10secdream;1204087 said:A Custom Twin Turbo kit would be the way to go. Then again why not just go single and have a more reliable and cheaper solution.
Which is the reason i went with a 62-1 .70 a/r .68 a/r..
10secdream;1204087 said:A Custom Twin Turbo kit would be the way to go. Then again why not just go single and have a more reliable and cheaper solution.
Gritz;1203981 said:Cool, are there any twins, that are a natural upgrade to the stock ones? New i might add..
SupraRacer;1204756 said:Wow alot of mis-information in this thread.
first of all if all you want is ~320whp just slap a full exhaust and intake on it, as most bpu 1j's will lay down between 300-310whp with just a full exhaust, i personally did 313whp with just those mods.
secondly, i ran 18psi with cams for 2.5 years with zero problems, the efficiency limit through the stock IC, is 23psi ,tuned on stock cams. THe stock IC is the largest OEM FMIC toyota has ever made, hell i made 395whp on 18psi, on stock fmic, ic pipes, 370ccinjectors, stock fuel pressure, with only cams, and a Sard ecu. when i removed the turbos to upgrade them they were/are in perfect condition, no shaft play, no smoking or leaking.
i do recommend that before you add a boost controller that you at the same time install a quality boost gauge, the stocker is a joke even at stock boost levels. Also if you are going to be pushing the turbos into 18+psi id also suggest an EGT and a/f gauges. AEM Uego is cheap and reliable, i use that. Never modify a turbo car without knowing exactly what the engine is doing otherwise you will detonate, or melt pistons, or blow turbos. you need to know how your doing on fuel, anything above 12.5 on a turbo car is dangerous, and anything prolonged above 12.0 is playing russian roulet, but on a stock ecu after you pass the stock fuel cut(~13.5psi) the ecu wont have a map for it and it will just throw fuel at it. which if you were like me is 9 and 10's air/fuel, very very safe. Its idiot proof, however if you tune it you can gather a bit more power.
guys have gotten 420whp out of the stock twins for years, and depending on the mileage and condition of your turbos will determine how much they can take as far as abuse.
:bsflag:SupraRacer;1204756 said:hell i made 395whp, 370ccinjectors, stock fuel
BlackMKIII;1202442 said:With a full 3" exhaust, if I take the silencer out I bang on fuel cut all damn day, even with the boost controller off. It's a farking pain in the arse. I installed a fuel cut defender and had it "tuned" for about 1.3 bar.
Well about 6 months later I melted the pistons. Never even heard it detonate. Even though my wideband showed a nice healthy mixture, the cylinders were too hot and I got to spend more money on another 1JZ.
The moral of the story? FCDs ARE BAD, MMMMMKKKAAAAAAAAYYYYYYY????
That is what i drive daily. But my aftermarket ecu died, and so it fuel cuts after 12 lbs now. But with a fuel computer 15 daily was safe for me. Make sure your a/f ratio is always safe. Get a wideband!ryangaudoin;1205901 said:and what is the max psi I can put down the turbo's for the safest running every day, basically for me running hard all day
is it 12-15 psi
Evilempire1.3JZ-GTE;1205526 said:Do not rune 395HP on 370 injectors thats beyond 100% duty cycle and running lean.
Steel blade upgrades for our supra is not the solution 12Bs add lag more then the 2JZ-GTE just go single if you cant take 330-340hp.
More boost then 14-15psi will hit fuel cut and no AFC can adjust an oem map sensor once it just pegs at 5vdc max psi you need a scalable 2bar map like GM to register your boost for your afc input.
Here you go:aphxero;1209805 said:Hey drewgo I wanna see your graph. I run the exact management setup you do and make 400whp@14psi and that's with 3.0l block!
Maybe I'm too conservative.
But seriously thread guy. Just get a stock motor and bpu it. BPU lol that term always makes me laugh. To me all that bpu crap is stuff you do to any car no matter what. Who'd ever run stock intake/exhaust/intercooler? "hard pipes" is a funny one too. I mean who the hell runs a stock intercooler/piping on anything? Supra people are the only ones ho use these terms so I LOL@them.
"Dude 1j BPU+ you'll get that 320whp" ROFL