ideas on building my 1jz on a single

[1jzFreak]

i got some questions
first off i want to run a single turbo on my soarer 1jz thats in my mk3 supra
and ive been looking at the driftmotion set up such as the 57 trim and 60 and i was wondering if which to go with if i have a goal of around 400hp and what size .ar is best and is there a better setup for my goals'
second what size injectors would be good and who makes a good fuel pressure regulator
third what woulfd i need to tun it, arc, boost controller, etc
i could use some advice on this guy so feed back would be awsome, i plan on running this on stock internals for now just too get the set up good and then plan on buying a whole nother engine to rebuild
about how much bosst would i have to run, what would 20psi produce?

 

[Beals]

i rebuilt my stock twins and went with jdm mk4 440's but the disadvantage to rebuilding a stock turbo even with new internals is it still doesnt flow as good as a brand new turbo and for the effort you mise well go all in. If I were to do it again I'd prolly go single instead of twins and get gt35r or something similar and 550's with a new fuel rail. Your gunna need a boost controller to turn the boost up, electronic BC prevent boost creep. But theres a lot to do if you decide to go this route, I did all that plus a new intercooler and now I need a new fuel pump a wideband and fuel pressure regulator to make sure I'm not running lean/rich. Plus I had an aftermarket ecu (rare JDM one, I got lucky) your gunna need a piggyback atleast for new injectors but a stand-alone is the way to go, a tune creates more power and better power curves as well. Not to mention fuel consumption can be better. and I'm running 12lbs of boost but my goal is between 16-18 once I get the new parts I want and a dyno to see how hard I'm pushing it. Oh and I have an upgraded clutch you'll need this once you hit over 350rwhp, which at 20lbs of boost your gunna be looking at 500, this is a lil more then "mild" I'd be looking more at like 12-16.

edit: oh and rebuilding an engine isn't a good idea until you have experience especially if you don't know what your doing and you pay a shop to bc they can take advantage of you, take your money and not get the job done right and in the end your stock motor would of been as well off as your "built" motor.

 

[hvyman]

Smaller a/r will spool faster but will have less top end. Bigger a/r the opposite. .68 undivided spools good on a 1j. .81-.84 divided spools good as well with great top end.

Can use mk4 550 and wire in the resistor pack or get a top feed fuel rail and use any sort of 550 import injector.

Tuning can be done with a afc or boost controller tho a standalone ems would be the best choice.

Cams always help.

 

[yhatzee89]

Would running a 2JZ-GTE ECU eliminate the need for a fuel computer? And all you need is the jumper harness

 

[hvyman]

No it would not. It's still a super rich stock tune.

And yes a jumper harness is all you need to use one with a 1jz harness.

 

[Radial]

Go EMS if aiming for any advantage with your single-setup.
On stock ecu the tune is too rich to give the single any advantage, and you will hit the fuelcut-wall once you start boosting the single at its optimal boost-range (Many singles likes +16psi before beeing efficient.)
If going single with stock ecu, just to not having a turbo-failure without further plans, i'd go as small as you "can"really...preferably the T3 platform, but a very small t4 like the smalest from DM will do.

Regarding fuelinjectors you can use 440's....just jump the fuelpressure from 2.8 to ~4bars. Its not ideal, but its a cheap way to squeeze more out of your injectors. The limit is your fuelpump, that will have a heavy workload at higher pressures.
the 440's will flow just above 500cc at 4bar pressure (i have actually measured mine to 510-515cc/min @4 bars).

 

[MNBmk3T]

Definitely ditch the stock ECU for a single turbo setup. It's nice to be able to control everything on your engine to make the optimum amount of power at whatever boost level.

 

[1jzFreak]

does anyone else make a stanalone for the soarer harness besides drift motion, and im doing this all my self im a certified mechanic im just trying to figure out the best set up if i wanna run a single and get a lil over 400

would a drift motion 60-1 turbo be good to use if i wanted to turne for a lil over 400 but squeeze more later

 

[Beals]

like everyone here said stay away from the ct26 rebuilds, it's old technology you want a ball-bearing turbo, i don't have a ball bearing turbo and you can tell, the only reasons my turbos spool fast is bc their so small, but their not as reliable in the long run either. I would ditch your c12a's for a gt35 or a t3/t4 like said above. and if you got a stand-alone and you know someone to tune and can do this work yourself it shouldn't be a problem doing any of this. or needing a "bolt-on" kit.

 

[1jzFreak]

i was looking at a kit from dm because they come with a majority of what i would need for a good price,i was looking in to a ball bearing turbo from dm but all the sudden they dont have that as a option for their turbos