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New-ish 911SC Targa Owner
Join Date: Jun 2015
Location: Richmond VA
Posts: 1,361
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I believe that having less Ign timing during cranking allows the engine to turn faster and be less stressful on the starter. It might have some impact on how combustion occurs at the low rpm speeds that you see when cranking the engine too.
The LamdaAfterStartTrim does appear to be pulling out fuel for up to 20 secs. Try setting those to 0 and see how it responds. The LambdaCrankingTable is also a bit leaner at the hotter temps than mine. I think mine are "out of the box" settings though. Maybe try changing those settings too.
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'83 Targa 300k w/ freshened 3.0 with 930/52 case# 6770540 ARP and Raceware hardware - AEM Infinity 506, Triumph T595 ITBs, B&B headers, Dynomax muff, Fidanza FW, Alum PP-203whp
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