Corvette L98 Modifications
 

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.

http://i287.photobucket.com/albums/l...a2c5ec4e58.jpghttp://i287.photobucket.com/albums/l...40e37e1cc7.jpg
http://i287.photobucket.com/albums/l...ca7d7373e8.jpg
http://i287.photobucket.com/albums/l...4a4dcd20ce.jpg

SW Headers and Magnaflow Exhaust
http://i287.photobucket.com/albums/l...98Engine-1.jpg

See 90’ (#8550) Corvette (L98) Modifications For Details