Recent Topics
Find Topics I Started
by BlueOvalFitter
07/30/14 01:49 PM
Conversions
by OneEyeJack
07/30/14 01:32 PM
Silkolene or Motul
by LTD
07/30/14 01:30 PM
Women and guns
by Hokiefyd
07/30/14 01:01 PM
Doing the math: BYOF vs Shop Fluids
by SwedishRider
07/30/14 12:44 PM
Are the 2002-vintage Northstars something to avoid
by redhat
07/30/14 12:07 PM
How hot is too hot for EOT?
by Griz95
07/30/14 11:29 AM
Mix my own dexos1??
by wolf_06
07/30/14 09:46 AM
Avoid FedEx
by Touring5
07/30/14 09:45 AM
New vehicle protocol
by Mfrank84
07/30/14 09:13 AM
Four Baldwin BT223 oil filters
by NormanBuntz
07/30/14 09:13 AM
UOA: 02 WRX 5MT, 40K - Valvoline "cocktail" 80w90
by Buffman
07/30/14 08:37 AM
Newest Members
gsniegow, dimaone, CaddymanLNL, geovanni, LTD
50806 Registered Users
Who's Online
112 registered (AandPDan, 94astro, AlaskaMike, 2KBMW, 1foxracing, 9 invisible), 2116 Guests and 234 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
50806 Members
64 Forums
217041 Topics
3417367 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG

Topic Options
#3255690 - 01/21/14 09:02 PM Neighbor's loud RX350
mclasser Offline


Registered: 04/13/13
Posts: 377
Loc: DC
My neighbor got a new RX350 and was showing it to me the other day. We did a cold start in the morning and I was surprised at how loud the engine was. The temp. was in the low 30s and I know the engine is loud first thing in the morning, but still. We took it for a spin and the engine ultimately quieted down; I didn't expect a Lexus to be like this. I don't think my 12 yr old Accord is even that loud in the morning and Honda's are known to be noisy when cold.
_________________________
-- 2013 Honda Pilot EX-L 4WD
-- 2002 Honda Accord EX-L SULEV 175k miles: PU 5W20 & Honda A02
-- 2002 Infiniti I35 85K miles: PU 5W30 & P1

Top
#3255751 - 01/21/14 10:11 PM Re: Neighbor's loud RX350 [Re: mclasser]
vssjim Offline


Registered: 10/05/11
Posts: 350
Loc: McLean, Va.
If it's direct injection they are louder and newer toyota v6's are on the noisy side any way.

Top
#3255790 - 01/21/14 11:16 PM Re: Neighbor's loud RX350 [Re: vssjim]
Nick R Offline


Registered: 07/14/09
Posts: 10416
Loc: Amherst, OH
Originally Posted By: vssjim
If it's direct injection they are louder and newer toyota v6's are on the noisy side any way.


+1. My focus, and the traverse are both DI and are pretty noisy when cold. A lot of it has to do with the Fuel injectors, and a lot also has to do with the ignition and valve timing when cold. Modern engines are programmed to severely retard the timing, to get EGT up, to help "light off" the catalytic converters quicker. Most newer engines also use much lighter, thinner exhaust manifolds, which make this much more noticeable audibly.
_________________________
13 Ford Focus SE 2.0L/31,000miles/Pennz Plat PurePlus 0W-20/FRAM Ultra
13 Chevy Traverse 3.6L/13,000mi/QSUD 5W-30/FRAM Ultra
11 Chevy Cruze 1.4T/32k

Top
#3256069 - 01/22/14 10:02 AM Re: Neighbor's loud RX350 [Re: mclasser]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 14265
Loc: Sunny Florida
Originally Posted By: mclasser
My neighbor got a new RX350 and was showing it to me the other day. We did a cold start in the morning and I was surprised at how loud the engine was. The temp. was in the low 30s and I know the engine is loud first thing in the morning, but still. We took it for a spin and the engine ultimately quieted down; I didn't expect a Lexus to be like this. I don't think my 12 yr old Accord is even that loud in the morning and Honda's are known to be noisy when cold.


x a dozen! Most DI vehicles I have heard are quite noisy, especially when first started.

