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.
Cummins j hook.
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.
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Available for the 2001 2002 24 valve cummins engine equipped with the 47re automatic transmission.
Before the j hook on stage 3 i would reach 21psi of boost 1200 degrees egts.
The j hook regulates the waste gate facilitating greater boost numbers which rise even higher as performance modifications are added.
I just installed my j hook today.
Its also easier to take off the intake horn.
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Awesome bang for your buck.
This is a great product.
Mine is from the top probably easiest.
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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.
Im very happy with it now peaking at 35psi now just need injectors to help heat the egts up haha.
An aftermarket hook will keep the wastegate closed longer which allows for higher boost.
The higher volume of air will also help keep exhaust temperatures down.
Surges around 26psi but wide open doesnt surge at all.
Each cummins generator has a model spec number description which is shown on the serial number tag attached to the generator.
The j hook uses a spring connected to the wastegate lever which controls the max boost pressure at which the wastegate opens.
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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.
Story by mike mcglothlin.
