Re: Vespa intake timing: let's talk numbers

Maciek Dub /
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I've been waiting for this thread..

Blowdown is degrees of rotation from when the exhaust port opens to when the transfers open, it's still in play.

He is tuning that engine to a specific cylinder (the DR 43mm). When I cut my first crank (standard duration Top, before anticipado ones were available) I cut it to the specs in the cylinder kit (Malossi) instructions. I don't remember the exact numbers it resulted in, mainly just checked they were in the ballpark and that it shut before the transfers opened and vice versa, learning how it worked. Now that I snapped that one I'm going to rebuild using the marzuchelli anticipado. I haven't compared them Yet but hopefully I won't have to make much of an adjustment.

You've probably already seen this, but there's more info and numbers here:

http://vespa-ciao.nl/page.php?id=180

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Subject Written By Posted
  Vespa intake timing: let's talk numbersTopic by: Simon Nyi Simon Nyi 10/01/13 03:23PM
  Re: Vespa intake timing: let's talk numbersRe: Maciek Dub Maciek Dub 10/01/13 04:27PM
  Re: Vespa intake timing: let's talk numbersRe: Adam Blickhahn Adam Blickhahn 05/14/14 11:50PM
  Re: Vespa intake timing: let's talk numbersRe: #CrazyWayne™ rocks. #CrazyWayne #CrazyWayne™ rocks. #CrazyWayne 06/22/14 02:34AM
  Re: Vespa intake timing: let's talk numbersRe: Josh G Josh G 10/01/13 05:47PM
  Re: Vespa intake timing: let's talk numbersRe: Josh G Josh G 10/01/13 05:52PM
  Re: Vespa intake timing: let's talk numbersRe: Josh G Josh G 10/01/13 06:19PM
  Re: Vespa intake timing: let's talk numbersRe: Maciek Dub Maciek Dub 10/01/13 06:37PM
  Re: Vespa intake timing: let's talk numbersRe: Simon Nyi Simon Nyi 10/01/13 06:50PM
  Re: Vespa intake timing: let's talk numbersRe: Graham Motzing Graham Motzing 10/01/13 08:23PM
  Re: Vespa intake timing: let's talk numbersRe: Simon Nyi Simon Nyi 10/01/13 10:55PM
  Re: Vespa intake timing: let's talk numbersRe: Allen Halk Allen Halk 10/01/13 11:25PM
  Re: Vespa intake timing: let's talk numbersRe: Deadped Ryan Deadped Ryan 10/01/13 11:42PM
  Re: Vespa intake timing: let's talk numbersRe: Simon Nyi Simon Nyi 10/18/13 12:58PM
  Re: Vespa intake timing: let's talk numbersRe: Jason ( ͡° ͜ʖ ͡°) Jason ( ͡° ͜ʖ ͡°) 12/28/20 03:51AM
  Re: Vespa intake timing: let's talk numbersRe: «tyler » «tyler » 10/18/13 01:42PM
  Re: Vespa intake timing: let's talk numbersRe: Simon Nyi Simon Nyi 10/18/13 02:44PM
  Re: Vespa intake timing: let's talk numbersRe: Maciek Dub Maciek Dub 05/15/14 04:07AM
  Re: Vespa intake timing: let's talk numbersRe: Maciek Dub Maciek Dub 06/20/14 01:16PM
  Re: Vespa intake timing: let's talk numbersRe: Pete Puczasaurus Pete Puczasaurus 06/20/14 02:30PM
  Re: Vespa intake timing: let's talk numbersRe: Maciek Dub Maciek Dub 06/20/14 06:43PM
  Re: Vespa intake timing: let's talk numbersRe: Graham Motzing Graham Motzing 06/24/14 03:26PM
  Re: Vespa intake timing: let's talk numbersRe: Maciek Dub Maciek Dub 07/13/14 02:38AM
  Re: Vespa intake timing: let's talk numbersRe: Maciek Dub Maciek Dub 07/13/14 03:33AM
  Re: Vespa intake timing: let's talk numbersRe: #CrazyWayne™ rocks. #CrazyWayne #CrazyWayne™ rocks. #CrazyWayne 07/13/14 03:49AM
