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1990 Chevrolet Camaro
Production:
12,743 V6
22,243 V8
65 Players Challenge Series Cars
34,986 total.
VIN Example: 1G1FP23EXLL100001 thru 1G1FP23EXLL134986
* Fifth digit is model level: P= Camaro (all models)
* Sixth digit is body style: 2=Hatchback Coupe, 3=Convertible.
* Eighth digit is engine code: F=305ci V8 (LB9) E=305ci V8 (L03) T=191ci V6 (LH0) 8=350ci V8 (B2L)
* Ninth digit is check digit and varies.
* Tenth digit is model year: L=1990
* Eleventh digit is assembly plant code: L=Van Nuys
* Last six digits increased one for each car built.
Dimensions
| Length: 192.0 inches | Height: 50.4 inches | Width: 72.8 inches | Wheelbase: 101.0 inches |
The 1990 model year was only a half year of production due to Chevrolet not renewing the IROC contract, no IROC-Z's were produced after 12/31/1989. Instead, the 1991 Camaros were introduced early during last half of the 1990 model year.1990 IROC's and RS's are easily identifiable: 1990 was the first year for the updated interior which included drivers side airbag, redesigned instrument panel, yellow lettering on dash, rounded controls, etc. So 1990 Chevy Camaro IROC's are the only '90 Camaro IROC's with the new interior. 1990 RS's are the only RS's with the new interior and the older valances (before the new `scooped' side valances).The LB8 2.8 liter V-6 was replaced by an increased displacement 3.1 liter LH0 V-6.In 1990, the base engine for the IROC was finally the LB9 TPI 305 rather than the base LO3 V-8. However, G92 had to be specified now to get the better cam/230hp LB9 motor in the 5 speed LB9 IROC-Z. Previously, all 5 speed LB9 IROC-Z's got the higher output LB9. One other difference between a 1989 5.7 IROC and a 1990 5.7 IROC are the pistons. The 350 (only) received lighter weight pistons thus a slight horsepower increase of 240 (1989) to 245 (1990). In 1990, TPI Camaros switched from MAF air metering systems to MAP systems. This eliminated the mass airflow (MAF) sensor.IROC-Z convertible now came standard with 16 inch wheels and P245/50ZR-16 tires.G80 limited slip differential became standard equipment on IROC-Z.The Borg-Warner HD rear end was dropped and replaced with the old 7.625 (7 5/8) inch rear end. Because the Borg-Warner axles were no longer being used for the G92 option, optional axle ratios changed slightly: LB9 305 TPI 5 speed went from 3.45 (1989) to 3.42 (1990) and the B2L 350 TPI went from 3.27 (1989) to 3.23 (1990).
Content of G92 was expanded and purchased as a `performance package' rather than requiring other options. G92 could be ordered two ways: with or without air conditioning. Ordering G92 `without air conditioning' (C41 standard heater) added the 1LE performance package. G92 performance packages were only available with B2L or LB9/5 speed. All 350 IROC-Z's were required to have one of the G92 packages in 1990.
G92 with air conditioning (C60):
- Optional axle ratio (305/3.42, 350/3.23) Rear disc brakes (J65) Performance exhaust system (N10) (dual catalytic converters) Engine oil cooler (KC4)
- 5.0 liter TPI (LB9) with 5 speed gets revised cam for 230hp rating.
G92 with out air conditioning (C41) in addition to above adds 1LE performance package consisting of:
- Fog lamp delete Aluminum driveshaft (JG1) Aluminum spare wheel with smaller spare tire (N64) Larger (11.86 inch) front rotors and PBR Australian built HD front dual piston aluminum calipers
- Special swinging fuel pickup in gas tank and special 18 gallon baffled fuel tank for fuel pickup down to .5 gallon reserve to prevent fuel starvation in hard cornering
The 1989 1LE special deflected disc shocks were dropped for the 1990 1LE IROC-Z and standard IROC-Z gas shocks were used.
