Your BD pin is essentialy the same as the M5 pin. So, looking at all those videos as a test - a mostly stock truck, no variables, the same dyno, just a swap of fuel pins, it shows that the M3 pin makes the most power, period. As the profile gets more agressive, the less efficient it becomes, because the rack is basicly just dropping into the fullest fueling point(the deepest part of the pin), dumping fuel in that won't burn (because of low boost), rather than moving in a more efficient path. Utilizing more burnt fuel versus sending unburnt fuel out the pipes. Thats how I'm seeing it.
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stock numbers have gotta be off... i thought these old girls came with roughly 185 horse to start with?
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Originally Posted by tower_ofpower
(Post 441415)
stock numbers have gotta be off... i thought these old girls came with roughly 185 horse to start with?
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A stock cooled truck with a rag should be upper 140's lower 150's. A stock non cooled truck with a rag should be maybe 5 hp above that.
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yeah a little confused of the first dyno run hp and tq, i know my truck was gutless stock,but cummins is normally close to the hp they say the engine is rated at, i think my buddies 4 banger jeep has more then 78hp
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Originally Posted by Richie O
(Post 441423)
A stock cooled truck with a rag should be upper 140's lower 150's. A stock non cooled truck with a rag should be maybe 5 hp above that.
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I saw a 90 non cooled truck put down 166 but he had turned the fuel cone to deepest. Rest was stock.
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That low hp stock doesn't seem right to me...
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and the torque is way to low 140 ft lbs of torque and they're rated at 400 ft lbs. Somethings not right.
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Originally Posted by muskrat
(Post 441381)
Your BD pin is essentialy the same as the M5 pin. So, looking at all those videos as a test - a mostly stock truck, no variables, the same dyno, just a swap of fuel pins, it shows that the M3 pin makes the most power, period. As the profile gets more agressive, the less efficient it becomes, because the rack is basicly just dropping into the fullest fueling point(the deepest part of the pin), dumping fuel in that won't burn (because of low boost), rather than moving in a more efficient path. Utilizing more burnt fuel versus sending unburnt fuel out the pipes. Thats how I'm seeing it.
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The numbers on the videos are what came up for the dyno pulls, the guy running the dyno didn't think they should be so low but, we ran the dyno the same for the white truck and it made good power.
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