1st Gen. Ram - All Topics Discussion for all Dodge Rams prior to 1994. This includes engine, drivetrain and non-drivetrain discussions. Anything prior to 1994 should go in here.

HX-35/12cm EX.

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Old Aug 28, 2007 | 11:11 PM
  #1  
TJE's Avatar
TJE
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From: OK
HX-35/12cm EX.

Hey guys I bought a turbo that is a hx-35/12cm wastegated. I hope that it will bolt straight up. The down pipe I'm sure will need to be moved back an inch or so. Is there any thing else I need to know on this?

Can you set the acuator for a specific boost relief?

Thanks, in advance.
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Old Aug 29, 2007 | 12:00 AM
  #2  
Micaiahfied's Avatar
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From: Springfield, TN
you'll need to pick up an adjustable "boost elbow" i think i spent less than $10 on mine... then you can set it wherever you want! and yes it will bolt up other than moving the DP back a little.
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Old Aug 29, 2007 | 01:20 AM
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Bluedeviltorque's Avatar
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From: The Hardware City
Question Move it back?

Ok time for the million cent question.... How does one "move" the down pipe back an inch or so? (Way too familiar with the 2nd and 3rd gen trucks still )

I've asked various questions regarding this same swap on a few other threads and i'm learning more and more each post... so thank you all masterful 1st genners!

Mike
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Old Aug 29, 2007 | 05:48 AM
  #4  
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From: Geary Co. Kansas
I disconnected the downpipe from the headpipe at the factory joint and cut 1 1/4 in off the downpipe and put it back together.
ez
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Old Aug 29, 2007 | 08:32 PM
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From: B.C.
TJE to adjust your wastegate actuator, shorten the rod to increase opening pressure. Use a regulator and shop air hooked to the actuator hose to simulate boost pressure.This is easiest before you mount the turbo, as you may have to take the actuator off to adjust it. 35 psi is not a bad setting. your pretty close to max efficiency with the hx 35. Keep in mind boost can still build after the wastgate starts to open if you have the fuel to do it.
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