Webra 145 with Greve Pipe

[Mike Mueller]

 How do you determine where the baffle is on the Greves pipe? Mike

-----Original Message-----
From: Keith Black [mailto:tkeithb at attbi.com]
Sent: Tuesday, June 17, 2003 11:39 PM
To: discussion at nsrca.org
Subject: Re: Webra 145 with Greve Pipe


As long as we're talking about the Webra 1.45, RPMs and pipe length, what
are some experiences with the Webra 1.45 and the Greve pipe. Piedmont's web
site it recommends 27.5" to the first baffle, but recently Lee Davis posted
that he has his set at 28.5" to the first baffle.

Mine's actually running pretty well at 27.5", I'm just wondering if I can
improve it by moving it back an inch.

Lee, if you read this, why did you move yours out another inch over what
your web site recommends? What did this improve (top end, mid range, etc.)?

Does anyone else have experiences to share with this combination?

Thanks,
Keith Black

----- Original Message -----
From: "Jerry Budd" <jbudd at QNET.COM>
To: <discussion at nsrca.org>
Sent: Wednesday, June 18, 2003 12:00 AM
Subject: Re: Webra 145


> >Let's try again - what rpm are you guys getting with what props with the
> >Webra 145?  I'm trying to tune mine with a Bolly pipe and have no idea
what
> >to look for.  I'm trying both a 17X10 and 17X12N prop.
> >
> >Thanks for any suggestions.
>
> 82-8300 rpm when new, 85-8600 rpm after ~30 flights.
>
> Magnum #1, OS-F or YS plug, ES-2C140L90 pipe set at 23-1/4" baffle to
> plug, stock Mac's 2-1/4" rise header, and an APC 17x12 prop.  The
> Webra MC (mixture control) carb I'm using gives a dead linear
> throttle response with NO jump onto the pipe.  Setup this way the
> motor throttles exactly the same as a DZ but with better performance.
> With the stock ProMix carb it throttles a lot like the OS (rich in
> the mid range).
>
> Jerry
>
> --
> ___________
> Jerry Budd
> mailto:jbudd at qnet.com
> =====================================
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