034 motorsport GT3071R Stage I Kit

[K7ERG]

http://www.034motorsport.com/product_info.php?products_id=1220

interesting!!!!

[Jamo]

Yeh love how it says the ABY needs a 4 bar FPR... err it has one standard!

Personally I would touch it with it being supplied with a 1.9 bar wastegate spring.

In other words this kit works of mechnical boost.

[troman]

mechanical boost?

yes...you still need to buy the GT3071 mechanism separately!

[Jamo]

mechanical boost?

yes...you still need to buy the GT3071 mechanism separately!

The ecu has no control over the boost pressure.

Only boost pressure of 1.9 bar or above will open the wastegate.

[sal_s2]

ADU has a 3.8bar fuel pressure reg

[JSHADZI]

Hello all, just to clarify, the ECU certainly does control boost pressure, our 1.9BAR spring gives essentially 13psi of boost base (remember, that's 1.9 BAR Absolute, or .9 atmospheric), all the boost above this level is controlled by the Motronic ECU, which we've re-mapped to give the targeted boost levels safely and accurately.

To my knowledge, the RS2 uses a 3.8 BAR regulator, thus the need to upgrade to the 4.0, if you have a 4.0 for whatever reason, then youre all set.

[K7ERG]

Hi Javad

Can you do away with the MAF?

[Jamo]

Hello all, just to clarify, the ECU certainly does control boost pressure, our 1.9BAR spring gives essentially 13psi of boost base (remember, that's 1.9 BAR Absolute, or .9 atmospheric), all the boost above this level is controlled by the Motronic ECU, which we've re-mapped to give the targeted boost levels safely and accurately.

To my knowledge, the RS2 uses a 3.8 BAR regulator, thus the need to upgrade to the 4.0, if you have a 4.0 for whatever reason, then youre all set.

Is that 100% the spring rate is 1.9 bar absolute?

That makes a hell of a difference if it is because the ones i've seen marketed aren't marked as absolute.

[Corey]

sure, you just need one of these

[K7ERG]

Vems i think i am going with but if the Motronic can do without MAF then i might look into a chip set.

[newt]

Is that 100% the spring rate is 1.9 bar absolute?

That makes a hell of a difference if it is because the ones i've seen marketed aren't marked as absolute.

I'm fairly certain the springs we make and provide with the kit are indeed 1.9 bar absolute....

[Jamo]

I apologise if that is the case I would strongly recommend you highlight that on that page as like minded owners will see that and be put of!

[JSHADZI]

Is that 100% the spring rate is 1.9 bar absolute?

That makes a hell of a difference if it is because the ones i've seen marketed aren't marked as absolute.

1.9 BAR atmospheric is about 28psi, so the real question is, if in fact were supplying such a spring, how we're magically lowering boost from 28 to 23, now that's a skill!

[Jamo]

1.9 BAR atmospheric is about 28psi, so the real question is, if in fact were supplying such a spring, how we're magically lowering boost from 28 to 23, now that's a skill!

I've heard heard of more magically things like 350 bhp on a K24 with stock injectors .........

[Wheeljack]

now we all know why psi is insufficient as a unit without reference, unless...how about psig and psia??? psi boost is usually interpreted as gage pressure, but when bar is referenced as a unit, boost may or may not be added to the unit, and this is where the confusion lies. what to assume if there is no modifier? well, i say absolute because my audi digital display shows my boost pressure this way, not gage pressure.