34 1990 1LE LB9 (305 TPI) IROC-Z's were built. 28 1990 1LE B2L (350 TPI) IROC-Z's were built
| RPO | Description | Qty | Retail |
| 1FP87 | Camaro RS Coupe, 6-cylinder | 28,750 | 10,995.00 |
| 1FP87 | Camaro RS Convertible, 8-cylinder | 729 | 16,880.00 |
| 1FP87 | Camaro IROC-Z Coupe, 8-cylinder | 4,213 | 14,555.00 |
| 1FP87 | Camaro IROC-Z Convertible, 8-cylinder | 1,294 | 20,195.00 |
| 1LE | Special Performance Components Package | 62 | * |
| AG9 | Power Seat, driver side | 4,876 | * |
| AM9 | Seat Back, split folding rear | 20,840 | 50.00 |
| AU3 | Power Door Locks | 32,591 | 175.00 |
| A31 | Power Windows | 22,497 | * |
| A90 | Power Hatch Release | 23,410 | 50.00 |
| B2L | Engine, 350ci, 245hp V8 (IROC-Z coupe only) | 2,415 | 300.00 |
| B34 | Floor Mats, carpet insert, two front | 32,673 | * |
| B35 | Floor Mats, carpet insert, two rear | 32,673 | * |
| B84 | Moldings, body side | 32,856 | * |
| CC1 | Roof Panels, removable glass | 12,476 | 866.00 |
| C49 | Defogger, rear window | 19,436 | 160.00 |
| C60 | Air Conditioning | 34,247 | 805.00 |
| DC4 | Mirror with Dual Reading Lamps | 32,963 | * |
| DE1 | Louvers, rear window | 1,855 | 210.00 |
| DC7 | Mirrors, electric twin remote | 8,188 | 91.00 |
| DX3 | Decal and Stripe Delete (credit) | 359 | -60.00 |
| D42 | Cover, rear compartment cargo area | 20,626 | * |
| G80 | Rear Axle, limited slip | 5,507 | 100.00 |
| G92 | Rear Axle, performance (IROC-Z coupe only) | 2,710 | 466.00 |
| J65 | Brakes, power front disc and rear disc | 2,710 | 179.00 |
| KC4 | Cooler, engine oil (IROC-Z coupe only) | 2,710 | 110.00 |
| K05 | Heater, engine block | 828 | 20.00 |
| K34 | Speed Control, with resume | 32,579 | * |
| LB9 | Engine, 305ci, 210hp (no cost with IROC-Z) | 3,092 | 745.00 |
| L03 | Engine, 305ci, 170hp (for RS Coupe) | 16,736 | 350.00 |
| MX0 | Transmission, automatic with overdrive | 31,630 | 515.00 |
| N96 | Aluminum Wheels, 16 inch | 4,004 | 520.00 |
| QLC | Tires, P245/50ZR16 blackwall | 4,004 | * |
| QPH | Tires, P215/65R15 all season blackwall | 29,479 | * |
| QYZ | Tires, P215/65R15 blackwall | 1,503 | * |
| R7U | Players LTD. / GM Motorsport Sales Control Code | 65 | Special Order |
| UL5 | Radio, delete | 221 | -165.00 |
| UM6 | Radio, stereo, cassette, clock, seek/scan | 31,421 | * |
| UM7 | Radio, stereo, clock, seek/scan | 1,098 | * |
| UU8 | Radio, stereo, Delco Bose, clock, seek/scan | 994 | * |
| UX1 | Radio, stereo, cassette, clock, s/s, equalizer | 1,249 | * |
| U1C | Radio, compact disc system with clock | 3 | * |
| U75 | Power Antenna | 1,275 | 70.00 |
| YF5 | Emission Equipment, required for California | 6,345 | 100.00 |
| FCAB | RS Coupe Base Group | - | nc |
| FCA1 | RS Coupe Group 1 | - | 1,410.00 |
| FCA2 | RS Coupe Group 2 | - | 1,782.00 |
| CCAB | RS Convertible Base Group | - | nc |
| CCA1 | RS Convertible Group 1 | - | 1,040.00 |
| CCA2 | RS Convertible Group 2 | - | 1,640.00 |
| FZAB | IROC-Z Coupe Base Group | - | nc |
| FZA1 | IROC-Z Coupe Group 1 | - | 865.00 |
| FZA2 | IROC-Z Coupe Group 2 | - | 1,759.00 |
| FZA3 | IROC-Z Coupe Group 3 | - | 2,143.00 |
| CZAB | IROC-Z Convertible Base Group | - | nc |
| CZA1 | IROC-Z Convertible Group 1 | - | 865.00 |
| CZA2 | IROC-Z Convertible Group 2 | - | 1,640.00 |
| CZA3 | IROC-Z Convertible Group 3 | - | 2,001.00 |
| Paint/WA Code | Exterior | Qty | Models | Interiors |
| 23 / 9184 | Medium Maui Blue | 2,539 | Rs-Rsc | Bk-G |
| 40 / 8554 | White | 6,878 | I-Ic-Rs-Rsc | Bk-Br-G-R |
| 41 / 8555 | Black | 5,125 | I-Ic-Rs-Rsc | BK-G-R |
| 75 / 9540 | Brilliant Red | 4,420 | I-Ic-Rs-Rsc | Bk-Br-G-R |
| 81 / 8774 | Bright Red | 8,168 | I-Ic-Rs-Rsc | Bk-Br-G-R |
| 87 / 9536 | Gunmetal (Med Gray) | 2,787 | Rs-Rsc | BK-G-R |
| 98 / 9591 | Bright Blue | 5,069 | I-Ic-Rs-Rsc | Bk-G |
Interior Codes: 19B=Bk-sc, 19C=Bk-cc, 66B=Br-sc, 66C=Br-cc, 662=Br-le, 73B=R-sc, 73C=R-cc, 732=R-le, 82B=G-sc, 82C=G-cc, 822=G-le.
