Rep Power: 262

Just need to know what type of suspension other people have used and if they stayed with the 5 lug or 4 lug suspension (im sticking with 4 lug someone told me its do-able. Second i have a 05 RSX engine harness this means i need a 05-06 kpro? (i saw the prices they are about 500$ more then the older year kpros....damn i got a good deal on the harness to )

 
Rep Power: 812

yeah kpro has to be the right one for the engine year. suspension idk, i didnt think it matter if you kept 4 lug or 5 lug. ive seen people do both.

 
Rep Power: 262

well im just gunna buy suspension for our em2 i dont know if i had to go rsx suspension i dont really remember reading to much on the DIY about the suspension unless i missed it

 
Rep Power: 412

Em2 suspension is fine.

 
Rep Power: 249

i put RSX springs on my car since our cars like to sag in the rear without coilovers. i also have the 5-lug swap but it doesn't matter either way. i ended up putting civic springs back on and now the back sags again. sucks. props on almost having a k20 though!

 
Rep Power: 262

this takingit slow swap is kinda cool tho i get GREAT deals on a lot of things because im waiting it out got a k20z1 head for 700 complete with solenoid and all Type R valve cover for 60$ ClubRSX is the place to be

 
Rep Power: 403

i would suggest to "downgrade" to a 02-04 wire harness, less problems

 
Rep Power: 222

now that were on the subject of the k20 anybody have an idea of the stock pipe diameter of a type r exhaust? DC5 ITR DC2 ITR EP3 CTR etc? thanks

 
Rep Power: 261

If I were to do a swap again I would just use the 02-04 engine harness. When the shop did my swap they had hard time getting the harness to work but they figured it out. The car wouldn't start because something was not getting ground. I can't remember if it was the fuel pump or something else...but they eventually figured it out.

Also for the speedo the 02-04 tranny has the same type of speed sensor as our civics. The signal is the slower pulse signal setup. The signal from the speed sensor is sent to the ecu and to the instrument cluster in parallel.

On the newer 05-06 RSX's the tranny speed sensor sends a faster pulse signal. This faster signal is first sent to the ecu. Then the ecu converts the signal to the slower pulse signal so that the speedo can understand how fast the car is going. If someone tries to send the faster pulse signal straight to the cluster and ecu in parallel like in our civic set up the speedo won't work because the speedo can't understand the faster pulse signal.

So if you want your speedo to work use 02-04 engine harness, 02-04 K-Pro's setup and 02-04 tranny sensor.

or

05-06 engine harness, K-Pro's 05-06 setup that comes with a jumper harness, 05-06 tranny speed sensor. Then you have to take a wire and connect it from the ecu to the speedo input of your instrument cluster. Sorry I can't remember which pin it is on the ECU but Hondata has some info on their support page.

Good luck and have fun.

 
Rep Power: 319

When I did my k20a2 swap into my eg I used a 05-06 harness with 02-04 kpro... I had to modify some wiring to get it to work but my tuner did the rest...the speedo was off because it was still measuring the speed as if the car had the 17" wheels with tires while I had 13" wheels and tires but I used a friends 08 si and a local radar things that shows your speed to figure out how fast I was really going.

 
Rep Power: 251

just get an 02-04 harness makes like easier....hybrid-racing now has a lil' chip thing that allows the VSS signal to be converted so that the gauge cluster will now work when you use a 05-06 tranny with a 02-04 engine. Other people i've seen use a dakota digital box...which you can find on their website