UK Karting - Notice Board (2-Stroke Karting) : Rotax jets

Notice Board (2-Stroke Karting)

Rotax jets
Posted by 'alanrr' on 18 Jul 2014 @ 22:43

| View Message Thread | Reply to this message |

alanrrJoined: August 2001
Total Posts: 491
[ View User Profile ]

Just had an interesting afternoon in the shed playing with my Rotax jet flow unit that I built.

I started by testing a set of someones 'laser measured' jets with some bizarre results.

I found three things you can't do.

Rely on the stamped number.
Use pin gauges.
Measure with lasers.

The accurate way is to measure flow rate and I found I could definitely say a jet was a 153.5 not a 152 once I worked out how Dellorto calculate the numbers on the jets.

With enough jets you can easily build a set that goes up in single increments.

I found one particular thing really throws out the flow results and causes variations that I didn't expect to show up, causing multiple tests of the same size jet to be faulty.

Message Thread:

Rotax jets by 'alanrr' << You are here!

Re: Rotax jets by 'BrianP' (19 Jul 2014 @ 11:05)

Re: Rotax jets by 'PeterCliff' (19 Jul 2014 @ 18:09)

Re: Rotax jets (Peter) by 'alanrr' (19 Jul 2014 @ 21:26)

Re: Rotax jets (Peter) by 'PoppaAl' (21 Jul 2014 @ 9:56)

Re: Rotax jets (Peter) by 'alanrr' (21 Jul 2014 @ 11:11)

Poppa Al by 'alanrr' (22 Jul 2014 @ 14:28)

Re: Rotax jets by 'GTKessex' (24 Jul 2014 @ 8:44)

Re: Rotax jets by 'alanrr' (24 Jul 2014 @ 9:57)

Post a Reply:

You may post a direct reply to this message which will appear in this thread.
To post a new or unrelated message use This Form. Top of Page
Notice Board Index

[ UK Karting Main Index ]


News	Karts & Karting	Notice Board	Market Place	Companies Directory	Tracks Directory	Events Calendar	Race Results	Photo Gallery	Links