IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

What causes lack of performance?

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Old 07-24-12, 05:21 AM
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SeanIS350
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Lol.... This thread is funny.

Did you have the valve spring recall done?

I noticed a loss in power after I had mine done. Don't think its as slow as you saying yours is though.
Old 07-24-12, 05:28 AM
  #17  
MamadIS
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Well there is definitely something wrong with your car man. i raced my friends 335xi and we were dead even till 120. i think you should have your engine checked up and make sure all the recalls are done cause if you missed any of the recalls that could have caused it. do no waste time practicing how to launch your car cause i dont think thats the problem. you should be able to lunch in 3rd gear and still smoke that matrix
Old 07-24-12, 05:51 AM
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Soap
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How many miles? Depending on the answer to that question have you thought about a tune up? Spark plugs etc? How about your air filter? Have you inspected it? I have seen air filters come apart and cause a blockage of air flow? Fuel filter? There are several things you still have to check here in my opinion.
Old 07-24-12, 06:05 AM
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jbjones85
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There could be a variety of things including but not limited to, dirty air filter, old spark plugs, something major wrong, have a 250 w/ 350 badges, bad/wring octane gas, clogged/dirty injectors, ext. I would do the ECU reset as already mentioned, run the VIN to make sure its a 350, check the air filter.
Old 07-24-12, 06:05 AM
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iRyan
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That's a 250....bec even running on 5 pistons a Matrix cannot beat you....it's impossible unless someone rigged ur ecu and only allowing 50% power...
Old 07-24-12, 07:35 AM
  #21  
embolism
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did you have this issue before you got into that big accident?

Maybe something is still messed up. As I recall, you were going to fix everything yourself. Maybe it's worth taking it to a shop for a diagnostic...
Old 07-24-12, 07:41 AM
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MikeyK02
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Originally Posted by UniSlayEX
Ooo you gon learn today....

I will save you the "do the search" lecture but to save you some time I will summarize what everyone will eventually say.
Turn off your driving assists. Leave in drive. Turn off power ect. Quarter of a tank (if you can help it). Nobody riding shotgun.

You loose to a matrix again, debadge and apply 250.

LoL hope this helps, happy "racing."
alright alright ALLLLLLRIIIIIIIIIIIIIIIIIIIIIIIIGHTTTTT
Old 07-24-12, 07:56 AM
  #23  
UniSlayEX
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Originally Posted by MikeyK02
alright alright ALLLLLLRIIIIIIIIIIIIIIIIIIIIIIIIGHTTTTT
LOL ...awesome.
Old 07-24-12, 08:53 AM
  #24  
Liollios
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Originally Posted by chi123
Lol, that's what I think but it's not. My engine doesn't look like my friend's IS250 engine and I got the bigger brakes. So I can rule that out.
You seriously weren't 100% sure what kind of Lexus you own?
Old 07-24-12, 09:14 AM
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Herofmine
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LoL, Something is wrong here,
Problems can be 1. Intake sucking hot air. 2. Spark plugs (tune up) 3. Bad gas. 4. How much you weight? =)) (just kidding). 5 maybe too much tire spin?
Old 07-24-12, 09:21 AM
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po1qw
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Originally Posted by RDIS250AWD
couldve had a
maded my day 2jz swap llolool
Old 07-24-12, 09:50 AM
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ssis300
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Dang, I feel for you bro. My 350 has taken down a Challenger SRT-8 from a roll (granted, he had people in the car, and my conditions were ideal....but still), and a Hemi Charger the other day, when he didn't want to let me get over (big mistake, as it must've been embarrassing with his girl in the car)....just to name a couple, even though I don't approve of reckless driving (only in wide open road with nobody around!).

Something definitely sounds off here. No way in hell that a Matrix takes down our cars. Road&Track clocked a 2007 IS Sport Pkg at 0-60 in 4.9 and a 13.5 @ 103.1 quarter-mile. Lets see the Matrix put up those #'s!!! Good luck with finding out what's going on with your 350.
Old 07-24-12, 09:54 AM
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slownlow07
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Sucks to hear man. Hopefully you get it figured out.
Old 07-24-12, 10:02 AM
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IS350HKS
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...... 250"?..... no way you're going to lose to the a NA v4...
Old 07-24-12, 10:04 AM
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RDIS250AWD
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Originally Posted by Kaydee
How sure are you that the matrix is stock?
couldve had a


Originally Posted by po1qw
maded my day 2jz swap llolool

well its the most logical answer other than him having a 350 lemon imo.


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