Built Engine Max Boost
flow
01-25-2009, 10:31 PM
#64
Junior Member
Thread Starter
iTrader: (2)
Join Date: Jan 2009
Location: Houston
Posts: 194
Total Cats: 0
So you're saying that an engine running 25psi and then 30psi would have the same flow. No because Flow increases (non-linearly) as boost increases. I also never said boost=flow just that boost corresponds with flow.
0
01-25-2009, 10:34 PM
#67
Have you read all my posts. I know its not boost but pressure. What does pressure equal. Torque. But did I ask about that. No I asked A ROUGH ESTIMATE ON THE BOOST PEOPLE RUN BEFORE THERE MOTORS BLOW UP!!!
I missed Sav's earlier post on torque. I never argued it wasn't torque.
I missed Sav's earlier post on torque. I never argued it wasn't torque.
You say "I know it's not boost but pressure", THESE ARE THE SAME ******* THING.
then..
"What does pressure equal. Torque"
PRESSURE DOES NOT EQUAL TORQUE.
Last edited by albumleaf; 01-25-2009 at 10:36 PM. Reason: because chuckyz is a stupid faggot
0
01-25-2009, 10:36 PM
#69
Waste your time. Lol. I can assure you the feeling is mutual.
Seriously, look back at your computer screen for just a second. Count how many people are telling you you're wrong. Also look at these people's post counts. Consider the fact that you could be wrong.
You seriously don't get it. Here's a realllllyyy simplified way of putting it
Fuel burned/unit time = HP Burning fuel is the goal. Period.
To burn fuel, you need oxygen. A turbocharger will increase the density of the air going into the engine. Denser air= more oxygen. However, the compressor of the turbo gets its' power from the turbine. The turbine places a restriction on the engine, causing back pressure. Small turbo's have smaller turbines that place a larger restriction on the engine. This causes a larger pressure (read, enthalpy) difference across the turbine, resulting in more shaft work to drive the compressor. So a turbo with a very restrictive turbine will spool fast, but won't make much power. Where as a turbo with a large turbine will spool slowly, but once spooled, will make more power.
Seriously, look back at your computer screen for just a second. Count how many people are telling you you're wrong. Also look at these people's post counts. Consider the fact that you could be wrong.
You seriously don't get it. Here's a realllllyyy simplified way of putting it
Fuel burned/unit time = HP Burning fuel is the goal. Period.
To burn fuel, you need oxygen. A turbocharger will increase the density of the air going into the engine. Denser air= more oxygen. However, the compressor of the turbo gets its' power from the turbine. The turbine places a restriction on the engine, causing back pressure. Small turbo's have smaller turbines that place a larger restriction on the engine. This causes a larger pressure (read, enthalpy) difference across the turbine, resulting in more shaft work to drive the compressor. So a turbo with a very restrictive turbine will spool fast, but won't make much power. Where as a turbo with a large turbine will spool slowly, but once spooled, will make more power.
0
01-25-2009, 10:38 PM
#71
Former Vendor
iTrader: (31)
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 15,442
Total Cats: 2,099
First and foremost, turbo size, because it's quite an exhaust restriction. Secondly, the intake ports and manifold. Changing the manifold to an aftermarket manifold with velocity stacks has proven to prop the torque band up quite a bit in the last 2000rpm or so, which greatly improves flow and top-end power.
Ironically, everything that you can do to increase flow in a turbo motor will reduce the restriction that we measure as boost.
Ironically, everything that you can do to increase flow in a turbo motor will reduce the restriction that we measure as boost.
0
01-25-2009, 10:41 PM
#76
Moderator
iTrader: (12)
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 20,651
Total Cats: 3,011
Why not "How much flow (HP) can my built (still imaginary and hypothetical benchracing) engine withstand?"
And the answer is we don't know because it doesn't exist.
"How high is the sky?"
Did you even read the 2.5 BAR post I gave you a few posts back?
That's a real world answer, and you skipped right over it.
And the answer is we don't know because it doesn't exist.
"How high is the sky?"
Did you even read the 2.5 BAR post I gave you a few posts back?
That's a real world answer, and you skipped right over it.
0
01-25-2009, 10:43 PM
#79
Junior Member
Thread Starter
iTrader: (2)
Join Date: Jan 2009
Location: Houston
Posts: 194
Total Cats: 0
Why not "How much flow (HP) can my built (still imaginary and hypothetical benchracing) engine withstand?"
And the answer is we don't know because it doesn't exist.
"How high is the sky?"
Did you even read the 2.5 BAR post I gave you a few posts back?
That's a real world answer, and you skipped right over it.
And the answer is we don't know because it doesn't exist.
"How high is the sky?"
Did you even read the 2.5 BAR post I gave you a few posts back?
That's a real world answer, and you skipped right over it.
0
