Author Topic: Classic Bonneville Racer (Read 116340 times)

Old Scrambler · « **Reply #175 on:** July 24, 2015, 06:11:29 PM »

Less than 5-weeks to go..................new mega is ready............stiffer shock-springs installed...........now working on the airbox and mounting the new front fender.........then a little paint.

scottly · « **Reply #176 on:** July 24, 2015, 06:34:33 PM »

Hey Dennis, the next time you put the bike on a dyno, make sure they include the torque curve on the print-out.

Old Scrambler · « **Reply #177 on:** July 25, 2015, 07:43:22 AM »

Scotty, agreed..............and I lowered the air-pressure in the rear tire to get a more accurate reading

We will do another dyno-run after the airbox is completed..........with options to run with or without ram-air and different filter choices. After we get the air-ducts to work, we have to make a new gas-tank with a minimum capacity of 5-liters.

johno · « **Reply #178 on:** July 26, 2015, 03:53:03 AM »

SKITCHEM DENNIS

SHOW NO MERCY TAKE NO PRISONERS..... oh and dont come back without the record you old salty

Jerry Rxman Griffin aka MuthaF'er · « **Reply #179 on:** July 26, 2015, 10:11:19 AM »

Johno, ask him how many MPH he plans on smokin the record by....

Old Scrambler · « **Reply #180 on:** July 26, 2015, 11:32:26 AM »

SPEED...................MORE SPEED

The current record is 125 or 130-mph. From the beginning of this quest, I have always thought that getting to the mid-150s was the challenge due to the altitude and the somewhat soft track conditions. Several 762cc motors (considered legal for 750cc racing classes) have registered those speeds at road-race courses somewhat close to sea-level. IF..........IF this motor performs as planned, and IF the ram-air is effective, my personal goal is 161-mph

The practice dyno-run indicated 158-mph

Should all things work as planned, I have multiple sprocket sizes to test the limits of what the motor will do. Because of the 2400-rpm drop from 4th to 5th-gear, I have a larger counter-shaft sprocket ready to match with the smallest rear sprocket and try a run in 4th...........but only if needed.

A lot of very smart people have calculated how much horsepower is needed to get a bike up to a certain speed. Recent speeds by a few competitors are exceeding those calculated limits due to reduced drag and improved traction. A contributing ram-air system is measured at an extra 5 or more HP at speeds of 150-mph or higher. One of those current record holders has added more than 40-lbs. of lead to his swing-arm.............so his total weight is about equal to mine. Maybe I don't need to lose any more weight

Jerry Rxman Griffin aka MuthaF'er · « **Reply #181 on:** July 26, 2015, 02:49:45 PM »

Quote from: Old Scrambler on July 26, 2015, 11:32:26 AM

SPEED...................MORE SPEED

The current record is 125 or 130-mph. From the beginning of this quest, I have always thought that getting to the mid-150s was the challenge due to the altitude and the somewhat soft track conditions. Several 762cc motors (considered legal for 750cc racing classes) have registered those speeds at road-race courses somewhat close to sea-level. IF..........IF this motor performs as planned, and IF the ram-air is effective, my personal goal is 161-mph

The practice dyno-run indicated 158-mph Should all things work as planned, I have multiple sprocket sizes to test the limits of what the motor will do. Because of the 2400-rpm drop from 4th to 5th-gear, I have a larger counter-shaft sprocket ready to match with the smallest rear sprocket and try a run in 4th...........but only if needed.

A lot of very smart people have calculated how much horsepower is needed to get a bike up to a certain speed. Recent speeds by a few competitors are exceeding those calculated limits due to reduced drag and improved traction. A contributing ram-air system is measured at an extra 5 or more HP at speeds of 150-mph or higher. One of those current record holders has added more than 40-lbs. of lead to his swing-arm.............so his total weight is about equal to mine. Maybe I don't need to lose any more weight

Glad you brought it up

LMAO Anything you lose will be a big help too. I'll bring a gallon jug of colonoscopy prep for you LOL

Skip beer, add vodka or gin to it. Party in the restroom

Old Scrambler · « **Reply #182 on:** July 26, 2015, 03:46:55 PM »

Jerry..............the authentic Mexican food seems to work well enough

...............and, I'm already a few pounds lighter than last year................I'm glad I added the suspenders to my leather pants

754 · « **Reply #183 on:** July 26, 2015, 06:26:40 PM »

Citromag party...uuuuggghhhh..

joesmotos · « **Reply #184 on:** July 26, 2015, 08:53:25 PM »

https://www.usmileracing.com/category/us-mile-news/

They have this right after Bonneville...same folks that do the Texas mile.. i just got a call a couple days ago,its at the Front Range Airport in Watkins,Colorado..525$ for Fri,Sat,Sun or 425$ for sat/sun...200 entries open...im spending all my cash at Bonneville but might drive over to watch this when i return..unless someone wants to pay my entry fees ha ha
..
see you guys on the salt in a month(or so)

johno · « **Reply #185 on:** July 27, 2015, 02:57:43 AM »

Yo Jo,
are you running the 500 turbo again this year ? last I heard you were thinking of changing bikes ? No build thread so I'm hanging to find out.
cheers johno

joesmotos · « **Reply #186 on:** July 27, 2015, 08:08:46 PM »

No turbo,its sitting on my other bike lift taunting me,laughing at me for never finishing it..
I did do some other stuff to the bike but dont want to mess up this thread with details..
But im goin to Bonneville,i actually entered a class this year..Modified Partial Streamling,500 Classic Gas

So im like a level down from Old Scrambler..
I have seen his bike up close,its damn nice..i have feelin its gonna be a good outing.

