3rd Gen High Performance and Accessories (5.9L Only) Talk about Dodge/Cummins aftermarket products for third generation trucks here. Can include high-performance mods, or general accessories. THIS IS FOR THE 5.9L ONLY!

Stock boost and pyro temp

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Old 10-19-2004, 03:57 PM
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Stock boost and pyro temp

what are you seeing for stock boost pressure and pyro temps? and when do u start making boost? what rpm do u reach before making max boost? No boxes?
Old 10-19-2004, 05:35 PM
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The highest I have seen with my '03 is 26psi and 1250 degrees pre turbo. Stock engine except for the airbox mod.

MikeyB
Old 10-19-2004, 07:43 PM
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stock boost is 22-23 when it is summer temps, winter temps in the 30's will run 23-24lbs, egts are 1225 on a 70-100 mph run.
Old 10-19-2004, 11:40 PM
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My truck is stock and my boost will hit 32psi and my egts crusing at 70mph at just about 2000rpms are right around 800 pre-turbo, my max egts empty have hit 1250...
Old 10-20-2004, 07:29 AM
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I've hit 34 psi of boost and 1375*F preturbo I'm running stock.
Old 10-20-2004, 08:40 AM
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the 555 engines will make ±25psi boost, while the 600 will make the 30+ boost

±1200° for the 555 pre turbo, ±1300° for the 600's pre turbo
Old 10-20-2004, 08:15 PM
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Originally posted by Blue600
I've hit 34 psi of boost and 1375*F preturbo I'm running stock.

Hey Blue,


Did you mount your boost tube in the horn or using a boost bolt in the maniford?

Thanks,
Mark
Old 10-21-2004, 07:30 AM
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I tapped the airhorn.
Old 10-21-2004, 10:12 AM
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Did you mount your boost tube in the horn or using a boost bolt in the maniford?
Will a boost gauge yield different readings between these two installation methods? I was going to go the easier way with a boost bolt but if there's a question about accuracy, I want the accurate way!
Old 10-23-2004, 09:22 AM
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Originally posted by HighTen
Will a boost gauge yield different readings between these two installation methods? I was going to go the easier way with a boost bolt but if there's a question about accuracy, I want the accurate way!
I'd think that being in the manifold using the boost bolt would be more accurate, but thats just my thinking..
Old 10-23-2004, 11:52 AM
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The airhorn dumps into the manifold. I don't think there will be any difference in readings.
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