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[Whizbang]

Base Specifications of the 2nd Generation RX-7

1986/1987/1988

The first year of the new body styling was in 1986. Having developed the new Rx7 for years, Mazda's new release was a vastly different take from what the now aged 1979 to 1985 Rx7 was.

Specifications for NON TURBO

Wheelbase: 95.7 inches
Length: 168.9 inches
Width: 66.5 inches
Height: 49.8 inches
Track: Front 57.1 / Rear 56.7
Curb Weight: 2,625 lbs

16.6 Gallon Gas Tank

Brakes in Front: 9.8" Vented w/ Single Piston Calipers or a 10.9" Vented w/ 4 Piston Calipers
Brakes in Rear: 10.3" Non Vented or 10.7" Vented Single Piston

Wheels: 15"x6" 5x114.3 Aluminum Wheel (GXL, BBS Convertible) or 14"x5.5" 4x114.3 Aluminum Wheel (SE)

*The engine was a 13B six port, not unlike the GSL-SE's 13B engine released two years prior. But there were many small differences that set the motor apart including a better EFI system.

Horsepower: 146 @ 6,500
Torque: 138 @ 3,500
Comp. Ratio: 9.4:1
Alternator: 70A

*There were two transmissions offered, manual and automatic.

Manual
1st: 3.475
2nd: 2.002
3rd: 1.366
4th: 1.000
5th: 0.711 or 0.697 (0.758 UK)

*All US spec Final drives for the manual transmission were a 4.10 ratio while the automatic was a 3.91. UK models used a 4.30 final drive. The Convertible models for 1988 had a 3.91 final drive in spite of only being available in a 5 speed manual. Some models have limited slip, namely the GXL, GTU and Turbo II models.

**Another note is that UK models did not come with power steering at this time. This was added later when the Series 5 models where released.

The 1988 GTU model should not be confused with the 1989 and later GTU models. The 1988 GTU was meant to be a sports package. This included:

• New rear spoiler
• Clutch Type LSD
• No 2+2 option was offered
• No power steering was offered.
• Manual transmission only.
• About 145lbs (66kg) lighter than the Turbo II trim.

Specifications for TURBO

Wheelbase: 95.7 inches
Length: 168.9 inches
Width: 66.5 inches
Height: 49.8 inches
Track: Front 57.1 / Rear 56.7
Curb Weight: 2,845 lbs

16.6 Gallon Gas Tank

Brakes in Front: 10.9" Vented w/ 4 Piston Calipers
Brakes in Rear: 10.7" Vented Single Piston

Wheels: 16"x7" 5x114.3 Aluminum Wheel

*The engine was a 13B four port, turbocharged, inter cooled engine. The first turbo charged rotary engine available in the United States from Mazda.

Horsepower: 182 @ 6,500
Torque: 183 @ 3,500
Comp. Ratio: 8.5:1
Alternator: 70A

*Abroad an automatic transmission was offered, buy state side only a manual transmission was available.

Manual
1st: 3.483
2nd: 2.015
3rd: 1.391
4th: 1.000
5th: 0.762 (0.806 Japan)

*All Final drives for the manual transmission were a 4.10 ratio with a clutch type limited slip.
**The turbo engine was not offered in UK at this time.





1989/1990/1991

After three years of sales, Mazda revamped the Rx7 with changes to the exterior, interior and drive line.

Specifications for NON TURBO

Wheelbase: 95.7 inches
Length: 168.9 inches
Width: 66.5 inches
Height: 49.8 inches
Track: Front 57.1 / Rear 56.7
Curb Weight: 2,625 lbs

18.5 Gallon Gas Tank

Brakes in Front: 9.8" Vented w/ Single Piston Calipers or a 10.9" Vented w/ 4 Piston Calipers
Brakes in Rear: 10.3" Non Vented or 10.7" Vented Single Piston

Wheels: 15"x6" 5x114.3 Aluminum Wheel (GTU, BBS Convertible) or 16"x7" 5x114.3 Aluminum Wheel (GTUs)

*The 13B 6 port engine under went some changes including higher compression, revised spark timing, as well as an electric metering oil pump and a new "VDI" or variable dynamic intake system which produced more power than the previous non turbo engines.

Horsepower: 146 @ 6,500
Torque: 138 @ 3,500
Comp. Ratio: 9.7:1
Alternator: 80A

*There were two transmissions offered, manual and automatic.

Manual
1st: 3.475
2nd: 2.002
3rd: 1.366
4th: 1.000
5th: 0.697

*All Final drives for the manual transmission were a 4.10 ratio while the automatic was a 3.91. For Convertibles a 4.10 final drive became standard for either transmission option. Some models had limited slip but is rare in an 1989 up model.
**The GTU trim become the base model is vastly different than an series 4 (1988) GTU model.
***A tan leather interior option for the convertible was made available in the Japan market only starting in 1990.


Specifications for TURBO

Wheelbase: 95.7 inches
Length: 168.9 inches
Width: 66.5 inches
Height: 49.8 inches
Track: Front 57.1 / Rear 56.7
Curb Weight: 3,003 lbs

18.5 Gallon Gas Tank

Brakes in Front: 10.9" Vented w/ 4 Piston Calipers
Brakes in Rear: 10.7" Vented Single Piston

Wheels: 16"x7" 5x114.3 Aluminum Wheel

*The engine was a 13B four port, turbocharged, inter cooled engine similiar to the previous turbo engine, but with a revised turbocharger and newer electronics, a higher redline and more compression.

Horsepower: 200 @ 6,500
Torque: 196 @ 3,500
Comp. Ratio: 9.0:1
Alternator: 80A

*Abroad an automatic transmission was offered, buy state side only a manual transmission was available.
**In the UK, the turbo engine was adopted while the 13B 6PI was dropped.

Manual
1st: 3.483
2nd: 2.015
3rd: 1.391
4th: 1.000
5th: 0.719

*All Final drives for the manual transmission were a 4.10 ratio with a vicious limited slip

Stock Wheel Information

1987 Turbo II wheel - 16"x7" 23.4lbs


1989+ GTUs / Turbo II wheel - 16"x7" 17.0lbs