Q: What seats will bolt into the early CRX?
A: Generally speaking, seats can be swapped from
model to model if you stay within the same year. For example, I
used to have 1987 Prelude seats in my 1987 CRX Si. The bolts and
tracks are the same width. Honda changed the seat track width on
nearly all their cars in 1988, so later seats need to be modified
to fit.
Some people have installed the more comfortable later model CRX
seats by relocating the seat rails to fit the mounting location
of the early CRX. The only draw back is that the new seats are a
little taller and headroom is compromised.
Q: I want a deeper air dam for my Si or
DX.
A: The HF air dam is 1/2" deeper and about 1/4"
narrower than the Si/DX air dam. The difference in width is not
enough to notice.
Engine Questions
Q: I want to make my car a hybrid and install
a bigger, stronger engine.
A: At the top of the family tree for the D Series,
DOHC 1600cc, 16-valve engine is the JDM spec ZC engine of 135 hp.
Next in line was the Euro-spec D16A8 which makes about 120 hp. In
the US, we got the D16A1 Black Valve Cover version in the 1988-89
Integra, with 118 hp. And at the end of the line is the D16A1 Brown
Valve Cover version in the 1986-87 Integra with 113hp. Many people
refer to all 1986-89 Integra engines as being a ZC, but this is
not technically correct. ZC is Honda's term for the top rated version
of its engine. If you can find all of the JDM parts, you could build
a USDM D16 into a ZC. But those parts are rare and probably expensive.
The Brown and Black valve cover version of the DOHC D16 engine are
very easy to install. Basically, cheap, used Integra parts bolt
straight into a 1st Gen CRX. HAS Sport makes a kit to install the
later B Series engines into the 1st Gen, but it is expensive.
The 88-89 Integra engine (black valve cover) is slightly more powerful
than the 86-87 models for two reasons: Better intake manifold &
it has domed pistons. That's it, everything else besides the ECU
& distributor is the same. The 86-87 Integra rods are a little
thicker than the 88-89's rods. Parts are interchangeable between
all versions of the D16.
The BROWN Valve cover is equipped with:
-FLAT-TOP pistons
-Thick rods
-Square styled intake manifold
-Vacuum advance ignition with external coil
The BLACK Valve cover is equipped with:
-Domed pistons
-Slightly lighter rods
-Rounded intake manifold.
-Electronic advance distributor with internal coil.
ACTUAL SWAP INFO:
Engine Mounts (total of 3 mounts on 84-87 Civic/CRX's):
Use the stock Civic/CRX mounts on the rear cross member & front
timing-belt side.
Use an 86-89 Integra tranny mount for the tranny. The Civic/CRX
tranny mount will make the motor sit crooked if you use it, so don't.
Axles:
Use a complete set of 86-89 Integra axles including the intermediate
shaft.
Knuckle/hub assembly: In order to use an 86-89 Teg' engine + transmission,
you have to use the
86-89 Integra knuckle/spindle assembly so that you can utilize the
Integra 3-piece axles.
The 86-89 Integra axles DO NOT plug into 84-87 Civic/CRX knuckle/spindle's.
Shift linkage:
Use a complete 86-89 Integra's shift linkage.
Wiring harness:
Use the 1st Gen CRX Si's wiring harness. Plugs right into the 87
Integra
sensors, injectors, & distributor.
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