US STi EJ25 & JDM STi EJ20
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Originally posted by downshift
yes the 2.5 will give more power.. but the jdm STi is still better because its way faster with a different turbo. the 2.5 just gives us the potential to get even faster.. but the jdm STi is already faster than the usdm sti.. also its 2.0 in japan because it has to be 2.0L for be qualified for rally races. the jdm Sti has a higher compression ratio which is why they have higher octane and the faster stock STi.. but not much faster.. the usdm STi is a beast waiting to be unleashed with its great 2.5L potential.. also it was made to crush the EVO. in power that it.
yes the 2.5 will give more power.. but the jdm STi is still better because its way faster with a different turbo. the 2.5 just gives us the potential to get even faster.. but the jdm STi is already faster than the usdm sti.. also its 2.0 in japan because it has to be 2.0L for be qualified for rally races. the jdm Sti has a higher compression ratio which is why they have higher octane and the faster stock STi.. but not much faster.. the usdm STi is a beast waiting to be unleashed with its great 2.5L potential.. also it was made to crush the EVO. in power that it.
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Originally posted by gohan
And you can't get 300 hp from a 2 liter on 91 octane and still pass emissions tests. (see 271 hp USdM Evo, or 269 hp Euro STI).
And you can't get 300 hp from a 2 liter on 91 octane and still pass emissions tests. (see 271 hp USdM Evo, or 269 hp Euro STI).
All you guys please stop that JDM crap. The fact we have 2.5 is simply because we have sh*t fuel.
In Japan, 95 or higher octane fuel is everywhere (even they cost much more then here)
From business point of view. The safest way to produce 300hp is increase the displacement a little bit, not running more boost then JDM model.
-Bryan
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Joined: Apr 2003
Posts: 1,013
From: california, LOS ANGELES
Car Info: dream car Subaru STi
God, that's is soooo true.
All you guys please stop that JDM crap. The fact we have 2.5 is simply because we have sh*t fuel.
In Japan, 95 or higher octane fuel is everywhere (even they cost much more then here)
From business point of view. The safest way to produce 300hp is increase the displacement a little bit, not running more boost then JDM model.
-Bryan
true that bryan. true that
All you guys please stop that JDM crap. The fact we have 2.5 is simply because we have sh*t fuel.
In Japan, 95 or higher octane fuel is everywhere (even they cost much more then here)
From business point of view. The safest way to produce 300hp is increase the displacement a little bit, not running more boost then JDM model.
-Bryan
true that bryan. true that
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From: Alameda, CA, USA
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Of course, displacement alone, 2.5 is better than 2.0. That is why upped my EJ20 to a stroked 2.4L EJ22.
What I do not like is a pure fact, that no other country (and especially Japan) is getting that motor. At least for some time.
What I do not like is a pure fact, that no other country (and especially Japan) is getting that motor. At least for some time.
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you people are dumb, the reason that subaru uses 2.5 L in USA is because with the 2.0L they are not going to be able to make the 300HP that everybody wants and pass the emision regulations , and also the bad gas in this contry, its true 2.5L bigger but its not true that bigger is better , the engine its more heavy= bad hundle, braking etc, in japan they use the 2.0L because they have tradition , and they see cars more serious than here , the 2.0L battle in Japan is huge and have years and years, evos, subarus, nissan silvias , toyota mr2, etc and the true is that the WRC subaru rally is 2.0L and thats the way they made history, real rally fanatics are not going to acept the change to 2.5L, so because all those reason they use the 2.5L here nobody cares, actually you guys think is better "bigger better" the stupid American Way...
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Originally posted by herson21
you people are dumb, the reason that subaru uses 2.5 L in USA is because with the 2.0L they are not going to be able to make the 300HP that everybody wants and pass the emision regulations , and also the bad gas in this contry, its true 2.5L bigger but its not true that bigger is better , the engine its more heavy= bad hundle, braking etc, in japan they use the 2.0L because they have tradition , and they see cars more serious than here , the 2.0L battle in Japan is huge and have years and years, evos, subarus, nissan silvias , toyota mr2, etc and the true is that the WRC subaru rally is 2.0L and thats the way they made history, real rally fanatics are not going to acept the change to 2.5L, so because all those reason they use the 2.5L here nobody cares, actually you guys think is better "bigger better" the stupid American Way...
you people are dumb, the reason that subaru uses 2.5 L in USA is because with the 2.0L they are not going to be able to make the 300HP that everybody wants and pass the emision regulations , and also the bad gas in this contry, its true 2.5L bigger but its not true that bigger is better , the engine its more heavy= bad hundle, braking etc, in japan they use the 2.0L because they have tradition , and they see cars more serious than here , the 2.0L battle in Japan is huge and have years and years, evos, subarus, nissan silvias , toyota mr2, etc and the true is that the WRC subaru rally is 2.0L and thats the way they made history, real rally fanatics are not going to acept the change to 2.5L, so because all those reason they use the 2.5L here nobody cares, actually you guys think is better "bigger better" the stupid American Way...
