I need a new car, but I don't know much about the new K20's I'm an old school B18C guy. I'v had my GSR for 6 years topped out at 12.96@105mph all motor but the car is just too beat down. time to move on so now I want either an 06 si or 06 RSX type S

 

i would get the 06 Si

 

pro & cons? please I told u im old school

 

Well, if you are only looking at MY 2006 cars then the Si has the K20z3 which is rated at 197hp (SAE rev 8/04) and the 06 RSX-S has the K20z1 rated (again tested with SAE rev 8/04 standerd) at 201hp. To make a longer explanation shorter the 05 and 06 RSX-S have the same exact engine (K20z1) but the 05 was rated at 210hp as it used a different rating sytem than the 06 MY (the new rating system is the SAE rev 8/04 noted above).

Ok, now just to cover a few other main differences that I can think of off the top of my head.
-Si has LSD and the RSX-S does not.

-Si and RSX-S have the same tranny (FD ~4.7) except for the 6th gear in the Si is a bit taller. Gears 1-5 are the same.

-Si has a bit different suspension setup than the Si (much improved over the Type-S but still McPhearson strut up front). I dont know that much about it but George K. has written some good explanations about it. (Maybe he will be so kind as to chime in )

Alright I am running out of stuff (there is much more I just cannot think of it now). I will add stuff if I can find it or remember. This should at least give you a bit to search on and look around for.

 

lsd is a must for me either stock or not, but can any one tell me the bore and stroke and if the toda package would work because its not a K20A. I do know that both have a Compression Ratio of 11.0:1 and thier both 2.0 litter engine, but what makes more power in the RSX and why it is or is not faster?

 

Si has electric steering and suspension has firmer spring rates. Overall a better car

 

si (k20z3) has a better intake manifold (RBC=euro accord type R is same as '06 si =RRB) that would allow for larger gains when coupled with mods

si also has counter balance shafts (RSX-S does NOT)which allow the engine to spin at a higher rpm without screwing up the harmonics of the engine.... TSX (k24a2) has the same counter-balance shafts BTW - these counter balance shafts would have a parasitic effect on the engine which could explain the 4hp loss

outside si looks better IMO but inside don't kow if I could deal with 2 tier cluster

lol...neither will compare to my ek (install april 1st)....aiming for 240whp dynojet on ITR cams w/lotsa tricks up my sleeve

 

SI is also DBW That might slow it down a bit. Also the Si is heavier than the Type-S.. .... ekkk
and yea that si interior.....blahh
Just my .02

 

the EPS system sucks. it lags and lacks feel. also noted by TOV.

 

anything else?