Boost pressure release Spartan 210 vs 275. - Ford Powerstroke Diesel Forum
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Old 02-21-2013, 11:05 AM
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Boost pressure release Spartan 210 vs 275.

The boost release on the 210 tune is WAY more aggressive than on the 275, at least on my truck. Is that normal?

210

http://youtu.be/y0sQ0tJVlqs

275

http://youtu.be/5i3eMAiE6LM

Last edited by havok209; 02-21-2013 at 03:44 PM.
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Old 02-24-2013, 06:45 AM
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yeah.. I would say normal, my truck is stock and i can get it to do that so i wouldn't worry.
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Old 02-24-2013, 08:20 AM
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that would be expected sound releasing 30+ psi of boost when your torque converter locks and you go into overdrive. mine does it on either tune accelerating like that.
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Old 02-24-2013, 09:06 AM
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Re: Boost pressure release Spartan 210 vs 275.

I understand what the sound is. I guess my question is, why would the milder tune sound so much more aggressive than the bigger tune?

Could it be that the bigger tune itself affects the rate at which it releases the boost through the turbos?
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Old 02-24-2013, 03:46 PM
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The way the vgt is set and other factors come in to play. Usually lower tunes run higher boost than higher tunes until a certain point in throttle. So for daily driving and etc your lower tune will run a higher boost, but at WOT and hard throttle runs your higher tune will run higher boost. If you can understand what I am saying
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Old 02-24-2013, 08:53 PM
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Quote:
Originally Posted by WoodBoy View Post
The way the vgt is set and other factors come in to play. Usually lower tunes run higher boost than higher tunes until a certain point in throttle. So for daily driving and etc your lower tune will run a higher boost, but at WOT and hard throttle runs your higher tune will run higher boost. If you can understand what I am saying
Ah. Makes sense. Thanks for clearing that up. Makes me feel a little better about my truck, I'm new to diesels so I'm still learning the ins and outs.
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