Juicing up a 1JZ-GTE

[Damstrait]

I think the 1JZ-GTE must get its populer name from being so easy to get power out of with only some small mods,

Dose anyone know what works on these engins? I hear with new intake, itercooler, exaust, computer and boost controler it is posable to make close to 300kw at the wheels,

as she stands mine has a pod, bov, a busted up 3" exaust from being to low and just I found out after instaling a boost gauge she runs 12psi, havent had time to fined the boost controler yet as the engin bay is chockers.

any help such as products, prices, where to buy or just any info on the engine would be awsome and apreciated as I think its time for more power from my JZX90.

----Steve

[upgarage]

look into a single turbo kit
try www.importbitz.com

[Nemi]

if you have standard turbos best you be changing them before the ceramic wheels fall off.

[TJ]

if you wish to play the risky game of stock turbos the following is a good recipe

dumps and full 3 inch exhaust
pod etc
cooler
safc or real management if funds allow
ebc to control boost from hitting stupid levels
fuel pump to be safe

you would be easily cracking 300 rwhp

if not do all of the above but add manifold turbo and gate
injectors

and aim for whatever your turbo can make

[Nemi]

*throws ceramic wheels into the thread*

[[2_FLY]]

Careful with those things ffs

[mischief1]

300 rwhp is quite possible, maybe not 300rwkw, if anything, turbos should blow first :)

[Brockas]

Dose anyone know what works on these engins? I hear with new intake, itercooler, exaust, computer and boost controler it is posable to make close to 300kw at the wheels
Well you heard wrong about that. 300rwhp maybe.

My mods as it stands:
Exhaust
Front pipe
Dumps
Highflow cat
K+N Filter and Hacked Airbox
Front mount Intercooler
S-AFC
Bleed valve running 0.88 bar

302rwhp.

I will be trying a few more things to get more power out of the stock turbos, but I don't expect to get more than 320rwhp.
After that you need:
Big Turbo (3037, 30r, 35r are most popular)
Manifold
Gate
Water/Oil Lines
Injectors
Fuel pump

[TJ]

Headwork, cams, full ecu with timing controls , would push you closer to 330 - 40 rwhp

[Brockas]

Unfortunately timing will only give you mid range torque. At $400 for a second hand ITC it's still a good investment if you can find one.

Cams go for anywhere between $1200 and $2000.
For that price, it's cheaper just to go single.

Headwork.... hmm theres another idea...

[Rhys]

$400 were are you getting your prices from Paul i have seen them for about $15 in Japan + shipping.

Another problem you will have is, is the JZX90 an auto ?? If so FIT A TRANSMISSION COOLER ASAP. . .

But yeh as they have said the simple mods. Decent filter(i ran a K&N Panel Filter), shift kit from MV Automatics in SA, dumps, cooler, exhaust, tranny cooler, EBC and SAFC II, all this and you should be seeing 12's rather easily . .

[Brockas]

Last one I saw on E-bay went for $420aus.
If you can get me an ITC for around $100 I will give you another $50 spotters fee.

[Nemi]

we can but we won't

[Rhys]

Also regarding the exhaust wheels falling off, yes mine did break off running 1bar, but the previous owner had been smashing 22psi thru them for about 18months, so i wouldnt be compliaing, just the person that has to change them will be . .

[TJ]

Ive got spare head to test the port and polish theories.

A few of us believe there is good power to be made here ...

[Brockas]

Rhys do you have dumps? I know I bought the ones Glen had before he sold the MarkII to you, and I think a lot of the damage done to those turbos would have been from smashing bulk boost through the standard Y-piece before you got the car.

As for the head porting, I'm not sure if it will be worth the labour. I'd love to be able to compare it to the head off a 2JZ-GE as apparently it has the best flow out of all the JZ range.
On that note, I'd also like to see how well a 1JZ-GE (yes they do exist) head flows.

[Rhys]

The car has dumps now yes, but i dont think that glen did while he was running all that boost. I looked into porting the head on my 4AGZE and the place said it wouldnt be worth the effort or the funds, yes i know its not a 1j head but they are both designed YAMAHA so im guessing the flow on them would be reather decent

[Nemi]

look you can say they but if its not a steel wheel its fuken ****.
Those ball bearing turbo's have the magic melt away glue as 100k's as well don't they ?

[Brockas]

What crack are you smoking Damo? That made no sense.

My car recently got to 150,000kms, driven hard on higher boost, turbos are fine and not blowing any white smoke that I'm aware of.

All depends on how you treat them.

[TJ]

The heads definitely have room to move, as ive seen one off a engine, they are really really small...

