Basics: 1988 Corvette, L98, 700R/4, 2.59posi, GY Eagles, 3390lbs (1/2tank).
Options: 35th Anniversary, dual pwr seats, Ca emissions.
Purchase: $14,900, 94,000 miles, April, 2000.
Note: holes in rear Y-pipes.
60ft - 2.20 sec
1/4 mi - 14.45sec, 94.6mph, BHP - 218hp
Conditions - 3380lbs, off idle, 82deg F, 40%RH, 28.99 Baro.
Normalized 1/4mi - 14.04sec, 95.29mph BHP - 228hp (240hp rated).
Intake - Cut cover w/ K&N, gutted MAF, BBK 52mm TB, ported plenum & runners.
Cooling - 160deg stat, TB bypass, MAT relocate (launch w/ fan & heater On at 157deg F).
Ignition - HyperTech coil/cap/rotor, SplitFire cut [email protected]", TPS @.64/4.74Vdc, base timing @+15deg.
Fuel - AFPR w/ BLM cell(1)-cell(15) @122.
60ft - 2.04 sec
1/4 mi - 13.82 sec, 98.56 mph BHP - 250hp
Conditions - 3378 lbs, 1,000 rpm launch, 62deg F, 56%RH, 30.13 Baro
Normalized 1/4mi - 13.86 sec @98.1 mph, BHP - 247hp
Exhaust - Custom Mufflex mandrel-bent SS front Y-pipe: 2 1/2" into 3".
- Random Technology hi-flow cat.
- TPIS mandrel-bent 3 1/2" into 3" rear Y-pipe with custom FlowMasters.
Ignition - Base timing back to +8deg.
60ft - 2.04 sec
1/4 mi - 13.50 sec @101.4 mph BHP - 275hp
Conditions - 3378 lbs, 1,100 rpm launch, 55 deg F, 64% RH, 30.25 Baro
Normalized 1/4 mi - 13.56 sec, @100.9 mph, BHP - 270hp
Intake - SLP Ram Air intake w/ scoop opened an additional inch.
Parasitic - Remove water pump pulley "Frisbee", March underdrive crank pulley.
Chassis - MAD rear lowering kit, 1 1/4" drop.
Weight Rduction - Spare tire and jack delete, reduced weight by about 50lbs.
60ft - 1.98 sec
1/4 mi - 13.47 sec @101.8 mph BHP - 276hp
Conditions - 3360 lbs, 900 rpm launch, 77 deg F, --% RH, 28.72 Baro
Normalized 1/4 mi - 13.26 sec, @103.3 mph, BHP - 289hp
Valve Train - Comp Cams 1.6:1 ProMagnums w/ 7/16" studs, springs w/ Ti retainers.
Ignition - Upgrade ECS to GM P/N 16038331.
ECM - HyperTech Stage II, for 1987 L98 automatic.
Exhaust - Ported stock manifolds.
Drag Strip Data
60ft - 2.00 sec
1/4 mi - 13.24 sec @103.2 mph BHP - 298hp
Conditions - 3356 lbs, 900 rpm launch, 47 deg F, 31% RH, 29.59 Baro
Normalized 1/4 mi - 13.24 sec, @103.2 mph, BHP - 298hp
DynoJet 248H Test Data
Best Dyno Pull - 247.4 rwhp @4,500rpm Torque - 324 ft-lb
Fuel/Air - 12.6-12.6:1 at WOT AFPR @ 48psi
Drive Train Loss - 17%
Intake - Siamese stock base with 1" deep x 1" high cut between adjacent base runners.
Drag Strip Data
60ft - 2.05 sec
1/4mi - 13.52 sec @104.38 mph BHP - 298hp
Conditions - 3355 lbs, 900 rpm launch, 74 deg F, 23% RH, 28.93 Baro
Normalized 1/4 mi - 13.46 sec, @104.76 mph, BHP - 301hp
Dyno Pull - 243.1 rwhp @4,700rpm Torque - 308.0 ft-lb
700R/4 - Rebuild by Grant Transmissions, West Haven, CT; shift kit; shift points raised
to 1-2 = 5,200rpm & 2-3 = 5,800rpm (stock was 4,800rpm)
TC - 12" lockup, 2,000rpm stall (stock was 1,500rpm stall)
Drag Strip Data
60ft - 1.83 sec
1/4 mi - 13.07 sec @102.8 mph BHP - 284hp
Conditions - 3342 lbs, 1,700 rpm launch, 53deg F, 70% RH, 30.09 Baro
Normalized 1/4 mi - 13.12 sec, @102.4 mph, BHP - 280hp
Corvette Forum member "65Z01" - since 04/15/00.
35th Anniversary Corvette Registry "#65 - since 07/15/00.
National Corvette Owners Association - since 08/01/00.
NCM Family Member - since 08/15/00.