Japanese Spec. 4G63

[TurboMitsu]

The best engine I’ve had Yet!
Very smooth running, great throttle response, and much more power (stock)
The engine drops in with no problems, ill need to keep your old throttle body,
Cam sensor and Coils (different connectors)
Engine came with the “Cyclone” intake, which will give you great spool-up and low end torque :)

[TalonEvolution]

Where do you go about getting one of these? Is it a 7 bolt or 6?


Originally posted by TurboMitsu
The best engine I’ve had Yet!
Very smooth running, great throttle response, and much more power (stock)
The engine drops in with no problems, ill need to keep your old throttle body,
Cam sensor and Coils (different connectors)
Engine came with the “Cyclone” intake, which will give you great spool-up and low end torque :)

[Lipster]

Virgin here again...
What are the differences between the cyclone and non cyclone? How about HP/Torque?

[Saintdog]

Can you put a 2G japanese motor in a 1G?

I know it depends on if its a 6 bolt or 7 bolt...

But do the mounts still work the same or not.

Instead of maybe getting all that engine work done to my car I will use a stock Jap motor untill i have the "extra $$$" to really do it right.

What do you guys think?

P.S. I can get the 2G Jap motors fo about $800-900 good deal?

BTW TalEvo... you can usually get them at an import used motor place. I have found a place in San Bernadino, Calif.

Look in the Recycler Paper if you have them where you live.

[Edited by Saintdog on 11-06-2000 at 03:23 PM]

[ohmygawd]

Besides the cyclone intake, what are the differences between the JDM engines and the ones in our cars?

[thrownrods]

ive even heard on the post while bacc peepo get those cyclones from japan with 16g's on them sumtimes...he siad his particulare engine wuz in bad condition tho..i think the only diff is the cyclone intake..which is supposed to give better spool up and great low end power.

[Lipster]

IF that is the only diff (Intake) it would be pretty cool to be able to get a hold of just the Cyclone intake!

[TurboMitsu]

The differences in jap engines:
Cyclone intake - awesome low end and spool-up
Higher compression - low end and spool-up again :)
510cc injectors - more fuel
Big 16G - ocasionally... - mine came with 14B,
The engine I got is the 6-bolt, "big rod"

With the engine completelly stock, the way it came with original turbo (without any porting, stock I/C, and pyping) I was able to do 13.2 1/4mile, at 17Psi of boost :)

[flluke]

Will the cyclone work with the US ECU? If youre doing a turbo for turbo swap.

[Lipster]

No problems with mine. The intake is vacuum controlled on mine...

[V8SpankR]

Originally posted by TurboMitsu


With the engine completelly stock, the way it came with original turbo (without any porting, stock I/C, and pyping) I was able to do 13.2 1/4mile, at 17Psi of boost :)

At 17psi you can run a very low 13 on the stock U.S. 4G63 and 14B with intake and exhaust. Did you make that run with that motor with the rest of the car stock? I ran a 14.35 up here in Denver (remember that is over a mile high) with only an intake,2 and 3/8inch catback and my mbc set at 16psi.

[Bulletproof]

Will these Jap spec Engines use the same engine/Intake/Exhaust mods as a 2G DSM? And if so where can I get one?

[Edited by Bulletproof on 08-16-2001 at 09:33 AM]

[rawb]

I'm still new to the whole import scene, are the Jap. spec engines a direct bolt in for a 2g GS-T? If not is it alot of work to make it fit?

[teameXplicit]

I heard that the jap intake manifold doesn't flow as much and should be switched with the U.S. one. The jap one has smaller runers. 8 small ones if Im correct. 4 for low end and 4 for high end. It runs off a butterfly switch. Thought Id throw that out. Not sure if its true.

[BMorganPA]

the jap spec engines have higher compression? dont you want lower compression for a turbo car?

[busted91]

higher compression is better but to high will blow ur head. lower compression is good because it avoids detonation real good with high boost. usually race cars use race gas 108 octane or higher. we can only use 93 thats why lower compression is better then higher compression

[evol]

you still havent said where you can find one of these!

[flluke]

Check out this URL

http://www.roadraceengineering.com/4g63motorsearch.htm

Should tell you everything you need to know.

[n/t_dsm]

Do you need the JDM tranny and transfer case for the cyclone?

