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[RESOLVED] JDM Engine specs.

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spawn87

15+ Year Contributor
908
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Dec 6, 2007
sacramento, California
so i know that the jdm turbo dsm is faster but can any one give me the numbers on a 2g jdm motor for a fwd turbo eclipse as far as hp and tourqe compared to the american version.
 
Yea, it's this whole JDM- yo mentality. The JDM cars made more power than USDM cars because of larger turbo/injectors and tuning. The engines/drivetrains are the same. With that said, you can buy the same items, and better, here in the US. IMO The extra money is not worth it just to have a 'JDM' item on the car.

I am not knocking JDM items, I have a non-emissions throttle body and have put a switchable end cap on my transmission from a Ralley Galant that switches to a 50/50 split.
 
but how much more power are the jdm versions putting out compare to the american i know they the same thing just diferent tunning but i need to know the numbers
 
but how much more power are the jdm versions putting out compare to the american i know they the same thing just diferent tunning but i need to know the numbers

You can type it in to Google just as well as any of us can. The jdm Galant RS 4g63's are rated at a whopping 230hp. The turbo Eclipse engine of the same year was rated at 195hp from the factory. So there is a 35hp difference. The engines are identical other than 510cc injectors and a 16g turbo. Keep in mind, these aren't Honda's and the fact that someone runs a jdm engine means nothing other than they have a low mileage short block.
 
oh wow thanx guys this info really dose help really...i dont know much yet but i want to learn as much as i can....the reason i ask is cause i have a friend with a second gen eclipse with a jdm engine conversion and he says his pushing 299 torque I don't know why but he seems interested on running against me and i didn't know if i stood a chance at 14psi w/injen intake
 
oh wow thanx guys this info really dose help really...i dont know much yet but i want to learn as much as i can....the reason i ask is cause i have a friend with a second gen eclipse with a jdm engine conversion and he says his pushing 299 tourq idk y but he seems interested on runnin agains me and i didnt know if i stood a chance at 14psi w/injen intake

Unless he has some pretty good modifications done, he is blowing smoke up your ass.
 
Yea, it's this whole JDM- yo mentality. The JDM cars made more power than USDM cars because of larger turbo/injectors and tuning. The engines/drivetrains are the same. With that said, you can buy the same items, and better, here in the US. IMO The extra money is not worth it just to have a 'JDM' item on the car.

I am not knocking JDM items, I have a non-emissions throttle body and have put a switchable end cap on my transmission from a Ralley Galant that switches to a 50/50 split.

What are you switching from, if you have to mod your car to switch to 50/50 power split?
Mine came from the factory with a 50/50 split and so did everyone else's to the best of my knowledge.

Do you have any more info about this "end cap" you've installed on your transmission? I'm aware of a switchable transfer case that allows you to switch between FWD and AWD with the flip of a lever (and a bolt to hold it in place, IIRC), but I've yet to hear about this end cap..not that it sounds of much use to me, being 50/50 already. :p

Thanks,

As for JDM anything for DSMs, as mentioned above, all turbo DSM engines were manufactured in the US and shipped elsewhere, so a JDM 4g63 is really an American engine. Also as mentioned, the reason some variants make more power is because they can be had with the 16g and 510cc injectors. Both those and more are available here in the US market. JDM is a meaningless term people like to toss around to sound "fast", at least for DSMs, cause everyone has a friend who runs flat 11's in his Integra with a tite JDM swap.
 
I have bought Eclipse Sypder with a JDM engine. I cruise through sites to find the specs but i get diffrent readings. Does anyone know the exact HP and Torq it has? thanks.
 
I am not knocking JDM items, I have a non-emissions throttle body and have put a switchable end cap on my transmission from a Ralley Galant that switches to a 50/50 split.

You have a switch than can disengage drive to the rear axles. You're always 50/50.

so i know that the jdm turbo dsm is faster but can any one give me the numbers on a 2g jdm motor for a fwd turbo eclipse as far as hp and tourqe compared to the american version.

