CSPCRX

Yes it will mount to the CRV and TSX no trouble

Correction made above RDX thermostat housing, fixed above  Sorry about that.

the “manifold” are you talking about the upper coolant manifold?

Coolant leaks are a pain.  My B16 was plagued with them and I always try and keep the cooling system as simple as possible for that very reason.

My water pump and water pump housing came off of a 2005 CRV and bolted right up no issues at all. 

The RDX thermostat housing comes from a 07-12 K23 Acura RDX.

The alternator can be from any any K20 or K24a or a2.  Just make sure it works with the water pump housing you get.  It was more of an issue when we were trying to use the AC/PS delete and alternator relocation kit and it had to work with the pulley.  Since we didn’t use it it mattered less.

I am using a stock tensioner now with the K tuned idler pulley kit.

hope this helps answer your questions.

been putting some miles on the car to identify any issues before hitting the track.  Found some coolant leaks and had to tighten up some clamps.  Ripped around this morning for about 20-30 minutes without any leaks!  Was also watching IATs (Air Intake Temps) and noticed they were above ambient.  Confirms I need to build a block off and duct like I had on the B16.

Was having an odd cooling fan issue.  Relay was making a buzzing sound and fan was never cycling, would come on at 205 degrees and just stay on.  205 is where the ECU tells it to turn on.  It’s important to understand I am using a fan trigger from the thermo switch in the bottom of the radiator as well as from the ECU.  The idea is you rely on the thermo switch but have the ECU signal as a backup at a higher temp then the thermo switch.

We tapped into the factory wiring and added a relay.  Turns out it wasn’t wired correctly.  Now the fan turns on at 196 degrees from the thermo switch as it should.  Also buzzing isn’t happening any longer and the fan is now actually cycling.  Fan output is higher as well.

Just shaking the bugs out of things.  I knew I would find some once things were up and running.  

Weight has been a big concern for many over the years when it comes to swaps in these cars.  So I dug up some data for comparison sake on where there car was and is.

First weight is with the EW3 engine in SCCA Solo2 trim.  Meaning super light 13x9 wheels that weighed less than 9lbs each.  No Auto Power roll cage, you can actually see the weight increase in the rear of the car between the EW3 and B16 from it, no race harnesses and a few other small things.  That’s what caused the large weight change between EW3 and B16.  These weights are all without driver.

 86 CRX Si swap weights no Driver by Victor M, on Flickr

i do not have EW3 data with driver, so here is the data with my big butt in the car.  I do find it interesting how the drivers weight really impacts the rear more than the front, notice the front to rear distribution change between with and without driver.  Going to find a way to shave a few pounds off the front of the car and move them to the right rear corner and work on corner balancing the car

86 CRX Si swap weights with driver by Victor M, on Flickr