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John's 87 Corvette

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Last Update: 04/02/05


Specs: 1G1YY2187H5102852,107k mi., L98 with the GM Hotcam Kit, ported/siamesed TPI, Level II 700R4, steel drive and half shafts*, Dana 36~3.54, base suspension, Goodyear GS-C tires, 3135 lbs.** on a full tank of gas w/o driver and spare tire/jack. Additional modifications are described below in the Operation summary.

*= auto trans and non power seats got the steel shafts
** = track scale measures in 5 lb. increments.


My RPO Codes:
AR9: Base European style reclining seats
BGR: Bowling Green Assy.
C60: Manually controlled A/C
DG7: Remote operated outside electric mirrors
D74: Illuminated driner vanity mirror ~ removed from vehicle
D9A: Speedometer sensor 25007224
E5Z: Delete speedometer adaptor
GM1: Rear axle 2.59 ratio ~ replaced with 3.54
K34: Cruise Control
K68: Generator 105 amp
L98: TPI engine 5.7l V8
MD8: Automatic Transmission 700R4
MX0: Automatic overdrive
NA5: Emission system ~ removed EGR and AIR
PY3: Wheels, 16x8.5 cast aluminum
QZD: 16" wheels with P255/50 VR16 ~ replaced w/ '95 sawblades P255/45/17 & P285/40/17
UM7: Radio, am/fm stero, seek, scan, clock, ETR??
V73: Vehicle document
1AY: Dealer ordered car, stock
62C: Trim Combo, cloth lt. saddle
62I: Interior trim, lt. saddle
74U: Dark Red Metallic paint


OPERATION: Into the void ~ 2000

Cut Lid, K&N filter, ported air filter base, MAF screens are gone, Throttle Body coolant bypass, TPS set @.58, base timing set to 6*, stock fuel pressure ~ 37.5

Debrief:
Mission accomplished. The modifying has started. Along with a tune-up, avg. 1/4 mile time and speed is 14.35 @ 97 mph. No dyno done in this operation.

OPERATION: War Machine ~ 2001


MAT relocated, 160^ thermostat, Marcho Polo chip, TPS set @.64, base timing adv. to 8*, fuel pressure is still stock, cut back AC Delco 3's gapped @ .045, Red Taylor Spiro Pro Wires, silver DEI boot covers, Dynomax Ultra Flow S.S. mufflers and the Walker rear balance tube Y-pipe. Spare tire and jack bag have been removed.

Debrief:
Mission accomplished! This is around the time I officially started to call my Corvette the "War Machine". These mods added a few more horses but my blown shocks and rotted suspension bushings really hindered my 1/4 mile time and speed. Avg. 1/4 mile time and speed is 14.2 @ 98 mph. Dyno shows the War Machine made an avg. of 210rwhp and 319rwtq!

OPERATION: Rocket Ride ~ 2002/2003

Cleaned, ported and siamesed TPI, (plenum, runners and intake manifold), GMPP Hot Cam kit w/ 1.6 rockers, Comp Cams pushrods, new valve stem seals, Heads Cleaned (they were ferociously carboned up) NGK plugs gapped @ .035, new stock wire retainers, AFPR, fuel injector cleaning (FP TBA Later), (18k) Flex-A-Lite tranny cooler, removed EGR and AIR, Coated Hedman (non-air injection) headers (O2S added to collector), Catco cat, AIR eliminator pully, P.I. Vigilante 2800 stall (Thanks Nick D.), Trans Eddie's 700R4 Stage II build, PROM re-program by Craig Marcho, non-Z51 Bilstien shocks, Energy Suspension front/rear bushing kit, new u-joints, Richmond 3.54 rear gear, and a debris screen to block radiator area. I have a General 2 1/2lb. fire extinguisher. I'm putting my already light Corvette on a diet. Underhood lights and hood assist cylinders removed and most of the modifications in this operation resulted in weight loss. See weights below. I'm using Redline fluids.

