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Author Topic: Project Undecided  (Read 2104 times)

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Offline Bambi

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Project Undecided
« on: June 18, 2013, 03:04:06 PM »
Hey all, I've always loved motorcycles and have admired a great deal of specifics about a great amount of different bikes. I don't know how long this is gonna take but, I plan on going over the top and creating what in my head is the bees knees. I wanna craft the perfect woman than I want to make love to that woman. I'm starting with the foundation with the heart, with the engine, than ill bring in the personality, than the looks.

That being said I understand woman just as good as good I understand these motorcycles which is just like a school boy, ambitious. I'm gonna need help, I don't know what the explicit I'm doing, but hopefully by the end ill know a whole hell of a lot more.
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Offline davidtime

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Re: Project Undecided
« Reply #1 on: June 18, 2013, 03:07:41 PM »
Got some pictures to start with?
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Offline Bambi

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Re: Project Undecided
« Reply #2 on: June 18, 2013, 03:15:44 PM »
I've started opening the engine, taken off the valve cover, removed the rockers, camshaft, and various housings. Removed top half portion leaving I'm the Valve springs, which I'm illiterate on. I don't know what I'm looking for, so here's a couple pictures as I move forward.
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Offline Bambi

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Re: Project Undecided
« Reply #3 on: June 18, 2013, 03:52:51 PM »
My first question is a broad one, but I want a good deal of horsepower, I'm not taking it to the track but what's it gonna take to get 1000cc?
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Offline davidtime

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Re: Project Undecided
« Reply #4 on: June 18, 2013, 04:40:16 PM »
A new engine! Is it a 550 or 750? I think I have seen 900 something on the 750. I have a 550 and I'm a newbie to these.
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Offline SOHC4 Cafe Racer Fan

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Re: Project Undecided
« Reply #5 on: June 18, 2013, 05:33:15 PM »
Quote from: Bambi on June 18, 2013, 03:52:51 PM
My first question is a broad one, but I want a good deal of horsepower, I'm not taking it to the track but what's it gonna take to get 1000cc?

Bambi,

I assume you meant 100 hp, and not the displacement of the engine.  Even with horsepower, there is horsepower measured at the crankshaft, and at the wheel; there is aapproximately 10% parasitic loss from the crank to the wheel (what you get actually turning the wheel).  Speaking of displacement, assuming you have a 750cc, you can bore the engine to a larger size like the 915cc kit offered by Cycle X.  If you are aiming for 100 hp on a CB750 engine, you will likely need to speak to Mike Reick about porting your head.  You will also need to replace and beef up many of the engine components (primary chains, cam chains, tensioners, clutch, etc) if you want the engine to reliably run that kind of power.

Equally important is weight.  The more weight you can eliminate from the bike by eliminating unnecessary parts or replacing heavy parts with lighter parts, the better power to weight ratio and the faster and more agile the bike becomes. 
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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)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline Retro Rocket

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Re: Project Undecided
« Reply #6 on: June 18, 2013, 05:39:12 PM »
Unless you have lots of money to throw around, i suggest doing a lot of reading and asking a lot of questions. To build a big horsepower reliable 750's you need a lot of quality parts, once you get over 836cc almost everything in the engine needs replacing....
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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 Bambi

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Re: Project Undecided
« Reply #7 on: June 18, 2013, 05:40:54 PM »
I do have a 750 that information I should have included, and yes 90-100hp would be a goal to strive to. I wanna do this bike right so cost isn't an issue it's more of just getting it done right.
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Offline davidtime

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Re: Project Undecided
« Reply #8 on: June 18, 2013, 05:45:09 PM »
Aww that would be nice not having cost as an issue. I'm jealous!
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Offline Retro Rocket

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Re: Project Undecided
« Reply #9 on: June 18, 2013, 06:12:48 PM »
Quote from: Bambi on June 18, 2013, 05:40:54 PM
I do have a 750 that information I should have included, and yes 90-100hp would be a goal to strive to. I wanna do this bike right so cost isn't an issue it's more of just getting it done right.

I was just saying, I have well over 5 grand in a 1000cc engine I am building and i still have another 3-5 grand to spend on it, Thats not including the rest of the bike.
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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 davidtime

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Re: Project Undecided
« Reply #10 on: June 18, 2013, 07:51:26 PM »
 :o
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Offline Retro Rocket

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Re: Project Undecided
« Reply #11 on: June 18, 2013, 08:04:59 PM »
Quote from: davidtime on June 18, 2013, 07:51:26 PM
:o

 ;D   After owning most bikes I have ever wanted {40 odd bikes}including  around 20 750/4's, and modified most of them, I am doing what the OP here wants to do and it ain't cheap, but i really don't care as I am building a one off bike and collected enough parts along the way to build 2 others, by the time I sell those 2 my 1000cc bike will almost cost me nothing... 8) {thats the plan anyway}
The other 2 are 900cc and 970cc both with lots of mods....   Yes, I am a glutton for punishment.... :o ;D

Proceed.... ;D ;)
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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 iron_worker

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Re: Project Undecided
« Reply #12 on: June 19, 2013, 07:31:24 AM »
Agreed with RR. It's gonna take $. Lots of it. I have over $3k in my pretty much STOCK rebuild! And that's all the work done by myself except for the machining/balancing.

IW
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