TiAL's new recirculating BOV.... - Page 2

The_Predat0r · Mar 18, 2008, 07:48 PM

I saw that thing on the PRI. Should be as good as TiaL other products!

midwestmonster · Mar 18, 2008, 08:28 PM

Very nice piece!

evolutionEvo · Mar 18, 2008, 10:58 PM

Silent? i liek the other external BOV

EVO8LTW · Mar 19, 2008, 08:47 AM

I'm curious about the flutter issue as well. Every aftermarket BOV that I've driven/seen/heard tends to flutter at part throttle conditions and release in a jerky sudden way, which is really detrimental to keeping your car on the edge of traction when you are in the middle of a sweeper on a track or autocross course. The OEM valves don't do this, but then they don't hold high boost as well either. For now, I'm using a DSM 1G valve with a Dejon leak-stop kit. If I could find something simpler and more elegant that had the same smoothness and more holding power I'd switch.

JeffMas1587 · Mar 19, 2008, 10:41 AM

Quote:

Originally Posted by TiALSport

at 23psi on a GT3076 audi 2.2L you hear nothing

what kind of audi are you running that on

tony_b · Mar 19, 2008, 11:24 AM

The "flutter" is actually compressor surge which is caused by the CBV not opening fast enough under low boost.
I'm sure because of the size of this thing, it won't have to open much to relieve the pressure in the IC piping.
I also think that the size and amount of air that can flow through this thing is why it's silent. Blow through a straw, you hear a loud hiss. Blow the same volume of air through a paper towel tube, you'll have MUCH less resistance and hear virtually nothing.

tweakdsm · Mar 19, 2008, 11:35 AM

how much they go for? I want one! bzzzz!

Evoryder · Mar 19, 2008, 11:40 AM

thing is huge...silent is good.

GrocMax · Mar 19, 2008, 11:42 AM

How do you clean resin out of the bowl?

TiALSport · Mar 19, 2008, 11:44 AM

Quote:

Originally Posted by JeffMas1587

what kind of audi are you running that on

A4 with a stroker 2.2 diesel block, 30R, S4 driveline and RS4 bodywork

EVO8LTW · Mar 19, 2008, 11:48 AM

Quote:

Originally Posted by tony_b

The "flutter" is actually compressor surge which is caused by the CBV not opening fast enough under low boost.
I'm sure because of the size of this thing, it won't have to open much to relieve the pressure in the IC piping.

I'm not sure it's a matter of valves not opening fast enough, as much as it is that they don't open at all until there is a significant drop in manifold pressure, which makes it difficult to modulate the throttle smoothly and drive at a constant, say, 50% boost level, without either the feeling of the valve opening and closing rapidly, giving a herky jerky feeling to the car, or the feeling that boost is continuing to build until you lift off enough to open the valve at which time you lose almost all boost.

(How's that for a run-on sentence!)

I'd love to hear Tial's view about all of this.

Billy@EnglishRacing · Mar 19, 2008, 11:57 AM

looks great!

bosox28 · Mar 19, 2008, 09:43 PM

Quote:

Originally Posted by GrocMax

How do you clean resin out of the bowl?

Haha thats the same thing my friend said when he saw it!

BoostEEd · Mar 20, 2008, 11:43 AM

Quote:

Originally Posted by EVO8LTW

I'm not sure it's a matter of valves not opening fast enough, as much as it is that they don't open at all until there is a significant drop in manifold pressure, which makes it difficult to modulate the throttle smoothly and drive at a constant, say, 50% boost level, without either the feeling of the valve opening and closing rapidly, giving a herky jerky feeling to the car, or the feeling that boost is continuing to build until you lift off enough to open the valve at which time you lose almost all boost.

(How's that for a run-on sentence!)

I'd love to hear Tial's view about all of this.

x10000000000

WhiteEvo05 · Mar 20, 2008, 08:44 PM

Quote:

Originally Posted by EVO8LTW

I'm not sure it's a matter of valves not opening fast enough, as much as it is that they don't open at all until there is a significant drop in manifold pressure, which makes it difficult to modulate the throttle smoothly and drive at a constant, say, 50% boost level, without either the feeling of the valve opening and closing rapidly, giving a herky jerky feeling to the car, or the feeling that boost is continuing to build until you lift off enough to open the valve at which time you lose almost all boost.

(How's that for a run-on sentence!)

I'd love to hear Tial's view about all of this.

x10000000001

I am eager to see how it installs in an Evo 8 and how it fairs with the part-throttle-modulation-huck-a-buck (yes, that is a technical term!)