silencium

37,5 L/s is the amount that gets sucked in. The amount after the turbo and in the intercooler is compressed and therefor it's 25 L/s, thats right. It's still a lot, and still proves what I meant.

misiozol

No, you are wrong again, we cant make nothing of something, Imagine 1L bottle with 1bar inside adding more pressure will add more flow , so flow will increase not decrease like you counting

misiozol

And with out turbo regular flow @3000rpm would have 16.9L/s

Regen

Great debate, I personally haven't researched this at all since I was always running very low boost

But since you're at it, consider this intercooler, on this engine, around 6500 rpm redline and let's say 15 psi.

Although if I hit 15 psi that's almost 120-130 hp territory.

On the other hand I was wondering how much hp is the stock TB good for.

If I remember correctly, the TB is 45 mm with 40 mm venturi restriction right at the entrance of the intake manifold.

misiozol

According to my calculations pressure drop on TB even with 1bar of boost @ flow rate 155.18CFM or 91.3L/s as u wish (that would give 1bar boost @ 6500rpm) would be so insignificant you would not even notice it as it would be 0.01bar @ 2 bars of boost would be only 0.04bar of pressure drop so first you would blow engine than have significant restriction in flow to have limited HP because of it

silencium

No, that is not correct!
A 4-stroke engine sucks up its capacity in every two revolutions. Means this 1 liter engine sucks up 1 liter of air in 2 revolutions. At 3000 rpm it makes 50 rps. This means it sucks up 50 times half its capacity per second. That is 25 liters per second. That is naturally aspirated with a volumetric efficiency of 100% (real values might be around 90%).

No, that doesn't matter! If it is under pressure or not, The VOLUME stays the same! And we are talking about the volume not the mass of air.

misiozol

Did I write anywhere about mass ? You think in wrong direction, have you ever tune a diesel car seems not , more flow equals more mass = more pressure equals more flow in same volume , you think in pressure where engines work on flow and on flow you choose turbo as well

BTW its obvious to me you have no idea on what you talk about as I have clearly stated units of flow, and you talk about volume which has nothing to do in here .

silencium

Boy, go back to school. You are talking weird ---- here which makes no sense. How does flow get defined? Its usually a volume per time, like m3/s. In volume the component pressure is not included. So the flow is the same, if its under pressure or not! But what am I talking to a smart *** troll. I am finish here with you, as you will anyway not understand. I realize now that YOU have no clue.
Btw, I am a physics teacher and an engineer.

misiozol

Then you must teach in play school !! , I'm talking mathematics if you are engineer then quite poor one as you have no idea what you talk about, and clearly have no clue inner workings of combustion engine, you have clearly NOT tune any car nor diesel or petrol in turbo other wise you would know about air flow and and is most important part in combustion engines , more flow = more mass of air in same volume , more mass of air in same volume equals more pressure and this allows for more fuel do be mixed in and will generate more hp is this explains for you if I put it like for 10year old kid ? Why have you not calculated or answer question about TB ?

BTW. if you looking for boy look in mirror, I bet my kids are older than you

Regen

Results are in.

114 Hp & 143 Nm @ 1 bar of boost. Stock internals, stock intake manifold, stock throttle body and stock gearbox.

Let me bring back the NA measured figures: 48 Hp and 68 Nm.

This is all at the crank.

Dyno load was set lower than the car sees on the street (they were skeptical about what the engine could handle) so this is why it appears that the turbo kicks in late.

Tuner tells me that on the street it pulls nicely and from relatively low rpm.

I have not yet driven it because I have not yet brought the car home (engine control setup was done in a different country from where I live).

We used VEMS for engine management.

The car is now running on brand new Denso Iridium IK24 plugs (stock were NGK's), new spark plug wires, 100 RON pump fuel.

From what they told me, they also installed an electronic boost solenoid, an LCD display ...and set up adjustable launch control + ALS from the software!! How sick is that!

Cannot wait to bring it home!