[I]i have imported an rx-8 from japan with 250 bhp
in europe it has 238 bhp the 6 gear ones.Dont know about the american rx-8.

does anyone know why its like this.im very curious to find out

 

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Instead of being a complete *** like some like to be I have noticed, the 6-speed American model has 238hp and the auto has 197hp I think.

 

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Different marketing departments.

 

first thats not whp (wheel horsepower) thats BHP (base horse power) or crank horsepower.... anyway

The JDM model (sold in japan and parts of asia I belive, as well as imported to other countrys) is RATED (meaning tested and claimed/advertised) at 250BHP. The Euro Model (sold across europe and other parts of the world) is RATED at 231BHP. The North American Model (sold in the US, canada and other parts of North (and maby south?) america) is RATED at 238 (down from 24x dont remeber exacaly). These are all quotes FROM MAZDA for the RATED gross power at the crank for the 6port (6speed manual/High Power/Type S) model.

The reason for the differences is emmissions systems/warrentys. Some countrys have more strict emmissions laws so they have to be equipt with differnt catalytic converters/other emmissions systems and also have a differnt tune for the air/fuel ratios and timing. This is to both meet the laws AND make the emmissions systems parts last thru the warrenty). Although its not as simple as just swaping the parts from one car to another...

I have never seen anyone race the 3 differnt models in stock form against each other, or back to back...it would be interesting.

 

247

 

I thought the UK had 228HP?

 

sorry that is what I meant to say that the 238 and 197 are flywheel hp

 

They have to be rated to handle different qualities of fuel that are available around the world, plus some markets will tolerate more error. In the US, you better not fall below 5% of your rating or you'll go through what mazda did when they released the 8 the first time.

 

bhp=brake hp. meaning the hp of the engine under load or a "brake." bhp is more meaningful if you are focused on the engine itself. wph is if you yank your car up on a dyno.

 

I wish I had 250bhp. haha...

 

I doubt there is any difference between all the versions. Like murix said it's the marketing department

 

the specs on Mazda UK's site list the 6port 6speed at 231 although its just called the RX8-230 and the 5speed manual and auto is called the RX8-190 and has 192 or something... I think

 

I'd bet that in a side by side comparison between all the 6spd/hi power 8's no matter where sold, they'd be nearly identical. This would put me with ZoomZoom and Murix.

 

Japan's 250 is actually using PS which is 247 BHP

 

http://www.enginepsd.com/techpages/tp0301_en.doc

 

lets not forget...japan does sell over 100octane at gas stations xP

 

i saw a race between a european rx-8 and a japanese rx-8. the japanese one raced by a car or two.
But the japanese models have limiters on at 189 kmph(tested in mine and my mates japanese models)but that can be sorted out anyway.

 

They really don't have 100 octane gas, it is just calculated differently. So they 100 octane there would be our 93 here.

 

correct same with europe and other parts of the world....the highest octane gas you see regularly is right around 93-95.

 

Really? I was under the impression that their gasoline has high octane because they use leaded gasoline... no?

 

Same in Sweden - 228 HP...

 

Bla bla bla...



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Mazda's probably lying about all 3. They're probably all the same at about under 230 hp.