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Help... KO4 issue...

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Old Apr 1, 2004 | 05:04 AM
  #11  
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Default the k03 comparison isnt really valid.

true, for the same boost the k04 intake temp should be cooler.

BUT...

at the same boost you are pushing more air with the k04 at a higher mass flow rate. you've probably reached the limit of the stock IC ability to cool that much air.

before making a purchase, you should log intake air temps and timing.

also, how were your oil temps on the track?
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Old Apr 1, 2004 | 12:12 PM
  #12  
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K04 is only slightly larger than K03, I never could see why people thought this a good upgrade
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Old Apr 1, 2004 | 12:42 PM
  #13  
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Default it is +40-50hp depending on who you talk to.

lets see,

40hp for 1600. k04
80hp for 4500. apr stage iii

i think everyone would love to have a stage iii a4. its just very hard to justify. its definately a luxury.

a k04 is a resonable increase for resonable money.

hell, with the group buy that just ended, you couldve walked away with one for $1200.
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Old Apr 2, 2004 | 04:01 PM
  #14  
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I had heard that the turbo was worth only 35-40 the tuning and all makes the other diff's
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Old Apr 2, 2004 | 05:08 PM
  #15  
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Default

yup.
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Old Apr 3, 2004 | 05:49 AM
  #16  
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Default Re: OK... thanks... but more...

Important thing to point out is that the other KO4 kit car (MTM), did not lose any power what so ever the entire session. His setup is identical to mine except that it's an MTM (ok, it's slightly different).

One more thing...my setup is using stock spark plugs... someone told me that I absolutely have to run cooler plugs with the KO4 setup. Could this the culprit???

I'm no engineer but common sense tells me that my IC could not have gotten heatsoaked in that temperature. It was around 35F in my first session. The only other time I experienced something like this with my KO3, APR chip, and stock exhaust was when temp was over 90F. Sure, I lose some power all the time but not to this degree. Of course, I could be completely wrong.

Appreciate any comments.
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Old Apr 3, 2004 | 06:02 AM
  #17  
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Re: Might sound stupid but... what is YGM?
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Old Apr 3, 2004 | 11:56 AM
  #18  
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You Got eMail.
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Old Apr 5, 2004 | 11:54 AM
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Default Boost leak makes sense then. Aggressive driving can lead to boost lines blowing or fitting....

coming undone. Happened on my B5. Had to replace the boost hose under the BPV. Cheers! Mike
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Old Apr 9, 2004 | 08:37 AM
  #20  
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Default Re: OK... thanks... but more...

Hi Jay -

I'm certainly no expert, but I don't see why it couldn't heatsoak in 35 degree temperatures. Sure, the low temp will make your intercooler that much more efficient, but if it's woefully inadequate for the task to start with, then it could still heatsoak. Think of the boundary case, where your intercooler is just a straight insulated pipe (i.e., no intercooler at all.) Then it's a closed system from the compressor all the way back to the intake, and the ambient air doesn't do anything to cool your intake charge.

So, in my opinion - the 35 degree temps will keep you from heatsoaking as quickly (or as completely?) because the initial air you suck through the airbox is cooler, and your intercooler is more efficient, but you could still heatsoak with an inadequate intercooler as your turbo heats up and compresses the intake charge.

But like I said, I'm no expert...
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