Waste gate twitter on over run

[Snakes709]

But what I said is true, both protect the intake side from over pressure, just do it slightly differently.
Wrong choice of word by myself in the first place I guess
Anyway I don’t get the chirp on the over run and not a great amount of grunt up to 6 k, any ideas?

The chirp is from the supercharger

the blowoff valve makes a loud phhhssss (just like opening of bottle of soda) which you cannot hear on the stock bike since its rerouted to the internals,

you can hear them in my video, I have an aftermarket BOV



0:45 is the Supercharger chirp + some BOV
0:55 is only the Blow Off Valve

You can hear the bov on a stock bike. There are 2 distinctive sounds the h2 makes. There is a flutter noise above 5000rpm which is the blades of the supercharger and the loud chirp which is the bov.

[Bengarzy]

I think I know why I’m dissapointed with Performance, it would seem boost pressure is low, probably a leak on the pressure side. When I close the throttle the boost just sinks to nothing and never gets much past midway on big throttle openings and hi revs, I also checked today on a number of vids that when the throttle is nearly closed the gauge is over 50%, mine is almost not showing at all at the bottom of the scale. Will get it checked at the service next week. Bugger

[cOoTeR]

I think I know why I’m dissapointed with Performance, it would seem boost pressure is low, probably a leak on the pressure side. When I close the throttle the boost just sinks to nothing and never gets much past midway on big throttle openings and hi revs, I also checked today on a number of vids that when the throttle is nearly closed the gauge is over 50%, mine is almost not showing at all at the bottom of the scale. Will get it checked at the service next week. Bugger

Is your bike moving when you're checking this?

[Bengarzy]

Of course, no point revving the tits off it in the yard, just annoys the neighbours.
If I could jump on my brother in laws bike and test it would reveal that it is different to mine, unfortunately since collecting the bikes we have not been out together and he is super busy with his CNC sub contract business at the mo.
Funny thing is after collecting the bike and riding for 5 minutes I stopped to check the dealer hadn’t left the power setting on “ low” or “medium” as that’s how it felt, as it is now you would never get into trouble in the wet as it is so docile.....we will see.

[cOoTeR]

I'd check to see if there is something blocking airflow in the intake tube or airfilter housing.