[Bogrolls]

how much more than 300rwhp do you want, 300 is pretty good, moreso if it wasnt in such a heavy ****box best to be in a chaser or similar, those 1jz IS200's moved hard with 240hp 13.0 i think, raced that back from the drags a few times one night and it was close all the way up to 230k's which is a pissoff when you have 60hp more let me tell ya

anything beyond 300 and your looking at $ spent for not much gains
ross's makes 400 on 20psi with single turbo and ecu,

least motors are cheap if ur willing to wait,

[Damstrait]

yeh ok I was prolly drunk an thought I heard 300rwkw insted of 300rwhp :lol:
As for how much power do I want well you can never have to much, but then I would be happy with 300rwhp for now, I supose it depends what power I can get for what price, A single turbo upgrade sounds promising, what would be the best typ of computer to run on it, iv heard a piggy back is good but i like the sound of somthing like a motec

(ONEJZX90) yeh dude, its an auto, ill look into a trans cooler for it.

[TJ]

Definitely do, since Rhys is killing boxes with 300 rwhp

[jzed ay]

look you can say they but if its not a steel wheel its fuken ****.
Those ball bearing turbo's have the magic melt away glue as 100k's as well don't they ?

my 1j is at 180k and making 215 rwhp on stock boost. No smoke.

[Brockas]

Unfortunately for us here in WA, the most popular computer to run a 1JZ auto on in the Eastern States is actually a Wolf 3D. I say unfortunately because nobody reliable will tune it here in WA.
However, its just as easy to piggy-back a PowerFC onto the standard computer, just remember that if you're staying auto, you need to keep the Auto ECU as it controls gear changes.
The cheapest option is actually the GReddy Emanage, which I purchased before my S-AFC, however after trying 2 of these units, neither worked.

Best bang for buck - S-AFC.

[TJ]

Are you sure I can use power fc Paul?

If so ill place my order next week.

[Brockas]

TJ, check that AP engineering make one for the 1JZ.
Just thinking, you don't have any of the issues that I do while trying to use a PFC (ie. Auto and Digital Dash).
I've seen a couple of JZZ30's running PFC's in the Eastern States, but I'm pretty sure they came from Japan with the ecu already in there, so not sure where you can get them here.

You can use one as a piggy back (wire it into the standard computer) as thats the other option Ant gave me before buying my S-AFC. Yours being manual, I don't think you have to worry about keeping the standard ECU.

[SimonR32]

i told months ago you will be able to find a power fc that will work with ur car tj...

[Joe]

Bah, just get a Motec :D

You'd be surprised how cheap a 2nd hand Motec M48 actually is, and it'll wire in to any car...just make sure you get someone who knows how to wire it up ;)

[SimonR32]

MoTeC tuning price also factors into equation joe :)

[TJ]

Im still running an auto ecu though guys....

[McKVNT]

A bit off topic - out of curiosity I was reading a bit about fitting a power fc to an auto skyline, apparently its a no go cos the power fc doesn't know when to cut/retard ignition timing for gear changes, this is only with the nissans tho - apparently power fc's are fine to use with toyota auto's... just wondering if anyone knew why that was - I seem to recall reading that the programming for the gearbox's are vastly different or something..

[Brockas]

']Im still running an auto ecu though guys....
Yeah, ditch it, run a PFC stand-alone.

[SimonR32]

A bit off topic - out of curiosity I was reading a bit about fitting a power fc to an auto skyline, apparently its a no go cos the power fc doesn't know when to cut/retard ignition timing for gear changes, this is only with the nissans tho - apparently power fc's are fine to use with toyota auto's... just wondering if anyone knew why that was - I seem to recall reading that the programming for the gearbox's are vastly different or something..

as far as i know, they dont work with toyota autos...

people have been known to get power fc's to work with nissan autos, some guys over east but i think it would just be a better idea to convert to a manual

[McKVNT]

Oh ok then, I guess it would make sense that it doesn't work that well for any of them - I can't imagine one manufacturer having a vastly different automatic setup to another, I realised they'd be different but not worlds apart.

Yeh, it would be less hassles anyway just to convert it.

[Brockas]

as far as i know, they dont work with toyota autos...
Yeah but you don't know **** about Toyota's.

AP Engineering make a PowerFC for the auto JZX100 Chaser, I think Jash has one in [JZ].

