D16A1 engine swap, part 6
One of the benefits of the D16A1 engine swap is that you get to install
the larger Integra brakes. People often spend a lot of time and money
to make their cars go fast, but equally important is making sure that
your car can slow down! The Integra brakes are 1/2" larger than the CRX
brakes. It is possible to retain the stock CRX brakes (and hubs/knuckles),
but doing so requires some custom axle work. You basically need the Integra
CV joints on the tranny side and the CRX CV joints on the knuckle side. I
strongly recommend just swapping in all of the Integra parts. In addition
to the increased stopping power, you won't have to mess with any CV joint
boots. If you ever have to replace an axle, no custom work will be needed.
Here's another look at the Integra axles, knuckles, and brakes. The
Integra parts are on top. The Integra uses equal length 28mm axles
and an intermediate shaft. The CRX uses unequal length 26mm axles. The
Integra brakes are 9" in diameter. The CRX brakes are 8.5" in diameter.
Swapping in the Integra parts adds about 20 lbs (ouch), but their added
strength and stopping power make it worthwhile trade.
Here are the Integra brake calipers, ready for rebuild. To say that they
were dirty would be an understatement. The pistons were jammed in the bores,
so I ended up hooking the calipers up and pumping the brake pedal to force
Here's a look at the parts needed for a rebuild. The pistons cleaned up
very nicely with my wire wheel. The replacement piston seal and dust boot
were purchased new from Acura. I didn't want take any chances with non-OEM
It took me awhile to figure out the trick to getting the piston to go in
without tearing the boot. Once the piston is near the bottom of the bore,
the dust boot catches the groove at the top of the piston.
Here's the piston pressed all the way in. I lubed the sides of the piston
with brake grease and was able to press it in by hand.
This is the caliper swap in progress. I zip-tied both calipers to the
brake hose support bracket and then quickly moved the hose from the
CRX caliper to the Integra caliper. This would definitely be easier to
do with 2 people.
Here's the Integra setup ready to go on the passenger side. The yellow
line was used for bleeding the system.
Pep Boys sells new spindle nuts for cheap. The old ones were pretty
mangled, so this was cheap insurance. The shop manual calls for 138 ft-lb
of torque on this nut!
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