stock turbo wastegate adjustment - Dodge Cummins Diesel Forum

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post #1 of 16 (permalink) Old 08-24-2009, 08:43 PM Thread Starter
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stock turbo wastegate adjustment

im thinking about getting the quadzilla boost fooler, and i need to know how to adjust the wastegate because i have the early 04 model with the mechanical wastegate. thanks


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post #2 of 16 (permalink) Old 08-28-2009, 03:16 PM
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You can get an adjustable boost elbow for the turbo that allows you to make more boost without the wastegate opening... This is the one I ordered for my early 04 Edge Boost Elbow for 94-04 Dodge Trucks
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post #3 of 16 (permalink) Old 08-28-2009, 03:55 PM
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What does the adjustable boost elbow do? When does the waste gate open?

2003 2500 Auto: Built Tranny from Source Automotive, FASS 150, Smarty S-06 POD, EDGE Insight CS, AFE Mega Cannon, Mag-Hytec diff/tranny, 5" TBE & Aero 5050XL, Firestone Airbags, Tuff Country Easy Ride 6" Lift, 37" Toyo MTs. The S.O.L.I.D Crew
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post #4 of 16 (permalink) Old 08-28-2009, 04:07 PM
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A boost elbow is a brass fitting that that replaces the original wastegate elbow and allows "adjustment" of the wastegate for a "higher" boost level. It bleeds off some of the original boost signal and fools the wastegate into opening later than OEM spec. I think my buddy is running about 30lbs of boost after installing his. Usually there is an allen adjustment on the elbow that you can adjust in and out to bleed more air around the wastegate so it opens later and allows you to boost more.
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post #5 of 16 (permalink) Old 08-28-2009, 04:09 PM Thread Starter
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cool im gonna have to try this out, when your running high boost and drop the throttle do you get any turbo bark?

Early 04-Suncoast tranny, 64/65/12, Raptor150, Smarty TNT/R, pusher, Blox CAI/W velocity stack, MBRP, Dipricol Optix-tranny,EGT,Boost, 20x12's
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post #6 of 16 (permalink) Old 08-28-2009, 04:12 PM
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I haven't noticed any on my buddies truck and he has been running it for almost 2 years I think. I haven't received mine yet to tell you how it does on my truck.
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post #7 of 16 (permalink) Old 08-28-2009, 04:38 PM
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Been running an adjustable boost elbow for about five years now. Set to 32 psi. No issues to report.

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post #8 of 16 (permalink) Old 08-28-2009, 07:46 PM Thread Starter
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how do you set the boost levels? or once you screw it tightly in it automatically has a setting?

Early 04-Suncoast tranny, 64/65/12, Raptor150, Smarty TNT/R, pusher, Blox CAI/W velocity stack, MBRP, Dipricol Optix-tranny,EGT,Boost, 20x12's
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post #9 of 16 (permalink) Old 08-28-2009, 07:52 PM
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It is adjustable.. usually an allen screw you adjust on the elbow itself that changes the amount of boost signal your wastegate receives so it thinks you are creating less boost than you are.. which is where the boost fooler comes in for your computer. And I definately recommend a boost gauge.
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post #10 of 16 (permalink) Old 08-28-2009, 07:54 PM
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I have a clamp on my hose. That is my adjustable elbow.....

There's no adjustment specs on the elbow itself. You adjust it and watch your guage if you have one. If you don't have a boost guage then you will not know how much boost you are making...

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post #11 of 16 (permalink) Old 09-12-2009, 09:31 PM
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what about something like the banks Big Head actuator? is that just a more heavy duty version? or is it the same thing as the elbow?

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post #12 of 16 (permalink) Old 09-12-2009, 10:11 PM
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From what I understand the Big Head wastegate has a heavier spring mostly so it doesn't open prematurely like the stock one can. It might create a little more boost also but the elbow or hose clamp actually restricts the amount of air making it to the wastegate so it thinks you are not creating as much boost as you actually are. The pressure isn't all making it to the wastegate to cause it to open. Do both and you might actually make a little more boost than one by itself..
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