[s-cars] Diverter valve question

[Emre Washburn]

Rolf,

There is a huge difference between a diverter valve and a blow off
valve. A blow off will vent to the atmosphere (bad for cars that meter
air intake with a MAF before the turbo) and a diverter gives the
incoming air a path, bypassing the turbo (as to not cause it to slow
down) hence why it is also called a bypass valve.

I have had a stock unit, Bailey Motorosports DV70 and a
Stratomoshphere Hyperboost. Out of them all, the Hyperboost has seemed
to be the quickest reacting, and still gives off a cool sound. I've
heard some bad things about pressure loss on the Bailey units, but
many still use them. I've also heard good things about 710N stock TT
225 valves from the B5 S4 guys, but on high boost C4 S4/6's they seem
to have a higher than normal failure rate.

Tell your customer he's better off spending $380 ($160x2) elsewhere


--
Emre
92 //S4
90 Cq
40 valves 'O plenty!

On 11/10/05, RM <waves at epix.net> wrote:
> I bought a Baileys Diverter Valve (blow-off valve, whatever ;-)  from AWE
> last year at this time. I installed it in my 94 URs4. It worked well and had
> a nice mild 'whistle' when it activated between shifts. After about 5k
> miles, the whistle went away even though it still works well. I now have a
> customer with a 2.7t that wants the original valves replaced with ones that
> whistle. Does anyone have the baileys valves and did this happen to you? Are
> there any other suggestions for good valves that are out there? Thanks for
> your advice!
>
> Rolf
>
>
>
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