D1 boost vs pulley size ?
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D1 boost vs pulley size ?
What boost are you guys seeing on a D1 with a 3.5 pulley? how about a 4" ?
I ask because I took my truck out today for a shakedown with the new rear and it's running stronger than it ever has but looked over at the boost gauge and seen why. Eighteen lbs !!!!!! maybe a little more. The only thing I can think of thats different is that theres no slip now after a installing a HD tensioner and aligning the ps pump last fall. I love the power but it needs to go back to 12lbs , don't want to hurt anything... Tell me what ya got.
I ask because I took my truck out today for a shakedown with the new rear and it's running stronger than it ever has but looked over at the boost gauge and seen why. Eighteen lbs !!!!!! maybe a little more. The only thing I can think of thats different is that theres no slip now after a installing a HD tensioner and aligning the ps pump last fall. I love the power but it needs to go back to 12lbs , don't want to hurt anything... Tell me what ya got.
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#9
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Just dont get too crazy on timing and you'll be alright. Plenty of people getting away with high teens boost on stock castings. As stated in this thread blown06 is running 23#s which is pushing the edge of course but I wouldnt think twice about running 18 especially with a good set of bolts.
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Just dont get too crazy on timing and you'll be alright. Plenty of people getting away with high teens boost on stock castings. As stated in this thread blown06 is running 23#s which is pushing the edge of course but I wouldnt think twice about running 18 especially with a good set of bolts.