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JDM "Cyclone" Engine - 1G

5.5K views 22 replies 12 participants last post by  LORDPAXIN  
#1 ·
After my timing belt snapped a few weeks ago, I was in need of either engine work or a new engine. With 150,000 on the old engine and needing my car back ASAP, hey, why not be the guinea pig and go with the JDM?

I did a lot of homework before I bought it. I searched and read virtually every thread containing "jdm" or "cyclone" on this site. The biggest problem was that there was good info, but it was scattered. I called Turbotrix for some answers too. Well, here's my take on the swap, and a big list of places to get it online. I've tried to make it as complete as possible.

Got the engine from Lucky Star in Toronto for like $1,320 American Dollars, shipped. That includes $200 (Canadian if I remember correctly) for the turbo. If you have a working 14B or better and order from Lucky Star, get the 4G63T turbo motor without the turbo, since they are billed individually. Not too bad I guess, since my mechanic found a US engine for like $1,200, with unknown mileage and abuse. At least the Japanese engines are thought to have 30,000 to 50,000 miles. When it arrived, it seemed to be in pretty good shape, except for a few minor scratches on my pretty red valve cover :( and a dent in my oil pan. Oh well, we used the old oil pan.

All this info is for my '91, so 2G info, I have no clue.

As far as other parts that were swapped (I'm not a mechanic, but I saw most of the swapping going on):

- Old intake manifold and throttle assembly
You CAN use the "Cyclone Turbo Intercooler" manifold, but it does take some work. My mechanic already had it taken off when I got to the shop. The coil pack is in a different location in relation to the engine, so you will need custom plug wires or the ones that came with the new engine. And, you'll need to mess with the A/C bracket if you want to make it physically fit. I will work on making the Cyclone fit some other day.

- Cam Angle Sensor
The new sensor had a different connector on it. Just pop the old one off and toss it on.

- Thermostat Housing
I believe that the filler for radiator fluid was on the JDM radiator itself, so you need to use your old thermostat housing. Which leads to...

- Water pipe
The water pipe below and behind the exhaust manifold needed to be changed because I believe the new pipe didn't have an outlet that the old pipe had.

- Power steering pump

- Compressor outlet elbow
Not sure if this is because I used to have a 13G, but this elbow was different and wouldn't match up to my existing intercooler piping.

- Fuel rail hose?
I don't quite know what to call it, but its the fuel feed line on the inlet side of the fuel rail. Mine was either cut or shorter than my old one, don't remember exactly.

- Oxygen Sensor
The new engine's sensor had 2 wires I think (1990?), my old setup had 4 . Besides, why not put a new one in anyway?

- General maintenance
Spark plugs, new belts, timing, oil, etc....

Other mods and parts that I swapped for the heck of it:

- Oil pump
Why not? The two were different, so we threw the old one on.

- Valve cover breather hack
The valve cover breather comes out at a 90 degree angle. I just cut the elbow off.

Some other info to try to answer some questions I've had and seen on here:

The engine came with a 14B and 450cc/min injectors. Interestingly, it came with NGK BP6ES spark plugs. Hmm… It looked real clean inside and out, even though they steam clean them I think. The Cyclone intake is actually 2 pieces, strange. It comes apart about halfway through. I believe its deal is that at low RPM, it keeps 4 runners open and closes 4 to increase intake velocity, then opens the other 4 at higher RPM for more flow. It uses this wastegate-actuator-looking-thing to do this. BTW, If you have a Haynes manual, look around for intake related stuff. Guess what diagrams you'll find sometimes :) American writing, diagrams in American books, makes me believe this was once available here. Probably not though... What else, mine was a 6-bolt, ASK FOR IT, I did. It works fine with the stock ECU. It also works fine with the stock tranny. It's because it's basically the same motor as US 4G63s. Hence you won't see me bragging that I have this super imported motor, it's pretty much the same thing, except, I will go out of my way to let you know that my valve cover is RED :D

After I got my few kinks worked out (vacuum leak, etc), it seemed to run good. My first 3 tanks were 19, 21, and 22 MPG. I’ll let you know how it’s going in the future.