Mission still under way
My goals after modifications are done are to get the curb weight down to 3,135, dyno 260rwhp and make a 13.4 second 1/4 mile pass. If I get any better than this I will be more than happy!
Aftermarket parts bought from Summit Racing.
GM parts bought from Superior Chevrolet.
Corvette Parts bought from Zip.
Injectors serviced by Cruzin Performance.
I use PowerHouse Performance. These guys ROCK!!


I'm going to jot down some weights on the parts that I can from my 1987 Corvette. All parts are stock unless noted otherwise. My scale measures in increments of 1/2 lb.

Exhaust manifolds are 7.25 lbs. ea.
Hedman Hedders long tube non-emission is 17.5 lbs.
Front Y w/ mini cats is 22 lbs.
Front Y w/o cats and cut to fit the heaeders is 6.5 lbs.
Walker rear Y and Dynomax U.F.S.S. mufflers is 43 lbs.
Catalytic convertor is 10.5 lbs
Catco Catalytic convertor is 7.5 lbs.
Chrome starter is 17.5 lbs
Torsional balancer is 8.5 lbs
Flex-A-Lite 18k trans cooler (dry) is 3 lbs.
Ported TPI w/o plenum extention is 27.5 lbs.
Radiator (dry) is 9 lbs.
A/C condensor (dry) is 5 lbs.
Magnesium valve covers are 2 lbs. each
Timing cover is 1 lb.
Smog pump w/pully is 7 lbs. and w/o pully it's 4.5 lbs.
Misc. A.I.R. parts is 3.5 lbs.
BPP AIR Eliminator kit is 3 lbs.
Torque Convertor (wet)is 45.5 lbs.
P.I. Vigilante Torque Convertor (wet) is 31.5 lbs.
Driveline Support Beam is 7.5 lbs.
Steel Driveshaft is 10 lbs.
TH700R4 transmission w/ a Trans Eddie's Level 2 is 135 lbs. (dry)
Altec rock guards, set of 4 is 2 lbs.
Pushrods are 2.5 lbs.
Comp cams pushrods 7807-16 is 1.5 lbs
Fan and motor w/o shroud is 6.5 lbs.
105 amp alt. is 10 lbs.
Water pump is 7.5 lbs.
48mm TB is 2.5 lbs.
HEI Distributor is 5 lbs.
A/C compressor w/ idler pully is 21 lbs.
Air filter base with K&N and cut lid is 6 lbs.
Taylor spark plug boot covers is 1 lb.
Fuel rail w/ stock FPR and cold start injector is 4 lbs.
Rocker arms w/ nuts are 6 lbs.
Crane Gold rockers 1.6 is 7 lbs.
EGR valve is 1 lb.
1987 Corvette sawblade wheels both 8 and 9 inch sizes are 24.5 lbs.
Underhood lights for the pair is 1.5 lbs.
General 2 1/2lb. fire extinguisher is 5 lbs.


The performance links below will not come up as a separate page. Hit the back button to come back to my War Room or open as a separate page.

Best 1/4 mi. time, May 26, 2001: 14.05 @ 97mph

Avg. 60ft.: 2.10 .

Dynoed at Anderson Motorsports Inc. in Joliet Il. on Oct. 20, 2001. 210.3 hp / 333.4 ft-lbs. @ da wheels

Top speed attained has been 158 MPH!! I was only turning 5200 rpm's too.

Passed Illinois "AIR TEAM" Inspection in 1999, 2001, 2003


Picture gallery of my Corvette and modifications along with my internet submitted photos of other Corvettes from 1953 - 2002!





1987 Corvette Facts

·Production of 30,632 Corvettes includes 20,007 Coupes and 10,635 Convertibles.

·Friction reduction from roller valve lifters (new for 1987) resulted in a power increase to 240hp, up 5hp from 1986's aluminum-head engines and totque twisted up again to a stump pulling 345 lbs/ft. Rocker arm covers recieved raised rails to forestall oil leaks and spark plugs moved closer to the center of each combustion chamber.

·Center sections and radial slots of 1987 wheels were painted argent gray. 1986 wheel centers were not painted. Centers and radial slots for 1984 and 1985 were painted black.

·Convertibles and early coupes had outside mirror air deflectors.

