E46 M3 L.I.P. Syndrome

[UdubBadger]

So I am apparently experiencing Low Intake Pressure Syndrome on my car. The engine isn't producing as much power as it can because there isn't enough airflow going through the manifold.

Anyone ever hear of this? Shop here in Indy is trying to take care of it, should have some more info in the afternoon. :fingerscrossed

[ryankokesh]

Sorry to hear that...

That actually came up when I was researching 4Runners... I think Toyota might have come out with a solution for 3rd gens, but it was pretty rare. I don't know about M3s, but I don't think I've never known anyone who experienced it in a ZHP. Hope they figure something out for ya... :dunno

[az3579]

Hmm. What state is the air filter in? Perhaps cleaning/replacing?

Also, is the plate on any of the throttle bodies sticking or not moving properly?

Vacuum leak in the intake system or perhaps one or more bad throttle body gaskets?

I'm trying to think of this logically...


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[cakM3]

Seth, I've never heard of or seen Low Intake Pressure Syndrome for our M3's. Interested in finding out what occurred to your ///M.... sorry I don't have any inputs to this issue as I have never experienced this on my ///M....

[UdubBadger]

Maybe, no idea


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[ryankokesh]

Man, you just can't catch a break with this hoopty.

[UdubBadger]

Lol Hoopty


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[UdubBadger]

I'm still at the hotel wasting time, I'll update when I hear something. Hopefully good news.


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[cakM3]

got my fingers crossed for good news Seth!

[UdubBadger]

Thanks Chuck


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[KevinC]

7+ years of S54 ownership and I've never heard of this issue. Curious to see what the outcome is.

[UdubBadger]

Still waiting for an update


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[slater]

all good things come to those who...

;)

peter

[UdubBadger]

all good things come to those who...

;)

peter

Yeah you're right I guess. :)


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[UdubBadger]

Ok well the tech figured out the issue with the low intake pressure.

Apparently it wasn't enough airflow to properly go HAM so after some new weird looking parts were installed the car is good to go now they say.



http://tapatalk.imageshack.com/v2/15/03/17/eea64be6db8b9edb0199df5a62983ba8.jpg


I'll monitor it closely to see if this fixes it.


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[slater]

is that an F ing supercharger???

http://store.activeautowerke.com/products/active-autowerke-e46-m3-prima-supercharger-kit-complete-install-pack

i see what you're doing here. :thumbsup

peter

[Pip]

Asshat. Now go HAM on the way home.

[UdubBadger]

Asshat. Now go HAM on the way home.

Lol I'm 3 hrs late leaving here so I'm gonna have to!


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[az3579]

So is the problem actually fixed or was that a joke as well? :p

[UdubBadger]

No problem BP it was a tease


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[WOLFN8TR]

Shit Seth is that your ///M!!!! :theman

[WOLFN8TR]

LETS COMPARE.....HMMMMM


http://tapatalk.imageshack.com/v2/15/03/17/eea64be6db8b9edb0199df5a62983ba8.jpg

[BADCLOWN]

That's a helluva low pressure fix!


Sexy stuff, any numbers?

[Oli77]

You. Da. Man! Couldn't wait till April first, could you?

[UdubBadger]

That's a helluva low pressure fix!


Sexy stuff, any numbers?

Driving her home right now so nothing yet. The description says 480+ at the crank, but that doesn't account for catless headers.

Some numbers I do have right now are I don't whopping 37 miles to the gallon doing 80 miles an hour over the last 52 miles. I have half a tank of gas left in my range since it's 250 miles till empty. http://tapatalk.imageshack.com/v2/15/03/17/8573ce12081d1d926a8feff480bea938.jpg


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[BADCLOWN]

So your mpg went up? That seems like a hefty improvement for the highway. Very cool stuff

[az3579]

Driving her home right now so nothing yet. The description says 480+ at the crank, but that doesn't account for catless headers.

Some numbers I do have right now are I don't whopping 37 miles to the gallon doing 80 miles an hour over the last 52 miles. I have half a tank of gas left in my range since it's 250 miles till empty. http://tapatalk.imageshack.com/v2/15/03/17/8573ce12081d1d926a8feff480bea938.jpg


GoingHAM mobile

WTF?? I thought that supercharger was meant for another car in the shop? Are you serious?


