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300hp Stock Turbo Can It Be Done?

sickr33

By sickr33,
in Engines & Forced Induction

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sickr33 Rising Star

sickr33

Posted
Posted

hi i am on a mission to break the 300hp mark with standard turbo

has it been done before?

i hear that some of you have 290hp but haven’t herd for 300hp

please leave any thoughts and or comments

and yes i have searched for hours

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https://www.sau.com.au/forums/topic/232494-300hp-stock-turbo-can-it-be-done/
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Al Grand Master

Al

Posted
Posted

If you have the money to replace the turbo, yes it can be done. The question is how long will it last? One dyno run, a few, a week, a month, a year, who knows?

I have heard of people running 16psi on std turbo, expecting it to blow, as they were ready to upgrade, then it lasted for years and made about 300hp.

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

It can be done.

Go to the dyno operator, tell him you wanna see 300rwhp.

He can play with some settings and *ta-da* you have 300rwhp.

Can you do it legitimately?

No. 290 is wrong also. Add to the fact you'd NEVER tell the different between 10rwhp anyway.

Stock turbo is good for a legitimate 190-200rwkw 12psi or so (260-270rwhp).

No one has ever run 110mph to backup the 220rwkw/300rwhp on a stock turbo to my knowldge anyway.

EDIT: Obviously with no2 and so on that changes the ball game, so does race fuel.

202.3rwkw Contributor

202.3rwkw

Posted
Posted (edited)

Hey mate.

I did make 220rwkw and it was still going over a year later. As nismoid has raised, I never did run it at the track but the 220 was very real. IE no tuner influence or funny air temps. It can be done, but just be aware that u are pushing the limit of turbo reliability.

good luck,

glenn

i have a dyno graph but it wont let me upload.........

Edited by 202.3rwkw
Al Grand Master

Al

Posted
Posted

Ash 12psi is the "safer" boost limit for a std turbo, but it doesn't mean that some std turbo's aren't able to run higher boost without exploding. It's a game of Russian roulette, as some turbos just come out stronger than others during manufacturing.

At 12psi i have seen these turbos make anywhere between 180-210rwkw. Push the turbo harder and you may make 220rwkw/300rwhp, but it fast runs out of it's efficiency range, hence why 4psi extra may only make an extra 10-15rwkw.

daxter Enthusiast

daxter

Posted
Posted

I know of someone who was making 220rwkw with the stock turbo, it ended up spinning apart and bits of metal went through the intercooler and into the engine, now he has to get a rebuild.

Make sure you get the turbo high-flowed. The ceramic parts are just to weak.

~R33AzzA~ Proficient

~R33AzzA~

Posted
Posted
I know of someone who was making 220rwkw with the stock turbo, it ended up spinning apart and bits of metal went through the intercooler and into the engine, now he has to get a rebuild.

Make sure you get the turbo high-flowed. The ceramic parts are just to weak.

How did it get in the engine?? The ceramic wheel is in exhaust side of the turbo. Hence you would find the broken parts in the cat.

daxter Enthusiast

daxter

Posted
Posted
How did it get in the engine?? The ceramic wheel is in exhaust side of the turbo. Hence you would find the broken parts in the cat.

I'm not exactly sure how it would work, but when his turbo blew bits of it got sucked though and into the engine.

Richieb Collaborator

Richieb

Posted
Posted

Guessing(using my head too..!) here, ....

.....but as the turbine disintegrates, this will cause a sudden huge loss of forced air volume on the compressor side toward the inlet, the engine will pull anything in(as avacuum state exists in cylinder/s), .. from ANY side, inlet or exhaust, and given there is valve overlap, and late closing exhuast valves in the equation, this would leave the door to take in 'nasty bits', wide open.

It has got to be something like this i guess. I have yet to have it logically explained, ...so this is my 'stab' at it.

TBH.. just a small amount in the cylinder/s will make things get expensive too.

I suppose logically it should spit it out the 'zorst, but historically this is not the case.

You hear the tales about it, and the result products,.. but yeeeeap, someone correct me if am wrong... enlighten me..!

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