Someone say… ProCharger S650 GT?

[Zig]

Is it just the mic or the harmonics ? Inside not bad, outside ….

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[LavaRed50]

Is it just the mic or the harmonics ? Inside not bad, outside ….

It’s a centri blower. Half the reason people by them is for the whistle haha

 

[Zig]

It’s a centri blower. Half the reason people by them is for the whistle haha

Completely understood. Although still haven’t figured out why some folks haven’t found a way to have some fun with it and make it sing instead of whistle lol.

 

[LavaRed50]

 

[HWill]

Completely understood. Although still haven’t figured out why some folks haven’t found a way to have some fun with it and make it sing instead of whistle lol.

This is just how Centri's sound. You are not getting them to "sing" LOL
There is a gear option to make them less noisy but that's it.

They also go WOOOSH with the stock bypass and go WOOOOOOOOOSH with the race bypass.

 

[Zig]

This is just how Centri's sound. You are not getting them to "sing" LOL
There is a gear option to make them less noisy but that's it.

They also go WOOOSH with the stock bypass and go WOOOOOOOOOSH with the race bypass.

Completely comprehend. Was just trying to figure out if it was the mic or the speaker. Once stepped across the front and that one little dive under the hood sent the sound into vibration whistle. Wasn’t trying to say it wasn’t warranted was asking if the harmonics live were as they seemed in the recording.

 

[Zig]

One blower two intakes throttle bodies out of unison. Does the second tb suffer from forced resistance and either get pushed open from the added boost or will tuning address?

 

[robvas]

One blower two intakes throttle bodies out of unison. Does the second tb suffer from forced resistance and either get pushed open from the added boost or will tuning address?

you don't really have to worry about the "boost pushing the throttle open" because it won't really make boost unless you're at WOT

During idle and part throttle the bypass valve is open and letting the unused air out. It doesn't really work like a turbocharger.

 

[BrianJ77]

you don't really have to worry about the "boost pushing the throttle open" because it won't really make boost unless you're at WOT

During idle and part throttle the bypass valve is open and letting the unused air out. It doesn't really work like a turbocharger.

Really it's more about RPM...I can be at 5000 RPM at part throttle and still pushing a lot of boost. As you stated, a bypass/blow-off valve is required to prevent over pressure of the intake.

 

[LavaRed50]

This is just how Centri's sound. You are not getting them to "sing" LOL
There is a gear option to make them less noisy but that's it.

They also go WOOOSH with the stock bypass and go WOOOOOOOOOSH with the race bypass.

This is the “quiet” helical gears. The straight cut gears are loud haha. And this is the standard bypass. I want the race valve but had to do testing for the standard version first. The race valve will be on soon haha!

 

[HWill]

This is the “quiet” helical gears. The straight cut gears are loud haha. And this is the standard bypass. I want the race valve but had to do testing for the standard version first. The race valve will be on soon haha!

Really, I had the straight cut gears and it sounded exactly like that. I didn't think they were loud.

 

[LavaRed50]

Really, I had the straight cut gears and it sounded exactly like that. I didn't think they were loud.

It’s not that loud in person. I just went back and watched the video lol

 

[Q6543]

So are you running in stock injectors still?

have you tried to spin up some boost?

 

[LavaRed50]

Stock injectors. I picked up some good fuel for it so the factory timing won’t kill it. Stoich point is also a little different, so it should actually be a little more rich at WOT than what the ECU thinks it is. Putting plugs in and swapping fuels tonight, then have to look at what the max MAP is the stock calibration gets upset with, and figure out how to prevent the ECU from seeing that.

 

[Q6543]

Any updates @LavaRed50

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