There is no "JDM" DSM. There are Japanese motors and transmissions that get installed in DSMs. Their output, unmodified, is trivially different.

Good luck at the track, which we know is the only place you'd consider racing.
 
The evo 3 is the car that comes the closest to a dsm because it has same engine with a different intake manifold, 16g turbo, and a much better drive train. Well same drivetrain just much better internals and a higher gear ratio evo 3 has a rear diff is 4.5 or 3.9, which I think means has a faster 0-60 but can't do too much after 120 or 30(like the mustang fast backs). The differences are there but nothing you can't really live without, by the way the Lancer gsr is another car similar to dsm's except it came with a 1.8 but still kicks ass.
 
You would need to find out more info on the engine. If its a 6-bolt swap or a 7-bolt. The engines are all basically the same except some of the "JDM" engines have larger turbos and injectors. Look at the top of the injectors and see what color they are, that will give you an idea.

This link is for people looking to but jdm engines, but since you already have one it will help you identify what you already have.
Used Japanese 4G63 Motor and Trans Searching
 
Yea, it's this whole JDM- yo mentality. The JDM cars made more power than USDM cars because of larger turbo/injectors and tuning. The engines/drivetrains are the same. With that said, you can buy the same items, and better, here in the US. IMO The extra money is not worth it just to have a 'JDM' item on the car.

I am not knocking JDM items, I have a non-emissions throttle body and have put a switchable end cap on my transmission from a Ralley Galant that switches to a 50/50 split.

I'll Knock "JDM".

There so many honda kids running around talking about JDM this, and JDM that.
I went into a performance shop that is SUPPOSED to "specialize" in our Cars, only to be told that I would be better off going with a JDM motor. what was even more disturbing is that he even recommended the JDM ECLIPSE to me!
Biggest crock of $hit that the DSM world has ever encountered if you ask me.

With that said I have an evo3 intake manifold. Not be cause its "JDM tight yo, Mia imma cop" but because it is a better design than came stock on the 2G.

Over all the 2Gs are very similar to the 1,2,3 evos. the big thing to remember is that those cars came stock with no emmisions crap(depending on country), bigger injectors(size depends on country), bigger turbos(size depends on model year), FMICs, and Sometimes different compression ratios(9 to 1 on the evo3).


My .02

-Dan
 
whats so great about JDM anyway?

It's been beaten in tight city traffic all around japan red light to red light so it's 40k miles is equal to about 80k American miles of driving and it's been shipped half way across the world. That makes it pretty special, as in specially educated a.k.a. retarded


I have a "JDM" motor in my car, but it's been rebuilt so it's a born again USDM now LOL .. it was just the cheapest long block i could find in a hurry when my other motor started spitting main bearings. And there's not a god damn thing special about it except it came with some weird ass markings on it from being scrapped in japan. Which bring me to another point, japan is so strict on emissions and car repair is so expensive there that their cars are considered "worn out" and scrapped at that magic "50k miles" that all the "JDM motors" guarantee to have on them. SO in short, you're buying a worn out motor from another country and unless you got the turbo, ECU, and harness with it, there will be no difference in it and a worn out 6 bolt from here in America.
 
http://www.dsmtuners.com/forums/newbie-forum/279691-jdm-engine-specs.html

This wouln't be the guy that wants to "run" against you would it?
His Profile says 99 gsx, but he says he just bought a spyder gst with a "jdm" engine.


-Dan

LOL yeah it is he seem like he really wanted to take me on, even on my roads. don't know y but i didnt think it would b a difference whether he had usdm or jdm under the hood cause his convertible and running stock plus in my roads his never been soo said "not today" but i still wanted to know about these engines.
 
Why not race him at the strip? Then he won't be able to say, "well you jumped the gun off the line" after you beat him. The timeslip will be proof of what happened.
 
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