So your mpg went up? That seems like a hefty improvement for the highway. Very cool stuff

When you change injectors, the computer doesn't calculate MPG properly, so whatever is in the picture is totally false.
My E30 did the same thing when I put in the S50... it thought I was really doing about 40mpg when in reality I was doing between 25-30. lol

[UdubBadger]

Good point


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[WOLFN8TR]

Dam...[emoji13]

[UdubBadger]

I love how Dane is avoiding this thread


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[BADCLOWN]

goooooooootcha.


what a jerk for posting such good engine porn.

definitely like the CF intake system that was on the car prior as an NA motor. good lookin'

[cakM3]

congrats on the supercharger Seth....bet your ///M is a lot more fun to drive now :biggrin

[Pip]

I'm formally requesting more exhaust videos

[UdubBadger]

Lol will do Sean.


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[danewilson77]

No problem BP it was a tease


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Win.

"No flamesuit required"

[danewilson77]

Obtw, you're ghey for actually im-ing me about the low flow issue.

"No flamesuit required"

[Rovert]

Seth must have L.I.S. Syndrome now!

[UdubBadger]

Obtw, you're ghey for actually im-ing me about the low flow issue.

"No flamesuit required"

Hahahahahahaha


I was tying to get you to go through all the research on finding a fix lol


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[Rovert]

Oops. LIS = Long Input Shaft Syndrome? Or does it grow the two buddies with that power? It must be exciting. LOL

[danewilson77]

Yeah...I won.

"No flamesuit required"

[Rovert]

LOL. This is great

[UdubBadger]

Oops. LIS = Long Input Shaft Syndrome? Or does it grow the two buddies with that power? It must be exciting. LOL

Rofl


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[UdubBadger]

Yeah...I won.

"No flamesuit required"

Did you Dane? Did you?


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[az3579]

I am so effing confused right now.

[UdubBadger]

What's so confusing. You got trolled, my car got a new toy and Dane thinks he won.

/thread


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[WOLFN8TR]

What's so confusing. You got trolled, my car got a new toy and Dane thinks he won.

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Ha Ha...[emoji2]

[slater]

What's so confusing. You got trolled, my car got a new toy and Dane thinks he won.

/thread


GoingHAM mobile

LOL.

that was a good prank, seth. :)

peter

[az3579]

Smh


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[ryankokesh]

I told you that mpg was wrong, lol... never believe good 'ole ryan do ya...

Do you have any tread left on the blizzaks?

[UdubBadger]

I told you that mpg was wrong, lol... never believe good 'ole ryan do ya...

Do you have any tread left on the blizzaks?

To be fair in theory increasing HP should also increase fuel economy.

Lol yeah they were mush driving down Monday though


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[az3579]

To be fair in theory increasing HP should also increase fuel economy.

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I am very close to saying this is impossible, but I'd like to ask for examples of this being true before I make an idiot of myself...
This is totally the inverse of what is logical lol

[wsmeyer]

It's true if you're increasing HP by increasing efficiency - extracting more energy out of the gas. Gaining HP simply by forcing more air and fuel into the engine isn't going to help your mpg

[az3579]

Gaining HP simply by forcing more air and fuel into the engine isn't going to help your mpg

This. Adding HP is always done by using this method.
Creating more efficient engines; that's what manufacturers have done over the last who-knows-how-many years. Cars of today get better mileage with more horsepower than cars of 30 years ago. :thumbsup

[wsmeyer]

Yeah but they didn't do it simply by forcing more air and fuel in.

HP has gone up
MPG has gone up
Displacement has gone down
Emissions have gone down

The only way to achieve all of that is to increase the amount of energy extracted from the fuel.

[UdubBadger]

It's true if you're increasing HP by increasing efficiency - extracting more energy out of the gas. Gaining HP simply by forcing more air and fuel into the engine isn't going to help your mpg

this is what I was getting at BP. But yeah you are right, doing it by more fuel and air isn't going to raise it that much. However there should be a bump over stock because other components are upgraded, engine cooling is higher and other systems are made to work more fluidly. This is the same principle we use at EC to tune cars. Bump in power but also see bump in MPGs (if even only 2-3 max).

[Rovert]

When I had my ZHP tuned, the tuners leaned out the mixture to give more efficiency and power. But the tuner couldn't do too much since the cooling system isn't upgraded to handle increased engine temperature and engine components not made for increased pressure, to my knowledge. If we had massive and reliable cooling system we could all be injecting less fuel and more air for hotter fiery explosions! LOL

[UdubBadger]

When I had my ZHP tuned, the tuners leaned out the mixture to give more efficiency and power. But the tuner couldn't do too much since the cooling system isn't upgraded to handle increased engine temperature and engine components not made for increased pressure, to my knowledge. If we had massive and reliable cooling system we could all be injecting less fuel and more air for hotter fiery explosions! LOL

This is part of the magic tweaking EC does in tuning ;)


Granted it's with stock parts but some adjustments can help maximize the gains had and efficiency without going rich on fuel.


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[UdubBadger]

20709


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