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Thread: New forged engine and 88 mm turbo - Need Input

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    Tuner seven ends's Avatar
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    May 2007
    Houston, Tx

    New forged engine and 88 mm turbo - Need Input

    2006 Gen III avalanche replaced LS6 engine and roots blower with a new forged 390 LS2 block, 232/232 cl 113 cam, 88 mm turbo, Mast LS3 heads, L76 intake, 2 bar map, ls3 tb, ID1000 injectors, 258 mm TC, all billet 4L65e, and other odds & ends. The engine wants to run and sounds good above 1200 rpm but not so much below that. I have been playing with VE, RAF, and spark tables so far along with experimenting in the scanner. Constructive criticism much appreciated.
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    RIP 2006 Avalanche 4WD; LS2 390 block; Mast LS3 heads; L76 intake; PT88 Turbo; eBoost2; 232/232-CL113; ID1000, Meth, KB BAP, LS3 TB; DRX X-Link; 2-bar+100mm;Maf; 4" downpipe to 3" twin exhaust; Xtreme Built 4L65e w/ billet shafts & Circle D triple disk; CSR flexpate; custom driveshaft; Truetrac; Trucool 40k; Autometer gauges; AFX WB; Viper Alarm, SSBC Big Brake Kit, AR Hankook 20's.

    2010 Avalanche 4WD; stock 5.3; TVS1900; ID1000