Cummins J Hook

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Cummins j hook.

The j hook uses a spring connected to the wastegate lever which controls the max boost pressure at which the wastegate opens. This is a great product. An aftermarket hook will keep the wastegate closed longer which allows for higher boost. Here is a representation of the tag on onan qg 4000.

I just installed my j hook today. Its also easier to take off the intake horn. A forum community dedicated to dodge cummins diesel truck owners and enthusiasts. Mine is from the top probably easiest.

Each cummins generator has a model spec number description which is shown on the serial number tag attached to the generator. As an integral part of the automotive supply chain at this point all call centers and distribution centers remain fully operational to ensure we keep vital service components flowing to vehicles used in transport of goods and emergency response. The j hook regulates the waste gate facilitating greater boost numbers which rise even higher as performance modifications are added. I have the tst and the j hook on mine just watch every once and a while mine seems to come loose and when i romp on it it acts like it has a miss.

If you own a 2001 2002 model year with the 24v cummins upgrading your j hook is a cheap and easy way to boost power. I have a 2001 ram 2500 with edge juice w attitude k n rv275 injectors from tst air dog fuel pump and now a j hook. Before the j hook on stage 3 i would reach 21psi of boost 1200 degrees egts. Installs much easier than the bully dog j hook and you dont need to pre tension the spring.

Despite all the performance potential and well documented durability the b series cummins is known for a lot of folks tend to overlook its shortcomings. Surges around 26psi but wide open doesnt surge at all. 5 fatal flaws of the b series cummins. Available for the 2001 2002 24 valve cummins engine equipped with the 47re automatic transmission.

Come join the discussion about reviews drivetrain swaps turbos. Awesome bang for your buck. Note the highlighted letter code in this case p which denotes the specification type of the particular generator which can then be referred to as spec p. I think the vibration of the engine and the crappy roads around here jiggle mine loose because i have to go out and push on the hook and pierce the wire again.

The higher volume of air will also help keep exhaust temperatures down.