Just to be clear.. the K20A = the euro Type R engine, correct? just reading now about K series and the RSX-S had two dif engines right? K20A(something, i think A1) and the K20z1 in later model years? Plz correct me if I'm wrong.i know they dont have balance shafts like our motor and they have a different intake manifold
theres no k20rAre you talking about the 1999 date k20a 160 horse first ed
k series, or the k20r that dosent show the R in japan listings?
The k20r Is 220ps with 11.5 to 1 comp pistons and a finer sand cast in the ports of the head to make a "casted" port and polish thereby elimanating the expensive porting on the type R b18c5.This saved money with the newer gen k type r motors.
Eliminate the R type head with the typs s k20a2 head and you have the k20z1
210ps motor from the 05 rsx-s.
The k20z3 has a hotter tune and a better manifold than both these cars but
tha slightly less aggresive cams from the 200ps k20a2 ala 2002 type s.
But our k20z3 has the type r final drive and lsd that the k20z1 cars are missing. Also a tsx sith gear for better highway cruising.
To get the best of all worlds a Si needs type r cams,a type r head, +1/2 pt compresion. A computer tune might be needed.
Do this and you will be there. Thats simply it.
:1: Thank youThats why I said it is not reffered to as a k20r in japan.
there is no part number difference for the 160 horse k20a
released in japan in 1999 or the 220 horse model in the type R but for reference most of us call it the k20ar or k20r from what ive seen.
The tsx cams are more aggresive but the question was compared
to the type r moter not the tsx. If you want to mix a tsx in keep the
bottom end with all the other stuff mentioned and have a k24 hybrid. You will have to realy beef up the bottom end though and beware the rod ratio
issues involved with rpms. I was just trying to answer the question asked.