90’ (#8550) Corvette (L98) Modifications
New
SW Headers
New
Magnaflow Exhaust
New
TPiS Air pump delete kit with New Billet Aluminum Pullley
New
Belt Tensioner Billet Aluminum Pulley
New
180 deg thermostat
New
Chrome Water Pump
New
Chrome Alternator
New
Plug wires
New
C4 Beam Plates
New
Differential oil drain plug (drilled and tapped)
New
Differential oil drain plug
New
Billet Aluminum oil cap
Existing
Existing Aluminum Radiator
New
Oil Pan and Gasket including New Milodon 18309 Oil Pump Pickup
Fluids
Mobile 1 75W-90 Differential oil (limited slip)
Fluids
Mobile 1 10W-30 synthetic Engine oil
Fluids
Castrol TWS 10W-60 Transmission oil
Eliminated
Water Pump Frisbee and added Aluminum Water Pump Pulley
Eliminated
Air Induction system
Eliminated
CATS
Eliminated
EGR
Doc Don's
Bose
Modified
Oil Cooler Use NAPA 8020 and 9808 hoses cut to length
L98 Oil Cooler Housing Modifications for Headers
Modified
Marc Haibeck Chips
87 octane calibration (ARFPCL)
29 deg at WOT.
Enabled manual transmission.
Both fans to go on at 195 and both off at 190 degs.
Added +5% at WOT fuel to support +20 hp from headers.
Disabled deceleration fuel cut off.
Disabled EGR.
Idle speed is OE at 600 rpm.
91 octane calibration (ARFPCL1)
29 deg + 4 deg = 33 deg at WOT.
Enabled manual transmission.
Both fans to go on at 195 and both off at 190 degs.
Added +5% at WOT fuel to support +20 hp from headers.
Disabled deceleration fuel cut off.
Knock retard reduced by 50%.
Disabled EGR.
Idle speed is OE at 600 rpm.
SW Headers and Magnaflow Exhaust
See 90’ (#8550) Corvette (L98) Modifications For Details