Abbreviations: Bk = Black, Br = Light Brown, cc = custom cloth, G = Gray, I = IROC Coupe, Ic = IROC Convertible, le = leather, R = Red, RS = RS Coupe, Rsc = RS Convertible, sc = standard cloth.
| RPO | Config | Bhp @ rpm | Torque @ rpm | Induction | C/R | CID/liters | Applications |
| LH0 | Ohv V6 | 140 @ 4400 | 180 @ 3600 | MFI | 8.5:1 | 191/3.1 | RS* |
| L03 | Ohv V8 | 170 @ 4000 | 255 @ 2400 | TBI | 9.3:1 | 305/5.0 | RS, IZ* |
| LB9 | Ohv V8 | 210 @ 4400 | 285 @ 3200 | TPI | 9.3:1 | 305/5.0 | IZ (w/a/t) |
| LB9 | Ohv V8 | 230 @ 4400 | 300 @ 3200 | TPI | 9.3:1 | 305/5.0 | IZ (w/man trans) |
| L98 | Ohv V8 | 245 @ 4400 | 345 @ 3200 | TPI | 9.3:1 | 350/5.7 | IZ (auto only) |
* = base engine; TBI = throttle-body injection; TPI = tuned-port injection; MFI = multi-port fuel injection; RS = Rally Sport; IZ = IROC Z-28.
| BLC: 305ci, mt | BLJ: 305ci, at | BSH: 191ci, mt |
| BLD: 305ci, at | BMK: 350ci, at | BTJ: 191ci, at |
| BLF: 305ci, mt | BPT: 191ci, mt,uu | |
| BLH: 305ci, mt | BRU: 191ci, at,uu |
Abbreviations: at = automatic transmission, ci = cubic inch, mt = manual transmission, uu = uncertain usage
5 Speed Manual - Warner Gear
| Chevy # | RPO |
| 10079857 | MB1 |
| 10079855 | MK6 |
| 10079856 | M39 |
| CID | Comments | Code |
| 192 | MD8 | FB |
| 305 | MD8/TBI | FT |
| 305 | MD8/MFI | FZ |
| 350 | MD8 | FU |
| 350 | MD8 | FK |
| 350 | MD8 | FX |
| 2PM | 3.23:1 Locking | 6HP | 2.73:1 | 8HF | 3.08:1 Locking |
| 2PN | 3.42:1 Locking | 6HT | 2.73:1 Locking | 8HJ | 3.23:1 |
| 6HB | 3.08:1 Locking | 6PM | 3.23:1 Locking | 8HK | 3.08:1 |
| 6HE | 2.73:1 | 6PN | 3.42:1 Locking | 8HL | 3.45:1 |
| 6HE | 3.42:1 | 8EV | 3.27:1 Locking | 8HP | 2.73:1 |
| 6HF | 3.08:1 Locking | 8EW | 3.45:1 Locking | 8HT | 2.73:1 Locking |
| 6HK | 3.08:1 | 8HB | 3.08:1 Locking | 9ET | 2.77:1 Locking |
| 6HL | 3.42:1 | 8HE | 2.73:1 Locking |