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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 > Installed V2 last night - Did yours feel slower?



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      01-09-2008, 03:00 PM   #45
ets335
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So what happened to M3to335 and his car? Did you find what was wrong? The BOV popped off of mine because the BOV itself was not clamped down enough. Also with a Greddy BOV you will have to tune that so the air releases correctly.
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      01-09-2008, 07:56 PM   #46
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Quote:
Originally Posted by ets335 View Post
So what happened to M3to335 and his car? Did you find what was wrong? The BOV popped off of mine because the BOV itself was not clamped down enough. Also with a Greddy BOV you will have to tune that so the air releases correctly.
Huh? My car is fine. The BOV top screw was leaking a little when I first installed V2 a while back. Simple thread tape fixed that. Then I checked the BOV valve and it wasnt shutting completely. After dissasembling it, and giving it a squirt of WD-40 its 100% perfect again. No biggy at all.
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      01-09-2008, 08:08 PM   #47
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Quote:
Originally Posted by pikkashoe View Post
Check your torque settings using the Vishnu software, make sure they start at 100% for the range between 1000 to 2000 rpms, then it should ramp down then ramp back up, finishing at 100%. Also check your valet mode rpm settings, they should be at 300 rpms.
Is this the best way to get that neck jolting torque down low? I am not going to be drag racing this car but do love the 0-80mph range.....
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      01-09-2008, 09:08 PM   #48
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Quote:
Originally Posted by yahtzee View Post
Is this the best way to get that neck jolting torque down low? I am not going to be drag racing this car but do love the 0-80mph range.....
I think Shiv warned against having different values across the rpm range.
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      01-09-2008, 10:56 PM   #49
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Quote:
Originally Posted by Sniz View Post
I think Shiv warned against having different values across the rpm range.
So what is the point of being able to alter them at different rpm's?
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      01-09-2008, 11:20 PM   #50
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Quote:
Originally Posted by pikkashoe View Post
Check your torque settings using the Vishnu software, make sure they start at 100% for the range between 1000 to 2000 rpms, then it should ramp down then ramp back up, finishing at 100%. Also check your valet mode rpm settings, they should be at 300 rpms.
Quote:
Originally Posted by yahtzee View Post
Is this the best way to get that neck jolting torque down low? I am not going to be drag racing this car but do love the 0-80mph range.....
I thought 100% settings were not recommended (or even warned against) unless you're running 100% race gas, and then even you have to be really careful. I must be missing something. V2 default settings are 90% across the board, right?
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      01-09-2008, 11:21 PM   #51
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Quote:
Originally Posted by yahtzee View Post
So what is the point of being able to alter them at different rpm's?
Shiv's worked with some people and authorized varying torque settings, I believe. But I think for the general public, we're supposed to use one value across the board.
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      01-10-2008, 11:49 AM   #52
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Shiv-

Can you chime in here? Looking for a way to get some better low end torque.
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      01-10-2008, 05:15 PM   #53
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Agreed.
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      01-10-2008, 05:20 PM   #54
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Originally Posted by M3to335 View Post
First off, let me say the installation was very easy. Nothing special going on there. I had some issues connecting with my laptop, then finally it was able to load up the firmware and 2.0.1 map.

I never test drove it untill this morning on the way to work. No codes, no lights, very smooth running. I had to wait about 8 min for the temp to get up since its 37deg here right now. After that, I went to my typical "stomp on it" spot and ran through the gears as I normally would.

If definately feels slower. Smooth, but slower. In fact its not doing the nasty rear end kick & walk that it used to do into second gear.

No boost leaks or anything, since the gauge is still showing 14.5 (ish) Does it take time to adjust or something?

Ive heard some folks unhooked the battery. Wasnt that after running it for a while and the ecu adapting? It hasnt had any time to adapt to anything yet since Ive only done 2 pulls. (1st from 10-70 and then a 3rd gear pull).

One more thing. Power comes on noticeably different when just strolling through the neighborhood slowly. I shift at very low RPMS when puttering around there. Before it would be sluggy (since the rpms were so low) then the power would surge on strong until the next slow speed shift. Just an observation, but not necessarily indicating anything. Heck, its probably a good thing.

Thanks
GOt mine installed today. It is still adapting but it did not feel slower at all than the 1.47. Felt faster and smoother.
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      01-10-2008, 05:22 PM   #55
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Quote:
Originally Posted by yahtzee View Post
Shiv-

Can you chime in here? Looking for a way to get some better low end torque.
Contrary to popular believe, v1.47 did not offer superior low end to v2.0.2. What it did do, however, was spike momentarily a bit when you first got on the throttle. Not unlike any other tuning solution that bypasses one solenoid and doesn't control the solenoids directly. v2.0.2 offers just as much stable low end torque as v1.47. It just doesn't have the jolt than v1.47 had by "virtue" of it's inferior boost control.

Shiv
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      01-11-2008, 10:12 PM   #56
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Originally Posted by Laszlo View Post
Don't take this the wrong way guys, but how in the world do you have the patience to deal with all of this confusion, let alone disappointments and downright frustrations with this tuning software? I know these boards "dislike" Dinan... but after reading this, thank God I went with Dinan which was a one-hour reflash plug and play experience.


You'll never know or understand until you have PROcede in your car. Boo for you!
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