Author Topic: biggest carb ever to come on a 949cc California , gonna go racing  (Read 11327 times)

Offline John Ulrich

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Re: biggest carb ever to come on a 949cc California , gonna go racing
« Reply #30 on: October 16, 2015, 08:55:08 AM »
Here's a photo of Earl Cleven's "big valve"

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Re: biggest carb ever to come on a 949cc California , gonna go racing
« Reply #31 on: October 16, 2015, 08:57:17 AM »
Mike,
My brother in law does the El Mirage timing on his antique FZR1000, but Bill Ross is the expert on the El Mirage and also the riding the salt on his LSR Guzzi, I don't know if he posts here, but I suspect you have his info.  Best wishes with your project, and let me know when you will be in So Cal, I would like to hook up if possible
Cheers,

Offline guzzista

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Offline Travlr

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Re: biggest carb ever to come on a 949cc California , gonna go racing
« Reply #33 on: October 16, 2015, 03:29:56 PM »
2 quick questions:

1. Is there any way to identify a "big valve" Cal 3 other than the carb size as these may have been changed?

2. Was 1991 the only year?

Thanks!

Mike
1984 LeMans 3 Cafe Racer
1977 BMW R100S

Offline rocker59

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Re: biggest carb ever to come on a 949cc California , gonna go racing
« Reply #34 on: October 16, 2015, 03:32:08 PM »
2 quick questions:

1. Is there any way to identify a "big valve" Cal 3 other than the carb size as these may have been changed?

2. Was 1991 the only year?

Thanks!

Mike

1991 was the only year in the USA.  If you have a 1991 California III, it is a "big valve".

Michael T.
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Offline rocker59

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Re: biggest carb ever to come on a 949cc California , gonna go racing
« Reply #35 on: October 16, 2015, 03:43:12 PM »
Just some more thoughts on the exhaust and compliance with the LSR rulebook.

In 1991, there were 17 LeMans 1000s brought over.  There were two different exhausts. 

There is no documentation or explanation for this.

example 1:  The "standard" LeMans 1000 exhaust.


example 2:  At least one 1991 bike showed up with this exhaust.  The mufflers were also seen on some 1992/1993 bikes.


I really have to believe that if you used the "standard" Moto Guzzi - La Franconi revese cone mufflers common to the California III and California 1100, that the bike would pass.  The mufflers are stamped "Moto Guzzi" and have OEM part numbers.



The "turned up" megaphones are kind of cool, but I'd think finding a set would be tough

« Last Edit: October 16, 2015, 03:48:35 PM by rocker59 »
Michael T.
Aux Arcs de Akansea
2017 Triumph T100 Bonneville
"Do what you can, with what you have, where you are." - Theodore Roosevelt

Offline Chuck in Indiana

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Re: biggest carb ever to come on a 949cc California , gonna go racing
« Reply #36 on: October 16, 2015, 04:06:54 PM »
Just some more thoughts on the exhaust and compliance with the LSR rulebook.

In 1991, there were 17 LeMans 1000s brought over.  There were two different exhausts. 

There is no documentation or explanation for this.

example 1:  The "standard" LeMans 1000 exhaust.


example 2:  At least one 1991 bike showed up with this exhaust.  The mufflers were also seen on some 1992/1993 bikes.


I really have to believe that if you used the "standard" Moto Guzzi - La Franconi revese cone mufflers common to the California III and California 1100, that the bike would pass.  The mufflers are stamped "Moto Guzzi" and have OEM part numbers.



The "turned up" megaphones are kind of cool, but I'd think finding a set would be tough



the turned up megs on the last picture are what I've been finding with what little research I've done. But.. it's a Guzzi for heavens sake. Luigi wasn't above using whatever was on the shelf at the time of assembly.
Chuck in (Elwood) Indiana/sometimes SoCal
 
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Offline guzzibob

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Re: Thinking Land Speed Record
« Reply #37 on: October 16, 2015, 09:52:11 PM »
I hope to move the southern california next year

Any idea where specifically?
Bob Dickman
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Rough Edge racing

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Re: biggest carb ever to come on a 949cc California , gonna go racing
« Reply #38 on: October 17, 2015, 06:20:36 AM »
El Mirage is speed only, time is not measured AFAIK. Yea, forgot about stock exhaust exit. So best I could hope for is drilling internal baffle plates. Still need to find out if the small lot of big valve cali III's had the regular cali III exhaust or one resembling the Lemans IV.

  All LSR racing is about the speed not the elapsed time. If you're serious the engine will need internal modification to increase power and then spend hours on the dyno or track to tune the best power with a restricted exhaust...
 You neatly cut out the the muffler end cap and remove or modify the baffles then weld it back together...
 The exact quote from the rule book on mufflers for production class
 
Quote
the exhaust system, looking at the end (down the center line) shall be unmodified,i.e. the exit diameter of the cannister (muffler) cannot be enlarged.this comparison will be made with the bike assembled as ready to run. Any performance modifications shall be out of sight.
 
« Last Edit: October 17, 2015, 06:21:03 AM by Rough Edge racing »

Offline mtiberio

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Re: biggest carb ever to come on a 949cc California , gonna go racing
« Reply #39 on: October 17, 2015, 09:41:25 AM »
So does cutting the muffler open to gut the interior, make the modifications not "out of sight"
Land Speed Records w/Guzzzi:
SCTA M-PG 1000 141.6 MPH
LTA M-PF 1000 137.3 MPH
ECTA M-PG 1000 118.6 MPH
http://gjm.site90.com/mtiberio

Offline mtiberio

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Re: biggest carb ever to come on a 949cc California , gonna go racing
« Reply #40 on: October 17, 2015, 09:42:59 AM »
I plan to move to the Alpine area, and commute the 35 miles to downtown San Diego to my office...
Land Speed Records w/Guzzzi:
SCTA M-PG 1000 141.6 MPH
LTA M-PF 1000 137.3 MPH
ECTA M-PG 1000 118.6 MPH
http://gjm.site90.com/mtiberio

Rough Edge racing

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Re: biggest carb ever to come on a 949cc California , gonna go racing
« Reply #41 on: October 17, 2015, 10:51:57 AM »
So does cutting the muffler open to gut the interior, make the modifications not "out of sight"

 Is a weld a performance modification? ...The main intent, in my opinion,is not to enlarge the muffler exit opening. The SCTA website has names of the bike inspectors. They will answer tech questions by email or phone..Email is better because you can print it and it's proof in case of a inspection issue. Keep in mind ,for the most part, the inspectors do not nit pick on non safety items. I've been busted for "pushing" the rules and the inspectors just laugh and tell me to correct it.. It you want to win in LSR you need to fully take advantage of  what is not mentioned in the rules....It's not cheating.....

Offline handyandy

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Re: biggest carb ever to come on a 949cc California , gonna go racing
« Reply #42 on: October 18, 2015, 01:46:57 PM »
Mike, My Cal III came with LM IV mufflers. Don't know how to document since Guzzi snuck them into the US. As I said there was 1 container load of them.

 

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