over 14psi on oem turbo ?

[180sx]

I use rb20det turbocharger on my ka24et and i was told 14psi is max or ceramic wheel will flyoff. The other day i goy my new t3 so i was abusing the ceramic bastard i was hitting 18psi all night , the wheel is still there. wtf? maybe 20psi will do tonight....or does 3" dp make it indestructable?

[lucky7]

i run 15psi on my 25 turbo. i kinda think the turbo exploding thing is a myth. on occasion, my boost will spike to 20psi.

[RB20DETodd]

i ran 14 for 6 months on my 25 turbo no problems but depends on the condition of the turbo and beyond 14 it just makes noise

[redtop91]

FSMs for the ceramic RB turbos says not to exceed 1.1 Bar which is just about 16 psi.

[Joe]

i run 15psi on my 25 turbo. i kinda think the turbo exploding thing is a myth. on occasion, my boost will spike to 20psi.

hahaha till it explodes

ive seen them go, on several cars.

it is not a myth, its just a crap shoot as to how long its gonna last.

there is NO point boosting more than 13-14 psi anyway. at that point its just heating the air. its totally not efficient at those pressures.

[themadscientist]

I was riding in a buddies RB20 when the turbo sploded. It was cool, you should try it for fun. .9 sustained is as high as I go on RB OE turbos, past that it's just more heat and little or no more power anyway.

[lucky7]

hahaha till it explodes

ive seen them go, on several cars.

it is not a myth, its just a crap shoot as to how long its gonna last.

there is NO point boosting more than 13-14 psi anyway. at that point its just heating the air. its totally not efficient at those pressures.

honestly, i couldnt care less. when it goes, im slapping a GT35R on the ***** and shooting for 475 at the wheels. then i will commence with the corvette hunting.

[themadscientist]

You will have trouble hunting vettes if when that turbo pops the back wheel the compressor wheel crashes into the housing and sends chunks of aluminum through your engine.

[RB20DETodd]

honestly, i couldnt care less. when it goes, im slapping a GT35R on the ***** and shooting for 475 at the wheels. then i will commence with the corvette hunting.

just take it back to the shop and have them pimp your car with that setup before you blow more than your turbo

[blurrbosi]

You will have trouble hunting vettes if when that turbo pops the back wheel the compressor wheel crashes into the housing and sends chunks of aluminum through your engine.

+1

BTW: You should already be murking vettes!

[lucky7]

just take it back to the shop and have them pimp your car with that setup before you blow more than your turbo

my car has a very safe tune. AFR dips into the low 11:1 range when i go WOT. its tuned via EMS.

You will have trouble hunting vettes if when that turbo pops the back wheel the compressor wheel crashes into the housing and sends chunks of aluminum through your engine.

im really optimistic.

+1

BTW: You should already be murking vettes!

i think 90% of C6's in america, are in metro detroit. hoestly, there are 2 at every stop light. ive not had a go at even a C5 yet. but im fairly certain it would be close.

[Chaos the Xile]

hahaha till it explodes

ive seen them go, on several cars.

it is not a myth, its just a crap shoot as to how long its gonna last.

there is NO point boosting more than 13-14 psi anyway. at that point its just heating the air. its totally not efficient at those pressures.

Yeah search there are some threads that have pics of what can happen to those pumping out hi boost on those stock turbos.

[redtop91]

You will have trouble hunting vettes if when that turbo pops the back wheel the compressor wheel crashes into the housing and sends chunks of aluminum through your engine.

Intercoolers serve as a buffer to this kind of thing. Not a very reliable buffer. But one nonetheless.

[NightKids2]

Believe us when we say its not a myth =)

I ran 15 psi for a long time when I was having problems with my boost controller and it wouldn't hold boost.

After about a year or so of that I'm wondering why I've got oil in my intercooler piping...

And now I'm in the market for a new turbo lol

[meet07]

What hp are these turbo's good up to?? Is there a turbo with a similar housing??

[rbosacco]

What hp are these turbo's good up to?? Is there a turbo with a similar housing??

my rb25det makes 309hp and 326 lb ft of tq to the wheels at 14 psi all day on pump stock turbo blows anyway. getting ready to put my 35r on it so i can make more power and rev the car more....

[lucky7]

mine made 305hp and 315 torque at 15-ish psi.

[meet07]

isnt stock injectors maxed out right around 320ish or so???

what are stock 440 or 470's??

[DETurbine]

I really wouldn't recommend running the stock RB25 turbo past 10psi. Wheel is very week and on most cases will break loose and shatter spitting out your exhaust. It is your choice, but from experiance, I will tell you not to, unless you have the money and time to replace it.

[Coolwhip]

off topic....still waiting for the pictures of your current setup DETurbine been waiting

[cdorhout]

off topic....still waiting for the pictures of your current setup DETurbine been waiting

Yeah dude! I saw you in Omaha for the cruise but you were without a car. What's the status?

[Gold Digger]

isnt stock injectors maxed out right around 320ish or so???

what are stock 440 or 470's??

If you are talking RB25, they should be 370cc stock.

[meet07]

370??? wow thats depresing.

[jdmnancy]

there is NO point boosting more than 13-14 psi anyway. at that point its just heating the air. its totally not efficient at those pressures.

well the reason why they made a ceramic turbo, is cuz well everyone knows that the shaft is made out off ceramic, well ceramic doesn't transfer her like other metals do, so it wont heat up as much , but i'll say 15 will be good.

[Joe]

well the reason why they made a ceramic turbo, is cuz well everyone knows that the shaft is made out off ceramic, well ceramic doesn't transfer her like other metals do, so it wont heat up as much , but i'll say 15 will be good.

the shaft is steel, the exhaust wheel is ceramic.

[Abdo]

yea i wonder what kind of numbers I'll be pushing with the stock injectors/stock 25 turbo..I'll be boosting 10-12 psi for starters, and I'll go on from there.