Made a Restrictor for Wastegate.

[Jeff H]

It took about three of them before I perfected one. I took a mild steel dowel pin. I cut it to about 3/4 inch long. Then deburred the edges. I asked one of the tool makers I work with for his smallest drill bits. Wow they were small. Slightly bigger than a human hair. I broke the first bit. But the secound one I was more cautious. I cleaned and blew out the tiny hole in the pin. Then Installed it in the rubber hose near the afc. I put a small radiator clamp outside the rubber hose and then squeezed it to ensure the pin will stay put and seal it up good. How does it perform. Well boost really jumps up fast but will fall back some. but by that time you should be in the next county. #ad


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95 Dodge Ram reg cab,2500,5spd,Tweaked & Peaked Cummins Diesel, MODS, K/N filter,dual exhaust 5'' tips,Lost muffler,turbo silencer, ACCESORIES,ISSPRO turbo & pyro. gauges. Shell Rotella in pan. Fleatgaurd filters. 140k. on the OD.
If you can smell this message. I Farted

 

[Macmc01]

What size dowel pin did you use? Or what size hose/tubbing is the afc/wastegate use? I think I will try it.

Good job
Mac

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95 Ram 2500 Auto Std Cab, Cat & Muffler Fell off, New Guages, 130,000 miles.
Bombed-to-be!

 

['956Wheel]

Jeff, What is the hole size in the pin? I am guessing your co-worker loaned you his #61-#80 drill set... . but thas a few choices before I'll get it.
Thanx,
Mike

 

['956Wheel]

Tell me more, Jeff... ... what size is the hole?

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9535hundred

 

[Jeff H]

The size of the hole I really don't know. But you probably would only fit 2 human hairs through it. I think a smaller sized hole would work a little better. As far as a dowel pin. Just use something that will fit snuggly into the hose. Also made out of something soft. Other wise you may have trouble with breaking the bits.
I was pondering of coiling up about 2 to 3 feet of hose. so that it would take more time to compress the line. Thus delaying the time to open the wastegate.

 

[illflem]

I made a similar restrictor while playing around with the cruise control vacuum line that would work much the same. I just used a 1/4" barbed plastic coupling,the type used for irrigation, 49¢ for ten. Filled the coupling with glue then pushed needle through it after the glue was dry, worked great. It would also be easy to drill if you want to go that route.

Jeff, I don't think coiling up extra hose will work for you.

[This message has been edited by illflem (edited 05-01-2001). ]

 

[CPFF]

You got a restrictor in the line, now all you need is a small "controlled" leak between your restrictor and the wastegate. That will let you dial-in the boost you want,the maximum being limited by the total amount of fuel added. A tee in the line with a tiny needle valve works great.

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CUMMINS POWERED FAST FORD