Street Legal JDM powerplants

[Oakey]

I am considering buying a japanese import (JDM) engine in a front clip from a Toyota Altezza (Lexus IS300), this is the same motor in a Toyota Supra. L6 3.0 Liter Twin Turbo.
The Engine will pass smog in the tailpipe, but JDM motors are not up to USDM specifications, ie, no EGR etc. Is anyone aware of exactly what modifications have to be done to make the japanese model pass US specifications (or at least the ones that will alow me to be emissions certified???)

Jay

[b18cya-T]

why niot just get a usdm supra motor & swap it in?

[Oakey]

USDM powerplants cost many times more.

The plan is to put a 2JZ-GTE into a toyota 4x4 (I know many who have don similar swaps). The cost of a USDM engine (no ecu, no radiator, etc) is over 4 times as much as an imported front clip including transmission and all electronics. So that is why JDM powerplants are preffered. Emission experts tell me if I can get it up to US spec it should pass emissions, but what do I need to do that, I don't know exactly what needs to be changed... EGR, Manifold??? I have no idea.

[Chevy454]

I doubt that the altezza comes with the SAME 2jz as the Turbo supra if it is a NA motor.

[86civicsi]

If your putting it in a toyota truck why not just got for a 350 chevy .... there are companies who make bolt in kits for that

and the domestic guys will love you for it

I had a friend in Spokane who put a buick V6 out of a firebird in a 79 toy 4x4 ...... it spun the wheels while in 4 wheel on pavement with 33' tires on it ...... shocked the hell out of the Les Schwab guy who had just asked him if he had enough engine for those tires :)

[Cheio]

Originally posted by Chevy454
I doubt that the altezza comes with the SAME 2jz as the Turbo supra if it is a NA motor.

I agree for once.

[Oakey]

Heheh, Domestic....????
Yeah I could do that, but when it comes down to it, the fact is that the domestic motors have unfavorable horsepower and torque curves, unless I plan on replacing my whole frame, axles, diffs etc. Most domestic engines are large bore engines with substantial low end torque, but have relatively low RPM, the twin turbo jap models on the other hand have what I want, linear power response. And it is built Toyota tough, no breaky, all while improving my gas mileage, not making it worse. Besides I kind of have a project that has been challenged... build a 100% all toyota truck, people have done it w/ 7MGTEs and a few w/ 2JZGTEs, but no street legal 2JZGTE 4x4's.

The Engine actually IS the same btw (so is about 80% of the rest of the car)

Jay

[Maverick]

There is a toyota 4X4 for sale in the paper with a 350 in it.

[Oakey]

And that answers my question how???

heheh, common guys quit the ADD.

[SleeperZ]

This forum will probably not be able to answer your question, since we are in Colorado, and you live in the Socialist Republic of California.

Personally, I'd do the swap, and show up at the emissions station and let them figure it out. As long as we have the cat and the sealed gas cap, and pass the emissions test, nobody cares what engine is in the vehicle.

[Oakey]

Yeah, seriously... red communist infiltration... my parents even have a Russian foriegn exchange student. Heheh, even washington and oregon have lax laws when it comes to this kind of thing and they are tree huggin' hippies.

Yeah I called the EPA and they just blinked at me, I am in the progress of talking to the Air Resources Board... I am leary of dropping a whole ton of money into a car and then gettign it taken off the street by the smog checkers. Maybe the thing to do is to find some corrupt smog check place and slip him some $$$.

[danegod]

Originally posted by Oakey
Most domestic engines are large bore engines with substantial low end torque, but have relatively low RPM,

so not true my friend, the chevy 302 has a very nice curve to it, and there aint no sound like hearing a chevy 302 at the strip dropping the clutch at 10000 rpm. and yes it will rev that hi, i have done it and i htought i would piss myself it sounded so good. the car that im talking about, is a '69 chevy Z28. runs about 12 with street tires on, ive never seen it run with slicks, though the owner of the car does have then for it. ill see if i cant get a pic of the car and post it up here.

[Oakey]

I finally got a hold of the California Air Resources Board and I chit chatted witht a guy for like an hour and a half, the general jist is that if I put the US EGR and other emissions goods on the car it is legit. So full steam ahead.

In california you have to put an engine that is the same year or newer then the vehicles chassis. So the big ole american beasts are out of the question. The new ones have just as much electronics as the jap ones. And yeah the Chevy V8's do sound cool, but a supra w/ carbon fiber exhaust sounds wicked ferocious when the turbo kicks in too (:

http://www.supertmotorsports.com/dave.html

In case you were not impressed with the almighty JZ
"The truck's first dyno outing showed numbers in excess of 700 horsepower (crank) without nitrous. Off the trailer on it's first outing the truck ran a 10.5@132 MPH. The 2JZ head and block are 100% completely stock."

[Oakey]

and these look like A/T tires... hahahhahahahah
http://www.supertmotorsports.com/photos/picture008.jpg

Jay