98 K2500 Supercharged Dyno Pull

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Uploaded by on Jan 13, 2010

1998 GMC K2500 Lysholm Supercharged 7.4l (454) dyno run on Dynocom, results were 339hp and 475ft/lbs torque at the wheels. Truck is all bolt ons and Westers tuned, transgo shift kit. 5-6lbs boost.

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Uploader Comments (Clancykenney)

  • how much was the supercharger? was it a noticeable increase in power? can you get pulleys that produce more boost? did it help, hurt, or leave the fuel mileage the same? would you recommend it on a work truck? we have a 1995 suburban K2500 as a tow rig/ work horse, and im about to get a vortec 454, or vortec 496 to swap into it, but first im going to tear it down to the block, the goal is 500HP, and considering i know enough people to get parts cheap, it is very possible... should be fun...

  • @smithkid1996 The kit was used and was missing many components, in the end was around $4000 with a few extras. This was a Lysholm 1600cc compressor, it does not have a smaller pulley available, however if it had been a 2300cc Lysholm, there are smaller available. It will tow like mad with a supercharger but will use excessive amounts of fuel, for daily driving its about the same.

  • What is your setup for exhaust? Headers, mufflers? Love that sound. Building my Crewcab right now.

  • @rangoco Running Banks Full Length Torque Tube Headers, no cats, then goes from dual 2.75" into 4" collector, then to a dynomax 4" ultra flow race muffler, mandrel bent 4" tailpipe with a 6" MBRP tip.

  • how much would u sell that truck for?

  • @Dansz71sierra I`ve actually already sold it man, onto a new project already.

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  • i just got my 1995 gmc k2500 5.7/350 dynoed 378.5 hp and 345.9ft/tq it kills everything lol

  • @Clancykenney Thats actually not to bad considering its a gigantic 454

  • @M3RVITIS well about 11-13mpg around town, with easy driving, it can easily go single digits if your F`in around. ;-)

  • fuel millage?

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