[Street_Reaper]

When doing the swap on a 1G GSX (90) what all has to be done? Can you just get the engine and do a straight swap and your good to go? Or do you have to buy the trannie and what not? Where is a good place to get a good stock engine?Thanks,

Jesse

[Lipster]

Originally posted by n/t_dsm
Do you need the JDM tranny and transfer case for the cyclone?

Nope. I have my trans from a 7 bolt 1G in place. No problems.

[Lipster]

Originally posted by Street_Reaper
When doing the swap on a 1G GSX (90) what all has to be done? Can you just get the engine and do a straight swap and your good to go? Or do you have to buy the trannie and what not? Where is a good place to get a good stock engine?Thanks,

Jesse

You're in a bit better shape since you already have an external air to oil cooler. MOST from what I have seen have the air to oil cooler. SO, it depends on who does it. Throttle body is different, intake (obviously) is different, A/C wont fit as is (need some tweaking with the A/C bracket) plug wires are going to need to be custom made if you keep the JDM coil pack in the same place...

[chryslerbishi]

hey someone said the jap engines have higher compression. does anyone know what the compression is on them? is there any other differences between jdm and us besides the intake and possibly different turbo and injectors?

[darkstarGSX]

I believe its 9 to 1

[Lipster]

I am unsure of compression... I've also heard 8.5:1. It is hard to tell with these motors. It is a craps shoot...

[InteClipse]

has anyone ever put a cyclone in a 1.8 NT..??..??

how possible is that
thinking fuelline/ecu-harness/etc.

[Turbo2]

Originally posted by InteClipse
has anyone ever put a cyclone in a 1.8 NT..??..??

how possible is that
thinking fuelline/ecu-harness/etc.

I think that you would be better off getting a turbo car than putting your money into the 1.8L. I went out and bought one because I needed more power and there's so little you can do performance-wise for the little 1.8. If you really want to swap the engine though, you'll need everything off of a turbo car from the engine, like harnesses, relays, the whole nine-yards. Get what I'm saying?

[jung21]

flluke,
is the jdm louder then the usdm? I have a jdm and I find the engine louder and not an exhaust loud either.

[eazyc10]

anyone know if the jspec gets crankwalk?

[Lipster]

Originally posted by jung21
flluke,
is the jdm louder then the usdm? I have a jdm and I find the engine louder and not an exhaust loud either.


Hmm... mine purrs... not a tick nor tap.

[flluke]

Originally posted by jung21
flluke,
is the jdm louder then the usdm? I have a jdm and I find the engine louder and not an exhaust loud either.



Mine has some lifter tick, or it could be the coil pack, it's not really all that bad. Sounds more like it comes from the side of the intake with the coil pack. I used the US intake which has 145k miles on it, so it may be pretty dirty which I hear can cause spark knock. I think I will do that trick with the tranny fluid and vacuum hose to clean it out. Other than that, she runs perfect.

[shortdahri]

If i were to do a 4g63 Jap Spec swap in my 2G is it literally a straight swap (other than the switching of the intake manifold)? Will the same motor mounts work? Will the car pass emissions after the engine has been dropped in? Thanks guys.

[Junior]

I also heard the Comp is higher, like that in the 2gs. I donno but when I looked at the "JDM" piston numbers on the dome, it was the same as the US 1g pistons, 2gs have a different letter on the end of teh numbers. Either way I would like to know for sure.

SBR4

[jung21]

It sounds like its coming from the valve cover. I recently bought this car and I have driven other Talons but this one sounds very hollow, I thought it was cause it was JDM. I thought mabey it was the Balance shafts but its more of a sound not a vibration. It's not bad at WOT, its when I get off the gas, even a little, is when it is realy loud. Could this be the BOV? I am a former Honda owner and so maybe I'm just paranoid cause I'm not used the DSM turbo sound.

[Pete 97 GS-T]

Wow. Lots of questions asked, but none being answered. I'm curious to as to a bunch of stuff already asked too.

- Evo III direct bolt to a 2G (fwd and awd?)

- Emissions?

- Do they crankwalk?

Pete

[darkstarGSX]

pete, if it does not pass smog then you can take it state ref. My friend has a civic with a t4 turbo, full exhaust and all the necessary injects and it did not pass smog so he took it to state ref and they gave him a sticker to pass. Not sure exactly what the exchange was maybe he had to pay a fine, again I am not sure.

now will someone answer the question about the evo engine being dropped into the 2g!!

I also heard that the engines with the red valve covers mainly come from GVR-4 and that the ones with silver valve covers are the actuall evo engines, I read that on RRE somewhere.