As for a list of vendors, everyone points to the list on the Road/Race site. While this is a good list, it lacks both websites and vendors outside of California. And, since the kiddies like to use the Internet these days, I figured I'd do some research. I called every one of these vendors, some had the engine in stock, some charged more than others. I don't work for any of them, and I don't know anything about any of them. They're just a list of sites I found online, and I think I'll email RRE with it since everyone refers people there...

http://www.soko.com
http://www.a1jdmengines.com
http://www.jemco.com
http://www.streetimports.com
http://www.jspecauto.com
http://www.risingsunengines.com
http://www.kwcengine.com
http://www.soshinusa.com
http://www.japaneseusedengines.com
http://www.midwest-engine.com
http://www.tpautomotive.com
http://www.progressiveracing.com
http://www.infinitemotorsports.net

(I wasn’t sure if I could put phone numbers on here, maybe a moderator could clear that up. I was gonna post the phone numbers beside the addresses. I read the rules about vendors, but I wasn’t sure if posting commercial phone numbers only applied to users who are vendors. If I can put them up, I’ll repost them to make it easier for someone trying to make some phone calls real quick.)

That's about all I could think of. I felt I owed some sort of contribution. If you have any questions, ask me. I won't know anything about 2G though, just questions about my particular swap.

Oh, and if I had to do it again? Sure, why not. An engine is an engine. But, only if it's an inexpensive one. Some of these people want $2000 though. It all comes down to your personal situation. If you can get a good price on a US engine or you can do engine work yourself, by all means, do it. If you don't have tools to pull an engine, have a shop do it. If you need an engine ASAP and can't wait for a rebuild, hey, all the questions have to be answered by you. You can't ask someone if you should get a JDM motor or not, because everyone is in a different situation than you. It all depends on your budget and needs. Just don't pull your perfect motor for a Japanese motor, because I'll have to slap you :D I hope this all helps some people in some sort of way. Good luck!
 
#2 ·
dunno how old this post is but anyway.. im going thru the same situation you were, lookin for a JDM engine. Now i have a good "one post reference" going about swapping a JDM 4g63T.

well said thanks!
 
#5 ·
Marq4g63 said:
IT's Official i already ordered my JDM 4G63T from SOKEN ( www.soshinusa.com ) in California!

Should be here by early next week, im on a countdown. I'll Let ya'll know about it when it arrives.
hey man be sure and let me know hoe everything goes, and how well the service was with that company! when i'm ready to order i'll be sure to get with you to see how things went went ur swap.
 
#6 ·
I already made a list of wat im gonna need for the JDM swap. lemme see..

t-belt $40, p. steering belt $11, alt belt $9, timing tensioner$60, water pump$55, tranny fluid 3qts.$30 etc. _gonna be over $200 for parts and not to forget the labor $700 :\

hope the swap goes well. ill keep ya updated! later
 
#7 ·
I got my JDM from NOYAN. For 1395 shipped to the door in two days it was awesome, today finaly got it to run but the throttle body gasket is leaking severly and i got old gas. Work out a few bugs and I think itll be fine. This is the second engine we ordered from them and so far so good.
 
#8 ·
GSX507 said:
I got my JDM from NOYAN. For 1395 shipped to the door in two days it was awesome, today finaly got it to run but the throttle body gasket is leaking severly and i got old gas. Work out a few bugs and I think itll be fine. This is the second engine we ordered from them and so far so good.
Are u running the Cyclone manifold and how did u get the butterfly valves to work?

if so, how do you like it?
 
#15 ·
anyone out there done a jdm swap in a 90? i have done this swap in a 92 that had the old motor in me and my friend were able to pull the necessary components off the old motor and reuse them on the jdm motor. however, i am about to undertake this swap on my friend's 90 tsi, but he only bought the shell...needs motor, trans, and ecu to run. i own a 90 gsx myself and know that locating and using 90 parts is sometimes a PITA. here's the list i have come up with so far:
90 ECU
90 throttle body
90 coil pack
US intake manifold
thermostat housing (top)
CAS
US AC compressor (if he decides to keep AC)
All new radiator hoses
US 1g radiator (car came without this)
Accessory belts and timing belt
Water pump

anyone see anything that i may have missed out or that they would suggest? by the way, because my friend has a 90 tsi i have one thing that i think may cause some problems...i believe that the 90 shift cables that hook to the tranny are a different length than the 91-94 shift cables. is this true? what can i do to solve this if the jdm motor ends up being a 91 or later? hopefully it will be an 89-90 galant motor which should be compatible. well let me know how this list looks guys. can't wait to get started on his project.
 
