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Old School Rotary (Pre-1979) Pre-1979 Discussion including performance modifications and technical support sections

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Old 02-11-2009, 11:02 PM   #1
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Default The JC / Eunos Cosmo Info Thread

Base Specifications of the JC / Eunos Cosmo

1990 / 1991 / 1992

Specifications

Wheelbase: 108.3 inches
Length: 189.6 inches
Width: 70.7 inches
Height: 51.4 inches
Ride Height: ???
Track: Front 59.8 / Rear 59.4
Curb Weight: 3,461 lbs

13B-REW: 19.0 Gal fuel tank
20B-REW: 22.5 Gal fuel tank


There were two engine options available, a 13B-REW and a 20B-REW.
  • 20B-REW - Three-rotor coupled to twin Hitachi turbochargers producing 300hp @ 6500 rpms and 296 lbft @ 3000 rpms
  • 13B-REW - Two-rotor coupled to twin Hitachi turbochargers producing 236hp @ 6500 rpms and 216 lb ft @ 3000 rpms

There was only one transmission option available, a JATCO 4 speed automatic but the ratios vary based on the engine selection.

The gear ratios for the 20B-REW are as follows:
1st: 2.78
2nd: 1.54
3rd: 1.00
4th: 0.69

The gear ratios for the 13B-REW are as follows:
1st: 3.03
2nd: 1.62
3rd: 1.00
4th: 0.69

The differential options also varied based on the engine selection.

For the 20B-REW:
  • Final drive ratio of 3.91
  • Viscous LSD from 1990 to 1991
  • Torsen LSD from 1992 to 1995
For the 13B-REW:
  • Final drive ratio of 4.30
  • Open differential standard from 1990 t0 1993
  • Viscous LSD optional from 1990 to 1991
  • Torsen LSD (optional for 1992 / 1993) from 1992 to 1995

1993 / 1994 / 1995
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Last edited by Whizbang; 02-12-2009 at 12:14 AM..
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Old 02-11-2009, 11:04 PM   #2
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Default

Vin Number Information

The following portions of the vin orient to the engine option.

JC3SE = 13B-REW (Series 1)
JCESE = 20B-REW (Series-1)

JC3S = 13B-REW (Series-2)
JCES = 20B-REW (Series-2)

Paint Code Information

The following is the available colors by year. White was a special order color only and not included on the list, but some where produced in that scheme.

1990
  • Brave Blue
  • Brilliant Black
  • Classic Red
  • Meteor Blue Metallic
  • Passion Rose
  • Passion Yellow Mica (a 200,000 yen option)
  • Silver Mist
  • Titanium Gray
1991
  • Brave Blue
  • Brilliant Black
  • Classic Red
  • Meteor Blue Metallic
  • Passion Rose
  • Passion Yellow Mica (200,000 yen option)
  • Silver Mist
  • Titanium Gray
1992
  • Brave Blue
  • Brilliant Black
  • Classic Red
  • Passion Rose
  • Silver Mist
  • Titanium Gray
1993
  • Brave Blue
  • Brilliant Black
  • Classic Red
  • Passion Rose
  • Silver Mist
  • Titanium Gray
1994
  • Black Forest
  • Brilliant Black
  • Classic Red
  • Creek Blue Mica
  • Silver Stone Mica
1995
  • Black Forest
  • Brilliant Black
  • Classic Red
  • Creek Blue Mica
  • Silver Stone Mica
Production Numbers
  • 1990 - 4,325
  • 1991 - 1,700
  • 1992 - 1,373
  • 1993 - 711
  • 1994 - 435
  • 1995 - 331
Grand total of 8,875 produced.

Numbers based on Engine Option by Vin
  • 13B - JC3SE-100016 - to - JC3SE-120150 24-Feb-90 - 26-Jan-94. Total = 4,536
  • 20B - JCESE-100034 - to - JCESE-120084 23-Feb-90 - 07-Feb-94. Total = 3,568
  • 13B - JC3S - 100001 - to - JC3S - 100520 16-Mar-94 - 22-Aug-95. Total = 380
  • 20B - JCES - 100001 - to - JCES - 100633 23-Feb-94 - 06-Sep-95. Total = 369
Total 13B = 4325 Total 20B = 3937
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Last edited by Whizbang; 02-12-2009 at 03:50 PM..
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