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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 about turbo lag



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      06-05-2007, 11:48 PM   #1
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PROcede question about turbo lag

Does installing PROcede make the minimal turbo lag more noticable?

I like what I am hearing about the gains, but I also love the very minimal lag here is on this car stock.

Any comments?
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      06-06-2007, 12:05 AM   #2
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The lag is a little more...but while it's lagging, it's building that gob of torque to knock you back into your seat...

you'll love it more trust me
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      06-06-2007, 12:14 AM   #3
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^^will i love it as much as the girl under ur user name?
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      06-06-2007, 12:17 AM   #4
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I've got to be honest, I never felt any turbo lag at stock, and I certainly don't feel any with my procede. But keep in mind I have a saab 9-3 that feels like the turbo kicks in 5 minutes after I pull into the garage, so maybe I'm not the best judge.
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      06-06-2007, 12:17 AM   #5
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Quote:
Originally Posted by BMWPower06 View Post
^^will i love it as much as the girl under ur user name?

errrr that's up to you...to me, a car will be just a car...

but a warm, nicely groomed vagina is another thing
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      06-06-2007, 12:19 AM   #6
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Quote:
Originally Posted by normtrum View Post
I've got to be honest, I never felt any turbo lag at stock, and I certainly don't feel any with my procede. But keep in mind I have a saab 9-3 that feels like the turbo kicks on 5 minutes after I pull into the garage, so maybe I'm not the best judge.

Coming from a high performance high revvin' N/A car you'll feel the world of difference...

i had an M3 before...and when i switched over, for the first few days...the lag drove me nuts...but after i got used to it it was fine...

then when i drove an M3 again... i forgot how perfect the S54 engine and tranny was..
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      06-06-2007, 12:59 AM   #7
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Quote:
Originally Posted by normtrum View Post
I've got to be honest, I never felt any turbo lag at stock, and I certainly don't feel any with my procede. But keep in mind I have a saab 9-3 that feels like the turbo kicks in 5 minutes after I pull into the garage, so maybe I'm not the best judge.
Yah, sounds like your biased. Need to have a reference point. I drove my Uncle's Mitsu VR4 years back and I can still remember the wait for the turbo to spool. Stock: I never felt any turbo log with the 335. With the Procede: there is definitely a slight lag but the wait is definiutely worth it.
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      06-06-2007, 01:02 AM   #8
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The only reason you don't feel much lag with the stock 335 is because the car is detuned 50-100lbft in the 2700-6500rpm range. Once you tune the car and get all that extra power, you do notice a surge in power between 2000rpm and 2700rpm. Sometimes no lag means no power

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      06-06-2007, 01:10 AM   #9
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Quote:
Originally Posted by Spool View Post
errrr that's up to you...to me, a car will be just a car...

but a warm, nicely groomed vagina is another thing
lmao.
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      06-06-2007, 01:21 AM   #10
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I like the sudden surge of power. It just adds it to the fun factor.. especially for the passengers.
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      06-06-2007, 01:27 AM   #11
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Quote:
Originally Posted by jon@themshop View Post
I like the sudden surge of power. It just adds it to the fun factor.. especially for the passengers.

If you like to drive on twisty roads as much as i do...this kind of unpredictable power is scary...

say you downshift to 2nd at around 30mph right before you enter a tight corner, car goes in, then bammm...it kicks in and the back gives out, ur sliding towards the guardrail, you counter steer to straighten the car out then it drifts...

it's scary, but what a rush....
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      06-06-2007, 07:29 AM   #12
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Quote:
Originally Posted by jon@themshop View Post
I like the sudden surge of power. It just adds it to the fun factor.. especially for the passengers.
I agree. My wife was like WTF did you do to the car!
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      06-06-2007, 08:39 AM   #13
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Quote:
Originally Posted by Spool View Post
If you like to drive on twisty roads as much as i do...this kind of unpredictable power is scary...

say you downshift to 2nd at around 30mph right before you enter a tight corner, car goes in, then bammm...it kicks in and the back gives out, ur sliding towards the guardrail, you counter steer to straighten the car out then it drifts...

it's scary, but what a rush....
This post is a joke, right If you actually find the power scary you need to attened a driving school ASAP!
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      06-06-2007, 10:37 AM   #14
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Quote:
Originally Posted by shiv@vishnu View Post
The only reason you don't feel much lag with the stock 335 is because the car is detuned 50-100lbft in the 2700-6500rpm range. Once you tune the car and get all that extra power, you do notice a surge in power between 2000rpm and 2700rpm. Sometimes no lag means no power

Shiv
So let me see if I am getting this right.

