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Author Topic: New Vintage Project, 250cc M-VG, Reconstruction of a 1933 French Jonghi 350  (Read 38121 times)

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Offline thefrenchowl

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Yes, rule 7.E.5 ""ahead and above rear axle centerline""

Still as is in the 2019 rule book...

Centerline is a bit vague, horizontal? vertical? Mine's above the horizontal CL and ahead would mean in front of the bike???!!!

When I raced my Harley in 2011 and 2013, the numbers were on the seat rear hump, well rearward of CT!!!!!!... Nope was said about it...



I'm sending a mail now to the tech guys... (by the way, they already seen photos of the bike and they did not comment on that point...)

Thanks for pointing out potential pit falls!!!!! Well apreciated!!!!!

Patrick
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...What exactly are we trying to do here?...

Offline Seldom Seen Slim

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I don't see any issues.  I believe the spirit of the rule is to prevent number plates from being used as aero devices.  Your numbers are on the tail section which is there anyway.

I don't see a foul. 8-)
Jon E. Wennerberg
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Offline salt27

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I don't see any issues.  I believe the spirit of the rule is to prevent number plates from being used as aero devices.  Your numbers are on the tail section which is there anyway.

I don't see a foul. 8-)

Wrong bike Jon, go back a page.

  Don
« Last Edit: July 10, 2019, 08:57:42 PM by salt27 »

Offline Bookfla

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With the number plate having a radius instead of being flat why wouldn't it be considered as an aero improvement?

Offline Seldom Seen Slim

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Thanks, Don  I was kinda sleepy/lazy and didn't check.  Now that I have - indeed, a note to M/C Tech was the right thing to do.

It usually is wise to check with them on most any questionable question. 
Jon E. Wennerberg
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 Skandia, Michigan
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Offline salt27

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With the number plate having a radius instead of being flat why wouldn't it be considered as an aero improvement?

7.B.1 addresses size and shape of the number plate.

It looks ok to me but I'm not an inspector.

Also, the only reason I brought anything up is so there aren't any hang ups during inspection.

Let us know the out come Patrick, this could affect a few of us.

Thanks, Don


Offline Seldom Seen Slim

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Hey Sparky!  Would you care to discuss the difficulties of getting a number plate that'll keep the inspectors happy?

I seem to remember when you and Russ (?) were pitted next to us ten or fifteen years ago and you were dealing with the number plate/aero device hassle. :lol:
Jon E. Wennerberg
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Offline thefrenchowl

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Haven't written yet, will do today!!!

Instead, two packets were waiting for me when I came back from work today...

One from Frederic with a spare Bosch FF1A inductor and points:



And one from Lionel with the newly re-manufactured gearbox of his own Jonghi TJ 4:



A few spare parts and I do hope I won't have to use them in anger!!!

Thanks for your help and trust,

I'll pop at work tomorrow (it's my day off...) to put them on the crate and close it ready for collection...

So long, Patrick
Flat Head Forever

...What exactly are we trying to do here?...

Offline ProjectROTM

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Re: New Vintage Project, 250cc M-VG, Reconstruction of a 1933 French Jonghi 350
« Reply #248 on: September 09, 2019, 06:52:47 AM »
How did you get on at Bonneville Patrick? I am keen to find out.

Offline thefrenchowl

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Re: New Vintage Project, 250cc M-VG, Reconstruction of a 1933 French Jonghi 350
« Reply #249 on: September 13, 2019, 02:40:29 AM »
Hi, Velo Mac...

You've been way too quiet as well!!!

Well, as I flew out Thursday the 8th to Las Vegas, it rained on the Flats.... Needed time to dry... So no races until Tuesday...
Small course only 1 mile 1/2 long, so no way to do qualifier runs there and about 6 to 8 hours wait on the 5 miles only long/short combined course...
Swiftly got called the ""schlong""" course...

Don Campo, ""Race Engineer"" on this forum, did a 5000 mile round trip from his home in Texas to help me with the van and tuning duties, my eternal thanks to him for his tools, efforts and council, well appreciated...

Bike did not work very well.... Either fuel or ignition related... 1st run 43 mph... Mods... 2nd run 10% better, 48mph, then 2 aborted runs... After moult mods and tries, we packed up on Thursday the 15th...

Don and meself next to the temporary sign at the Flats entry:









So we had plenty of socialising time... Don knew guys from the Team Vesco, so we hugged to them and we were indeed treated like equal... Their driver had a 503mph exit speed on the wheel driven Turbinator last October, but like ourselves, were plagued with problems, mostly electronics... We were invited at Rick Vesco's wife's birthday grand dinner ("Jinx"', I understand she was born on a Friday the 13th...) and the whole team was happy to school and tell us a thing or two about how to run such a beast...



The bike just arrived back at my place of work yesterday, I'll pop in today to dismantle the crate to reassemble and clean the bike...

Thanks to all here who have offered help and advice, I'll do a "post mortem" later this year and see what the next step will be!!!

Your friend Patrick...
« Last Edit: September 13, 2019, 02:47:58 AM by thefrenchowl »
Flat Head Forever

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Offline salt27

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Re: New Vintage Project, 250cc M-VG, Reconstruction of a 1933 French Jonghi 350
« Reply #250 on: September 13, 2019, 12:19:07 PM »
Patrick, I see the number plates were removed.

Did you get a ruling on them?

  Don

Offline thefrenchowl

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Re: New Vintage Project, 250cc M-VG, Reconstruction of a 1933 French Jonghi 350
« Reply #251 on: September 13, 2019, 06:41:11 PM »
Yep, They said all of the number plate should be before located in front of rear axle vertical line, not just 1/2 of it!!!

I just put them on cause they wanted them, so I gave one to Don and will nail mine in my ""Speed God's Offerings"" display in my garage...

Apart from that, no other comments and the bike sailed through tech inspection... They all loved it... I also understand it was quite a topic at certain tables during the 200mph club banquet.... where at last, I had a chance to meet and chat a bit with Scott Guthrie...

Here he is in company of a rather classy lady...



Patrick
Flat Head Forever

...What exactly are we trying to do here?...

Offline salt27

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Re: New Vintage Project, 250cc M-VG, Reconstruction of a 1933 French Jonghi 350
« Reply #252 on: September 13, 2019, 08:50:01 PM »
Thank you, Patrick.
You may have saved a few of us from tech issues.

  Don

Offline thefrenchowl

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Re: New Vintage Project, 250cc M-VG, Reconstruction of a 1933 French Jonghi 350
« Reply #253 on: September 14, 2019, 03:53:55 AM »
No probs, Don, we're here to help each other!!!

Crate arrived at work Thursday... Poped in yesterday to dismantle it and put the recalcitrant beast together... 





And after a quick wash to get rid of most of the salt, sticky stuff...



So long,

Patrick
Flat Head Forever

...What exactly are we trying to do here?...

Offline RaceEngineer

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Re: New Vintage Project, 250cc M-VG, Reconstruction of a 1933 French Jonghi 350
« Reply #254 on: September 14, 2019, 04:45:24 AM »
Patrick,

Hope this finds you well.   Good to see your "mistress" back in one piece.   Get that magneto remagnetized and refreshed and some smaller carb jets and come back for another run at the record.  A high compression ratio piston would also help given the fuels available from VP.  SW19 was great fun in any case.
 
I believe I have found a proper piston for my vintage Italian 2 stroke (1952 Moto Parilla 125 2T).  Plan to run it in 2020 along with the blown fuel 100 cc Suzuki.  Also beginning the Saab build (chassis and drive axle).

Regards,

Don