Did some testing in sub 50F temps tonight to see how much temperature really affects K04 performance
10-19-2005, 08:01 PM
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Did some testing in sub 50F temps tonight to see how much temperature really affects K04 performance
Like I've said before, it seems like K03 performance is affected big time by temperature changes while K04 cars seem much more consistent. The results of this testing would support that.
Note: ~1/4 tank of 94 octane, ~900' above sea level, 45F outside.
~22.5 PSI peak tapering to at least ~20 PSI, maybe lower....
<img src="http://img.photobucket.com/albums/v654/DocSlow/Wooo-10-19-2005_45F_MAF_Timing.gif" alt="Image hosted by Photobucket.com">
Lots o' correction down low, might pull timing back to default for next testing session (currently +1.5 degrees FWIW)....
<img src="http://img.photobucket.com/albums/v654/DocSlow/Wooo-10-19-2005_45F_CorrectionFacto.gif" alt="Image hosted by Photobucket.com">
At first glance, seems on the rich side. I did another run right after and narrowband sensors were reading ~.10-.15 lower, though.
<img src="http://img.photobucket.com/albums/v654/DocSlow/Wooo-10-19-2005_45F_02Voltages.gif" alt="Image hosted by Photobucket.com">
About damn time I logged IATs. FWIW, *very* similar #s on 2nd run less than 2 minutes later....
<img src="http://img.photobucket.com/albums/v654/DocSlow/Wooo-10-19-2005_45F_IATs.gif" alt="Image hosted by Photobucket.com">
How do these IATs compare to others with RS4/AWE SMICs? TIA.
Note: ~1/4 tank of 94 octane, ~900' above sea level, 45F outside.
~22.5 PSI peak tapering to at least ~20 PSI, maybe lower....
<img src="http://img.photobucket.com/albums/v654/DocSlow/Wooo-10-19-2005_45F_MAF_Timing.gif" alt="Image hosted by Photobucket.com">
Lots o' correction down low, might pull timing back to default for next testing session (currently +1.5 degrees FWIW)....
<img src="http://img.photobucket.com/albums/v654/DocSlow/Wooo-10-19-2005_45F_CorrectionFacto.gif" alt="Image hosted by Photobucket.com">
At first glance, seems on the rich side. I did another run right after and narrowband sensors were reading ~.10-.15 lower, though.
<img src="http://img.photobucket.com/albums/v654/DocSlow/Wooo-10-19-2005_45F_02Voltages.gif" alt="Image hosted by Photobucket.com">
About damn time I logged IATs. FWIW, *very* similar #s on 2nd run less than 2 minutes later....
<img src="http://img.photobucket.com/albums/v654/DocSlow/Wooo-10-19-2005_45F_IATs.gif" alt="Image hosted by Photobucket.com">
How do these IATs compare to others with RS4/AWE SMICs? TIA.
10-19-2005, 08:11 PM
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As usual, looks good JD...
You're a victim of the usual 6500rpm K04 dropoff, but that helps your timing. 85deg peak IAT's! I need to take my car out when it gets that cold here 
FWIW: the new injectors are working out well, got some part throttle stuff to work out, but I think my new O2's will take care of that. Oh, and I'm going to try to fill-up with 100 tomorrow... just for the STFU factor
FWIW: the new injectors are working out well, got some part throttle stuff to work out, but I think my new O2's will take care of that. Oh, and I'm going to try to fill-up with 100 tomorrow... just for the STFU factor
10-19-2005, 08:17 PM
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I'm on the fence re: having Piggie tighten them there wg actuators.
I'm just tapering way too damn much. All the other K04 MAF data I see doesn't show a taper like mine does....most just level off at 6500 and hold that to red at the very least.
Sweet, looking forward to some data collection...as always. FWIW, was just talking to SLPRS4 today about picking up some 100 octane to test on my car.
Sweet, looking forward to some data collection...as always. FWIW, was just talking to SLPRS4 today about picking up some 100 octane to test on my car.
10-19-2005, 08:22 PM
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You can go 5mm or so on the actuators with no worry of boost creep...
It's worth a shot, no downside there. I don't know whether it will help peak power, but it will probably prevent it from falling off so abruptly.
FWIW, most K04 logs I've seen lately seem to drop rapidly after 6500.
FWIW, most K04 logs I've seen lately seem to drop rapidly after 6500.
10-19-2005, 08:47 PM
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nice. crazy to think that on stock ic's my starting temp in the log was ~100
the end of the pull i was at ~ 125.
it was 73 when i logged though, but even if you add 23 degrees to your starting temp you are still ~20 degrees colder!!! i need me some ic's
3.5 is very nice man.
*thumbs up*
it was 73 when i logged though, but even if you add 23 degrees to your starting temp you are still ~20 degrees colder!!! i need me some ic's
3.5 is very nice man.
*thumbs up*
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10-19-2005, 09:01 PM
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a dab'l do ya ;)
<center><img src="http://www.edelbrock.com/media/photos/SEMA_2003/images/nitrous%20polhsd%20botlsRGB.jpg"></center><p>c'mon... you know you wanna.
just a little 30 shot. that is, if youve got the minerals ;P
just a little 30 shot. that is, if youve got the minerals ;P
