Author Topic: World's quickest SOHC? (Read 21018 times)

mick7504 · « **Reply #25 on:** January 30, 2011, 07:04:19 PM »

I'm not sure about the other rods but they possibly do have a 17mm pin and don't know about journal compatability.
The 900 and 1100 DOHC rods will go onto the SOHC crank no problems and the block needs to be packed up 1.5mm with a spacer.
VFR or CBR pistons would probably go in with some modifying.
I remember looking at some "Z" Kawasaki/Wiseco big bore pistons (17mm pin) a long time ago and from memory, the deck height was very close.
With the availability of Carillos and Super Rods and Big Bore kits specifically for the SOHC's, I'm a bit more inclined to go that way these days.
Mick

jaguar · « **Reply #26 on:** January 30, 2011, 07:31:11 PM »

would the larger piston pins be worth running the 1100 rods over the 900?

bear · « **Reply #27 on:** January 30, 2011, 08:28:40 PM »

If you use the 1100 rods we run XR250R pistons in our big motor and RC45 pistons in our small motor.
Both use 17mm gudgeon's, the comp. ratio is quiet a bit higher with the XR units but the RC45 units are a lovely tuff light little unit and would be the way to go if you had to run petrol.

Just priced a replacement set at my local Honda dealer and they came in at $165AUD a pot for piston, rings and gudgeon.
Cheaper than most after market units and in my opinion better quality, at leased as far as the RC45's are concerned.

Cheers,
Brian

Terry in Australia · « **Reply #28 on:** January 30, 2011, 11:57:53 PM »

That is good value Brian, were the RC45's 4 valve motors? Do you need to mod the valve pockets to suit the CB750 valve arrangement?

Did you go to Phillip Island on the Australia Day weekend? I saw a few CB750 outfits and wondered if you were competing? Have a good one mate, Cheers, Terry.

bear · « **Reply #29 on:** January 31, 2011, 12:58:30 AM »

G'day Terry,

Yep they have very shallow pockets high on the dome she's a 5 minute job.
We made it down again this year.
Broken clutch carrier,
Broken gear box (jumping out of gear)
Bloody Cap Barren Geese on the track
We ran mid pack when we where running.
All the young blokes had a high old time scuffing my shinny new paint job.
20'000 spectators.
Got to meet Col Stockdale, Dave Martin and Frank Lemstra.
Beers and BBQ every night
Had the time of my life

You'll have to get your ass off the couch one year and come down.

Cheers,
Brian

Sam Green Racing · « **Reply #30 on:** January 31, 2011, 01:09:04 AM »

Quote from: Terry in Australia on January 30, 2011, 11:57:53 PM

That is good value Brian, were the RC45's 4 valve motors? Cheers, Terry.

16 dummy.

Sam.

bear · « **Reply #31 on:** January 31, 2011, 01:20:24 AM »

Hard but fair Sammy

Cheers,
Brian

Sam Green Racing · « **Reply #32 on:** January 31, 2011, 04:16:41 AM »

Quote from: bear on January 31, 2011, 01:20:24 AM

Hard but fair Sammy

Cheers,
Brian

It's a long running hate relationship that we have Brian.

He drinks cold beer and shags sheep.
I prefer HOT WOMEN and beer at room temprature, I've a much better taste in both departments.

Sam.

turboguzzi · « **Reply #33 on:** January 31, 2011, 05:09:42 AM »

question for the drag kings and queens

I vaguely remember reading about a top fuel drag racer built with Gold Wing parts.... or at least the cyl heads.

That would make it another quick sohc four no?

Can anybody can confirm or have more info?

TG

Sam Green Racing · « **Reply #34 on:** January 31, 2011, 01:46:39 PM »

I think it was one of RCs bikes Yossef but not to sure.
There have been LSR bikes that used the wing motors.

Sam.

754 · « **Reply #35 on:** January 31, 2011, 08:00:20 PM »

bATTLESTAR HAD WING HEADS i THINK... RC STARTED BUILDING IT..

scunny · « **Reply #36 on:** February 01, 2011, 09:34:04 AM »

not a good pic but here's the battlestar

turboguzzi · « **Reply #37 on:** February 01, 2011, 10:38:50 AM »

Quote from: 754 on January 31, 2011, 08:00:20 PM

bATTLESTAR HAD WING HEADS i THINK... RC STARTED BUILDING IT..

it indeed looks a bit unfinished..... just like my bikes

what year was that? will have a look at my cycle mag collection. the feature i remember is in there, somewhere

NickO · « **Reply #38 on:** February 01, 2011, 11:28:49 AM »

Quote from: Terry in Australia on January 30, 2011, 11:57:53 PM

........................... were the RC45's 4 valve motors? ...............................

I've got one, I must dig it our from the back of the garage for a spin come May time! The 360 degree crank gives it a lovely growl

I once set-off nearly all the car alarms in the cul-de-sac where I used to live, when running it stationary in the garage without the silencer on

(Sorry for hijacking your thread).

