[TGNY 335]

Not sure if the Tuner actually uses the VANOs tables and Spool mode tables, but those right there alone if manipulated properly would net some good gains in the areas you want.

I'm new to this site, but i haven't seen much mention of people actually using the VANOS to improve the vehicle.

VVT(BMW calls it VANOS) Tuning opens up a lot of things in terms of power delivery and overall responsiveness, and in a turbo car, boost onset.

[bradsm87]

Originally Posted by NocturnalEVO

Thank you all for the replies, but I think some of you are not reading what I wrote..

I want quicker spool first and foremost, added midrange would be great.

BUT the challenge is to do it WITHOUT the following:

NO catless dp's
NO 85
NO meth


As for why I don't want the catless dp's, I don't want the increased sound and especially not the raspiness AT ALL. I've heard plenty of different combo's of cattless/catted dp's in person, and am not a fan. Like I said, i'm not after power as much as I am quicker spool. Right now my current exhaust setup is absolutely perfect. I won't change a thing about it. It's loud where I want it to be and quiet where I want it to be, and when you do hear it it's freakin beautiful sounding lol.

It just sucks that dp's are the only way to go, to get quicker spool.

Putting secondary cats back in and using catless downpipes gets you best of both worlds. Secondary cats take care of rasp but they're far enough downstream that performance isn't affected anywhere near as much as stock downpipes.

[Fundguy1]

Inlets, catless, lpfp and e85.

[Brule]

In reply to your initial question, you can just ask ptf to change your tune.
If you cant get any noticeable spool and midrange contact buraq.

I've had both tunes on rbs and buraqs tune had alot mor torque down Low.

If ptf doesn't get it how you want its worth trying buraq

[CarAbuser]

Originally Posted by NocturnalEVO

I'm not sure how to post the direct log itself to show up here, but here's links to the last 3 datalogs I did a few days ago:

Log 1:
http://datazap.me/u/nfaridi84/n54-cu...og=0&data=1-22

Log 2:
http://datazap.me/u/nfaridi84/n54-cu...og=1&data=1-22

Log 3:
http://datazap.me/u/nfaridi84/n54-cu...og=2&data=1-22

I would say there's room for improvement there. It's very hard to compare logs accurately as people start pulls at different RPMs and graphs will look differently between users as sample rates vary depending on how many parameters you are sampling.

You could ask PTF to enable spool mode and make the PID more aggressive. The only other thing would be VANOS. I know BuraQ makes some nice changes in his maps that help build boost a little quicker, I'm sure PTF have something similar already.

It would also be worth putting new vacuum lines in if the car is getting old. It doesn't look like you have any mechanical issues as it does build boost reasonably well but I noticed a sharp improvement at low RPMs after replacing a few tired lines.

[Sgop335]

Originally Posted by NocturnalEVO

I'm not sure how to post the direct log itself to show up here, but here's links to the last 3 datalogs I did a few days ago:

Log 1:
http://datazap.me/u/nfaridi84/n54-cu...og=0&data=1-22

Log 2:
http://datazap.me/u/nfaridi84/n54-cu...og=1&data=1-22

Log 3:
http://datazap.me/u/nfaridi84/n54-cu...og=2&data=1-22

Bunch of timing corrections too.

[mikeseli]

Originally Posted by NocturnalEVO

Thank you all for the replies, but I think some of you are not reading what I wrote..

I want quicker spool first and foremost, added midrange would be great.

BUT the challenge is to do it WITHOUT the following:

NO catless dp's
NO 85
NO meth


As for why I don't want the catless dp's, I don't want the increased sound and especially not the raspiness AT ALL. I've heard plenty of different combo's of cattless/catted dp's in person, and am not a fan. Like I said, i'm not after power as much as I am quicker spool. Right now my current exhaust setup is absolutely perfect. I won't change a thing about it. It's loud where I want it to be and quiet where I want it to be, and when you do hear it it's freakin beautiful sounding lol.

It just sucks that dp's are the only way to go, to get quicker spool.

I did not notice any rasp when I went with downpipes. The turbine section of the turbo prevents rasp if you maintain the stock catback.

