3000GT/Stealth International Message Center - View Single Post - ---===The Official MAFT-Pro Thread===---

Just to confirm, changing the "WOT Spark" settings from say 0 to -2 should retard my timing and reduce knock right?

I made a wot pass, saw a 20 count of knock, reduced the spark settings from 0 to -2 degrees, made another wot pass, then saw the knock count increase to 30.

This was at ~15 PSI on 91 octane.

Thanks,
Jeff

__________________

1992 RED 3000gt VR4:
Air:
DR 650s, DSM SMICs w/ 1 3/4" piping, hard pipe kit upgrade & 2 pre-turbo (no-maf) pipes w/ filters, GReddy Type-S BOV (open loop).
Fuel:
MAFT-PRO v5.03 (SD mode w/ Electronic Boost & Timing Control, GM 3 BAR MAP Sensor, GM IAT Sensor, & Innovate LC-1 wideband O2), Supra fuel pump (hotwired), 550cc PTE injectors @ 45 base psi.
Ignition:
Magnecore KV85-R100 spark plug wires, Denso iridium IK27 spark plugs gapped @ .034", Odyssey PC925 battery.
Engine:
.03" Overbore, 2nd-gen Lifters, polished heads.
Exhaust:
Gutted precats, ATR 3" downpipe, 3'' CAT, ATR 3" catback.
Drivetrain:
RPS 6-puck disk, RPS lightweight flywheel, 3sx lightweight drive pulley, polyurethane motor mounts, stillen drilled and slotted rotors, 18x9.5 5Zigen FN01RC rims, BF-Goodrich KDW-2 tires, Cusco rear strut bar.
Miscellaneous:
Corbeau seats, short throw shifter, presidential alarm system, 8 inch bazooka tube, kenwood double-din deck, 300lbs of miscellaneous weight reductions... "who's your daddy?" license plate

Future Mods:
1 Piece PST CFDS

07-23-2008, 11:04 PM	#2950 (permalink)
UCSB VR4 Forum Member Join Date: Jan 2003 Location: San Jose, CA Drives: 1992 3000GT VR4 Trader Rating: (1)	Re: ---===The Official MAFT-Pro Thread===--- Just to confirm, changing the "WOT Spark" settings from say 0 to -2 should retard my timing and reduce knock right? I made a wot pass, saw a 20 count of knock, reduced the spark settings from 0 to -2 degrees, made another wot pass, then saw the knock count increase to 30. This was at ~15 PSI on 91 octane. Thanks, Jeff __________________ 1992 RED 3000gt VR4: Air: DR 650s, DSM SMICs w/ 1 3/4" piping, hard pipe kit upgrade & 2 pre-turbo (no-maf) pipes w/ filters, GReddy Type-S BOV (open loop). Fuel: MAFT-PRO v5.03 (SD mode w/ Electronic Boost & Timing Control, GM 3 BAR MAP Sensor, GM IAT Sensor, & Innovate LC-1 wideband O2), Supra fuel pump (hotwired), 550cc PTE injectors @ 45 base psi. Ignition: Magnecore KV85-R100 spark plug wires, Denso iridium IK27 spark plugs gapped @ .034", Odyssey PC925 battery. Engine: .03" Overbore, 2nd-gen Lifters, polished heads. Exhaust: Gutted precats, ATR 3" downpipe, 3'' CAT, ATR 3" catback. Drivetrain: RPS 6-puck disk, RPS lightweight flywheel, 3sx lightweight drive pulley, polyurethane motor mounts, stillen drilled and slotted rotors, 18x9.5 5Zigen FN01RC rims, BF-Goodrich KDW-2 tires, Cusco rear strut bar. Miscellaneous: Corbeau seats, short throw shifter, presidential alarm system, 8 inch bazooka tube, kenwood double-din deck, 300lbs of miscellaneous weight reductions... "who's your daddy?" license plate Future Mods: 1 Piece PST CFDS