Loud blowoff valve

[fish]

I am with PRJ on this one... I could actually feel quite a difference with a pipebend vs non pipe between filter and MAF.

[QuattroFever]

ah, that'll be why. I had a U bend on mine. never tried without. hated having a U bend in there but guess if I had gone the trouble of getting rid would of been a wasted effort anyway.

[Big Lee M]

Well if it was that bad MTM would never have used it after spending all that money on research??? But who knows, but then again a lot of people post about things that you'd never be able to feel the difference between?

[andy10v]

It won't mess with the engine management system at all. You can fluctuate it between 25% and 75% either way

Surely it will mess the readings up, just 25-75% less so than a 100% atmospheric dump? IE possibly not easily noticeable, but still not ideal?

[prj]

Thanks for all the replies so far, guys!


Well, here's the story... My car currently looks very plain. Someone might as well think it's an A6 2.0 16V Avant. Unless, of course, they're more Audi-knowledgeable and take note of the inflated fenders of the S6...
Yes, it will run slower. But have you thought by how much? I think it will be barely noticeable if at all. Only the stopwatch will make the difference... The turbo makes pressure instantly even if all air is dumped.

It's not about turbo respooling. It's about metered air being dumped to atmosphere, so you flood your engine with fuel on every gear change, and it's slowww... Never mind not being good for it.

And the whole idea of your car is being a sleeper. So yes, it's a good idea that people think it's an A6 2.0 16V Avant.

Well if it was that bad MTM would never have used it after spending all that money on research??? But who knows, but then again a lot of people post about things that you'd never be able to feel the difference between?

Having a tube and then having a cone filter is fine, having it directly on the MAF is not.

Surely it will mess the readings up, just 25-75% less so than a 100% atmospheric dump? IE possibly not easily noticeable, but still not ideal?

It will be noticeable, it will still screw up the engine management.
Doing a 1st to 3rd WOT run you'll lose 0.5 seconds probably, if not more on gear changes.

[andy10v]

And the whole idea of your car is being a sleeper. So yes, it's a good idea that people think it's an A6 2.0 16V Avant.

That is why my S2 does not even have S2 badges, its invisible, an avant would be even better with 1.6 or 2.0 badges.

It will be noticeable, it will still screw up the engine management.
Doing a 1st to 3rd WOT run you'll lose 0.5 seconds probably, if not more on gear changes.

Clarifies that then, noise for show.

[Big Lee M]

Sorry I ment it will not affect as much as,it will not be noticeable to a normal person with it only losing that amount of recirculating air. I'm not 100% on the amount it splits it by but I think it's 25/75 sort of, just thought its better than a total atmospheric valve?

[prj]

Sorry I ment it will not affect as much as,it will not be noticeable to a normal person with it only losing that amount of recirculating air. I'm not 100% on the amount it splits it by but I think it's 25/75 sort of, just thought its better than a total atmospheric valve?

It's not "better", it's "less ****".
And yes, it's pretty damn noticeable if you make a timed log when shifting between gears, then compare the time.

[UrS4boy]

It's not "better", it's "less ****".

My guess is Deception is the OP's hip-hop gansta name and he wants his car to be phat for his peeps.

[Big Lee M]

So it's noticeable when you have logging equipment, 0.5 seconds over 2 gear changes isn't much really. You wouldn't even notice it, fair enough if your building a drag car but for a street car. You could lose that on a gear change if you was slower, ha ha. Each to there own really.

[Rusty]

I certainly noticed improved spool after changing gear when switching back to a closed circuit. The 'lag' is certainly a personal choice but over fueling starts to become an issue, depending in the level to which it occurs. Mine makes a suitably loud hiss on dump but is sealed, so is the best of both worlds for me

[Rusty]

The other, more extreme option would ne to move the MAF

[Thuppu]

Put a cone filter and plug the by-pass.

[prj]

So it's noticeable when you have logging equipment, 0.5 seconds over 2 gear changes isn't much really. You wouldn't even notice it, fair enough if your building a drag car but for a street car. You could lose that on a gear change if you was slower, ha ha. Each to there own really.

Well, sorry, I make cars go fast, and I fail to understand why someone would voluntarily make their car go slower and make the engine less reliable to get a hissing sound. That's all.
It's about the principle for me.

[Big Lee M]

Well, sorry, I make cars go fast, and I fail to understand why someone would voluntarily make their car go slower and make the engine less reliable to get a hissing sound. That's all.
It's about the principle for me.

I understand about what you are saying and you are a very cleaver man when it comes to tuning car's an I know your right but I was saying that a mear mortal that want to make a car hiss would not really feel the difference unless it was a real s h I t valve.