Our neighbor has a beautiful new blue BMW with the 2 liter 4 banger, and it sounds just like a diesel when you first crank it up!
_________________________
"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix

Top
#3256100 - 01/22/14 10:34 AM Re: Neighbor's loud RX350 [Re: mclasser]
KrisZ Online   happy


Registered: 12/23/06
Posts: 4191
Loc: Toronto, Canada
Yes, lots of those DI engine have that diesel-y sound to them at idle even when fully warmed up.
I always notice this in the summer when driving with my windows down. Usually if a DI car sits next to me at a red light, I will hear that engine over mine.
_________________________
2006 Mazda3 2.0 - 186,000 Km
2003 Ford Focus ZX5 2.0 Zetec - 155,000Km
Both on good old dino juice smile

Top
#3256612 - 01/22/14 06:43 PM Re: Neighbor's loud RX350 [Re: mclasser]
CBR.worm Offline


Registered: 05/10/05
Posts: 1385
Loc: Jupiter, Fl
My sister in law got a new RX350 - it makes a lot of noise at idle. My brother's new 328i sounds like a diesel.

I like it, it makes my piston slap more acceptable...
_________________________
'06 Infiniti G35 Sedan 6MT - 145k

Top
#3256622 - 01/22/14 06:56 PM Re: Neighbor's loud RX350 [Re: mclasser]
mclasser Offline


Registered: 04/13/13
Posts: 377
Loc: DC
I don't think the RX350 comes with direct injection.
_________________________
-- 2013 Honda Pilot EX-L 4WD
-- 2002 Honda Accord EX-L SULEV 175k miles: PU 5W20 & Honda A02
-- 2002 Infiniti I35 85K miles: PU 5W30 & P1

Top
#3256624 - 01/22/14 06:56 PM Re: Neighbor's loud RX350 [Re: mclasser]
friendly_jacek Offline


Registered: 05/04/03
Posts: 5103
Loc: southeast US
LOL how many people jumped on the DI bandwagon while the RX350 has no DI engine (2GR-FE). It's classic:
http://en.wikipedia.org/wiki/Groupthink

Yes, that engine is generally noisy and some units are noisier than others (piston slap). I posted about mine a few time here.

Top
#3256636 - 01/22/14 07:03 PM Re: Neighbor's loud RX350 [Re: mclasser]
Eddie Online   content


Registered: 12/07/03
Posts: 6598
Loc: Florida, Cape Coral
If like my Mazda, extra fuel is injected to heat up the cat quickly. Mine quites down after ~ 1 minute.
_________________________
CX5 Touring 2.5L :-)

Top
#3256678 - 01/22/14 07:34 PM Re: Neighbor's loud RX350 [Re: mclasser]
rslifkin Offline


Registered: 06/27/10
Posts: 2189
Loc: Stamford, CT / Rochester, NY
The comment about thinner exhaust manifolds is definitely a valid one. When I put headers on the Jeep, it gained a definite tick to the exhaust note, even after I made sure the header flanges were sealing properly. The thick cast iron manifolds were enough to block a lot of the ticking type noise on the exhaust pulses while the thinner walled headers let more of it escape.
_________________________
1998 Jeep Grand Cherokee 5.9 Limited with Heads/Cam/Headers/Exhaust/Tune/Shift Kit (171k miles, bought with 100k)
Rotella T6 @ 6k OCI

Top
#3257214 - 01/23/14 09:22 AM Re: Neighbor's loud RX350 [Re: mclasser]
Hokiefyd Offline


Registered: 06/24/04
Posts: 10775
Loc: North Carolina
Toyota's GR-series V-6 has always sounded like it was lubricated by marbles, at least to me. I've never cared for the way it sounds inside or outside the car.
_________________________
Cheers,
Jason

Top