True, bigger is not always better, but in this particular case, maybe bigger engine is the best we can get.
In Japan, cars with large displacement and size are heavily taxed. Also since the gas is very expensive, 2.0 or smaller engine is preferred.
However in U.S. is different story, we do not have the concerns usually exists in other smaller country that’s why ppl likes bigger cars…..
About WRC, yes that’s true no 2.5L will be allowed so far. However, what’s wrong of 2.5L on the street anyway? If the best of Subaru technology can only pump out 250hp from EJ20 with 91 octane gas and 7000rpm red line, will you buy it? I am not joking, consider European model Sti only creates 265hp and 7500 redline and we have even crappier gas then Europe. I rather buy 300hp 2.5L, thanks.
-Bryan
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Joined: Nov 2002
Posts: 116
From: Redmond WA
people who think 2.5L is not "JDM" is weired.
why everything needs to be JDM??!! If the stuff we have is actually better, it doesn't need to be JDM. I mean everybody is trying to get a stroked motor, like Jun's car. but now, we have a factory 2.5, and people start biatching about it's not "JDM".............
why don't you guys just save enough money and buy a good amount of Subaru and make your own dicision..........
why everything needs to be JDM??!! If the stuff we have is actually better, it doesn't need to be JDM. I mean everybody is trying to get a stroked motor, like Jun's car. but now, we have a factory 2.5, and people start biatching about it's not "JDM".............
why don't you guys just save enough money and buy a good amount of Subaru and make your own dicision..........
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I don't say that 2.5L is bad , I just try to explain why US have the 2.5L thats all.. Its good that nobody until now say something like "who cares the subaru its the best car in the word or its better than the Evo VIII" those coment shows how ignorant some of the user of this forum are.... Viva CR...
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Being a rally enthusiast I don't particularly like the 2.5L which effectively blows homologation standards but then again the regular WRX is 2.0L so that can be worked on quite easily might I add and a lot of FIA technicalities don't particularly like VVT.
So what's wrong with having 2.5L why would you want to have cars that are all the same? Now that all these nice cars are being imported in the US tuners here may start actually coming out with their own original stuff which will be even more interesting than just grabbing stuff off the usual overrated parts catalogues.
As far as the larger size I guess the ''JDM'' enthusiasts forget that it is common practice in Japan to stroke 4cyls cars to either 2.2L (remember the 22B?) or 2.4L (toda for example) in that case how convenient Subaru has done that for us already. . . . if you don't like it plenty of stuff for the normal WRX.
So what's wrong with having 2.5L why would you want to have cars that are all the same? Now that all these nice cars are being imported in the US tuners here may start actually coming out with their own original stuff which will be even more interesting than just grabbing stuff off the usual overrated parts catalogues.
As far as the larger size I guess the ''JDM'' enthusiasts forget that it is common practice in Japan to stroke 4cyls cars to either 2.2L (remember the 22B?) or 2.4L (toda for example) in that case how convenient Subaru has done that for us already. . . . if you don't like it plenty of stuff for the normal WRX.
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Joined: Dec 2002
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We all loved the B22 with the 2.2L motor, and now we have the biggest Impreza turbo motor in the world!
A lot of tuners in Japan actually use the EJ25(prepped, of course) or bore/stroke the 2.0L engine to a larger displacement to make serious power. We have the factory that did all the work. I'm sure the 2.5L will be used in the Japanese market somehow...
I have no doubt that the US STi motor will be just as strong as any STi motor available.
A lot of tuners in Japan actually use the EJ25(prepped, of course) or bore/stroke the 2.0L engine to a larger displacement to make serious power. We have the factory that did all the work. I'm sure the 2.5L will be used in the Japanese market somehow...
I have no doubt that the US STi motor will be just as strong as any STi motor available.
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Joined: Dec 2002
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From: Good ol oregon
Car Info: 02' WRX
The main reason is to be able to make 300hp/300lb ft on 91 octane and pass emissions.
The second reason is that with the larger displacement, the car gets more useable lowend and power delivery will be far more linear than the 2.0 engine. Buy smoothening out the power delivery and giving it more low end the car is much more suited to American drivers as a whole.
The second reason is that with the larger displacement, the car gets more useable lowend and power delivery will be far more linear than the 2.0 engine. Buy smoothening out the power delivery and giving it more low end the car is much more suited to American drivers as a whole.