Performance and Accessories 2nd gen only Talk about Dodge/Cummins aftermarket products for second generation trucks here. Can include high-performance mods, or general accessories.

what's a j hook?

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Old Nov 21, 2007 | 10:31 PM
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Doj Dewd's Avatar
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From: Okotoks, AB
what's a j hook?

i have been following the adrenaline beta thread and guys have been mentioning turbo's and j-hook's.

what's a j-hook? and when would i need one?

thanx
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Old Nov 21, 2007 | 10:32 PM
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Doj Dewd's Avatar
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From: Okotoks, AB
oh, i already searched 'j hook' and 'jhook' in the 2nd gen forums. it came back unsuccessful.
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Old Nov 21, 2007 | 10:36 PM
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From: conroe tx
holds the wastegate closed
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Old Nov 21, 2007 | 10:43 PM
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01 and 02 auto trucks have a hy35 turbo. It has a hard line instead of a soft line like a hx35. The j-hook is used on the hy35 to hold the waste gate closed longer to make more boost. It is only needed when adding fueling boxes. Does nothing for a stock truck.
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Old Nov 21, 2007 | 10:55 PM
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From: Okotoks, AB
ok, i see. thanx. my truck is a 2000 - does that mean i have a hx35?
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Old Nov 22, 2007 | 12:03 AM
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Originally Posted by BlackSilver
ok, i see. thanx. my truck is a 2000 - does that mean i have a hx35?
Yes you do, the 01-02 autos had the HY's.
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Old Nov 22, 2007 | 05:07 AM
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From: kelowna
My truck is somewhat of a mystery.It is an 01 5 spd.Im positive its 01 because it has the 01 style data link and map.However the turbo is hardlined.I dont get it unless someone changed out the turbo and wastegate system,which i seriously doubt.This little hy will burn alll the fuel I have easily without going over 1250.In my 12v my HX will not even come close .I can peg my pyro quite easily.I know the drag comp and smarty makes more fuel than a 0 plate .Whatever,Im not complaining ,just surprised
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Old Nov 22, 2007 | 02:06 PM
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you have the early 01. im 99% sure that the hy started in the 01.5 models and also come with disc brakes in the rear.thats also when the 6 speed came out. do you have disk brakes in the rear with the 5 speed?
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Old Nov 22, 2007 | 03:26 PM
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Mine has a hy. It is an 01 with drums in the rear.
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Old Nov 22, 2007 | 07:25 PM
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I have an 02 auto, and a J-Hook. It is a J shaped hook and a spring, then a solid mounting point. First, a wastegate is a device (valve of sorts) that allows exhaust gasses that normally help to spin the turbo to bypass it when the turbo reaches a certain amount of boost. The wastegate is activated by an arm that moves to open it. The J-hook attaches to the arm, and the spring helps to hold the arm and valve closed until more boost is achieved.

In a turbo diesel, more fuel = more power. But, more fuel without more air = black smoke, higher EGTS and under utilized power as black smoke is unburned or partially burned fuel going out the exhaust pipe. More air will cool that exhaust temperature down, and allow the fuel to burn more completely, and make for better combustion, and a bit more power.
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Old Nov 22, 2007 | 09:23 PM
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From: kelowna
no mines got drums too,and its a one ton.I think all the 1 tons were drum werent they?
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Old Nov 23, 2007 | 01:04 AM
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oops... sorry bucket head i messed that one up! the hy started in 01, but disk brakes and the 6 speed started in the 2001.5 models. i have no clue about the 3500s
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Old Nov 23, 2007 | 01:13 AM
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From: Okotoks, AB
thanks everybody for answering my questions.
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Old Nov 24, 2007 | 01:04 AM
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From: Reno, NV
Originally Posted by powermad
you have the early 01. im 99% sure that the hy started in the 01.5 models and also come with disc brakes in the rear.thats also when the 6 speed came out. do you have disk brakes in the rear with the 5 speed?
Just an FYI. I have an 01 with the hy and drum rear brakes... sucks for me, I got the worst of both sides. I guess it not like I can't upgrade both. The year drum brakes confused the heck out of me for a while. Dodge had no answers and when I had them run the vin, they said it was a 01. Even if you read Dodge's website, they specifically state 01 had the rear disc upgrade. I guess mine is a freak.
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Old Nov 26, 2007 | 07:46 PM
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will a j-hook do me good with the smarty?
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