I've thought about this quite a bit and haven't been able to find a good answer. We all know that the good ol' USDM Type R comes with 195 ponies. I do believe that the rating on a stock JDM ITR is 197... a difference of a whopping 2 horses. Now this doesn't make much sense to me. When people put a JDM header on their USDM Type R the dynos frequently show at least a good 10 hp *to the wheels*. The JDM ITR engine also comes with higher compression, and probably a few more goodies I don't even know about. So why is the factory horsepower difference only two horsepower?


[Modified by TypeR Freak, 2:56 AM 8/2/2002]


[Modified by TypeR Freak, 2:56 AM 8/2/2002]

 

USDM=195, JDM=200. But I think i saw some where it say that the 2001 JDM has 210 don't know about this. JDM 11:1, 4-1 header and 100 octane=200 or (210 for 2001?).

 

2001 and 2000 are same....USDM! Only difference is badge and key.

JDM..4-1

USDM..GS-R header

 

also 98 Spec R 210 hp , I beleive is cause there running also the ctr cam intake and itr/ctr (same ) exhaust cam .

 

JDM motors are measured in PS, not HP. They're pretty close, but not identical.

200PS = 197HP.

 

Just curious, what does PS stand for?

 

I think its just higher compression, and JDM headers, and shorter cat.

Dont worry about the U.S. Type R is still great!

 

US horsepower is rated in SAE (Standard of Automotive Engineers?) Japanese horsepower is rated at JIS i think or something like that. I dont know the exact diff but i know the #s wont be the same

 

pretty much...

higher comp,higher oct,header

 

You cannot compare these two numbers. The conditions for the measurement are different and therefore the correction values.

 

PS is what the europeans and asian people use.

AU/US/CDN use HP .

its just 2 different ways of representing power calculated slightly different.


[Modified by Soup ****, 5:54 AM 8/2/2002]

 

In France the R is 190cv...

 

UK Type R is rated 190PS equiv. 187bhp

 

Japan octane is rated in RON. So their 100 octane is the equivalent of 95-96 octane here isn't??????

 

well consider the "actual" HP in a USDM ITR. a 97/98 has a few less hp than a 00/01 due to intake cam and possible ECU settings. A FF Honda should lose about 15%. THe question is if a 97/98 and a 00/01 are rated at 195 hp which one really has it.

195 is an estimate. JDM ITR is like mentioned above 200 PS which equals 197 hp.

I have thought about this before too . . . JDM 4-1, higher compression (.5), different cat, slightly better Gas, different ECU (?).

 

SAE: Society of Automotive Engineers

 

JIS: Japan Industrial Standard. But Japan and most of Europe use PS instead of HP.

 

PS stands for Pferde Staerken.

Pferd is the word for horse
staerke is the word for power

PS is German for HP

 

lol

 

98 RON would be 96 octane which can be had in most European countries.

100 RON would be 98 octane...so either one would be better then what we have. I've used 98 octane before it makes big differences in engine noise and performance off the line.

In Japan you can also get 100 octane and 115 octane fuels. Some it is referred to it as Red gas because of the colour and normally used in many Skylines there.

 

wow thats a lot of information i just thought the JDM motors has a few extra ponies cause of thier higher compression..

 

no man, jdm motors have more power because they are JaY dEE EMmM

 

no man, jdm motors have more power because they are JaY dEE EMmM [/QUOTE]

umm alright

 

oh god, take that stick out your ***. i was being sarcastic

 

dood calm down..not trying to pick fights here L0L