Psi before my bottem end blows? And JDM motors?

[Failure14]

Ok so i just bought a garret t3/t4 hybrid turbo and i was woundering
how much psi will i beable to push before my bottem end blows or
gives out? I was thinking 12? Its got 150k on the motor.

Also whats the whole thing about buying a jdm motor?
Like if you already got a 7mgte why buy a jdm 7mgte?

 

[tbcmorris]

look in the articles section if you still are confused come back....this as been covered Alot

 

[oldsking]

all depends on your tune... Honestly with that many miles your best bet is to at least go over the HG and switch to arp head studs. I presume you currently have a gte?

JDM motors are Japanese imported motors that you have to contend with usually not having EGR also the motors are ticking time bombs haha It's not the best thing to spend your money on and slap a big turbo. Better yet build a gte from scratch if you intend on putting big numbers down. Like I said at the top, it's all in your tune

 

[teamslow]

Ok so i just bought a garret t3/t4 hybrid turbo and i was woundering
how much psi will i beable to push before my bottem end blows or
gives out? I was thinking 12? Its got 150k on the motor.

Also whats the whole thing about buying a jdm motor?
Like if you already got a 7mgte why buy a jdm 7mgte?

Everything depends on the condition of the motor. If the motor is in perfect running condition. The bottom end should be able to hold up to 16-18 psi on 93octane with a good tune.

I run 16 psi on my stock bottom end and have seen it spike to 18 psi at times.
And my cars run perfectly fine.

JDM motors are easier to find when you are looking to buy an engine. They are also claimed to have low mileage.

 

[hvyman]

^they also have been known to come with bhg's and rod knock. you can find gte blocks easy. just ask a jz guy they prolly got one sitting around. post on the want to buy area and look in the for sale section.

if your on stock hg your motor is not going to last very long.

 

[Moy]

it's more worth it to take the money you would spend on the jdm motor and getting it up to spec (all new gaskets, etc) and put that toward building your current engine. JDM 7M-GTE probably at least 600... for that you could have a set of forged pistons. It would take at least another 400 for gaskets (doing it right, going to Toyota)... that's damn near a set of forged rods. So about $1000 for a Japanese engine that's been sitting around for forever (but with new gaskets), or go fast parts to make your current engine even better.

It's all about what you are looking to get out of your engine.

 

[Failure14]

Yea ive got a new HG ordered an oem style though =/ , still in the process of putting it on... But i do plan to go metal, just at the time i didnt have the money so just got me a quick oem for cheap.

ARP bolts are on the way as we speak, but yea i looked all around this site
for the whole faq jdm but never found it, but thanks anyways for telling me guys.

 

[GrimJack]

Folks, this is the TECH section. Quit posting guesses.

Failure14, this is important. This question CANNOT be answered accurately. There are too many variables to take into account. Everything from ambient air temp / pressure / humidity to engine condition, turbo size, fuel delivery capacity, virtually every modification done to the engine both internally and bolted on, and another 40 variables that I don't feel like typing out. Including the fact that PSI is an extremely bad gauge to measure engine life.

Therefore, anyone who answers you in PSI is flat out guessing. Anyone answering you without knowing most of the information above is likewise, flat out guessing, even if they put their answer in terms of rwhp.

The correct answer is, it depends. How to find out what your car will take is simple. Put it on a local dyno and pay for some tuning.