From the time you stab the pedal down, is there a greater lag for the turbos to spool up? OR is it the same lag time (spool time) as stock just with a more pronouned thrust forward due to the increase in TQ & HP?

In my head, I don't see how PROcede could alter the rate at which the turbos spool up, but the preceived lag is just with a greater thrust forward.

If that is the case, then thats no biggie, but what I don't want is a greater spool up time from the turbos.
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      06-06-2007, 10:48 AM   #15
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From the dyno curves I notice that there seems to be a bit less power below 2k rpm with the PROcede, and a lot more power from 2.5k on. So there is a more pronounced power shift, a less flat curve.

Is the Procede 'peaky' and hence more difficult to drive? Does not look that way to me. But that will have to await seat-of-the-pants testing.
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      06-06-2007, 11:05 AM   #16
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Quote:
Originally Posted by Cadence View Post
This post is a joke, right If you actually find the power scary you need to attened a driving school ASAP!


Read the post again retard...


i said it's scary when the power is UNPREDICTABLE, and it kicks in and gobs of torque send you sideways toward the guardrail...


okay i'll attend driving school, if you attend an English class.... attened is not a word...
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      06-06-2007, 03:39 PM   #17
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Quote:
Originally Posted by Spool View Post
If you like to drive on twisty roads as much as i do...this kind of unpredictable power is scary...

say you downshift to 2nd at around 30mph right before you enter a tight corner, car goes in, then bammm...it kicks in and the back gives out, ur sliding towards the guardrail, you counter steer to straighten the car out then it drifts...

it's scary, but what a rush....
+1
I went and did some gymkana type backroads this weekend using 1st, 2nd, and 3rd gear only and experienced what you are talking about. I have the Steptronic but not much difference in what I observed, the unpredictability/disconnection of throttle/turbo response makes it a hair raising experience compared to my son's M3.
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      06-06-2007, 03:52 PM   #18
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Quote:
Originally Posted by stressdoc View Post
From the dyno curves I notice that there seems to be a bit less power below 2k rpm with the PROcede, and a lot more power from 2.5k on. So there is a more pronounced power shift, a less flat curve.

Is the Procede 'peaky' and hence more difficult to drive? Does not look that way to me. But that will have to await seat-of-the-pants testing.
There is no less power below 2000rpm with the procede. There is only more power above 2500rpm because boost continues to build and build (until it reaches it peak at 2800-3000rpm) whereas it levels off with the stock ecu early.

Shiv
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      06-06-2007, 11:22 PM   #19
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Quote:
Originally Posted by shiv@vishnu View Post
There is no less power below 2000rpm with the procede. There is only more power above 2500rpm because boost continues to build and build (until it reaches it peak at 2800-3000rpm) whereas it levels off with the stock ecu early.

Shiv
SO Shiv,

What would you say is more true?

1. there is greater turbo lag and spool up time with PROcede

OR

2. There is a greater perceived turbo lag due to additional HP and TQ

Does it actually take the turbos longer to spool up with PROcede?
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      06-06-2007, 11:31 PM   #20
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Quote:
Originally Posted by TRZ06 View Post
SO Shiv,

What would you say is more true?

1. there is greater turbo lag and spool up time with PROcede

OR

2. There is a greater perceived turbo lag due to additional HP and TQ

Does it actually take the turbos longer to spool up with PROcede?
The rate of spool is the same between stock and PROcede. With the procede, the boost targets are higher so the period of spool is a fraction of a second longer. That's about as clear as I can be I'm afraid.

Shiv
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      06-06-2007, 11:36 PM   #21
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Quote:
Originally Posted by Spool View Post
If you like to drive on twisty roads as much as i do...this kind of unpredictable power is scary...

say you downshift to 2nd at around 30mph right before you enter a tight corner, car goes in, then bammm...it kicks in and the back gives out, ur sliding towards the guardrail, you counter steer to straighten the car out then it drifts...

it's scary, but what a rush....
yeah just like dumpin a massive load in a nicely trimmed box!
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      06-06-2007, 11:39 PM   #22
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Quote:
Originally Posted by shiv@vishnu View Post
The rate of spool is the same between stock and PROcede. With the procede, the boost targets are higher so the period of spool is a fraction of a second longer. That's about as clear as I can be I'm afraid.

Shiv
Thanks Shiv, I sent you a PM
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