A Question For Those Of You Who Are Turbo

[soarer479]

does any one know what the stock psi of the supra tt and the peak boost you can push on the stock turbos??

thanks in advance for the help

[bean_8044]

I believe stock is around .8 bar, maybe a little more. Alot of people on the MKIV.com registry are posting boost levels around 22psi on the stock steel wheel turbos

[soarer479]

thanks bean. and one more question how many pounds would be safe to run on a completely stock engine except for intercooler and B.O.V

hehe im gettin anxious i just ordered my new 96 2jzgtte :D

[AWJ]

I'm sweatin' the specifics here - stock twins range from 10 to 12 at normal levels with max or 18 to 20 some's after tweaking waste gates. I believe the jdm motors run ceramic compressor wheels oem, wich will fail at high levels but allow quicker spool. A new 1996 motor? Wouldn't that be 8 years old? ;) Anyways, a stock gte motor can handle quite a bit of flow and pressure over what the stock turbo's put out. Think t7x and 25+. Are you doing your own install? I think it's safe to say 600 to the wheels on stock internals. Maybe some cams. Good luck.

[bean_8044]

Heres a page that lays out a few of the differences between the USM and JDM version of the 2JZ

http://www.mkiv.com/faq/japanese_and_export_1.htm

[AWJ]

Ceramic turbine wheels... there you have it. Ouch. One case where the exports were better.

[soarer479]

yah i ordered a jdm engine. the usdm was much more expensive and very hard to find the year i needed :( but either way im happy to be getting rid of my stock ge with over 200 k on it!!

[soarer479]

I'm sweatin' the specifics here - stock twins range from 10 to 12 at normal levels with max or 18 to 20 some's after tweaking waste gates. I believe the jdm motors run ceramic compressor wheels oem, wich will fail at high levels but allow quicker spool. A new 1996 motor? Wouldn't that be 8 years old? ;) Anyways, a stock gte motor can handle quite a bit of flow and pressure over what the stock turbo's put out. Think t7x and 25+. Are you doing your own install? I think it's safe to say 600 to the wheels on stock internals. Maybe some cams. Good luck.

i wont be doing my own work due to lack of time, resources and mostly experiance and knowledge. i made sure i will be deeply involed in the swap its self the guys at speed fab are nice enough to let me watch as much as i want and even help out a little

[jzz30]

since we are on the subject doesn any one know what is involved in importing an engine from japan. meaning shipping and customs/paperwork declaration?

[bean_8044]

Do you want it in one piece?

[god329]

there are people breaking the 1000 marker with stock bottom end but with stock turbo you normally max out just short of 500.

[soarer479]

well ill keep you guys updated on my swap i should be expecting the engine in a few weeks

[Lex Luthor]

Good luck with the swap, keep us updated.