[SimonR32]

this is true, but they only made it for jzx100 in auto

which we are not talking about :)

[Brockas]

as far as i know, they dont work with toyota autos...
^^^

Just say "yeah ok, I was wrong"

hahaha

[Damstrait]

haha settle down :lol: , thanks all for the good feed back but, really appreciate it,

(ONEJZX90) so you brought that dark green JZX90 with the orange rocker cover of glen the dude that was doin up a 180?? sik car, he took me for a spin when i was looking for my car, that shift kit was nuts.

what oils do you put in it?? my cars due soon an dont really have any info on what oil, brake fluid, trans fluid ect to use

[Rhys]

Yeh bought it of glen and nic. The new box is even worse :P. Um watever is cheap atm , hahahah specially till i fix the oil leaks

[ELUSIV]

this is true, but they only made it for jzx100 in auto

which we are not talking about :)

actually they made it for the manual JZX100's, if u were to buy 1 from greeline for example you will most likely get the manual 1, the auto versions were reverse engineered by AP engineering as someone mentioned before, so you can get powerfc's for both manual and auto jzx100's :)

[Mofo]

Who tunes pfc's in Perth?

[TJ]

Xspeed

Hyperdrive

Speedworks

etc etc

[Mofo]

Who comes recommended? ...Each workshop has a impressive arsenal of cars tuned via pfc.

[Nickevox]

they all come recommended thats why they got named

[RGVFAST]

big turbo
big boost
and lots of fuel all u need to make 400hp+


ROSs
________
ford excursion specifications (http://www.ford-wiki.com/wiki/Ford_Excursion)

[Damstrait]

I like the looks of the big single turbo upgrade, sounds like the way to go at the moment,
Dose anyone one know what the 1J runs stok boost, mines at 12psi, I thought that was high-ish but that seems common for intercooled engins.

[Nemi]

7 or 8 psi is usually stock boost.

[Damstrait]

Thats what I thought at first because most of the nissans run stock at 7psi, But iv been hearing its common for engins that come with stock itercoolers such as the 1J to run up around 12psi, it makes sence. where as far as I know most of the nissans arnt cooled stock. I know for sure that some Subarus run around 12psi stock.

[RGVFAST]

yer stock is like 7ish
but once u mod the intake or exhuast
it can go up to 14+ just by being alowed to breathe

if u have an aftermarket exhuast that would explain it

ROSs
________
om612 engine (http://www.mercedes-wiki.com/wiki/Mercedes-Benz_OM612_engine)

[Damstrait]

ahh yeh its got a 3" exaust and a pod but I woulda thought the waste gates would kick in and hold it down to stock boost. isnt that what they are for?

[Nemi]

not if they were setup to rely on the restriction.
fuk they must breath badly if thats the case.

[nice j]

ive only got safc and zorst and stock i run 10pound on the dot.

[Mofo]

yeah stock they are 8 pound, but with a zorst and pod it jumps to 12.

the reason the boost is jumping in the first place is because the wastegate cannot flow (control) enough exhaust gas, its a downhill process untill you upgrade the wastegate/turbo ...adding dumps and cooler is only gonna make it jump up further.

[Brockas]

Its quite dependant on whether or not you have a cat as well.

Me and rhys, same mods, same engine, but I have a cat. He's running 14-15psi with his boost controller off, I'm running 11-12 with my bleed valve working.

[Mofo]

my cat out it jumps to 14 psi. have to leave the cat in or i hit boost cut all the time.
ive got steel wheel turbos aswell which use the ct9 wheel and are a physically smaller exhaust wheel, which helps with boost controll. god knows what stupid boost mine would spike to if i had ceramics still in there cat or no cat.

[RGVFAST]

the money it takes to get ur car to 350hp on a 1jz is pretty much the same as it would take to make 500 hp
so u might aswell go big
________
mercedes-benz om352 engine specifications (http://www.mercedes-wiki.com/wiki/Mercedes-Benz_OM352_engine)

[Miami]

the money it takes to get ur car to 350hp on a 1jz is pretty much the same as it would take to make 500 hp
so u might aswell go big

agreed - but if you were gonna go for decent power via the big single route, then imo you need to go manual as well, as the auto box then becomes the weakest link in the chain, and also the non-lsd. going one without the other (big single & manual) is kinda defeating the purpose if you ask me. and manualising opens up the ecu choices completely.

tj - if you're going/already are manual, it should run fine on the auto ecu, and power fc should not have any issues even with the auto ecu. least thats the advice ive been given.

[Brockas]

Yes Shane it will work with the Auto ECU in place, but as a piggyback unit.

What he has to check is if it will work as a stand-alone unit, as we don't know if the looms etc are the same as the Soarer.

[TJ]

Whats a cat?

[Mofo]

that restrictive thing i have in there to soak up all the smoke from the fuct turbo seals. good times.