Has anyone replaced their Boost Recirculation Valve with aftermarket unit? Any performance difference or is it just reliability issue?

 

You will reach the max boost quicker

 

Which companies offer them, any recommendations... thanks

 

EVOMS
Protomotive

 

Not much to see on the Protomotive Site we'll have to call them. Any opinions ? are they worth the investment.

thanks

 

When i told my Porsche dealer that i ordered the BRVs he said its the best thing i have done to the car.
Especially when the car is not stock and the boost is higher.

 

One of the main benefits of the aftermarket unit is much increased reliability and responsiveness. We prefer to use the EVOMS units. The OEM units are prone to deterioration and boost leaks after time, especially in higher horsepower cars. The EVOMS recirc valve is much more responsive and reliable.

We have these in stock if you're interested.

 

And what about Forge BRV's???




Following the resounding success of our direct replacement valves for other OEM applications utilizing Borg Warner triple-K series turbochargers, we have just completed development and testing of a pair of direct replacement bypass valves specific to the Porsche 997 twin turbo application.
These direct replacement units utilize full billet aluminum construction and a piston based design that has proved successful throughout our entire range of application specific and universal valve products. Viton brand high temp silicone o-ring are used for sealing of the piston and the valve cap, Mobil1 fully synthetic bearing grease for lubrication of the internals, and a proprietary spring rate is used to handle the widest possible range of boost pressures.
The low-profile cap incorporates a knurled outer ring and a swiveling center section that allows for 360 rotation of the vacuum nipple for ease of fitment. This also allows for quick disassembly of the valve without requiring removal from the vehicle should servicing of the internals be required.

LINK

 

Tiago, Great

Are you using these BRVs. Do these replacement BRVs change toe pop off pressure to add a little boost?them? can you help with the custom oem muffer, nice 100 cel cats .. where did you get this work done

thanks

 

No, but as Forge is a reputable company i would like to hear any thoughts about it vs Promotive/Evoms...

Another thing related with quick and reliable boost is the silicone hoses. I found Venair, a company with a quality compared to Samco but with the lower prices i've seen for silicone hoses. 997TT Venair Silicone Hoses KIT

 

can one use after markret brv on a stock car, will there be an improvement in respones or is it reccomended only on modified cars

 

Can anyone think of a reason why not to do this? I have the Fabspeed sport exhaust V3, GIAC 93 tune, and Fabspeed headers. Seems to be an obvious, and rather inexpensive enhancement for both performance and durability.

 

Why is it obvious?

Many tuners both US and European alike who report that there have been no issues with the stock BRV on their tuned vehicles. Is there any data to suggest that acceleration is improved with aftermarket BRVs, or that stock BRVs on the VTG turbos are prone to failure like diverter valves were on the 996TT?

It would be nice to have objective information about why BRVs need to be changed.

 

Bobby is right, BVs are not necessary on 997tt's with vtgs.

 

Conceptually (to a non-technical car person), it sounds obvious to me.

Agreed...anyone with data, please share. Anyone else with pre- and post-BRV anecdotes, please also share.