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Heatsoak

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  #21 (permalink)  
Old 04-29-2009, 09:44 PM
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Default Re: Heatsoak

Mrphotoman, what do u mean by redline? Obviously the car autoshifts up as soon as the red is reached on the rev gauge. Meaning that to reach 60mph, the car would already have reached "redline".
 
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Old 04-30-2009, 04:05 AM
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Default Re: Heatsoak

I dont believe the boost, 25.5 it is not real, possibly absolute pressure wich would be about 11 which is too low. Woody
 
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Old 04-30-2009, 04:21 AM
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Default Re: Heatsoak

I see your problem. According to the dyno, you were more leaned out when stock and running pig rich for some reason after the pulley. A good tune should solve your problem. When you get the tune, be sure to give them your dyno sheet to help them get it right for you. You should try to get her tuned with an airi/fuel ratio around 12.2-12.3. Your exhaust tips are probably all black from all that richness. Good luck!
 

Last edited by Mimi05SRT6; 04-30-2009 at 04:24 AM.
  #24 (permalink)  
Old 04-30-2009, 04:42 AM
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Default Re: Heatsoak

As an observation from my install of the Code 3 pulley, my IAT and water temperatures have been higher over that of the factory pulley. I've found myself running the heat almost all the time to mitigate the additional heat. When not doing this, the car does heat soak and performs about the same it did pre-pulley. Not sure if this would be your whole problem or just contribute to another problem, like a slipping belt or pressure leak.


Originally Posted by aussiedude
ok, so all these various probs I've been been having(low power on dyno, low track times) have been after at least 45 mins of highway driving, in 27 degree C days.
is it possible that the addition of the code 3 pulley has been causing significant heatsoak?
seems like that shouldn't be enough....
 
  #25 (permalink)  
Old 04-30-2009, 04:57 AM
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Default Re: Heatsoak

Originally Posted by aussiedude
I'm using a carchip data logger.
just went out, drove at highway speed for an hour, then floored it a few times.
I also did a couple of 0-65ish runs.
Max boost-25.2 psi
max Intake Air Temp 143 F (is that normal?)

Is it possible I'm not giving the car time to reach full boost? Surely it would before 60MPH?
base it on your rpm's. did you hit redline? you will hit peak boost usually at the top of 3rd gear but you should be real close at the top of 2nd gear, around 90mph or so.

143F peak temp on a 80 degree day after driving an hour is not bad at all.
 
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Old 04-30-2009, 05:35 AM
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Default Re: Heatsoak

the problem may be solved!
Brandon at code3 had me send him a pic of the pulley, and noticed it seemed quite far from the clutch.
I measured it....1.5 mil. that's 6 times what it should be! He seems to think this would have a major impact. Thoughts?
I'll take it off,remove some shims and reinstall tommorow.
As a side note, i always have such a damn hard time bracing it when i remove, anyone got any fave tools/techniques to reccomend?
 
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Old 04-30-2009, 05:39 AM
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Default Re: Heatsoak

Originally Posted by aussiedude
the problem may be solved!
Brandon at code3 had me send him a pic of the pulley, and noticed it seemed quite far from the clutch.
I measured it....1.5 mil. that's 6 times what it should be! He seems to think this would have a major impact. Thoughts?
I'll take it off,remove some shims and reinstall tommorow.
As a side note, i always have such a damn hard time bracing it when i remove, anyone got any fave tools/techniques to reccomend?
get a strap wrench, they are around $5.00 and all your install probs are solved.



yeah if that gap is huge then the clutch on the pulley will not engage properly (or at all) and will result in little to no boost.
 
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Old 04-30-2009, 05:56 AM
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Default Re: Heatsoak

ha! i just broke one! Cut clean through the strap. that bolt is really on there
 
  #29 (permalink)  
Old 04-30-2009, 06:09 AM
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Default Re: Heatsoak

Originally Posted by aussiedude
ha! i just broke one! Cut clean through the strap. that bolt is really on there
wow it does not need to be on there no where near that tight, be careful or you will break that bolt.
 
  #30 (permalink)  
Old 04-30-2009, 08:12 AM
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Default Re: Heatsoak

Originally Posted by waldig
Keep us informed, I love to see a photo of the water down there going down the drain the other way...

Maybe the bolts down there go the other way also???

I use an impact wrench to remove my pulley bolt. NOT to install it though.
 
  #31 (permalink)  
Old 04-30-2009, 09:41 PM
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Default Re: Heatsoak

just got a better strap wrench.
i had 2 shims stock, and even with them off i seem to have mayb just under a mil of gap. seems too big!
Can I run with no shims? Don't see why not, if there is clearance...
 
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