I bought a set of wastegates from Sharky this past week and I'm about 5 minutes from getting the install started, any tips on the install or adjustment?

 

Piece of cake....You'll love it.

 

Make sure the actuator rod nuts are tight, secure and the metal clip is firmly snapped on.. Congrats, great bang for the buck... Kevin

 

Ok, I got them installed, but when I removed the stock ones there was a certain amount of tension adjusted into the diaphram already. I measured the how much, and it looks like about 1/8". Does that sound right? It seemed like the RH side had more than the left, but I assume they should be equal.

Does anyone have a baseline measurement?

 

The rod length measurement is CRITICAL.... call Sharkey or EVO and get the right measurement. I have a different setup but 30mm sounds right... Kevin

 

FWIW - I talked to John @ EVO and he said to set them with 4 turns of preload. I'm headed down right now to check it out.

 

It has nothing to do with rod length. It must be adjusted by applying pressure to the acuator and watching the flapper lift off of the seat. Check with EVO but I am almost positive the pressure should be 12 psi. When your gauge reads 12psi the flapper should just be starting to move. Make sure both sides are exactly the same.

 

Well, my setup has EVERYTHING to do with actuator length...but you knew that. Kevin

 

I did check with EVO and they told me 4 turns? I can assure you that 4 turns is TOO MUCH now that I've had a test drive. I saw 1.5bar breifly before I let off the gas, and I saw 1.3 a few times with only 3/4 throttle. Can't stay in it very long anyway because the FI shuts down because of the overboost.

Once it cools down a little I'm going to get under there and re-adjust them. It sure would be nice to know whether to use the "X turns" method, or the "X psi" method?

 

This is how to measure rod length so you dont boost 1.5 bar.. Kevin

 

Kevin
The Evo WG adjusts differently then UMW's

 

Now that sure explains alot, but the adjustment of the rod is the same, just by different means. Kevin

 

Riddle me this. How does the ECU control boost?

A Does it apply pressure to the acuator to open it?
OR
B Measure the distance of the rod and adjust it accordingly?

Then you have your answer. I have shared what I know to be true. Your method clearly does not work.

 

Does not account for manufacturing tolerances for the springs, rods length and bends in the rod.

The way the ECU controls the acuator is by applying pressure. Makes sense that is MUST be adjusted the same way.

 

Riddle me this: how does the ECU control boost when the rod is not properly set initially? He has it set for 1.5 bar...too much. If he backs it off too far not enough boost. How does the ECU magically close the flapper when the rod is mechanically keeping it open(exaggerated example I know) ? Kevin