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EGT On The Duramax

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Old Jun 27, 2008 | 10:24 PM
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  #11  
Rttoys's Avatar
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Originally Posted by Johnny Cetane
I've also heard that you have to be careful with rapid heating/cooling cycles on the Duramax because of the aluminum heads. If you spike your EGTs then let them drop rapidly you can blow a HG. Anyone know if there is truth to this?
Don't worry about the heads or gaskets. The bolt pattern holds them just fine, it's mostly 'nay sayers' down'n the DMax and technology
 
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Old Jun 27, 2008 | 10:31 PM
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i spike my egts alot, i see 1700+ alot
 
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Old Jun 27, 2008 | 10:43 PM
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I've pegged a 2000 deg. egt guage many times at the track.
 
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Old Jun 27, 2008 | 10:49 PM
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mine only goes up to 1600, anything more than that i shouldn't be up there anyway.
 
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Old Jun 30, 2008 | 03:52 PM
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im sure you can get 4.10s in the big trucks, my tahow has 4.10s
 
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Old Jun 30, 2008 | 04:09 PM
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well I maintained about 1300-1400 into a strong headwind coming out here pulling my 5ver.. I think its okay..
 
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