Im almost positive that this has been covered, I did search and couldnt find anything, so... I didnt know whether this topic was better suited for here, or tech/misc, but anyway. What are the differences in the K20Z1, from the K20A2?

 

from what i hear, practically nothing

but i may be wrong

 

Only think I can think of now is the cams. Drawing a blank other than that. ECU I guess its sorta part of the motor. Final Drive on tranny.... I know this isnt technically the motor but arg I cant think of any more.

 

drive by wire?

 

Do not thread hijack and take it to the classifieds.

Reported

 

The k20z1 has type-r cams.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by korean &raquo;</TD></TR><TR><TD CLASS="quote">drive by wire?</TD></TR></TABLE>

k20a3 / k20z1 are both drive by wire. maybe you mistake it for the k20z3
cams and intake manifold are from the itr
also the mounts for the k20z1 tranny are different
the ecu is different s well.

 

the k20z has like.. 3 less hp from some type of noise reducing thing they added to the motor...

 

you are wrong.

 

So, just so that we are on the same page, the 05-06 Type-S's have the K20Z1 right?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HondaTom &raquo;</TD></TR><TR><TD CLASS="quote">So, just so that we are on the same page, the 05-06 Type-S's have the K20Z1 right?</TD></TR></TABLE>

yes

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by carbing’ed &raquo;</TD></TR><TR><TD CLASS="quote">

k20a3 / k20z1 are both drive by wire. maybe you mistake it for the k20z3
cams and intake manifold are from the itr
also the mounts for the k20z1 tranny are different
the ecu is different s well.</TD></TR></TABLE>

I think you have a typo.

The K20Z3 (2006 Civic Si) has drive-by-wire throttle control. It's electronic.

The only other motor that has DBW is the K24 from the Acura TSX.

The K20Z1 does not have Drive-By-Wire. It has a conventional, physical throttle cable linkage.

 

eitherway its 10horses difference. its said to have the itr cams, final drive, and lsd. but from what i understand the itr lsd has yet to be found in one

 

The K20Z3 has an LSD.

Not the K20Z1.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by D-Rob &raquo;</TD></TR><TR><TD CLASS="quote">

I think you have a typo.

The K20Z3 (2006 Civic Si) has drive-by-wire throttle control. It's electronic.

The only other motor that has DBW is the K24 from the Acura TSX.

The K20Z1 does not have Drive-By-Wire. It has a conventional, physical throttle cable linkage.</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by carbing’ed &raquo;</TD></TR><TR><TD CLASS="quote">

k20a2 / k20z1 are both drive by wire</TD></TR></TABLE>

fixed

 

Damn everybody is wrong in here.

02-04 RSX-S has the K20A2

05-06 RSX-S has the K20Z1

06+ Civic has K20Z3 (the only K20 with electronic drive by wire)

the question is the difference between the K20A2 and K20Z1 (02-04 RSX-S engine and 05-06 RSX-S engine)

Pretty much identical except the K20Z1(05+RSX-S) has Type R cams, Type R intake snorkel, slightly bigger throttle body, high flow cat, Type R 4.77 Final Drive, (some say ITR intake manifold also but part number is still a PRB part), different (newer, faster ECU), Type R flywheel, slightly different wiring harness, primary 02 sensor is wired differently. I also heard the K20Z1 is cast from a lighter, stronger aluminum..but not confirmed. The mounts on the transmission is lighly different and it adds a dynamic engine damper mount.

Basically its a K20A2 with a whole bunch of Type R upgraded parts.

for 05 the K20Z1 is rated at 210hp, for 06 with the new SAE standard its now rated at 201. If the K20A2 were rated the same way the 06's are, it would probably be advertise as having 192hp instead of 200.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Revolution2zz &raquo;</TD></TR><TR><TD CLASS="quote">Damn everybody is wrong in here.

</TD></TR></TABLE>

im right. i typed 3 instead of 2

 

Cool, thanks alot guys.

 

Err the k24 from the tsx also has drive by wire.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by D-Rob &raquo;</TD></TR><TR><TD CLASS="quote">
The only other motor that has DBW is the K24 from the Acura TSX.
</TD></TR></TABLE>

... I already mentioned that.

 

lol must have missed that...what he said then.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HondaTom &raquo;</TD></TR><TR><TD CLASS="quote">So, just so that we are on the same page, the 05-06 Type-S's have the K20Z1 right?</TD></TR></TABLE>

wait,..so which car has the K20a2? is that the type-s engines prior to 05?

nevermind...missed Revolution2zz's post....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mike04Civic &raquo;</TD></TR><TR><TD CLASS="quote">

wait,..so which car has the K20a2? is that the type-s engines prior to 05? </TD></TR></TABLE>

 

Good info! I dont even think I have seen this much info in the differences on ClubRSX.com. Maybe its because I just didnt search.

 

Thank you for clearing all of that up. I was beginning to wonder.