What, if any, is the difference in the GSR b18c and the SiR b18c?

I'm looking for a b18c1 motor and some are advertised one way and some the other.
Thanks

 

GSR B18C is JDM and i think the Sir is canadian or european. pretty sure the B18C gsr motor has more hp

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by steadyeddy &raquo;</TD></TR><TR><TD CLASS="quote">What, if any, is the difference in the GSR b18c and the SiR b18c?

I'm looking for a b18c1 motor and some are advertised one way and some the other.
Thanks </TD></TR></TABLE>

GS-R b18c1 is a usdm 170hp 10.0:1 compression ( could be 10.2) I might be wrong.

Sir-G b18c is a jdm 180 hp 10.4:1 compression

both has same gear ratio but in the jdm b18c you can get a optional factory lsd where the usdm b18c won't have it.

That's all I can think of right now though.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hybrid Beast &raquo;</TD></TR><TR><TD CLASS="quote">GSR B18C is JDM and i think the Sir is canadian or european. pretty sure the B18C gsr motor has more hp</TD></TR></TABLE>

 

actually JDM gs-r is 10.6:1 c/r

 

Since when did any civic come with a b18 motor?!?

The EK chassis SiR is the Canadian version of the USDM Si. It's also powered by the same b16a2 as the USDM Si.

 

We're talking about an Integra Sir-G b18c...not a civic.

And, thanks Sleeperciv for the information.

 

nobody ever said anything about a Civic.

 

USDM B18C1 GSR = 10.0:1 170hp
JDM B18C SiR = 10.6:1 180hp

The JDM ECU has a speed governor and some years (96+ I believe) have no VTEC pressure switch.

 

JDM B18C can also be had in a Automatic version...i should know...i still have the auto tranny sitting in my backyard

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by VTECVillain &raquo;</TD></TR><TR><TD CLASS="quote">
The JDM ECU has a speed governor and some years (96+ I believe) have no VTEC pressure switch.</TD></TR></TABLE>

The OBD1 JDM P72 ecu's facotry programming sucks *** too. If you get a JDM B18C-SiR/G engine either upgrade the ecu or use a stock US OBD1 P72 ecu.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SlowRedHybrid &raquo;</TD></TR><TR><TD CLASS="quote">actually JDM gs-r is 10.6:1 c/r</TD></TR></TABLE>

thanks for the correction

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hypa &raquo;</TD></TR><TR><TD CLASS="quote">Since when did any civic come with a b18 motor?!?

The EK chassis SiR is the Canadian version of the USDM Si. It's also powered by the same b16a2 as the USDM Si. </TD></TR></TABLE>

LOL

anyways...everyone pretty much already answered it for you
US b18c1= 10.0:1, 170hp
jdm b18c= 10.6:1, 180hp
and the ecu differences

 

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

The OBD1 JDM P72 ecu's facotry programming sucks *** too. If you get a JDM B18C-SiR/G engine either upgrade the ecu or use a stock US OBD1 P72 ecu.</TD></TR></TABLE>

Accurate info

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hypa &raquo;</TD></TR><TR><TD CLASS="quote">Since when did any civic come with a b18 motor?!? </TD></TR></TABLE>

In the EDM a civic did come with a b18.

 

how could you tell if you have a b18c GS-R or SiR motor?

 

GSR is B18C1
SIR-G is just B18C

 

i swear that the b18c(jdm sirg had 10.4 compression)

 

so the motor i stamped b18c1? mines just stamped b18c, vtec kicks in at 4400rpm, but mine has a speed cut at 180km/h so im assuming its SiR but how would i know exactly?

 

Im pretty sure only jdm ecus have speed cut also.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by projectTeG &raquo;</TD></TR><TR><TD CLASS="quote">i swear that the b18c(jdm sirg had 10.4 compression)</TD></TR></TABLE>

In canada

 

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

In canada</TD></TR></TABLE>

i know that but people were saying its running 10.6. thats factor Usdm ITR compression