[TrUaVaRiCe_Talon TSI 90]

I have the J-spec. and its the best one. i got it and right when i put it in i was running 22 psi. all i have is a GReddy cat-back, K&N air filter, and a boost controler and i run a 12.66 1/4 @ 106.52 MPH. i have ordered many more things, we'll have to wait to see the results to what i run now.

[SlowSpyder]

According to RRE, you cannot fit an EVO engine into a 1G... here's the link:

http://www.roadraceengineering.com/4g63motorsearch.htm

Anyone find out anything on the compression yet??

[dustey]

i have sen the approximate cost of a j-spec motor, but what does it cost, when its said and done for installation and all that jazz??? anyone had a shop do it for them?

Dustin

[darkstarGSX]

A shop will screw you! Find a friend! There is this girl I know that spend 8,000 to have her civic hb converted to a manual wih a GSR. SCREWED. And that was just installation. We all told her not to do it but damn she didn't listen. HAHA

[darkstarGSX]

"They will not bolt into a 1G because there are no provisions for the front and rear roll stopper motor mounts that bolt to the block. Everything in Japan from 94 and up has the front and rear roll stopper motor mounts on the transmission 2G Eclipse style. Many people are running around yapping about how they have an EVO motor in their car. If it bolts into a 1G, it isn't an EVO motor." LOL, I knew I wasn't lying when I said I red it somewhere...

More specific:
"If it bolts into a 1G, it isn't an EVO motor."

http://www.roadraceengineering.com/4g63motorsearch.htm

[darkstarGSX]

Pete,

I talked to another DSMer the other day which is planning on doing this engine swap. He talked to buschur and he told him that all he needs to do is swap flywheel?

** And all these people claiming to have these engines, can you provide pics? **

[graf703]

Alright, another new guy here....

From what I've read there are evo engines and then the cyclone engines... where did the cyclone engines come from??

Would someone with a 2g dsm that dropped in the evo engine (not cyclone) please post and solve our problems!!!! What needs to happen for that swap?

[GunnaGetOne]

The Cyclone engine comes from (90-91?) JDM Galants. They drop in a 1G with minimal modification.

Yes, you CAN put an EVO engine in a 2G, while everything is possible with enough money, it would cost way more than most people are willing to spend. There would be a lot of modification involved, especially since the EVO engine sit backwards compared to the 1G/2G 4g63.

[diambo4life]

Originally posted by GunnaGetOne
There would be a lot of modification involved, especially since the EVO engine sit backwards compared to the 1G/2G 4g63.

I think he meant EVO 1-3 engines. ;) Those should "drop in" a 2G. I don't know why everyone kept asking the same questions while the RRE link on the first page pretty much answered everything. :dunno:

[Taboo]

Originally posted by diambo4life
I don't know why everyone kept asking the same questions while the RRE link on the first page pretty much answered everything. :dunno:
Because clicking the link and reading something on one's own before asking questions is just a way too much work.

http://www.taboospeedshop.com/DSMtalk/spoonfeeding2.jpg

[nukefission]

Wow this thread is old. What ever happened to TurboMitsu?

[gimmie11s]

Originally posted by diambo4life
I don't know why everyone kept asking the same questions while the RRE link on the first page pretty much answered everything. :dunno:

exaclty! i guess reading is a lost art these days.

"j-spec" 4g63's are the same longblock wise, as us motors. most jdm motors come from galant vr4s in japan. they have 6 bolt cranks, 14b turbos, and 7.8:1 compression. the only different configuration you can get is a galant vr4 "rs" motor (510cc injectors, 16g turbo), or an evo1-3 motor which is virtually identical to a 2g motor, longblock wise.

jdm 4g63s are NOT mysteriously fast with bigger secret turbos and tougher bottom ends stuffed with titanium coated forged anodized angle cut cranks and super polished top secret aluminzed heat treated spew coated pistons....

[TurboMitsu]

Originally posted by nukefission
Wow this thread is old. What ever happened to TurboMitsu?

:) Still here, checking in on you guys once in a while, just making sure everyone is playing nice :p

[MiSFiTz]

Is there anywhere i can get a 7bolt engine cheaper?

I called almost all them places and there like 1600+ shipping which is like 135 to where im at

I cant afford that lol

I need a engine...

[rgeier11]

Rebuild you engine or buy a blown one on the trader and build that.

[graf703]

I found one for 800 in great condition w/ 85000 miles on it... just keep watching the trader. Or you can buy my blown one from me!

