I4 Gen6 Engine sound - Toyota Nation Forum : Toyota Car and Truck Forums

Zonsolo · 03-17-2009, 07:21 AM

Why does a stock I4 sound like a raspy fart can at part throttle? Its not the exhaust, the sound definitely comes from the engine compartment. It sounds ok at WOT, and acceptable at very light throttle, but just god awful at around 25-50% throttle (guessing). It is so embarrassing that when I have people in the car I have to purposely drive around like a grandpa to keep it from sounding like that.

I had a 2005 LE before and did not sound like this. The 2005 sounded horrible, but more like a junker instead of a fart can of my 2009.

Does a CAI help? How about pulling that nappy tin heat shield off the exhaust manifold?

How can I make it sound smoother?

Even my old 2.5L 4-banger in an old 86 Buick I had sounded better than this.

***PhatRoyale*** · 03-17-2009, 07:36 AM

Quote:

Originally Posted by Zonsolo

Why does a stock I4 sound like a raspy fart can at part throttle?

That almost made me spill my coffee.

Redline_Me · 03-17-2009, 09:46 AM

I get a deeper sound out of mine, but i have a K&N drop in and i removed that netting off the top part of the inside of the airbox.

GT-R · 03-17-2009, 10:00 AM

Both of my Camrys (LE and SE) sound great, it's got that mean roar, even when I pushed it all the way to 5-6 RPM.

jayrguidaben · 03-17-2009, 10:40 AM

Quote:

Originally Posted by Redline_Me

I get a deeper sound out of mine, but i have a K&N drop in and i removed that netting off the top part of the inside of the airbox.

i say that too. what is that for?

Tobeit · 03-17-2009, 10:50 AM

....deep, roaring, raspy fart can sound from a stock I4 ????

***lammydi*** · 03-17-2009, 10:57 AM

Quote:

Originally Posted by Tobeit

....deep, roaring, raspy fart can sound from a stock I4 ????

GT-R · 03-17-2009, 11:14 AM

Lammy's car sounds like a Corvette....

njerald · 03-17-2009, 11:19 AM

Must be just the OP's car.

It learned his driving style...................and mimics it.

***lammydi*** · 03-17-2009, 12:01 PM

Quote:

Originally Posted by GT-R SE

Lammy's car sounds like a Corvette....

What do you mean "sounds" like a Corvette? If you pop the hood it is a.......................

**PRINCESS PEACH** · 03-17-2009, 02:22 PM

Quote:

Originally Posted by njerald

Must be just the OP's car.

It learned his driving style...................and mimics it.

ahahahahha +1

My car roars, sputters, pops, spits gas, fire, smoke, and other things. Its loud and noisy... It learned my driving style.. And mimics it

Dna_splice · 03-17-2009, 02:24 PM

My i4 is a little chattery
But overall it doesn't sound like
A 99cent store car

Zonsolo · 03-17-2009, 09:50 PM

Haha love the humor guys

But seriously I know its no Corvette.

Its by far the worst sounding 4 I think I've ever heard (except maybe one with a rod knocking or valve stuck).

Guess I'll try a K&N and see if it clears its throat a little. I'm not looking for a roar... I'm looking for a smoother non-tinny rev.

Tobeit · 03-17-2009, 09:53 PM

Quote:

Originally Posted by Zonsolo

Haha love the humor guys

But seriously I know its no Corvette.

But its by far the worst sounding 4 I think I've ever heard.

Guess I'll try a K&N and see if it clears its throat a little. I'm not looking for a roar... I'm looking for a smoother non-tinny rev.

Well, if you really think it is too loud, maybe one of the these "super quiet" labeled mufflers from Walker will do. K&N high flow filter will not make it quieter.

Redline_Me · 03-17-2009, 11:26 PM

Quote:

Originally Posted by jayrguidaben

i say that too. what is that for?

No idea but my friend who has a TC said that he removed his and noticed better response and to tell you the truth i did too. More than when i put in the drop in filter.