commotion

OK so i saw the differances between the two and im trying to get a type R motor. when buying online from a importer how do i know im getting a Type R. Is the only visual thing i could find online that tells them apart is the intake mani is a single larger sleave on the type r... but is there any other way to tell.. And im talking about a jspec not a us motor
also if you have any sites that have complete swaps cheap i wouldnt mind looking also. but what im looking for is
Type R motor
LSD Tranny
Axels
Mounts ect.

Also when it is a 96 and up motor that is OBD2 correct?
Im putting this in a 95 civic OBD1 what will i have to change to keep that OBD1 ECU (Just the injectors? or the injector harness by sodering them)

Thanks For time

HamsterStyle

the gsr is b18c1 and the ITR is b18c5 im not sure how to differentiate between usdm and jdm though, sorry.

commotion

yah they are us codes. the jap codes are both b18c i think

D16SiHatch

in the jdm market engines marked with b18c could either be a gsr or a type r. i believe the codes on the head are different, and thats what would help you tell them apart. to run an obd2 motor obd1, you would need to swap the dizzy for an obd1 version, or change the connectors on the obd2 dizzy. since they are the same internally, just the connections are different.

96DelSol

Whats the difference in hp from jdm and usdm?

commotion

that im not sure i just like the 30-60k miles on the jspec whatever

commotion

so i can just change the plug on the dizzy? do i have to change the plugs on the Injectors?

commotion

what out shiftlinkage?

96DelSol

Yeah well thats true.

xxblazexx

The code on the Type-R head is the same as the one on the b16 cuz it's the same head

commotion

so how can you tell them apart. i mean anyone can paint a red valve cover lol

Blazin Si

Intake manifold is the easiest way. Also the GSR head is stamped P72 while the ITR and B16 heads are stamped PR3-X. The X can be a number from 1 to 4. One other one I can think of is to take the valve cover off. The ITR has dual valve springs on the intake side.

RyanA

Besides the head code, here are a few other ways to tell:

1. GSR has the "bear claw" looking intake manifold with IAB's
2. ITR has the single stage intake manifold.
3. GSR ECU will say P72
4. ITR ECU will say P73

commotion

here is the pictures tell me what this is lol

o'malley_808

Thats a JDM type R

- OEM 4-1 stainless header
- stamped LSD in black on the tranny
- "Normal" looking intake manifold
- 2.5" collector

hOnda_hiEn

look on the block..

b18c1 - gsr
b18c5 - usdm type r
b18c - jdm type r

EK TUNER

If you are buying a JDM motor without papers or any kind of guarantee, then the only way to know FOR SURE is to have the seller remove the head so you can inspect it. Externally, a JDM Type R engine differs from GSR(SIR-G in Japan) because it uses a different head and intake manifold. The GSR head will be stamped P72 and will have dual(upper and lower) intake runners. The Type R head shares the same casting as the B16A head and will be stamped PR3. Type R heads can also be distinguished from the lesser B16 heads because they are marked with green paint on the back near the distributor. But this paint will wear off over time.

If you're dealing with a JDM motor, it can be very easy to be fooled since both the Type R and GSR blocks are stamped B18C. Also, both blocks are similarly stamped P72 in the back. In addtion, a Type R intake manifold does bolt onto a B16A head. Thus, if someone were to use a B16A head on the GSR block, with the ITR intake manifold/throttle body and a red valve cover, it would look like the real deal. At least on the outside. The only way to know for sure is to open it up and look for these:

- mild porting on the intake ports.
- dual valve springs on the exhaust side.
- pistons are stamped 00 P73

Seeing at least this much evidence would probably convince me that the motor was indeed a true Type R motor.

As for putting a B18CR motor into an EG chasis... there is no OBD1 Type R ECU. So, you probably have to get a OBD1 P28 and chip it with the Type R base map. And you don't have to worry about changing out injectors or the distributor or anything as long as you can find yourself a USDM OBD2 GSR engine harness. It will plug right up to your shock tower plugs. Just make sure you're using an OBD2 engine harness and an OBD1 ECU. Plug and play!

commotion

now i have a ex cpu that is chipped with chrome when i had a turbo. since then i loaded a d15b map on and have been running it since, with this do i needto get a hondata setup or chrome or uberdata ok?

This is what i wanted to hear thanks a bunch

RyanA

Actually, the magic about JDM ECU's is they are kind of like OBD1 in OBD2 clothing. Why do I say this? I'm speaking from experience on the JDM OBD2A ECU's; I do not know about the 2B's:

1. An OBD2A ECU from Japan does not look for a rear O2 sensor nor support it.
2. An OBD2A ECU from Japan does not look for or support a CKF sensor.
3. An OBD2A ECU from Japan does not look for or support a VTEC pressure switch.

Because of the lack of rear O2 and the CKF in the ECU's circuitry, it may as well be an OBD1 ECU. Honestly, if you have no plans on crazy mods, I'd get an OBD1-OBD2A conversion harness and use the ECU provided with the engine. It will run much better than just about every "canned tune" ITR map on an OBD1 ECU.

I'm running the JDM ITR OBD2A ecu in my car. Now, granted my car is a 1998. However, my last tank of gas with mostly city driving, I got 33.9 mpg! Not too bad if you ask me. The only drawback I have found so far is a US ScanTool can not connect to a JDM ECU. Because of this, you can not watch real time data through the ALDL if you have OBD2. This also leads me to believe that the JDM ECU is still running OBD1 inside these ECU's.....

For the people that keep posting up USDM engine codes, this guy is talking about a JDM engine. JDM engines do not have a number after the last letter!!! The B18C in Japan can be either the GSR or the ITR; you just have to check everything out (trans code,head code, ECU code, etc) FYI: Both the ITR and the GSR B18C has P72 cast into the block itself so dn't let that scare you.

Ryan

EJ8freek

In true JDM terms, the B18C engine is a JDM ITR engine and also an SiR. If u want a JDM ITR engine I believe u need to see if the engine comes with a carbon fiber spark cover.

Deetz

They are both stamped B18C in Japan. The easiest way to tell the diff....

- a gsr has a P72 head, stamped right on it

- type r comes with a b16 head stamped PR3

commotion

ok the guy said that it is pr3-1 on the head and he will give me a choice between p72 or p73 computer. he said it came from japan with a p72 so is that mean differnt years or what?

xjosfx

iTrader: (1)

easiest way to tell between a stock GSR and stock ITR, the intake manifolds. usually ITR comes wit KAAZ LSD.

thats a trip, i didnt know a ITR had a CTR head...

ALLxMOTOR EG

b18c can also be a jdm gsr.

xjosfx

iTrader: (1)

all JDM motors have no numbers after the last letter. easiest way to tell diff between USDM and JDM.