#16 ·
yeah as soon as i sell the buick i will be hunting for a motor for rebuild and definently going for the gvr4 tranny soon. maybe i will go jdm with the motor too? good info tho and thanks.;)
 
#17 ·
JDM Cyclone engine-1g

Hey guys,

I searched for a month calling everyone for one of the cyclones and they are outrageous on the prices but I found one company that had the same price but with a full 5 year 50,000 mile warranty on their jdm engines I couldnt believe it I paid 1795.00 shipped for the engine with the turbo and everything ( no tranny) Here where I live we do not have any inspections on our vehicles so I opted to use the cyclone intake and hooked the vac. line from I believe the purge solenoid and it has worked fine actually it rocks!!!! I ported the exhaust and intake slightly and the turbo spools up alot quicker, I believe taboo speedshop has the diagram for the vac. lines and where they need to go and which ones you really do not need. this is only my .02 cents but I am truly happy with my cyclone. I have the phone number for the company if anyone is interested pm me and I will give it to ya...
 
#18 ·
Re: JDM Cyclone engine-1g

ADDICTEDTOBOOST said:
Hey guys,

I searched for a month calling everyone for one of the cyclones and they are outrageous on the prices but I found one company that had the same price but with a full 5 year 50,000 mile warranty on their jdm engines I couldnt believe it I paid 1795.00 shipped for the engine with the turbo and everything ( no tranny) Here where I live we do not have any inspections on our vehicles so I opted to use the cyclone intake and hooked the vac. line from I believe the purge solenoid and it has worked fine actually it rocks!!!!
For that price most places would included a tranny. Hell, i paid $1300 for the motor which includes the int mani/exh mani/turbo ofcourse.. shipping killed me tho $271 :)

well.. me and my mechanic decided to make the cyclone fit to be able to make use it. What the hell is JDM w/o the cyclone manifold right??
 
#19 ·
my purchase

I ordered a JDM GVR4 entire front clip, i am going to do a engine and tranny swap, aswell and a manual tranny conversion, I paid 1500$ flat for the clip, and shipping is 486$$$

wish me luck, i also have opted to use the cyclone,

and since i have the entire front end of the car, the comptuer, and everything, it should be simple.
 
#20 · (Edited)
aite here she is, my jdm motor, looks sharp...altho i does look like its been sitting for a while!

it was from an a/t car...
as u can see its still even got the galant lower ic pipe on the turbo outlet (black pipe on top of turbo)
Image


here it is in the back of the truck...so much for shipping!!..it was only a 25 minute drive too :D
Image


im gonna do what the original guy said when im installing her...plus i have to do a few more stuff things to convert it to my m/t ride

so far so good...hmm
 
#22 ·
too low price

I'm not sure it's a JDM cyclone or not, but I found a used 4G63 on Ebay.
There are couple guys importing engines from Japan.
They're saying engines are usually 30k to 40 K miles on them.
Those replacement engines come as longblocks. They usually come with intake and exhaust manifolds, distributor, fuel injection or carburetor, pulleys, cut wiring harness, etc.

Their asking price is around $550 to $600. Shipping will be about $200.

The price is a lot lower than what you guys are talking....
Do you guys have any experience with these guy on Ebay?


Nuno
 
#23 ·
Well,
I found mine on ebay.
Was for motor and tranny and shift cables.
buy it now was 1500$

i called him, and made a deal for the ENTIRE clip, for 1500$ plus shipping,

the complete assembled clip, axles, rotors brakes, the FMIC, the engine the petals, the dash, the steering wheel, everything,

plus shipping