i just got my jdm gsr motor today and i was wondering, wats the difference betwen the usdm and the jdm gsr's? besides the ten extra hp. wat does it redline at, how many cc's,shorter gears, etc.......

already searched and came up with nothing..

 

you didnt search hard enough.

usdm gsr and jdm gsr have the same "cc's", same redline I believe...

Engine
B18C SiR-G 1797 178@7600 129@6200 10.6:1 81 87.2 dohc VTEC Integra SiR-G (JDM)

B18C1 1797 170@7600 128@6200 10.0:1 81 87.2 dohc VTEC Integra GSR 94-01

http://hondaswap.com/reference...29128/

Transmission
S80/Y80; S80 w/LSD, Y80 w/LSD JDM B18C SiR-G 3.230 1.900 1.360 1.034 0.787 3.000 4.400

Y80 USDM B18C1 3.230 1.900 1.360 1.034 0.787 3.000 4.400

Looks like they have the same gearing...

http://hondaswap.com/reference...29132/

 

i just ordered the long block so i missed out on the LSD.

 

the higher compression on the jdm motor is what yields the higher horsepower, other than that, the two motors are pretty much the same

 

why did you order without checking out the specs first?

 

how did honda obtain a higher c/r in the sir-g? pistons and different head gasket. could some one just save mony adn do that to thier usdm version. or is it in the ecu too?

 

i got it as a replacement. i thought i had payed for a usdm but i got a jdm. the shop ordered it by the way. i guess it was a nice surprise because i didnt know it was a jdm motor until i actually went to go see it at the shop before they swapped it in.

 

the JDM and USDM are almost exactly identical. the only difference is the pistons. the JDM one has .6 more compression. i've owned both motors and do not feel a difference in the two. except maybe on the highway the JDM motor might feel a tad bit more power.

 

and got an excedy clutch good for 250lbs of tq

 

Engine
B18C SiR-G 1797 178@7600 129@6200 10.6:1 81 87.2 dohc VTEC Integra SiR-G (JDM)

B18C1 1797 170@7600 128@6200 10.0:1 81 87.2 dohc VTEC Integra GSR 94-01