HPT question about Desired IAC steps vs. Desired idle effective Area
10-05-2005, 06:43 PM
#41
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What if your IAC counts are around 110 warmed up but your idle is halfway decent? should I keep working to get it down? right now I haven't drilled or used the setscrew, is it worthwhile to play with that just to try to get a number down?
10-05-2005, 07:01 PM
#42
110 is too high, even with the AC on. You should shoot for 30-50 IAC counts with AC off at fully warm idle. If you can crack the throttle with the set screw, that would be the best way, but in my case, I cracked the throttle too far and got the voltage threshold. As a result, I got my IAC counts by doing both the throttle cracking and drilling the TB blade.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
10-05-2005, 09:52 PM
#45
Originally Posted by TXCAMSS
Patrick- When you say you cracked theTB and got the voltage threshold, did you get a SES light or just get out of range idle parameters? I think I'm at .68 volts and at 34 IAC at idle warm in park right now.
10-06-2005, 08:29 AM
#46
i think the threshold is something like 0.71 v or so. but i may be wrong. the other problem you have to worry about with that voltage is the tps not staying reset. when i had the epoxy in my tb and it was restricting airflow, when i had to crack open the tb it woudl reset after a week and at idle it was 1-2%