MRieck · « **Reply #39 on:** February 01, 2011, 01:28:25 PM »

Quote from: scunny on February 01, 2011, 09:34:04 AM

not a good pic but here's the battlestar

God....what a contraption!!

I think Russ had more balls than brains sometimes. Definitely balls....just like Elmer RIP.

Sam Green Racing · « **Reply #40 on:** February 01, 2011, 02:04:57 PM »

Hey Mike, you should have seen the Dragway Special, I'll see if I can find a link.

Sam.

It's just before the end of this page. http://www.theaccelerationarchive.co.uk/roger/phillips_03.html

Sam.

Big Jay · « **Reply #41 on:** February 03, 2011, 09:18:02 AM »

Those photos were taken at Fremont Raceway. Right after the last one Russ went off the track on the right side, then back on. That is Clyde Rawlins in the other lane. Clyde won that race, and, to this day, will tell anyone who will listen, about how he beat Russ Collins.

Terry in Australia · « **Reply #42 on:** February 04, 2011, 03:10:06 AM »

Quote from: bear on January 31, 2011, 12:58:30 AM

You'll have to get your ass off the couch one year and come down.

Ha ha, thanks mate, but I was there, I rode my Triumph Rocket III down on the Sunday and had a great day. Yep, it would have been good to catch up, for sure, let me know when you're going again? This was one of my favorite pics from the classic:

The question about the pistons (yeah, I knew they were 4 valve engines) was to elicit some more info about how you modded the valve pockets for the CB750's skewed valve arrangement, care to elaborate mate? Cheers, Terry.

Sammy, I'm glad you said that you "prefer" hot women, because of course in truth, you haven't had "relations" with a woman (hot, cold, or otherwise)since the blitz. I heard that you've been prescribed Viagra, but only to stop you from rolling out of bed? Ha ha, have a good one, you old Pommy baastard!

754 · « **Reply #43 on:** February 04, 2011, 08:44:40 AM »

Jay, I just loved the name of Clydes shop...

MOTOR MANIACS....... think it was in Fresno , if my memory is correct.

Terry, That is one mean ass Scout in that Pic..

I know of some ORIGINAL 4 valve stuff near your end of the wotld but am sworn to secrecy.. got prints of some of it somewhere.. pretty rare stuff..

Sam Green Racing · « **Reply #44 on:** February 04, 2011, 08:47:17 AM »

Terry, what's your problem mate?....it worked didn't it, I don't have lumps on my head anymore, it's great having a good nights sleep.

Sam.

bear · « **Reply #45 on:** February 04, 2011, 06:22:26 PM »

Quote from: Terry in Australia on February 04, 2011, 03:10:06 AM

Quote from: bear on January 31, 2011, 12:58:30 AM

You'll have to get your ass off the couch one year and come down.

Ha ha, thanks mate, but I was there, I rode my Triumph Rocket III down on the Sunday and had a great day. Yep, it would have been good to catch up, for sure, let me know when you're going again? This was one of my favorite pics from the classic:

They had the top off that old girl on Saturday.
According to Tim our motor man I have my head up my ass re the pistons, no valve reliefs to start with.
It's a shame you didn't give me a ring we had a spear pass.
You would have walked right passed us, we where in pit #4.
Hopefully we will pull the motor in our old girl tomorrow.
I intend to take pic's.
Pat and Tim promised I could hold a spanner in some of the photos just to give the impression I know what I'm doing and they actually let me work on the bike.

Cheers,
Brian

Terry in Australia · « **Reply #46 on:** February 04, 2011, 06:55:30 PM »

Sorry mate, I would have had 2 company phones since I last spoke to you, so your number is long gone, send it to me again and hopefully I won't lose it this time. Re: valve reliefs, I'm wondering if the reliefs in the 4 valve pistons pretty much line up with the Honda CB750 arrangement, or is that just wishfull thinking? I might have to buy a set and find out!

Sammy, good to see that the chemical sidestand is working out for you, but at your age, don't sleep too long mate, you don't want to waste what precious little time you've got left!

bear · « **Reply #47 on:** February 04, 2011, 11:00:27 PM »

Quote from: Terry in Australia on February 04, 2011, 06:55:30 PM

Sammy, good to see that the chemical sidestand is working out for you, but at your age, don't sleep too long mate, you don't want to waste what precious little time you've got left!

I didn't think that was a problem Terry.
It was my understanding that Sammy was the Single Over-Head Cam 4 Forums answer to "The Stig" and Bill or MRieck would pull him out of a bottle of formaldehyde when required.
This theory fits well with those poofy leathers.
They weren't white at all it's just that the embalming chemical leached all the color out of them.

Cheers,
Brian

Terry in Australia · « **Reply #48 on:** February 04, 2011, 11:17:20 PM »

They're leathers? Geez, being that Sam's a Pom, I thought that was his skin?

bear · « **Reply #49 on:** February 05, 2011, 01:49:25 AM »

That would also fit my theory.

Cheers,
Brian

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Author Topic: World's quickest SOHC? (Read 21018 times)