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truck feels a lot slower with a/c on

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Old Sep 29, 2009 | 03:43 PM
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next time i talk to him i'll see if we can figure it out with HP tuners but im going to look into EFI live so i can start tuning my own **** too. it will be helpful, especially if i trade my bike for this ls1/t56 IROC-Z
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Old Sep 29, 2009 | 03:44 PM
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Originally Posted by 00ChevyScott
I picked up my EFIlive for $225 shipped hehe
where did you find it? do they have anymore at that price?
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Old Sep 29, 2009 | 03:45 PM
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Found it on tech, came with a license and hasnt been upgraded to V2. I'm waiting for the tracking number today.

Keep an eye out on their classifieds, I got lucky and just happend to look the same hour it was posted and jumped on it.
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Old Sep 29, 2009 | 03:47 PM
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thanks, i'll keep an eye out over there
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Old Oct 4, 2009 | 09:02 AM
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In the HP Tuner's section, its under Engine and Torque Management then Engine Torque and you'll see the labels there on what you need to change. I would leave about 5 in the highest map settings so it will help pull some timing during hard loads otherwise, you'll get a good deal of knock. I've tried.....
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Old Oct 15, 2009 | 05:13 PM
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Rather than play around with the tune to try and compensate for the load of the AC, I "fixed" my lower power with a/c on issue with adjustments to the compressor disable/enable rpm's, and tps enable/disable settings.

HPTuners table attached below.

I simply have my compressor kick off at 75% TPS and 3500 rpm, instead of the stock tune's 100% TPS/5250 rpm's compressor disable settings. After all, if I am driving around at less than 75% TPS and under 3500 rpm's, I am just cruising anyway. Above that, say for merging/passing/etc., I have full power.

These minor changes work great on my truck, and also on my LS1 powered Camaro. Obviously, these settings can be catered and fine-tuned to your personal preference.
Attached Thumbnails truck feels a lot slower with a/c on-pa130004_01.jpg  
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Old Nov 1, 2009 | 12:46 AM
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Where did you pick up efi live for $225 at.
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Old Nov 1, 2009 | 01:34 AM
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Originally Posted by nfountain
Where did you pick up efi live for $225 at.
you obviously didn't read past post 10
read post 13
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Old Nov 1, 2009 | 08:02 PM
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Originally Posted by rel3rd
Rather than play around with the tune to try and compensate for the load of the AC, I "fixed" my lower power with a/c on issue with adjustments to the compressor disable/enable rpm's, and tps enable/disable settings.

HPTuners table attached below.

I simply have my compressor kick off at 75% TPS and 3500 rpm, instead of the stock tune's 100% TPS/5250 rpm's compressor disable settings. After all, if I am driving around at less than 75% TPS and under 3500 rpm's, I am just cruising anyway. Above that, say for merging/passing/etc., I have full power.

These minor changes work great on my truck, and also on my LS1 powered Camaro. Obviously, these settings can be catered and fine-tuned to your personal preference.
Really...that's only for WOT but yes...that does help in WOT...but you need the other table for part throttle and cruise.
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Old Nov 1, 2009 | 08:06 PM
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Originally Posted by rel3rd
Rather than play around with the tune to try and compensate for the load of the AC, I "fixed" my lower power with a/c on issue with adjustments to the compressor disable/enable rpm's, and tps enable/disable settings.

HPTuners table attached below.

I simply have my compressor kick off at 75% TPS and 3500 rpm, instead of the stock tune's 100% TPS/5250 rpm's compressor disable settings. After all, if I am driving around at less than 75% TPS and under 3500 rpm's, I am just cruising anyway. Above that, say for merging/passing/etc., I have full power.

These minor changes work great on my truck, and also on my LS1 powered Camaro. Obviously, these settings can be catered and fine-tuned to your personal preference.
dude, press the "print screen" button, its next to scroll lock, and paste it into paint. much easier than actually taking a picture of your screen.
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