Quiet Turbos

[Ryan327]

So I have to ask since the turbos on my sport are pretty much undetectable to my ears, is there an intake silencer on these? Or is the stock air box just that good at deadening the sound.

My other car is a 2003 Pontiac Grand Prix GTP (supercharged) and it was pretty quiet stock by a CAI and some work made it scream. My wifes 2010 Audi A4 (similar sized) turbo is quiet with the stock airbox as well, but a diverter valve spacer at least gives you a nice BOV sound and a bit of noise.

Looking to see if anyone has found a way to actually let the turbos make a bit of noise, any kind of silencer delete. Or does anyone have any idea if an aftermarket short ram or CAI makes any noise difference.

I'm NOT looking for a ricer sounding chirping BOV, i just want to hear the turbo spool a bit.

And am I the only one that feels like after getting my sport that its much slower then I thought when I test drove one...i'm sure some of that is just something being new and unfamiliar, but it's just not very quick to me

 

[Fish4five]

I was told by Livernois that there were three things you could do to enhance the sound fo the turbos.

1st Down pipes with or without cats
2nd Aftermarket exhaust cat back
3rd CAI, their preference is the AIRAID

I personally have the airaid on order and should be here next week sometime so Ill keep you posted on how that sound. Your in the same boat as I am, I would like to at least hear them but no nothing overwhelming. Just enough so that you know its turbocharged. I dont plan on an exhaust or down pipes so hopefully this will get me what Im looking for.

 

[Ryan327]

I'll be very interested to hear your results! Let me know what you think.

 

[Fish4five]

And am I the only one that feels like after getting my sport that its much slower then I thought when I test drove one...i'm sure some of that is just something being new and unfamiliar, but it's just not very quick to me [/QUOTE]

Just a thought but are you running premium gas? Other than thay there shouldnt be a reason for the difference. I test drove two different ones and one was the one that I purchased. I couldnt tell any seat of the pants difference in the two.

Now after the Livernois tune there was a huge seat of the pants difference.

 

[Ryan327]

It's not that I think mine it's slower then the one I test drove just that I think they are slower then I remember as a whole. The way it feels to me is that at part throttle it's just blah, torque I'm feeling doesn't seem like what the dyno graphs show and only when you flog it wide open doors it start to deliver any real power. Just a bit disappointing when my other two cars deliver a lot of power at part throttle so you don't feel so abusive while driving it.

 

[Harley#356]

for the power thing, do you normally drive like a grandma? Then just occasionally flog it? The computers have adaptive learning and dials the program in to your driving habits, so if you drive like a granny majority of the time, then flog it every once in a blue moon, it won't respond quite the same as when you just reset the battery and the adaptive memory is cleared.

Ours just hit 1200 miles and to me it feels like it's loosening up a bit and feeling a bit faster being more broken in. Although I avoid going WOT when it's brand new off the lot. I don't baby them, but I don't flog them, so I still haven't gone WOT yet, but now that it's hit 1k I plan to see what it feels like wide open.

 

[Ryan327]

I've been driving easy for the most part with just some occasional 3/4 to full throttle runs as I'm just about to hit 1000 miles. I understand adaptive learning and how it effects shift points, but it's not going to dial back the max power.

Maybe its the power delivery that leaves it feeling too weak. Like when you are at 30-40 and it just feels outside of the powerband when you need to pass, or when it downshifts it feel like 2-3 seconds of delay before it finally grabs down enough gears and gets going.

Both of my cars feel much more violent when the power comes on so maybe the smoothness of the Explorer makes it feel that much different. The power of the explorer seems to come on late and i just never feel the torque much, has that freight train feel more to my seat of the pants dyno. I just never feel like there is ~350lb-ft pulling down low.

Overall I feel like the engine is noisy in all the wrong ways and just never really in the right gear.

 

[Kpwweb]

I can't say that mimics my experience.... You get on it in midrange---hang on! The tires get all squirmy and the steering wheel wants to jerk out of your hands. And that wasn't at WOT!

But we did win...



It's kinda like a Clark Kent and Superman scenario... Just depends on how bad you want it!!!

The motor has awesome mid-range torque.... Right where I need it... Just gotta learn where and when to stick the spurs to it.

 

[BlownGP]

It's not that I think mine it's slower then the one I test drove just that I think they are slower then I remember as a whole. The way it feels to me is that at part throttle it's just blah, torque I'm feeling doesn't seem like what the dyno graphs show and only when you flog it wide open doors it start to deliver any real power. Just a bit disappointing when my other two cars deliver a lot of power at part throttle so you don't feel so abusive while driving it.

If you are comparing it to the TQ a GTP has. It wont stand up. I have a GTP and its far from stock, but even with basic mods, there are not many stock cars even some V8s that have the low down TQ the L67 has.

