ok so i am trying to find a 2jz to drop into my 89 i am haven a hard time finding onethat is not jdm. the prob with this is that they are only 280 bhp and us i think is 320 what is the diff? i heard it just fuel injectors idk. what could i do to the jdm one to bring it to the 320 or more bhp that i am wanting?
jdm 2jz vs us 2jz
- Thread starter karlmk3
- Start date
injectors and turbo, jdm 2j supra's use 440s, jdm 2j aristo's use 380s both come with different turbo fins but are not ceramic
Really all you'd have to do is change the injectors and turbos with the usdm ones. The jdm twin turbo's are steel i believe and the ones the usdm ones were was ceramic
http://www.supramania.com/forums/showthread.php?t=92616
Really all you'd have to do is change the injectors and turbos with the usdm ones. The jdm twin turbo's are steel i believe and the ones the usdm ones were was ceramic
http://www.supramania.com/forums/showthread.php?t=92616
carter;1388619 said:
youve got the turbos backwards, jdm are ceramic and usdm are steel
the cams are different as well, but not by much, its barely noticeable.
also, the usdm runs a hotwire mass air flow system, whereas the jdm is speed density
You can still push the 380s from 280 to 320hp the injectors dont hit their limits so a afc would tune that out.
As for the HP difference its all in the tune just re-tuning the car could get you much more power! JDM were detuned due to the gentlemen agreement some people even report the jdm 2JZ nearly dyno the same hp as the USDM
I would stick with MAP or Speed Density over MAF if you have a boost leak or upgrade BOV to vent to atmosphere have any kind of a vacume leak or upgrade your turbos to pull more then the typical maf is limited by your not up the creek like you would be with MAF.
It all depends if your doing the swap into a US car and you must go through strict smog restrictions then you must use USDM swaps to get it to pass BAR
As for the HP difference its all in the tune just re-tuning the car could get you much more power! JDM were detuned due to the gentlemen agreement some people even report the jdm 2JZ nearly dyno the same hp as the USDM
I would stick with MAP or Speed Density over MAF if you have a boost leak or upgrade BOV to vent to atmosphere have any kind of a vacume leak or upgrade your turbos to pull more then the typical maf is limited by your not up the creek like you would be with MAF.
It all depends if your doing the swap into a US car and you must go through strict smog restrictions then you must use USDM swaps to get it to pass BAR
Comparing the injectors, the JDM 2js came with 440cc injectors (minus aristos apparently) and the USDM ones came with 550cc injectors?
Is that correct?
Is that correct?
Cz.;1389219 said:
so do you think the aristo moter is worth it since i can get the r154 transmission with it. i am on a lil budget i i do get the aristo 2jzgte i will be upgading it slowly as i do have a kids one on the way so it will be a slow prosses but i have enough to get the moter do u think the 2jz aristo is worth it is my main question
If you tune the motor with a standalong or piggybacks you'll be able to get more out of the stock setup. It all depends on what your goals are and how far you want to go with them. The aristo motor isn't drop in, there's a lot more you should be worrying about than just the injectors if you're planning on swapping the motor in.
the aristo's also have 440cc injectors (side feed) not 380cc. Just get aristo engine rip off the twins go single get larger injectors of ur choice , some cams and aem and hope the r154 holds the power.
