard and webers
another anfob