Hey i wanted to know how to tell these motors apart. Let me know. Thanks again
CTR is lower hp than a DC5-R engine, about 5hp to be exact. This is because of the factory exhaust manifold design. Soon as you put a header or even swap a DC5-R exhaust manifold onto a CTR K20 engine you'll gain back that 5hp.Soda Popinski said:I swore that CTRs were less power than ITRs. Like they all they were, were red top RSX S motors. Dunno, call me dumb but thats what i heard.
maybe because of the electric steering?chameleon said:but why a different ecu ?
that dosent sound right, why would you takeaway HP's in japan, U.S yes, but in JAPAN ????katman said:CTR is lower hp than a DC5-R engine, about 5hp to be exact. This is because of the factory exhaust manifold design. Soon as you put a header or even swap a DC5-R exhaust manifold onto a CTR K20 engine you'll gain back that 5hp.
Katman is stating that the design of the the exhaust manifold on the Ep3 Ctr is designed differently which might account for the different power rating. In other words the Ctr header is a bit restrictive. It was probably disigned different because of clearance issues.B20VTECHUSTLER said:that dosent sound right, why would you takeaway HP's in japan, U.S yes, but in JAPAN ????
PRA is the code for the UK spec CTR motor, which is essentially a k20a2, a JDM CTR is PRDkmar111 said:I have a ctr K20a and there only difference that i saw was that on the side of the motor(left side if you are standing in front of the car) on the itr there is a sticker that says PRC-k20a, the CTR does not have that, it has something like PRA2-xxxx. that is the only diiference that i have seen. but the intake manifold both say PRC but the transmission have different codes also,
Not so plain and simple, a Euro Civic has K20A2 and the JDM Integra is a K20A, Different pistons, cams etc which is the only model you can buy in Europe as an import.RC000E said:This controversy is just getting old. They are the same motor, plain and simple.
If your Honda though, you can't sell a more expensive ITR to the consumer if the CTR is the same...or better for that matter. So a more restrictive exhaust, maybe a little more conservative tuning in the ecu leads to a little less power. In addition, a different manifold design will certainly require a different tune due to scavenging differences.
Chevy has done it for decades with the Camaro and the Vette. GM whores out the Corvette powerplants to any chassis they can fit it in (Camaro, Impala SS, Corvette, etc. in the early 90's). Exhaust differences always led to a downgrade in power so that the Corvette would be the undisputed leader. Fact was, the LT1 was the same in all the cars. Simple marketing
macer said:Not so plain and simple, a Euro Civic has K20A2 and the JDM Integra is a K20A, Different pistons, cams etc which is the only model you can buy in Europe as an import.
aznboysrfr said:I've seen pics of the ctr exhaust mani and it looks nearly identical to the itr one ... so I don't think the differences are in the ex. mani ...
electric power steering should bring the ctr's hp higher than the itr motor ... but it's still rated lower ... :|