Topic: 1080cc bike?

[andy750]

Here is a few more pics of the motor....











thats all I have.

cheers
Andy

[narcoticrex]

Well, if nothing else, he sure knows his stuff about mad max. i just rewatched the original mad max, and the classic 70s cafes and gear in that movie are amazing.  I absolutely love Bubba Zanettyis helmet, it looks so 70s!  Actually, it looks like a LEGO space helmet haha! I wish I had one....


actually, I think this is it: http://cgi.ebay.com/ebaymotors/Vintage-BELL-Motorcycle-Helmet-STAR-II-1975_W0QQcmdZViewItemQQcategoryZ6749QQihZ025QQitemZ380021020509QQrdZ1QQsspagenameZWDVW

[MRieck]

Whats with all the talk in the ebay listing of arm-stretching, nut-crushing power out of this bike?  Sure, it probably makes good power compared to a stock 750, but arm-stretching, nut-crushing power?  Thats Hayabusa and ZX-14 territory, which no 750 or 1080 Honda  from the 70's is  ever going to be able to touch.

I love these old girls as much as anyone else, but lets be realistic here, Carpy.

The Carpster does have a way with descriptive embellishment. I'm sure the bike possess all those qualities......when compared to other bikes from 35 years ago.

[Jerry Rxman Griffin aka MuthaF'er]

Will someone figure the actual displacement for me in case anyone is in doubt? I have a NOS set of BIG pistons for my build (when it finally gets done). They are 73.75mm. 

[eldar]

I guess you have to look at what the bikes are. They are 30+ years old. Sure you can do quite a bit with them, quite a bit really. They are also damn near indestructible unless you forget oil!
I like my bike, I want to juice it up some year with an 836 but I want to keep it around and reliable to ride any time I want. So if I need my nuts ripped off, I will get a v65 sabre!

[754]

I think a good running 1000cc sohc Honda would rip a v65 a new one

 That piston looks like it may be 1080, my 970 slugs measure right around 2.755.. and are 70 mm

RC lists 73mm/2.875 as 1080 slugs.. do you want to part with them?

[754]

If you want a Bell like the first pic I will sell one for 50.00 plus shipping, an original Star.. part of the welt in the "window "is missing. 

The second bubba pic is a different window its wider on top..

[gregimotis]

Okay, MRieck called BS on Carpy,

Then Eldar pasted something about welding air gaps,

And then hapsh pos..po...uhmmm...





Now we're on page three, what were we talking about again?

[jaguar]

where can you get parts to build one of these mountain motors?

[eldar]

the sabre would blow all over the cb even at 1080. The sabre is 121 hp stock. It is capable of over 70 mph in 2nd with 4 gears left. o-50 time is about 2.5 seconds.

Top speed is about 170 mph. 

The magna had a quarter time of under 11 seconds. Stock.

http://powersports.honda.com/the_story/heritage/heritage_milestone.asp?Decade=1980&TargetUrl=Milestone/Milestone_Model_0104.asp&PrevPageTitle

http://powersports.honda.com/the_story/heritage/heritage_milestone.asp?Decade=1980&TargetUrl=Milestone/Milestone_Model_0107.asp&PrevPageTitle=

It is still a fast bike even by todays standards. No I dont think a cb with a 1080 would stand a chance. Unless the sabre rider is poor and the cb rider is great, then maybe.

[754]

Well Eldar, I think that is the bike for you...

 Actually Dale walker went quicker than that on a CB 750 that was a 1000cc or less as did Russ Collins...


 on a punched out 750A...lol..

[eldar]

Post it then. I posted ona STOCK v65. On the street, no cb750 will touch it. The sabre will still keep pace with many rockets made today. It is well understood no cb750 will do that.

lol LOL even more

[eldar]

Oh by the way, FROM DALE'S OWN WEBSITE.

http://www.holeshot.com/old/dwracing/70s.html

He did NOT do that on an auto. his own site says in the 12 second range. 12.30s

11.5 punched out to 1000 AND a turbo.

Now is 750 DRAG bike was faster but then it was 1170 cc running 14:1 comp ratio.
So sure a cb can keep up to a stock sabre on the strip but the 750 wont last on the street.

[Jerry Rxman Griffin aka MuthaF'er]

I think a good running 1000cc sohc Honda would rip a v65 a new one

 That piston looks like it may be 1080, my 970 slugs measure right around 2.755.. and are 70 mm

RC lists 73mm/2.875 as 1080 slugs.. do you want to part with them?

Sorry but no. Russ said he didn't do cast and these are .75mm bigger than his. Nice guy. I will eventually have it put together. I have a Big Jay crank with Carrillos installed and a big valve MRieck head awaiting. Non welded barrels. It's not a longevity thing, it's a monster motor thing.      One of these days............  I gotta have some buttons turned and the top case opened up still then buy a bunch more studs, gaskets, seals, bearings, etc then take some pix of it going together.

