WORKS Diverter Valve, How much Boost?
Not for the WORKS valve. A softer spring can be found in the OEM IX/JDM MR valve. Going stiffer than what's in there starts to compromise driveability. As mentioned, it holds 30+ PSI and we generally aren't running higher than that. If you need something to handle 35+ PSI, you're probably need to look into a true blow off valve from Tial, etc...
Not for the WORKS valve. A softer spring can be found in the OEM IX/JDM MR valve. Going stiffer than what's in there starts to compromise driveability. As mentioned, it holds 30+ PSI and we generally aren't running higher than that. If you need something to handle 35+ PSI, you're probably need to look into a true blow off valve from Tial, etc...
The GFB is a completely different design principle. It's main intent is to allow increased sound by venting a user-selectable portion of the gas to the atmosphere. The spring tension is adjustable to help fine-tune things. Overall, it provides decent driveability for a valve that discharges to the atmosphere, but gets a little finicky at higher boost levels.
You can crush either to the point where one is stronger than the other. The issue with crushing is that you can get to the point where it limits the travel of the valve and won't be able to expell the gasses effectively. (This is more of an issue at higher boost levels and the catch is that as you crush to hold higher boost you can't release it due to the decrease in CFM that can discharge.)
Bringing this one back from the dead.
Bill@Works can you please give us an update on how this BOV is working for your customers? Can you check and see if you've ever had any complaints of surging or stuttering?
Have you ever tested it back to back with a stock BOV to see exactly what difference it makes @30psi? Can you post a dyno graph?
Here is a dyno graph from my personal car comparing the stock IX valve vs. a Forge unit. . .

You can see that the stocker is loosing power and boost when the car should be hitting it's peak boost, and as pressures fall it leaks less. This is ~30-32psi max, falling to 24psi or so. . .
Only problem is I don't want to mess with "tuning" the Forge unit to get driveability where I want it. Do you think your unit will give the same gains with stock-like driveability??
Thanks!!
Here's a picture of the car it is for
Bill@Works can you please give us an update on how this BOV is working for your customers? Can you check and see if you've ever had any complaints of surging or stuttering?
Have you ever tested it back to back with a stock BOV to see exactly what difference it makes @30psi? Can you post a dyno graph?
Here is a dyno graph from my personal car comparing the stock IX valve vs. a Forge unit. . .

You can see that the stocker is loosing power and boost when the car should be hitting it's peak boost, and as pressures fall it leaks less. This is ~30-32psi max, falling to 24psi or so. . .
Only problem is I don't want to mess with "tuning" the Forge unit to get driveability where I want it. Do you think your unit will give the same gains with stock-like driveability??
Thanks!!
Here's a picture of the car it is for

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