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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Procede Question



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      05-18-2007, 04:36 PM   #23
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Here is one that I can find, particularly post # 2.

http://www.e90post.com/forums/showth...ght=dyno+sheet

Once I get home, I will post the other one's Im at work and cant find them right now.

Now just to let everyone know, im not putting Procede down, its a great product, and I have it and believe in it 100% percent. Im just curious as to what this phenomen is. I have never had a turbo car before.
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      05-18-2007, 04:36 PM   #24
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Originally Posted by lawdude View Post
You're trying to figure out whether it's worth spending $1300 bucks to help you with your 0-20 times? Fugitaboutit and keep your money in your pocket.
LOL
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      05-18-2007, 04:39 PM   #25
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      05-18-2007, 04:42 PM   #26
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Scalbert, interesting what you say about the car being over and under boost, and thats why its trying to adjust.

That would be an explanation for the boost gauge requirement for beta testers of 2.0.
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      05-18-2007, 04:47 PM   #27
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Quote:
Originally Posted by pikkashoe View Post
Here is one that I can find, particularly post # 2.

http://www.e90post.com/forums/showth...ght=dyno+sheet

Once I get home, I will post the other one's Im at work and cant find them right now.

Now just to let everyone know, im not putting Procede down, its a great product, and I have it and believe in it 100% percent. Im just curious as to what this phenomen is. I have never had a turbo car before.
That's just slight boost oscillation. In any responsive (ie, small turbo'd) FI system, there will always be a slight boost overshoot followed by a slight undershoot. That's what makes a closed loop boost control system work. You can attempt to avoid this behavior by making the correction steps smaller but you usually sacrifice boost response in the process. Having a +/- 1psi short term oscillation just after spool up is pretty standard in a car tuned to provide max boost response and power.

Shiv
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      05-18-2007, 04:59 PM   #28
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Quote:
Originally Posted by lawdude View Post
You're trying to figure out whether it's worth spending $1300 bucks to help you with your 0-20 times? Fugitaboutit and keep your money in your pocket.
Hey, we all paid good money for a car that does lots of things better and faster than we really need. It's all about the thrill of having something that has been engineered well, and can kick the ass of just about everything else on the road. Some of us have paid EXTRA money (for a PROcede) to have a car that can kick the ass of most of the other 335s as well.

Do we need a car that will go 155 the once or twice we have the opportunity to do so? Probably not, but it's a hell of a lot of fun when we can, right?

Everybody has to weigh the following question: At what point do I stop paying for more performance/engineering? Most of us on this board have stopped at the point occupied by the 335i. Others who may have deeper pockets may stop at an E55, or may keep going and get a Ferrari Enzo.

I love having the most perfomance I can buy as well, but I don't have unlimited resources, and I would venture to guess that most of you here don't either.

So, we have to decide what performance level is the most we are willing to pay for. It's the old cost/benefit ratio, better known in car circles as price/performance ratio.

I was just trying to raise some of the points I have considered in my choice of a car and its upgrades, and to be honest, even those probably won't keep me from getting a PROcede, or any other reasonably priced add-on that will allow me to leave even more people in my dust!
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      05-18-2007, 05:04 PM   #29
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Cool , thanks for the explanation. I noticed going from 1.4 to 1.45 that the oscillation was reduced. I hope this trend continues with 2.0. I still have a tiny bit of oscillation which is noticeable in 3rd gear. 1.45 pretty much eliminated all the oscillation in 2nd gear. Shiv thanks for the explanation, now I know.
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      05-18-2007, 05:08 PM   #30
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Quote:
Originally Posted by droptop335 View Post
Hey, we all paid good money for a car that does lots of things better and faster than we really need. It's all about the thrill of having something that has been engineered well, and can kick the ass of just about everything else on the road. Some of us have paid EXTRA money (for a PROcede) to have a car that can kick the ass of most of the other 335s as well.

Do we need a car that will go 155 the once or twice we have the opportunity to do so? Probably not, but it's a hell of a lot of fun when we can, right?

Everybody has to weigh the following question: At what point do I stop paying for more performance/engineering? Most of us on this board have stopped at the point occupied by the 335i. Others who may have deeper pockets may stop at an E55, or may keep going and get a Ferrari Enzo.

I love having the most perfomance I can buy as well, but I don't have unlimited resources, and I would venture to guess that most of you here don't either.

So, we have to decide what performance level is the most we are willing to pay for. It's the old cost/benefit ratio, better known in car circles as price/performance ratio.

I was just trying to raise some of the points I have considered in my choice of a car and its upgrades, and to be honest, even those probably won't keep me from getting a PROcede, or any other reasonably priced add-on that will allow me to leave even more people in my dust!

Hey, you don't have to explain yourself to me.

And hey, I just noticed that you got me saying hey. Damb.
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      05-18-2007, 05:12 PM   #31
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Hey, you don't have to explain yourself to me.

And hey, I just noticed that you got me saying hey. Damb.
Well hey, no problem...I call all my friends hey...
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      05-18-2007, 05:13 PM   #32
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Well hey, no problem...I call all my friends hey...
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      05-18-2007, 06:23 PM   #33
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Quote:
Originally Posted by shiv@vishnu View Post
Having a +/- 1psi short term oscillation just after spool up is pretty standard in a car tuned to provide max boost response and power.

Shiv
I was just going to say the same thing Shiv! It's all about spool, and oscilation and...... and more spool, ...max boost and......and.....ah hell, me like procede! Me go fast!

I think Fletch put it brilliantly when he said "c'mon guys.....it's all ballbearings nowadays!"

Last edited by normtrum; 05-18-2007 at 08:49 PM.
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