[autoart]

What about high flow CATTED downpipes?

[NocturnalEVO]

Originally Posted by autoart

What about high flow CATTED downpipes?

I have heard some and they did have a little rasp, they sounded a hell of a lot better than catless though.

I am going to start looking into them more though, to see if perhaps there's a good one out there that makes sufficient power and doesn't sound bad.

[B.M.W.]

It's not a great idea, but you could go the route of Volvo & have an air compressor that helps eliminate turbo lag.

No idea how to implement this in the N54, but it's a wild idea.

[NocturnalEVO]

Lol yea thats a bit too wild for me.

I was looking for simpler bolt-on solutions without spending a lot of $.

[csu87]

There isn't one other than inlets and dps.

[NocturnalEVO]

I'm getting mixed reviews on the inlets.

I'm hearing from some people that it wont help with spool and doesn't net much power results on stock turbo's.

Then from other people I'm hearing that it greatly helps with spool even on stock turbo's.

Gotta spend more time doing research on those.

[bradsm87]

Inlets will not help spool. Tuning will be the biggest gain followed by switching to secondary instead of primary cats.

[csu87]

Inlets will help spool. They remove a restriction on airflow

This is true for all turbos

[924er]

Originally Posted by NocturnalEVO

I'm getting mixed reviews on the inlets.

I'm hearing from some people that it wont help with spool and doesn't net much power results on stock turbo's.

Then from other people I'm hearing that it greatly helps with spool even on stock turbo's.

Gotta spend more time doing research on those.

The fastest stock turbo n54 is pushing like 550whp with inlets so idk about that

OP, you should really consider getting downpipes. It's not that much louder, most people think my car is stock. If anything, it just sounds like a louder stock car. Don't base this off YouTube videos and go for it.

Also, e85 and a LPFP upgrade will yield crazy midrange power.

[NocturnalEVO]

Originally Posted by 924er

The fastest stock turbo n54 is pushing like 550whp with inlets so idk about that

OP, you should really consider getting downpipes. It's not that much louder, most people think my car is stock. If anything, it just sounds like a louder stock car. Don't base this off YouTube videos and go for it.

Also, e85 and a LPFP upgrade will yield crazy midrange power.

Thank you for the insight.
I may start asking around some of the locals to hear their exhaust setups w/dp's.
I do have one friend who has AR Design catless dp's, stock secondary cats, and 335is mufflers, and his is already FAR louder than mine and raspy at certain speeds.

As for the E85, i would LOVE to, but then I don't want to lose the mpg's as well as worry about finding e85 as I do a lot of traveling. I know its much more easier to come by nowadays but still not something I want to have to worry about.

[Jklad]

Originally Posted by NocturnalEVO

Thank you for the insight.
I may start asking around some of the locals to hear their exhaust setups w/dp's.
I do have one friend who has AR Design catless dp's, stock secondary cats, and 335is mufflers, and his is already FAR louder than mine and raspy at certain speeds.

As for the E85, i would LOVE to, but then I don't want to lose the mpg's as well as worry about finding e85 as I do a lot of traveling. I know its much more easier to come by nowadays but still not something I want to have to worry about.

You need to hear in person a car with cat less dp, stock secondary cats, and stock cat-back. It's just barely different than with stock dp.

It will sound different than your friend with the is mufflers.

[nitehawk]

Originally Posted by Jklad

You need to hear in person a car with cat less dp, stock secondary cats, and stock cat-back. It's just barely different than with stock dp.

It will sound different than your friend with the is mufflers.

OP has PE exhaust

[NocturnalEVO]

Originally Posted by nitehawk

OP has PE exhaust

Yes, and I absolutely LOVE it.

[jippii ensio]

Originally Posted by csu87

Inlets will help spool. They remove a restriction on airflow

This is true for all turbos

If you do the math you will find that the stock inlets are not yet a restriction at these power levels, i.e. when turbos spool i.e. at quite low revs. So, inlets are not the solution for OP for better spool. Using spool mode in tuning is the solution.

[Jnat]

Vanos tuning can help. How much timing is being run?