·Chevrolet planned an RPO UJ6 low tire pressure indicator option, but the $325 option was on constraint during 1987 due to false signaling problems. However, Chevrolet records show forty-six units sold.

·The RPO Z52 package was refined to include structural enhancements developed for the convertible, and a finned power steering fluid cooler.

·A new RPO Z52 "sport" handling package combined elements of Z51 with the softer suspension of base models. RPO Z52 included the radiator boost fan, Blistein shock absorbers, engine oil cooler, heavy-duty radiator, l6x9.5-inch wheels, faster 13:1 steering ratio, larger front stabilizer bar (except early production), and the convertible-inspired structural improvements for coupes. Z52 was available with coupes or convertibles, automatic or manual transmissions.

·The overdrive-engage light was moved from the center-dash area (1984-86) to an easier-to-view location within the 1987 tach display.

·The Callaway Twin-Turbo engine package introduced in 1987 was not a factory-installed option, but could be ordered through participating Chevrolet dealers as RPO B2K. Fully assembled Corvettes were shipped from the Bowling Green Corvette plant to Callaway Engineering in Old Lyme, Connecticut., for engine and other modifications. The 1987 Callaway had ratings of 345hp and 465 lbs.-ft torque, and reached a top speed of 177.9 mph with .60 overdrive gearing. The first four 1987 Callaways used replacement LFS (truck) shortblocks, but subsequent cars had reworked production Corvette engines. All 1987 Callaways had manual transmissions and none were certified for California sale. Of 184 twin-turbos built in 1987, 121 were coupes, 63 were convertibles.

·Electronic air conditioning control (RPO C68) became an available option for coupes and convertibles in 1987; in 1986, it was coupe-only.

·ABS became standard, a sensible feature for a car that could top 150 mph.

·Major componenets get ID marks to twart thieves.

·New 1987 convenience options included and illuminated vanity mirror (D74) for the driver's visor, and a passenger-side power seat base (AC 1). Twin remote heated mirrors became available for convertibles as RPO DL8. The heated mirrors were included with the heated rear window in the RPO Z6A defogger option for coupes.

Looking for more technical information?

Thank you for dropping by!

I love this car!! Even with it's flaws. Here's my Corvette story.... I always liked the Corvette. I grew up in a town where that kind of car was not seen very often. You know, the kind of car that only the rich can afford. I watched in awe at every Corvette I ever got to see. One day at the Chevy dealer I was getting a used car. As the salesman went to do his "check with the manager" deal, I saw a shiny new Yellow ZR1 sitting on the showroom floor (away from the used section I might add) and my mouth started watering in anticipation. I opened her up and sat my rear in that nice soft leather. My imagination went wild as I thought I had climbed into a Military fighter plane! The salesman came back and I asked him how much for the Vette? His reply was {laughing}"Too much for you to afford!"

Well the years go by and I get smarter. I realize while looking for another car that the Corvette was actually affordable. It wasn't some car that stayed at 35 or 40 thousand dollars no matter how old it is. I really loved that yellow ZR1 but a ZR1 was not in my forecast anytime soon. I searched around for Dark Red and found a few but some were out of my price range and others were just down right beaters. The 87 I have in my possesion now was just a few steps from being a beater herself. It's been in a rear end wreck and failed emission testing on 4 occasions. I got her and started to get to work right away. Tires, MAF, and exhaust were the biggies. Then came the forum and modding. She's fast now and will only get faster. I still to this day have a hard time believing that I own a piece of American Heritage and I'll do my best to keep her from another wreck, poor girl.


The van is a Dodge 1998 1500 Conversion. It has 127" wheelbase and a Magnum 318 c.i. V8. Only mods are window vent shields, a K&N filter and Water Wetter in the radiator. I put the K&N in mostly for gas milage sake. With a paper filter it gets 10 mpg with the air on and 13 mpg w/o air, if I'm lucky! I will report K&N findings in a month or so. The Water Wetter has helped keep the fan clutch from engaging at all when it's hot out. Coolant temps have not exceeeded 210 degrees with the Water Wetter. ** K&N Update: No increase in gas mileage.


War Machine loves ricers!

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