[MiSFiTz]

I found one for 800 in great condition w/ 85000 miles on it... just keep watching the trader. Or you can buy my blown one from me!

Where did you get yours? if you dont mind sharing info

[graf703]

dsmtrader.com he ended up only being an hour away from my house. You just have to look around a little bit.... try car-part.com its a junkyard search engine... little pricier but not bad. The best thing to do is rebuild one, the convenient thing is subjective though!!!

***EDit like this one, i searched "engine"

http://www.gopartstrader.com/cgi-bin/suite/classifieds/classifieds.cgi?request=detail&id=224859&category_id=112&website=default&prev_action=search&keywords=engine&criteria=any&session=4254950546a0891a

[crazy_ugly_coyo]

I got my JDM Engine shipped for $1500. But just to be safe you need to replace all the sensors, keep your old throttle body on it, and GET RID of the Cyclone intake. They are pieces of Sh^t!!! They are a 3 piece construction that are prone to cracking, and really limit your top end. To get mine istalled it cost me about $3500. $1000 flat rate for the swap, $1500 for the engine, and another $1000 for my upgrades. I also got an Evo III turbo, balance shaft removal, and Prothan motormounts for it. My timing belt is now a kevlar belt just to be safe. The engine was garunteed to have no more than 30,000 miles on it. Seeing how I boutgh my 91 TSI AWD for $500 I could justify putting all this work into it. Otherwise dont bother!

[ken inn]

But just to be safe you need to replace all the sensors, keep your old throttle body on it, and GET RID of the Cyclone intake. They are pieces of Sh^t!!! They are a 3 piece construction that are prone to cracking, and really limit your top end.

wrong. the cyclone, when PROPERLY set up, will greatly enhance low and midrange. your turbo will spool up faster. you will get better fuel economy, more torque, and the overall driveability will noticeably improve. road racers and autocrossers love this intake. the stock 1g intake will outflow the cyclone up top by a whopping 2 cfm. using the fuel purge solenoid, and a keydiver chip(www.dsmchips.com), the cyclone will operate EXACTLY like it did on the jdm car. however, there is no provision for egr on the cyclone intake. the jdm throttle body only has 1 vacuum port, and it does nothing below about 3k rpm. if you hook up vacuum to it, it will read 0, then snap to whatever above 3k. on some jdm engines, the thermostat housing will be different, but even the usa galant housing is different from t/e/l.
the engine i got was from an automatic. they came on a lot more cars in japan than just the galant, and were available in different stages of trim. but the basic long block is the exact same as the us 1g car. lots of people covet the rs motor, which came with a big 16g and 510cc injectors. personally, i think the automatic motor is better, because it has not been beat on. the one i got was so clean, we all thought it was a new or rebuilt motor. pulling the oil cap and looking inside, what we could see looked brand new. later on, when i installed my hks cams, the inside of the head was brand new clean. when i pulled the exh manifold to install my 2g ported one, i could tell the motor had been run, and 1 exh stud was even broke. what little oil that was left looked fresh, as did the coolant. i changed out all the belts/pump/pulleys/tensioner. with the engine on a stand, this takes like 30 minutes. i recommend you do this now, it will NEVER be this easy.
the automatic jdm motor does NOT have different cams, or 390 injectors. this was only a us option. the jdm comes with 450's and the same cams as the m/t. the sheet metal piece between the block and the trans is DIFFERENT. you MUST use the m/t one, or the starter will not bolt up. we found this out after we had everything bolted up, and were trying to put the LAST bolt thru. had to remove the trans, clutch, flywheel, etc. what a mess. also, the back of the crank has a spacer in it, which is a beyatch to remove. i finally cut a groove in it with a dremel and a carbide bit, then whacked it, and it came right out.
if you google jdm engines, you will find dozens of places that sell them. i got mine 3 years ago for 970+206 shipping. had to pay extra shipping, because i needed it delivered on a truck with a lift gate. it comes on a pallet, and if you dont got no help, you AINT gonna get it off the truck. some come with the trans and xfer case also, try lifting THAT off the truck. rre will inspect the motor for you, for a small fee.
beware of the rs transmissions. they have a different final drive, and if you install it, and your rear diff is us stock, at speed the center diff will overheat and lock up ALL 4 WHEELS. there have been several cases of this.
i think this was a GREAT deal, it got me back on the road in a week, and ti runs great. i would do it again in a heartbeat.