754 · « **Reply #187 on:** July 27, 2015, 08:14:18 PM »

All the sohc group should get together. There, I will try to make it and the B,ville GP..anyone going to that?

scottly · « **Reply #188 on:** July 27, 2015, 08:29:10 PM »

What bike, Joe?

joesmotos · « **Reply #189 on:** July 27, 2015, 09:22:13 PM »

my cb360 459cc..

scottly · « **Reply #190 on:** July 27, 2015, 09:31:29 PM »

More pics and details, please.

johno · « **Reply #191 on:** July 28, 2015, 03:30:06 AM »

Hope your OK with the Bonny gossip session Dennis

Jo whats with the Ozzy flag, was that a swap from the crazy ozzy guy who aquired your battery

johno

Old Scrambler · « **Reply #192 on:** July 28, 2015, 07:50:50 AM »

Its all good conversation when Bonneville is the topic

Joe......nice fairing............I considered a fairing for the CBR..........but first it has to prove itself worthy

We are fitting the new front fender today...........pretty ugly right now...........pics later.

Jerry Rxman Griffin aka MuthaF'er · « **Reply #193 on:** July 28, 2015, 09:30:39 AM »

Quote from: 754 on July 27, 2015, 08:14:18 PM

All the sohc group should get together. There, I will try to make it and the B,ville GP..anyone going to that?

Not this year. It's on the way home but I gotta get back for a work gig starting on TH.

joesmotos · « **Reply #194 on:** July 28, 2015, 08:55:16 PM »

ok cool i just felt sorta weird talkin bout my lil ragamuffin in your thread Dennis..

the fairing i bought is Airtech,its the *Turnip Eater*..Harley KR750 short circuit..the bike is sitting up high at the moment,i wanted to see how much suspension travel i had,you can see the zip ties on the fork tubes,i was pulling it down with ratchet straps,and i can safely get away with lowering the front end..the front wheel is a GS500 Suzuki 17 inch,and the fender is from a old Honda Hurricane 600,the first years..as you can see she is a multicolored explosion of cobbiness at the moment haha.

I wont be winning any bike show awards with this thing...but its structurally sound,i know its stable,and i am not worried about being Mr.Style at Bonneville..hopefully i will have time to shoot some paint on it,if not,oh well.

I had a new cam made,and my exhaust pipe stuff should be here in a couple days(im making a slightly larger tube header)..
THis is my 5th trip to Bonneville,every year is try to squeeze a tad more out of it,this will probably be my last time with this set up,normally aspirated..that little turbo needs to go on it but i just wanted to see what i could make it do with no turbo first..

Hopefully i can at least lay down a semi respectable run considering what it is,it went 118 last year..

mounting a one piece fairing is a pain in the ass,it does not come off easily.the windshield didnt fit worth a poop,i thought i was doing something wrong but it didnt fit the contour of the fairing well at all,had to take a sander to it..looks good now..

the Aussie flag sticker came from my Aussie buddies,i have another from Maramusu racing(some Japanese Harley guys)...i pull up next to them in line and point at it,they just laugh and give me thumbs up..

anyway heres a couple more pics of ole Ragamuffin,hell i might get someone to paint a raggedy man on it if i get the urge lol

scottly · « **Reply #195 on:** July 28, 2015, 09:08:00 PM »

Don't waste time on paint, it will be ugly after a few runs down the salt anyway.

Have you seen my thread on exhaust tuning?

joesmotos · « **Reply #196 on:** July 28, 2015, 09:30:38 PM »

i hear ya,the first time i took it out it was all shiny and spiffy,the ravages of Bonneville take their toll..
i saw the exhaust thread,gonna go re-read it...
regardless,should be an interesting trip..

johno · « **Reply #197 on:** July 29, 2015, 03:59:15 AM »

White fairing Joe ?
you might get lost out on the lake

no one will find you.
What do you reckon Dennis ? I think he should paint it a nice colour.................say something MELLOW and YELLOW

What about a big tongue on the front of the fairing like Rolling Stones concert tour logo., eat salt for breakfast baby,
Go on Joe, were all getting old quickly ....feel young and do something crazy man , cut loose and live for the moment..

We want a radical paint job

joesmotos · « **Reply #198 on:** July 29, 2015, 08:56:34 AM »

they sent the fairing that color,gel coat ya know..at the rate im progressing,paint is the last thing on my mind,haha

Old Scrambler · « **Reply #199 on:** July 29, 2015, 07:22:59 PM »

The fairing alone should get you another 5 to 10 mph.................my paint usually comes from a rattle-can..........and drys on the way

A new visitor is expected at Bonneville..............the neighbor-kid that I sold my 1969 sandcast CB750 to in 1971.........He now lives in Idaho and plans to look me up in Wendover

...........No, he sold the K0 many years ago and left it in LA.............with extended forks and a 4-1 header.

News:

Author Topic: Classic Bonneville Racer (Read 116340 times)