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Discussion Starter #1
Alright, what you are about to read does not make sense. I know this, but I can't deny that it is happening. I don't expect an answer, but does anyone else notice this...<p>Basic schedule of warm car up in the morning, drive to work. Warm car up from work, drive home.<p>The drive home, every damn day, the car is a hot rod. Turbo spools and boosts incredibly well. In the mornings, the car feels like a dog. Its cooler in the morning, so it should be faster then!<p>Anyone else? I don't think its really mechanical, but its like clockwork. I have time tested at a certain straight area, and the car is literally faster on the way home. EVERY DAY. I am confuzzled....<p>Open to comments...
 

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2021 Inscription Recharge - 2021 Silverado LTZ 6.2L
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It is downhill on the way back.
 

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Re: Performance "issue" which defies logic. Anyone else? (imageomega)

Car's smart:<p>Going to work,,,,BAD<br>Leaving work,,,,GOOD!! <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/cool.gif" BORDER="0">
 

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Re: Performance "issue" which defies logic. Anyone else? (imageomega)

Cute little squirrels are hiding in your CAI at night, and they leave after you get to work to go to their own jobs. They ride back on the subway.
 

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Re: Performance "issue" which defies logic. Anyone else? (BeerEngineer)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>BeerEngineer</b> »</i></TD></TR><TR><TD CLASS="quote">Cute little squirrels are hiding in your CAI at night, and they leave after you get to work to go to their own jobs. They ride back on the subway.</TD></TR></TABLE><p>Thats probably it. You're pretty smart.<br>
 

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Discussion Starter #6
Downhill/Uphill is not in the equation. Its turbo related if anything. I can hear it in the afternoon... as in audibly and butt dyno more boost than in the mornin'. I let it warm up for the same amount of time, could it just be the warmer start in the afternoons?<p>It probably is the car being smart and not wanting to go to work. hahaha <p>About the response I expected. I warned you, defies logic. I just seriously can not tell myself its in my head anymore. Its happening! You're welcome to come drive me to work and home sometime=p <p>Its to the shop saturday anyway. I will have them check all the turbo related items.
 

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Re: (imageomega)

How long are you warming the car up before driving this road?<br>Also, If you let the car sit overnight and don't drive it till the afternoon, do you get fast or slow results?
 

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Re: (2004volvos60R) Yeah My Toughts Also ! ( Over Night - Cold Oil )

The Gear-Oils and Trans-Oil and Engine Oil all have some Day-Time Stored<br>Temp , Instead of the Cooler Night Temps where Oils Start to get Stiff .<p><br>How Much Faster Are You Talking about -In the same distance ? <br> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/embeer.gif" BORDER="0">
 

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Discussion Starter #9
I let the car warm up for approx. 5 minutes at both ends. <p>If I do not drive until afternoon, it feels more sluggish. But I have not left for work later so I haven't gotten to test on the same roads.<p>The only time testing I can do is based on a stop watch which is probably a bit inaccurate as I am driving, but with hitting it as close as possible to 2 telephone poles, I note ~1 second difference from about over.... 300 feet?<br>Oil temps can really make a noticeable difference?
 

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Re:

Guesstimate: Your oil is too thick. What is the weight of oil you use?
 

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Discussion Starter #11
Using Royal 5w30..... read many threads on oils before choosing.<p>I may have noted a possible explanation today. There was a post a while back about A/C's causing increased "pep" for some people. Mine does this, but I notice a difference if I turn the motor over with the A/C on or off. It runs better if I have the A/C ON during a start - even if I then shut it off. This explanation works very well with my habits also. I will be interested to see what happens in the winter. This car has got me scratching my head all over the place. I feel stupid even posting this, but as I say above, its literally too noticeable to deny its happening anymore!
 

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That's really intresting about the A/C setting, I have the same habit during my afternoon drive home and come to think of it the car always feels like a beast coming on to the highway, more so then the morning.
 

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Re: (imageomega)

If you notice, the A/C doesn't actually kick in till a few seconds after start up, even if it's turned on at start up. This is probably to prevent unnecessary strain on the battery and starter motor. However, with the A/C on, it means the engine runs a bit faster with more load, so it could heat up quicker. I'm going to go with cold oil verdict too.
 