  Re: Vespa intake timing: let's talk numbersRe: Pete Puczasaurus Pete Puczasaurus 07/13/14 02:09PM
  Re: Vespa intake timing: let's talk numbersRe: Maciek Dub Maciek Dub 07/13/14 07:10AM
  Re: Vespa intake timing: let's talk numbersRe: Maciek Dub Maciek Dub 07/17/14 12:17PM
  Re: Vespa intake timing: let's talk numbersRe: Marc Friedman Marc Friedman 07/17/14 12:46PM
  Re: Vespa intake timing: let's talk numbersRe: Maciek Dub Maciek Dub 07/17/14 12:59PM
  Re: Vespa intake timing: let's talk numbersRe: Maciek Dub Maciek Dub 07/17/14 01:31PM
  Re: Vespa intake timing: let's talk numbersRe: Marc Friedman Marc Friedman 07/17/14 01:42PM
  Re: Vespa intake timing: let's talk numbersRe: Maciek Dub Maciek Dub 07/17/14 02:11PM
  Re: Vespa intake timing: let's talk numbersRe: Marc Friedman Marc Friedman 07/17/14 02:57PM
  Re: Vespa intake timing: let's talk numbersRe: Maciek Dub Maciek Dub 07/17/14 04:24PM
  Re: Vespa intake timing: let's talk numbersRe: peter heid peter heid 07/20/14 10:35AM
  Re: Vespa intake timing: let's talk numbersRe: Maciek Dub Maciek Dub 08/19/14 02:51AM
  Re: Vespa intake timing: let's talk numbersRe: Marc Friedman Marc Friedman 12/14/14 02:59PM
  Re: Vespa intake timing: let's talk numbersRe: Maciek Dub Maciek Dub 07/22/14 03:30AM
  Re: Vespa intake timing: let's talk numbersRe: Marc Friedman Marc Friedman 12/14/14 03:50PM
  Re: Vespa intake timing: let's talk numbersRe: Marc Friedman Marc Friedman 12/14/14 04:06PM
  Re: Vespa intake timing: let's talk numbersRe: Marc Friedman Marc Friedman 12/14/14 04:20PM
  Re: Vespa intake timing: let's talk numbersRe: Marc Friedman Marc Friedman 12/14/14 04:26PM
  Re: Vespa intake timing: let's talk numbersRe: Marc Friedman Marc Friedman 12/15/14 09:44AM
  Re: Vespa intake timing: let's talk numbersRe: «tyler » «tyler » 12/15/14 12:24PM
  Re: Vespa intake timing: let's talk numbersRe: Marc Friedman Marc Friedman 12/15/14 12:28PM
  Re: Vespa intake timing: let's talk numbersRe: Maciek Dub Maciek Dub 12/16/14 05:34PM
  Re: Vespa intake timing: let's talk numbersRe: alex . alex . 12/19/14 04:35AM
  Re: Vespa intake timing: let's talk numbersRe: alex . alex . 12/19/14 05:00AM
  Re: Vespa intake timing: let's talk numbersRe: Walt W Walt W 12/22/14 08:35PM
  Re: Vespa intake timing: let's talk numbersRe: Marc Friedman Marc Friedman 12/22/14 08:48PM
  Re: Vespa intake timing: let's talk numbersRe: alex . alex . 12/23/14 04:15AM
  Re: Vespa intake timing: let's talk numbersRe: Marc Friedman Marc Friedman 12/23/14 01:12PM
  Re: Vespa intake timing: let's talk numbersRe: Maciek Dub Maciek Dub 12/24/14 11:48AM
  Re: Vespa intake timing: let's talk numbersRe: «tyler » «tyler » 10/02/13 08:46AM
  Re: Vespa intake timing: let's talk numbersRe: Simon Nyi Simon Nyi 10/18/13 01:52AM
  Re: Vespa intake timing: let's talk numbersRe: «tyler » «tyler » 10/18/13 09:31AM
  Re: Vespa intake timing: let's talk numbersRe: Pete Puczasaurus Pete Puczasaurus 06/11/14 07:38PM
  Re: Vespa intake timing: let's talk numbersRe: Pete Puczasaurus Pete Puczasaurus 06/20/14 01:09PM
  Re: Vespa intake timing: let's talk numbersRe: «tyler » «tyler » 12/15/14 07:52AM
  Re: Vespa intake timing: let's talk numbersRe: Marc Friedman Marc Friedman 12/15/14 09:19AM

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