I will write something up to combine my own experience and the info from the member that first did the swap/write up on it.

Just to help fill in some of the missing information. 4ZE1 Cylinder head volumes. Pre 1993 Hemispherical chamber - 74cc 93+ "Kindey" shaped chamber (no air injection ports) - 58.5cc (deeper dish pistons were used to maintain lower compression. 4ZS1 Cylinder head chamber volume is close to ...

Wow, I missed a lot from not paying attention to this site for a year. Beautiful work with the car. I will probably be messaging you a lot when I get to the restoration/body work side of things. I know I will be messaging you in the future about the seat mods, at 6'5'' (195.6CM) tall, room has alway...

This is the exact reason I want to media blast my whole car down to bare metal. My car spent most of its life in the southern US, and the last couple of years in the salty north, which caused a little rust to start in a few places. Nothing bad, but I have spotted it here and there. I want to re-pain...

Good to hear from you again. I knew about your back issue on the 'zone, but it's good to see you're back (pun intended) on track. I'll be paying closer attention to your project because I'll be undertaking a similar route with my own 2.6 conversion but running on E85 fuel. You don't mention what ty...

Double Post...

Anyway, all of that is so I can get the engine/trans in place to start fabricating the turbo manifold (and possibly intake, at least a plenum). I've been collecting lots of goodies while I was down and injured. Nothing too fancy or high tech, but it will get the job done and get this project started...

I disappeared for a while. I had a back injury last June and only have recently recovered enough from my surgery to start working on my car again. Anyway, I figured I would fill you in on what I have been up to the last couple of weekends now that I can get to work again. I will try to keep the pict...

I translated this stuff from a Japanese website a couple of years ago. I posted it up on Isuzone, but there are so few first gen members on there that it was largely overlooked.

Some of the translations are quite literal.

This Info is specifically for the 88-89 Cars with the Lotus tuned suspension.

Coil Spring Rate [kg/mm]
Type Year system

IMPULSE 88+
Front: 4.3
Rear: 2.3 - 4.8
Remark: HBL

Coil Spring spec (HBL - Handling by Lotus)

HBL(MT) 88+

FRONT:
Free Length(mm) 400.0
Wire(mm) 14.5
Outside(mm) 116
Number of active coils:9.83
Total number of coils:11.58
Identification Color: no info

REAR:
Free Length(mm) 303.5
Wire(mm) 10.8
Outside(mm) 123.6
Number of active coils: 5.5
Total number of coils: 7.25
Identification Color: no info

Shock Absorber rate [ (0.3m/sec時)kg ]

HBL
Year 88+

Front
Extends: 82
Shrinks: 30

Rear
Extends: 63
Shrinks: 64

[kg/cm^2]
20.6(F,R)

sway bar. mm
23 front
20 rear

Suspension Stroke [ mm ]
type: HBL
Year: 88+
Front
Stroke- 143
Most expansion- 390
Most reduction length- 247
Rear
Stroke- 158
Maximum expansion- 748
Minimum length- 320

Front Alignment
Type: HBL
year: 88+
toe in: 1mm
caster: 4°30'
camber: 0°00'


Here are the specifications for the Irmscher suspension.

Coil Spring Rate [kg/mm]

IMPULSE
Front: 4.7
Rear: 1.4 - 7.2
Remark: Irmscher

Coil Spring other spec

FRONT:
Free Length(mm) 383.0
Wire(mm) 14.0
Outside(mm) 101.1
Number of active coils: 7.93
Total number of coils: 9.68
Identification Color: No info
REAR:
Free Length(mm) 339.5
Wire(mm) 9.2￾`12.5
Outside(mm) 106
Number of active coils: 7.63
Total number of coils: 9.13
Identification Color: No info

Shock Absorber rate [ (0.3m/sec時)kg ]

Form: Irmscher

Front
Extends: 87
Shrinks: 35

Rear
Extends: 130(92)
Shrinks: 38(38)

[kg/cm^2]
no data


sway bar. mm
25 front
17 rear

Suspension Stroke [ mm ]
type: HBL
Year: 88+
Front
Stroke- 152
Most expansion- 397
Most reduction length-245
Rear
Stroke- 197
Most expansion- 488
Most reduction length- 291


Front Alignment

Type: Irmscher
toe in: 1mm
caster: 4°30'
camber: 0°45'