Author Topic: Salt Racer CB 750 OZ style (Read 169774 times)

sohc boy · « **Reply #300 on:** July 27, 2013, 01:47:59 AM »

AHHH ...! johno just gave a F g/box to a mate .. yes the f gears are changable with early shafts , can juggle secondry reduction gears an out put shaft an stuff .( have a fourth here ) oh an put a BIG tacho on like this (welcome to this ),my eyes aren't as good as they used to be , something to bury my wide open,bloodshot eyes n head into , dont need to see where i'm going , think i should look for a 15,000 tach ?

johno · « **Reply #301 on:** July 27, 2013, 05:02:35 PM »

Thanks for the gear box tip Pete, Ill grab one off ebay and have a play.
I was thinking if you had no tacho you would enjoy the scenery more

johno

johno · « **Reply #302 on:** July 27, 2013, 05:32:31 PM »

a 15,000 rpm tach may be on the cards, there has been a radical change of plans in the engine department
WHY ?

Couple of weeks ago I was asking Mike R for some advice and help, his passion for the old SOHC motors is unimaginable. Mike has access to a dedicated High RPM salt cam, which then needs lots of air, Compression, and to get the combo to work lots of RPM. He has made me feel the project is a bit special as he is committed to supplying whats required and jumping in boots and all. Mike sent me some pics of a few items that fair dinkum blew me away.
We are thrashing around getting organised now but when things start to come together I'll keep everyone updated, I hope Mike takes a few happy snaps of his journey so he can share his passion.

If I thought for one minute we could get 150mph on the salt with a naked bike I would be more than happy to run the engine to 15,000 RPM or BANG and still be happy for trying

Fair dinkum I want that waterbottles ars#

johno

Old Scrambler · « **Reply #303 on:** July 27, 2013, 06:50:40 PM »

Sam........Good Reminder............K7 cases in the A-frame with F2 head, swingarm and tranny for starters but things can change.

Johno..........I will be running in the new CLASSIC class at 750cc. I have a goal of 157 mph naked and 183 PS. I'll be getting into the serious build stage about the time you make your runs............I don't anticipate more than 11,500 rpms to be the peak power range for my motor.........but Mike may have to come up with another cam if it works for you.

johno · « **Reply #304 on:** July 27, 2013, 10:50:33 PM »

These are my shed or transport wheels, two standard fronts but one front one rear, just for moving the bike and looking at, dont want no flat spots on the good rubber, primed them today for some colour, cant make my mind up, all yellow, or yellow hub and rims with black spokes, yellow rims black hub and spokes ?

Den, dont worry I'm thinking similiar revs to you, BUT after say three runs, things are getting sorted and getting close to the record I am more than happy to make the ultimate financial sacrifice to get the big 150 number. I want it bad !

Den With regard to next months Bonny meet I wish you well.......am envious mate. I guess your pretty organised given your a bit of an old timer at it now. Make sure you ride safe mate and save yourself for next year and the big 150 on an old jigger. When my time comes later this year I will keep you well informed on everything I do on the chance it may help you with your new baby.

I done so much planning it drove me nuts, so now I just do stuff and spend as required,

Cheers Johno

johno · « **Reply #305 on:** August 16, 2013, 12:48:39 AM »

RE PRO STOCK bike.
I dont know where Pete gets these pics but they turn me on mate keep em coming.,
On a couple of other threads long time ago I mentioned an Adelaide guy named mark Skehan who was a RC distributer , keen drag racer and eventually purchased the pro 1 bike from RC.
This was his practice bike.

johno · « **Reply #306 on:** August 16, 2013, 12:53:24 AM »

Call that a PRO Bike ....this is a pro bike. the one and only number one
This is the bike Mark went to the states and bought at the last meet of the year in the pits.
Bloody sounded nice mate, goose bump stuff.

Love the tyres rims, love the front forks, love the swing arm, love the short top end velocity stacks, most of all love the number !
Enjoy , cheers Johno
thanks Pete. I feel 41 years younger.

Retro Rocket · « **Reply #307 on:** August 16, 2013, 02:44:40 PM »

Great pics Johno, beautiful bikes...

sohc boy · « **Reply #308 on:** August 16, 2013, 02:54:38 PM »

... thought you would like those johno ,Damn nice allright , i'm told he still owns them ,the silver n black one was in his office on display

johno · « **Reply #309 on:** August 17, 2013, 05:24:49 AM »

Got a few more goodies today from cycle x

I post a few pics

johno · « **Reply #310 on:** August 17, 2013, 05:28:25 AM »

using the cycle x left hand drive plate to make the motor skinny

johno · « **Reply #311 on:** August 17, 2013, 05:31:37 AM »

couple of oil adaptors and heavy duty clutch springs, I allready have a set of Barnett plates, and a tach cable plug.

johno · « **Reply #312 on:** August 17, 2013, 05:38:02 AM »

Got one of these new fangled cycle x ignitions systems

I have to swap back the coils as they sent me the dual coils rather than the four individual coils I want.
all cool though, alls well that ends well.

read the instructions as I brought the programmable version with laptop lead, now all I need to do is get a degree in electronics

johno

johno · « **Reply #313 on:** August 17, 2013, 05:41:58 AM »

it was like an early xmas today

johno · « **Reply #314 on:** August 17, 2013, 05:45:18 AM »

Have to a bit more cutting and shutting now that I primed it all up nice, ah well thats racing.
johno

johno · « **Reply #315 on:** August 17, 2013, 05:49:35 AM »

Thought I better get some of these fancy titanium rocker arm locknuts, very light

cheers johno

bear · « **Reply #316 on:** August 27, 2013, 08:56:48 PM »

Quote from: Old Scrambler on July 25, 2013, 07:55:19 AM

A SERIOUS build effort.................Father Mike???

