Difference between USD and JDM?
#1
Difference between USD and JDM?
Okay....I've come up to this awesome offer, its 2k for a 87 TII body, but s4 JDM motor, needs a new thermostat/radiator and thermosensor(how much do those go for) might need to be replaced.
anyways the real question is what is the difference between a JDM motor and the USD motor of the s4's
anyways the real question is what is the difference between a JDM motor and the USD motor of the s4's
#3
I break Diff mounts
iTrader: (1)
It can if you add a ACV and cat to it.
I have a S5 Jspec in my S4 but have removed both of those plus the solenoid rack.
When Emissions time comes up for me next year I will slap a ACV on it and a cat and then wire the ACV to pump constant to the cat.
S4's do have EGR valves but unless you have a rotary pro searching for it they won't see if it's gone. Or you can tell the Emissions guys it is a replaced engine from a newer Rx7(S5) and that those didn't have EGR's.
I have a S5 Jspec in my S4 but have removed both of those plus the solenoid rack.
When Emissions time comes up for me next year I will slap a ACV on it and a cat and then wire the ACV to pump constant to the cat.
S4's do have EGR valves but unless you have a rotary pro searching for it they won't see if it's gone. Or you can tell the Emissions guys it is a replaced engine from a newer Rx7(S5) and that those didn't have EGR's.
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When Emissions time comes up for me next year I will slap a ACV on it and a cat and then wire the ACV to pump constant to the cat.
#9
I break Diff mounts
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Originally posted by pip
You could also just use the corvette smog pump trick from www.1300cc.com when emissions time comes along.
You could also just use the corvette smog pump trick from www.1300cc.com when emissions time comes along.
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Re: Difference between USD and JDM?
Originally posted by CyborgRyu
what is the difference between a JDM motor and the USD motor of the s4's
what is the difference between a JDM motor and the USD motor of the s4's
To fully comply with emissions regs in the US, S4's are required to have EGR valves fitted. There's no way to fit one to a J-spec LIM, so if this is an issue you'll need to fit a US one.
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well i didnt get any more info on it, but i DO remember now, that it is in fact on the IM either lower or upper, but if its a TRUE full JDM motor you will NOT pass smog, but you could put the US parts onto it to pass.
#15
I break Diff mounts
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That will pass your through the sniffer but you have to pass visual as well.
I plan to just tell the guy I put a newer engine in it if he asks.
The law here says you can go up in engine model years but not down.
S5 engines seems to be easier to get than S4's right now too. You also get a newer engine so you get a better chance of getting a healty one.
I plan to just tell the guy I put a newer engine in it if he asks.
The law here says you can go up in engine model years but not down.
S5 engines seems to be easier to get than S4's right now too. You also get a newer engine so you get a better chance of getting a healty one.
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