[F500] NEW ROTAX 494 ENGINES NO LONGER AVAILABLE

[Brannon, Greg]

Due to the reliability of the Rotax, and the help that Tony has
provided, I for one would not be in favor of looking at other
alternatives at this point.

-----Original Message-----
From: Dave Riddle [mailto:dave at microworks.net] 
Sent: Monday, July 22, 2002 12:20 PM
To: f500 at www.f500.org
Subject: Re: [F500] NEW ROTAX 494 ENGINES NO LONGER AVAILABLE


If the 494 is going the way of the Chaparral and the Kawi and if the
door 
has to be opened to look at the 493 should we petition to have any other

motors looked at?  Maybe some that are less expensive to repair than the
Rotax.


At 04:41 PM 7/21/2002 -0400, you wrote:
>The Tony Murphy Company, importer of the Rotax engine used in Formula 
>500, announced today that new Type 494 engines are no longer available.

>When the Type 494 engine was discontnued in Ski-doo snowmobiles in 
>1988, Rotax continued to produce limited numbers, approximately 20 per 
>year, exclusively for use in the SCCA Formula 500 class. Rotax has now 
>completely ceased production of the Type 494. Replacement parts will 
>continue to be available.
>
>The mass produced Type 493 that is currently used in Ski-doo 
>snowmobiles will now be the only 500cc engine available from Rotax. The

>bore and stroke is the same as the Type 494, and the performance on the

>dynamometer is almost identical. The carburetors and clutch are 
>interchangeable. The engine mount bolt pattern is the same. In 
>addition, the Type 493 is available with an electronic reverse, a 
>feature that is both a convenience and a safety feature.
>
>In the coming months, the Type 493 will be fitted to a Formula 500 
>chassis to determine on-track performance differences, if any. The 
>results will then be submitted to the SCCA with a request that the Type

>493 be approved for future use in the Formula 500 class.
>
>
>Tony Murphy
>_______________________________________________
>F500 mailing list - F500 at www.f500.org
>To unsubscribe or change options please visit: 
>http://www.f500.org/mailman/listinfo/f500
>*** Please, DO NOT send unsubscribe requests to the mailing list! ***

|-----------------------------------------------------------------------
|
| David W. Riddle        | www.microworks.net   | www.poolwizard.com
|
| (O) 480-610-8234       | www.riddlefamily.org |
|
| (F) 480-649-9231       |                      |
|
|====================== Riddle Formula Racing
==========================|
| 1958 TR-3A TS34575L    | T-83 Red Devil  | 1988 Porsche 944
|
| E Production           | Formula 500     | ES Solo2
|
| www.vararacing.com     | www.f500.org    | www.scca.org/amateur/solo2
|
| www.azsportsracing.org | www.scca.org    |
|
|                        | www.nasa-az.com |
|
|-----------------------------------------------------------------------
|

_______________________________________________
F500 mailing list - F500 at www.f500.org
To unsubscribe or change options please visit:
http://www.f500.org/mailman/listinfo/f500
*** Please, DO NOT send unsubscribe requests to the mailing list! ***