[754]

I know they are .030 thou over.. That and the fact that some say  the 73mm is under 1080, will make them 1080 for sure. They are overbores for 73mm..

 So start off at 73mm & keep this for oversize..

[754]

Too bad your 750 cant do 70 in second because mine sure can..

Anyway forgot about the 1080s for a second..
 Lets talk about an RC ENG, not yet mentioned..
 This from the catalog..
1000cc Turnpike Terror.
   ..docile enough for everyday use.
...If you wish to race this motor it will yield 10.90s @ 125mph+ IN THE 1/4 MILE, ALL DAY LONG. This is not an RC race motor, and should not be considered if you wish to use your bike as a racer. The "Turnplke Terror" is the perfect choice for those who want a fast, dependable street bike without the complications of a racer. This is the combination we feel is the safest, most reliable, and fastest for street use.

 Then there was the more powerful Cobra motor..

[754]

The Auto Dale ran was a consistent bracket racer that ran 12.3..do you know how that racing works?

Collins built an Auto that ran 10,s.


Dale did 11.18 on an 836cc Honda.. same ET as an SS CBX he ran later.

He ran a 10.6et with an 820cc turbo CB750.

Not a sohc Honda, but he took a KZ650 punched to 750 and ran 10.3 with it.
-----------------------------------------This was all done prior to about 1980 or 81-----------------

He also ran a 1170cc sohc Honda four at 9.39 @ 142mph..

gee that could be a  bit slower on the street like 10 flat...

[eldar]

Like I said. Post it. I posted my sources which say nothing about what you claim  about Dale. Come on show it. I found info that says NO to what you are trying to say. Come one show it. You like to quote it but without sources, well then it is an opinion. So a seriously worked over cb might be able to beat a sabre, if the sabre is STOCK. Lets see what would happen now if the same amount of work were done to the sabre. What do you think the result would be? The sabre whipping the cb? Oh I bet it would.
Oh but a cb can beat anything right? Could strap a rocket on it and beat anything.  Could you at least be a LITTLE realistic?

As for your crack about my bike. All I can say is that my bike is every bit the equal yours is. After all, it has been quoted WITH SOURCES that the 77/78 were right on the tail of the holy grail 69, if not possibly beating it. As YOU DO NOT have a 69, it must therefore be concluded that stock on both sides ends up with my bike being faster. I have done 60 in 2nd but I see no reason to flog on things, especially since I did it in town.

OH wait, I forgot, you are the expert over everyone else, even if you have no sources to back things up.

[goon 1492]

Check this out from axl, he pops in here from time to time.
Knows his stuff.

http://www.satanicmechanic.org/bigbore.shtml

Goon, you cant tell engine size from the oil cooler. All the 750 engines use the same size units. you can put a bigger one on if you want but it is not a direct indication of size.

LOL Eldar i wasn't meaning that, I was just stating that its the same cooler that is on mine and i havn't seen that brand on any other sleds yet.  Guess i should have made it more clear the first time. 
Also You want to talk about power get a turbo busa motor and put it on a shifter cart, or even a gsxr. ooooooohh mama Don't brake till you see god!

[754]

Eldar, the references I made to Walker were off the same page you used and the one following it (the 80,s)

I quoted part of the R..C catalog when I  listed part of the description of the milder 1000cc they offered, the Turnpike Terror.

Your bike sounds stock, mine is not, I dont see why anyone would compare them..


I coulda swore you posted no CB 750  would ever beat a stock Sabre or Magna, when I had said a 1000cc one could.

[eldar]

Goon, heard enough about the busa that I am not sure I would want to ride one! Sometimes wonder if it should be renamed the deathmachine!  I doubt the full capabilites of that bike are even remotely reached on the street! Definitely a bike to be respected.

No prob about the oil cooler.

Just a Q for ya. When someone wants you to hit the gas, do they say "GOON IT!"?

[eldar]

Yes my bike IS stock and if I wanted, would get to 70 in second but would probably be close to red line. Some day it wont be stock, but then if I get a sabre or even magna, it will remain stock or mostly so. Right now it would be considered 95-99% stock.

Change side covers as mine got shattered by hail. Sissy bar on the back instead of the normal grab bar. Different shocks and different headlight. Thats about it.

As for all the quarter times. It should be noted that most are still slower than the sabre is stock. Once you actually compare apples to apples, meaning the same work done on both bikes, the sabre would still be faster. Just as a busa would be faster than a sabre.

[754]

You did say stock Sabre..

 now you are changing to modded sabre..

[eldar]

No Now I am comparing an apple to an apple. Before it was a heavily modded CB bike to a stock sabre. At that point and only that point was the cb as fast or in a couple rare cases, faster. You mod the sabre and the modded cb simply will not keep up.

[754]

"would probably be close to redline".. does this mean you have never taken your bike to redline??