Performance and Accessories 2nd gen only Talk about Dodge/Cummins aftermarket products for second generation trucks here. Can include high-performance mods, or general accessories.

Pitch change from turbo?

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Old 03-13-2007, 07:54 PM
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Pitch change from turbo?

Should the pitch of the turbo change when increasing rpm.
Old 03-13-2007, 08:00 PM
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Yup.

asdf
Old 03-13-2007, 08:04 PM
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Pursheateit.
Old 03-13-2007, 08:15 PM
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Yes, but only under load.

Revving in park or neutral will accomplish nothing, turbo wise.


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Old 03-13-2007, 11:31 PM
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Hey now, I can build 9 lbs in neutral by doing a double blip of the throttle, and that was before the new mods
Old 03-14-2007, 12:07 AM
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I found out today I can get about 16PSI in neutral As far as the question goes yes the pitch will change, as the RPM's of the engine increase so do the rpm's of the turbo.
Old 03-14-2007, 11:13 AM
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The pitch of the turbo also changes as it gets closer to the edge of its performance map. Over 35 psi, it starts to make a different whirr sound on top of the whistle.
Old 03-14-2007, 11:42 AM
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Who can hear the turbo over the exhaust !?
Old 03-14-2007, 11:50 AM
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The turbo whine should be part of the exhaust... Least thats what I always hear.
Old 03-14-2007, 11:58 AM
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i cant

i cant hear the turbo with the windows down, the stacks like to scream to me.
Old 03-14-2007, 11:27 PM
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Originally Posted by Eradan
Who can hear the turbo over the exhaust !?
I can due to having a muffler I've got a stage 1 afe with the torque tube and it makes the turbo scream.
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