Hi,

I recently installed the upgraded wastegate rods from Evolution Motorsports. With the old ones, maximum boost was 1.2 bar and may hit 1.3 on a cold day.

Highest achieved since I replaced the old rods is .9 to 1.0. Does anyone have any information on where these should be set / threaded to ensure that they are synchronized and operating at optimum level? Thanks in advance.

 

If they are 1bar rods they should start to crack at 10psi? There are procedures outlined here somewhere, do a search? If they are upgraded, they should already be set at 1bar? Call EVO?

 

plenty of threads about this but in a nutshell you put a small hand operated pump hooked to the wastgate, with a ACCURATE guage, then put a dial indicator on the rod end, for a good start on a k24 car you want the rods to move about .005" when ur guage hits 11 psi...that should put u at about 1.1-1.2 bar, do each WG seperately then drive, check boost and repeat adjustment up or down as needed..I run 12.5 psi and make 1.3-1.35 bar


Oh BTW before u move it at all check what pressure u open at,as then u have a really good baseline as to what pressure will produce what bar boost.

 

Anyone know where to get this "Accurate Gauge and Pump" from?

Also, ayone running thse hard out there? Have the rod breaking issues been resolved?

 

I used the head off my moroso drag tire inflation guage, 1-15 psi and a 3"+dial..really easy to read, hooked it 2 a small hand vac/pressure pump from napa,works great and you can read guage down to 1/8th lb pressure..so what u have is a brass "t" with guage on 1 leg, line to pump on 1 and line to WG on one..

And yes I drive the living crap out of my car....be super careful so rods have full movement with zero bind when setting it all up..and yes sometimes rods break..no biggie..

 

I used a motiv brake bleeder. I bought a magnetic dial gauge off the web. pm me if you want the brand. DERBOOST, has the process correct.

 

I just ordered a MV8500 for $50 a killer deal and a useful piece of equipment. I can use it for my boost gauges also. If you Google mityvac mv8500 you will get all the info.