I like the options you are covering. I am taking a little different approach..........starting with a frame from an automatic to make head or motor removal a lot easier.............would like to run 21" wheels but likely to settle on the narrowest set of 19" on 1.85 rims because of required speed-ratings. I'll use a very light drum-brake on the rear

But first I have to complete my current effort with the Triumph Cub..........we leave for Bonneville in 4 weeks and still have a lot of work to accomplish

Congratulations on your new record Dennis, Well done mate.

Cheers,
Brian

Jerry Rxman Griffin aka MuthaF'er · « **Reply #317 on:** August 27, 2013, 09:07:31 PM »

Saw 3 750's on the Bonneville salt this week. 125, 120, and 90.

Then there is Old Scrambler's NEW RECORD.........

Sam Green Racing · « **Reply #318 on:** August 28, 2013, 02:36:38 AM »

Thanks for the up date Jerry, give our regards to Dennis.

Also Jerry, can you ask Dennis for a link to his Facebook page, I seem to have lost him.

Sam.

johno · « **Reply #319 on:** August 28, 2013, 06:00:59 AM »

well done Dennis,

I,m sure you'lll get to read the messages from well wishers, its great mate, you not only talk the talk but walk the walk as well. Not something thats easy to do but you deserve the record mate you have been putting in the hard yards.

Right, from now on Den its time for you to start a thread in the hipo for your next project

I need the tips

...................hurry up

I have heard some goss back from the ozzy brigade over there at Bonny BUBS
Some of the bikes went on a shipping journey to a few more countries than they were supposed to.........late.
The BUB organisers assigned a pit area for the ozzie boys and girls and everyone said they were really helpfull
Evelyn Scholz on her 1000 A/BG set new record 192.9
Shane Gaghan set a new FIM and AMA record on his suzuki 750 turbo @ 750 M/BG
On Tuesday one of the ozzy blokes got a mean speed wobble on his Jawa and got spat off and spent the night at SLC hospital with concussion, is OK now just shoulder ligaments.

Gee Jerry those Honda 750 numbers you mentioned are worrying for me. 125mph
The current record holder in my modified 750 class is 149.3 mph and that was set by a 750 waterbottle,
I seen his dyno sheets at 115 HP at rear wheel........bugger ....I'm dreaming of 90 plus........I'm thinking I will need someone real skinny skinny jocky....the suzy man had special cast cylinders but I will have an old poxy head from Mike on mine so cant wait to see what happens. I personally am hoping for 140mph any more will be a tad optimistic I think. Based on Dennnis advice I have been working hard on the frontal area and narrowing the rear. Just this week I have started on two exhaust systems, 4 to 4 and 4 to 1 trying to get them up and over the engine rather than under but the rear of the bike is proving a challenge, I might have to cut and shut the frame a lot more to try and get them in tight enough so we can sit on them

hot stuff baby

Any way rambling on, I'll save it for the pics. johno

Sam Green Racing · « **Reply #320 on:** August 28, 2013, 06:16:27 AM »

Quote from: Sam Green Racing on August 28, 2013, 02:36:38 AM

Thanks for the up date Jerry, give our regards to Dennis.

Also Jerry, can you ask Dennis for a link to his Facebook page, I seem to have lost him.

Sam.

Found him.

cbornotcb · « **Reply #321 on:** August 28, 2013, 06:49:49 AM »

You can do it "Johnny hot nuts"

"It's how you open the door, it's how you close it once your through"

Tiny

Old Scrambler · « **Reply #322 on:** September 01, 2013, 05:52:00 PM »

Johno.........Bear..........Sam..........and others...........Thanks for following my 'going fast - slowly' effort on the Triumph Cub. We now have the fastest AMA 250cc Push-Rod bike but I am well aware of others in SCTA with faster speeds. We will be back next year with a few improvements. This year's effort got a bit tight at end of prep ............we blew the head gasket on the 3rd heat cycle. Made new thinner gaskets with smaller stud holes and increased the thickness of the base-plate to compensate on the day before we left for Bonneville. We tuned on the practice track and made our best attempt on the first run.

I will have more pics in a few days to put on the facebook: saltteamadvancedlandspeed page. Special thanks to Zak (Grasscutter) and Jerry (Rxman) for helping in the pits and taking all of the (hoped-for) pics.

Regarding sohc CB750s..............one is a board member from Ontario. He ran a nearly stock and street-legal bike showing a cam, header, and pods..........and ran in the low 120s. The other was from Japan with a few more goodies and updates to the wheels and suspension............but was running in the low 120s at last visit in the pre-stage lines.

Johno...............Yes, its time for me to start my own thread..............just as soon as a I actually begin the build.

754 · « **Reply #323 on:** September 01, 2013, 07:38:48 PM »

. Go Dennis..GO...
I was there with him when he got....ummm..Inspired........

johno · « **Reply #324 on:** September 03, 2013, 04:46:13 AM »

just upgrading a couple of pics that Mike has sent with his updates on our LSR head
1 of 2
this shot is of the bored out inlet seats for the oversize valves to Mikes standard .9 diam of valve and where Mike has milled the fin area below the inlet ports to access the bottom part of the inlet port

cheers Johno

News:

Author Topic: Salt Racer CB 750 OZ style (Read 169774 times)