Re: Vespa intake timing: let's talk numbers

Maciek Dub /
This single post is part of a larger thread. Start from the top or view this post in context.

You got us there, though I'm sure You'd be up for the challenge :).

I took a motivation break and once 'remotivated' got the rest of the numbers:

To recap:

Vespa cases, intake patch close to maxed.

Mazzucchelli Anticipato

Malossi 46.5MM Cylinder and piston.

Intake Opens - 132° BTDC (228°ATDC)

Intake Closes - 57° ATDC

Intake Duration - 189°

Transfers Open - 119° ATDC

Transfers Close - 241° ATDC

Transfer Duration - 122°

Exhaust Opens - 95° ATDC

Exhaust Closes - 265° ATDC

Exhaust Duration - 170°

Blowdown - 24°

Intake-Transfer overlap - 13° (132-119 BTDC / 228-241 ATDC)

I suppose I will find any 3am mistakes in the morning, but at first look the timings look like it should like high RPM..Thoughts?

This single post is part of a larger thread. Start from the top or view this post in context.
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

Want to post in this forum? We'd love to have you join the discussion, but first:

Login or Create Account