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It may have nothing to do with it, but I recently found a performance gremlin that had been intermittently troubling me for months. A couple weeks ago when it got fairly cold, it finally got bad enough to throw a code, and I found it was the fuel pressure sensor. My Volvo guy told me a new TNN just came out about them, they're wearing out a lot more often than they should. At $300, I don't think I'd replace it on a whim though.
 

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Re: Performance "issue" which defies logic. Anyone else? (imageomega)

HA HA <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0"> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0"> <p>This is crazy...<p>I have the opposite effect. When it is nice a cool in the mornings (51ish) in CO, I suffer no heat soak. Thus I have a really spirited drive into the office.<p>However on the way home, it is 85 degrees, heat soak has set in, and the car is sluggish. (normal)<p>I think the AC would generally slow my car down... at least this is what I have perceived... <IMG NAME="icon" SRC="http://www.vwvortex.com/zeroforum_graphics/screwy.gif" BORDER="0">
 

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Discussion Starter #16
bri2k - I have been having fuel system issues. I am getting that fixed this Saturday. I've got my fingers crossed that it fixes this also.
 

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Re: Performance "issue" which defies logic. Anyone else? (cucharon)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>cucharon</b> »</i></TD></TR><TR><TD CLASS="quote">HA HA <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0"> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0"> <p>This is crazy...<p>I have the opposite effect. When it is nice a cool in the mornings (51ish) in CO, I suffer no heat soak. Thus I have a really spirited drive into the office.<p>However on the way home, it is 85 degrees, heat soak has set in, and the car is sluggish. (normal)<p>I think the AC would generally slow my car down... at least this is what I have perceived... <IMG NAME="icon" SRC="http://www.vwvortex.com/zeroforum_graphics/screwy.gif" BORDER="0"> </TD></TR></TABLE><br>AC causes more strain which causes boost to come on quicker
 

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Re: Performance "issue" which defies logic. Anyone else? (imageomega)

You've clearly been watching too much of this...<p><IMG SRC="http://www.noggin.com/shows/img/hdr212x193upsidedown.jpg" BORDER="0"> <p>Step away from the TV.<p>-Eric
 

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Re: Performance "issue" which defies logic. Anyone else? (cucharon)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>cucharon</b> »</i></TD></TR><TR><TD CLASS="quote">HA HA <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0"> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0"> <p>This is crazy...<p>I have the opposite effect. When it is nice a cool in the mornings (51ish) in CO, I suffer no heat soak. Thus I have a really spirited drive into the office.<p>However on the way home, it is 85 degrees, heat soak has set in, and the car is sluggish. (normal)<p>I think the AC would generally slow my car down... at least this is what I have perceived... <IMG NAME="icon" SRC="http://www.vwvortex.com/zeroforum_graphics/screwy.gif" BORDER="0"> </TD></TR></TABLE><p>Of course it would. The heat thrown off completely soaks the IC.
 

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Discussion Starter #20
Re: Performance "issue" which defies logic. Anyone else? (Needsdecaf)

Thought I would throw in some follow-up here.<p>To start, I had an excellent experience at a dealer today. I recommend Tasca Volvo to anyone in the RI / southern MA area. They truly took pride in the work and really wanted my car to be running at 110%. Multiple times did they bring me in to show me something. I ended up paying a few hundred less than I had expected, while getting more accomplished. A rarity, I know. <IMG NAME="icon" SRC="http://********************/smile/emthup.gif" BORDER="0"> <p>Sparkplugs and FPS replacement fixed my hesitation/jerking issues <IMG NAME="icon" SRC="http://********************/smile/emthup.gif" BORDER="0"> <p>The plug replacement also HUGELY helped my boost levels. I can only assume misfires were causing my boost levels to drop mid-acceleration WOT, and then trying to come back up. Now its all smooooth <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0"> <p>So I have not done the daily work commute yet, but I have much confidence that this servicing will, if not cure, greatly improve my performance woe's.<p>Time to enjoy the weekend <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/embeer.gif" BORDER="0"> <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/smile.gif" BORDER="0"> Thanks to everyone who offered suggestions. This community is amazing.
 
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