Engine Swaps Discussion about motor swaps ONLY.

street legal swap

Old Jan 30, 2004 | 03:50 PM
  #1  
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street legal swap

I have heard that a japanese engine is illegal to swap into a car and use on public roads. In California that is. So I was wondering what would be a good engine to swap into a 240, that is US spec. I was thinking about a US spec 2jz-gte from a supra, but i dont know where i can get info on this swap. I dont have a 240 yet but i plan on getting one and i dont like the stock power on the car, but i heard it handles like a dream. Any advice would be helpful, thanks.
Old Jan 30, 2004 | 05:12 PM
  #2  
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Yes they are illegal, in all 50 states. There are no good U.S spec engines to swap in. The best bet is to turbo the existing engine. I doubt a supra motor would fit. I could be wrong though. Power from the KA24E(89-90)is 140 hp and 150 lb ft of torque. KA24DE(91-98) is 155 hp and 160 lb ft. And yes the cars handle great stock and even better when tuned. Good luck finding a 240sx
Old Jan 30, 2004 | 07:26 PM
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Yea a 2JZ will fit, but im sure there is ganna be quite a lot of modding to do. How bout a RX-7 engine(13b?)? That can crank out some good power.
Old Jan 31, 2004 | 10:09 AM
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i read somewhere on the EPA or DOT website that the only legal swaps are engines from newer versions of the same car. other than that, we're S.O.L. i'll see if i can dig up the page.

EDIT: found it. it's a PDF file on the EPA website. here's an excerpt:
For light-duty vehicles, installation of a light-duty eng~ne into a different light-duty vehicle by any person would be considered tampering unless the resulting vehicle is identical (with regard to all emission related parts, engine design parameters, and engine calibrations) to a certified configuration of the same or newer model year as the vehicle chassis, or if there is a reasonable basis for knowing that emissions are not adversely affected as described in Memo 1A. The appropriate source for technical information regarding the certified configuration of a vehicle of a particular model year is the vehicle manufacturer.
here's the actual file:

http://www.epa.gov/Compliance/resour.../engswitch.pdf


Last edited by Sil40_Mayhem; Jan 31, 2004 at 10:35 AM.
Old Jan 31, 2004 | 10:46 AM
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Nice find Sil, I heard about that but didnt find any real info.
Old Jan 31, 2004 | 11:02 AM
  #6  
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thanks. i found it on a thread from waaaay back in March of last year. i vaguely remembered it, so i decided to hunt through the engine swaps forum until i found it.
Old Jan 31, 2004 | 03:11 PM
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If you wanna go fast you've got to give up something (legality, and a left nut?) Here'a a link reguarding the 2JZ swap into the 240 2JZ swap into 240 . Only if I have $10k to burn .
Old Feb 1, 2004 | 05:23 PM
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are there street legal tubo kits fot the ka engine? If not, how hard is it to push 200 rear wheel HP from a N/A ka24de?
Old Feb 1, 2004 | 10:40 PM
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holysh!t look at that thing. that is rediculous. a 240 with 1000 hp. fckin crazy
Old Feb 1, 2004 | 11:14 PM
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Originally posted by unreal89
are there street legal tubo kits fot the ka engine? If not, how hard is it to push 200 rear wheel HP from a N/A ka24de?
As of right now, there isn't any CARB legal turbo kit for the 240sx IIRC, I think Greddy is working on it (96-98 s14). Do a search for KAT posts, you'll find all your answer there.

Last edited by WilloW; Feb 1, 2004 at 11:17 PM.
Old Feb 6, 2004 | 07:19 PM
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mckinney motorsports does a 49 state legal RB swaps, was in the SCC issue for mckinney's Sil-Line drift machine
Old Feb 6, 2004 | 10:36 PM
  #12  
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Everywhere except cali lol. Funny cus they are based in cali. I never heard that it was "49 state legal"
Old Feb 7, 2004 | 08:30 PM
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i love cali any all but its sucks to do power plants and stuff...
Old Feb 10, 2004 | 12:13 AM
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California hates anything that isn't stock. "Convince" your local smog shop to pass you if you have to !
Old Mar 12, 2004 | 01:25 PM
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You would think though having a KA20 and the SR20 sawp that it wouldn't matter. Because technically it is the same companies motor for the same car.

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