Stuff to try:

-Get a Forge RS DV and set it to where it just barely starts fluttering.
-Get an adjustable HD WGA and set preload to 19-20#.
-Trade your IX turbo for a TME, or my JDM RS TiAl.
-Get a LICP upgrade.
-Put a 9.8 hotside on your IX turbo.
-Get a custom flash with less initial timing advance.
-Get an Ebay O2 hsg.
-judicious porting of the hotside, so that exhaust gases "see" the tips of
the turbine blades sooner.
-Eliminate cat
-Progressive Alky ramping, set to kick in early, using a smaller orifice
-Forge UNOS, or Hallman Pro MBC
-Reference MBC off of compressor discharge nipple, not BOV line

-What, me worry?

 

Boost is proportional to the velocity of the exhaust gas, right?

So what the heck does load of the engine have to do with velocity of the exhaust? I don't buy that. I think it's the ECU dialing back the boost according to its preprogrammed settings to save the drivetrain.

 

I think it's simple. In first gear you run through the rpm range faster than the turbo can generate pressure. That's why it's best to rev first, and give it a couple psi advance across the rpm range.

 

Isn't that what launch control is for?

 

Wow, you really don't know what you're talking about do you??

 

This thread is retarded. If you want more boost in first gear go buy a turbo'd FWD car with a really tall 1st gear. AWD turbo'd cars have very short 1st gears... period.

 

put your car on a lift/jackstands and floor it, see how much boost you get!

 

Right - I'm not a mechanical engineer.

So Mr knows better, how is pressure created in a turbo? See I thought it works like this - there is this little wheelie thingie with fan thingies on it called a TURBINE WHEEL. It is inline to the exhaust and spins when HIGH VELOCITY EXHAUST goes through the housing. The higher the RPMs, the more air and thus the higher VELOCITY to create the additional spin which results in additional compression or in your loser world, boost.

Oh - so I was talking about this turbo thing.

So the turbine wheel is connected to the boost thingie - or as we call it a compressor wheel - via a shaft. The shaft transfers the "stuff that makes things move" - or force - from the turbine wheel to the compressor wheel.

See there is a fixed volume - the turbine housing volume - thus the only way to make more air go through it is to compress it (not likely, maybe slightly compressed but that creates BACK PRESSURE) or move it at a higher velocity. Stupid physics.

So tell me - how closed is your wastegate in 1st gear? Oh - you don't know? Maybe you should check because - surprise - that's controlled by the ECU.

I guess you're right though - I don't know crap about these. Maybe you can help me learn some more.

 

I found that I have more usable power down low after getting a base flash. Try getting one of those

 

What are you ranting about? The bottom line is the thread starter wants to know how to make more torque in first gear... the problem here is the question. Its retarded. You have to deal with the short gearing of 1st, period.

 

And my point stands - there is one basic way to increase power - to increase the velocity or volume of air moving through the turbine housing. The engine is still making the same power in 1st gear as it is in 3rd or 4th - you just have modifiers via the gears. Everyone else said stupid crap like "there's not enough time to build boost" and what not - I gave the engineering answer. Seems to me I answered and then elaborated on it for the benefit of of Mr evolutionary.

 

Youre right, you're making the same power in every gear, thats why I said the questin "how do i make more tq in x gear" is a retarded question. There should be a "Sticky" for dumb questions lol.

 

you're making the mistake of thinking in one dimension. Remember derivatives, integrals and rate of change? RPM's rise faster in first gear than 2nd, and 2nd faster than 3rd, etc...... You gotta think in two dimensions to "get it". Throw in a bit of inertia, parasitic drag, wind resistance etc. and it's a little easier to grasp the concept. The engine will not be under the same load in 1st gear as it will be in higher gears, and you will NOT make the same boost at a given rpm in any gear, with first gear being the laggiest, your tallest gear being the quickest to spool.

To address your point about the wastegate, put a simple manual boost controller on the car, take the "electronic" control out of the picture, and you still suffer the same experience.

 

Well said. I was just simplifying.

 

i dunno about u guys...but i find plenty of power in 1st gear in my IX...it's gears above 2nd gear that i wanna improve (esp. 4th and 5th )