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HAI vs CAI. CAI wins

SF9777 said:
I know that Cooler Air is better than Hot air, obviously, But im sure it does not make a difference in my N/A. If i had a GTP then i would try to block as much heat from the WAI as possible.
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In my mind that's backwards. You don't have a blower to heat up the air. you will actually see cooler temps
 


SF9777 said:
I think you are the only person that has told me that, i dont really think i lossed power though
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Put it this way: If you notice better fuel economy, you probably lost power.

Since intake restriction is not really a problem when cruising.
 
Car seems soft on power when pulling away from a stop with a hot engine. Could be the high IAT with the WAI.
 


Juanmiguel said:
the stock tune pulls timing when IAT reaches past 80*C IIRC and it does get that high with an open cone on a stop.
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Yes. Stock tune will actually pull timing beginning at 40*C IAT. I've tuned my car to not reduce spark due to IAT though. I still think the power loss is from low air density.
 
mechguy said:
Yes. Stock tune will actually pull timing beginning at 40*C IAT. I've tuned my car to not reduce spark due to IAT though. I still think the power loss is from low air density.
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That explains why after I deleted my CAI last week and went HAI I started experiencing KR. I was starting to think my aeroforce was defective because the KR never changed from 0.0 until I did that.
 
You may notice it only right away, like if you had just before, not been moving very fast.

I too tuned my car to not let the warm IAT's affect my car when they are high, and under a WOT run temps can quickly drop from 120º + to ambient in around 5 seconds.
 
I now notice it under light acceleration and heavy acceleration. I could only get it to show up to 2* before, by giving light throttle when the TC was locked in 4th. Now, its showing up to 5.3* in every gear under any acceleration level. It's probably the fact that the IAT is no longer in the stream of the intake. It's sitting on top of my filter. I'll drop it in stream tomorrow and see if that kills the KR. If not, CAI is going back on.
 


Yes. But had no KR prior to going HAI. Headers have been in the box for the last year and a half, one day I'll find the time to get them in.
 
lol, yeah, its a freak. So far its breaking most of the rules of the "Safely modding a 3800" thread. It has a N* TB, 3.25 press on pulley, ported S/C, Cam/rockers? still unsure, head work? still unsure, PEM's to a 3"DP H/F cat and 3" straight pipe with cutout to the stock muffs. Bought it this way. Took a lot of reading to figure out that much. Runs awesome though, so cant complain too much.
 
Keith's car probably has a chipped piston.

Just because it has no KR, doesn't mean it's tuned worth a sh1t either.

Could have 10* of timing at it.
 


bluegtp91 said:
Keith's car probably has a chipped piston.

Just because it has no KR, doesn't mean it's tuned worth a sh1t either.

Could have 10* of timing at it.
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Yeah, I dont know who tuned it. Pistons are good though. I make sure not to rod on it too much until I find some time to get the headers on or pulley up. But my timing is at 17* at WOT. And I see between 0 and -5 for LTFT's at WOT.
 
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