Not only that, you will have a little turbo lag with turbos's, the roots blowers on GTP's is belt driven and you're in instant boost when you got WOT.

Dont forget its 1000lbs heavier than a GTP too.

 

[Ryan327]

I agree about the L67. I'm fairly up there in mods.

All the basic stuff, intercooler 3.2 pulley, headers, full exhaust, high ratio rockers. I just con't bare to sell/trade it so I kept it as my fun backup car. But even the little Audi's 2.0t makes the Ecoboost feel like a marshmellow. Theres some lag on the Audi but when it boosts it's like 333lb-ft of awesomesauce

 

[BlownGP]

I agree about the L67. I'm fairly up there in mods.

All the basic stuff, intercooler 3.2 pulley, headers, full exhaust, high ratio rockers. I just con't bare to sell/trade it so I kept it as my fun backup car. But even the little Audi's 2.0t makes the Ecoboost feel like a marshmellow. Theres some lag on the Audi but when it boosts it's like 333lb-ft of awesomesauce

Yeah, those little 2.0T make some big power with a tune/chip..

You on ClubGP. I've had my GTP for a long time. I too have a ZZP intercooler, headers, rockers, 2.8 pulley, exhaust etc.. I love it and doubt I will ever sell it.

 

[broken strut]

Yawn

 

[JohnBoyToo]

Having just traded a 2011 tuned audi in - I vehemently disagree ...

stock 211 hp and tuned 270-280 hp is NOT anything gangbusters IMHO....
even tuned and all wheel drive boosted launches would barely break 6 seconds...

I brought it to the track once and felt embarrassed !

guess it's all relative - carry on

 

[BlownGP]

Having just traded a 2011 tuned audi in - I vehemently disagree ...

stock 211 hp and tuned 270-280 hp is NOT anything gangbusters IMHO....
even tuned and all wheel drive boosted launches would barely break 6 seconds...

I brought it to the track once and felt embarrassed !

guess it's all relative - carry on

No its not, but in that light little car it's not bad.. I hoping he was thinking he could whip up on mustangs and camaro's. lol

 

[Ryan327]

I'm not saying the Audi is the fastest car I've ever driven, but being a six speed manual it's always in the gear i want, and it's torque comes on much more violent and feels like a lot more then the explorer. Now it really does gasp a bit on the top end, but the areas that I spend the most time it in feels much stronger.

The GTP is a lot the same way, mountains of power down low and in the mid range, but gasps up top.

The Explorer feels like the total opposite end, comes on kinda slow and then really starts to pull on the top end, the only thing is, I don't really spend a lot of time turning the gears inside out and would much rather have improved low/midrange response both in the power delivery and the transmission kick downs.

I'm not claiming the car is junk or anything so everyone try to not get upset, just that i'll probably have to put a tune on it here soon just to meet my driving expectations.

 

[Lowelife]

Check out the dyno graphs on Livernois web site. I think you will see what you are feeling in the stock graph. Then look at their tuned graph and see where all the power is made.

 

[plumbago]

Does'nt seem quite as snappy as when you drove it off the lot? One of two things: Moisture build up in the Intercooler, and or you need to do a Master reset, to snap up the transmission..........I'm betting on the trans relearn. Happens all the time with the new Mustangs, and the reset to allow the trans to start over, always seems to fix it......best regards Plum

 

[Ryan327]

No, not as fast as I thought it was when I test drove one. I'll chalk that up to probably just being a new and unfamiliar vehicle / new car shopper kool-aid drinking.

 

[JohnBoyToo]

It may be as simple as the other cars you are comparing to are single turbos...

the previous iterations of turbo cars I've played with were either/or....
that is, quick responding with moderate boost
or LARGE bore slow responding with HIGH boost....they had no boost until a certain point and then they would explode!

that is UNLESS you went to twin turbos (which some did in the dezzle world )
one quick response smaller turbo and one LARGE high hp turbo...

like I said though, the knock against the big ones were nothing at first and then KABOOM it would light off and be almost uncontrollable...

the tuning for the twin turbo ExSport may be such that the are trying to smooth that on or off switch somewhat

and you are right - nothing like custom tuning to get it to perform like YOU want YOUR car to perform....

personally it's ok for us as the wife just wants an "appliance" she can drive to work...
and I don't drive it enough to worry about it

 

[Ryan327]

I know what you are saying John and I'm definitely a car guy and been mod'ing for years now. I think you really hit the nail on the head more with the fact that I think ford probably wanted the power delivery to be more tame.

The Grand Prix GTP is a roots style supercharger which can make the spool time of even the fastest turbo feel slow. The Audi uses a K03 which is pretty much the same size as the turbo's on the sport but with more displacement turning it