Want to get more boost for my cossie, so removed the jet out of the 'R' section of the amal valve to bleed more air off. But the boost is still not high enough. So now I think the jet that's in the middle section coming from the turbo needs to be smaller so less boost goes through the amal valve to the actuator. But you cant get a hole smaller... What is the best solution to up the boost. Preload is half a hole on the actuator rod (-34).

 

Either buy some brass bar and create your own or add a restrictor to the W port, or both.

Dont forget to check teh valve works of course...

 

Ok Stu, so some homework to do than for me, but now I know this is the right way to do it!

 

mig tips work great as inline restrictors

also come in different sizes too

have used them before on a 300zx twin turbo i had with good results

 

Dont have that material unfortunatelly..

Had a spare restrictor and has filled this one with some kind of thick glue paste that will get very hard so it can be drilled afterwards.

More tips are welcome!

 

Have solved it. I have put the restrictor that came out of the 'R' port back in the 'W' port. So now port 'C' and 'W' have the restrictors.
This resulted in 25psi peak boost, stabilises at 22 psi up to 5000 rpm than tailing of to 20 psi at to 6000rpm. This is with greens and a standard T3 turbo, so not bad at all I think?

Thanks for the support!