Gtr N1 Turbos.

[Global_Warmer]

My car is goin in on monday to get a leaking exhaust manifold gasket replaced. So whilst all the intake plumbing is removed, I want to be able to see what turbos are bolted onto it. The previous owner told me it had GTR N1 turbos but how will I know?

I want to be able to tell exactely what turbos are on the car, because once this exhaust leak is fixed, I want to be able to put the car on a dyno and start throwing some more boost into it.

My question is: What do i look for on my turbos to define that they are N1's?

[R31Nismoid]

ID Tags on the turbo is the only true way.

Otherwise run it up onto the dyno. If it makes around 300rwkw on 18psi or so, then you dont have stock turbos

[Global_Warmer]

Okay. So it sounds as if it is not that easy to know just from a visual inspection. That's a shame as I wanted to know for sure if they are or not.

I suppose that the mob (probably Black Track up here near Newcastle) that'll do the dyno run and boost will have an idea what the engine is capable of once they are playing with it.

The list of mods the previous owner gave me so far are all true.

[NSNPWR]

Just do as Nismoid said, check the tags once its all apart...get a small manouevrable mirror and a torch and have a look...should not be that hard to get the numbers if its all in bits.

Once you have the numbers, you can usually confirm on the Garrett website exactly what they are.

[Global_Warmer]

OK. Car is now pulled apart. Still not enough removed to see any ID on the turbo apart from the word Garret.

The mechanics have stopped any work on it beacuse they have found:

1x crack in the exhaust manifold on cylinder no.2 from the froont of the car.

1x old wated leak in/on engine block below the 1st turbo from the front of the car.

And

there is oil on all pipe work on the intake side of the turbos.

Is the oil on the inside of the pie aceptable? Should I get the turbos reconditioned? Or just sell em as is and get new N1's or better?

Or is it time for a big single turbo setup!?

I want this car to be able to handle a days hard driving on the race track and then be driven home. I dont want to always be worried the car is about to shit itself.

Please any advice anyone can give is very much appreciated!

[R31Nismoid]

Oil - no problem. you aren't running a proper catch can setup im assuming.

Well you still dont know what turbos you have... So i wouldnt get too excited about that. They have to come off regardless.

So water leak = cracked block by the sound of it? If so, rebuild time or new motor.

[Global_Warmer]

Oil - no problem. you aren't running a proper catch can setup im assuming.

Well you still dont know what turbos you have... So i wouldnt get too excited about that. They have to come off regardless.

So water leak = cracked block by the sound of it? If so, rebuild time or new motor.

I bloody hope not!! Its leaked once before. There is a white coolant type of stain on the block. It certainly does not use ANY coolant even after beeing driven hard. NEVER been any pool of coolant under the car after driving. To tell ya the truth, its kind of hard to tell what the hell it is with the turbos in place.

Engine does have a catch can. I dont know much about them though...

[SiR_RB]

Do the turbos have an A/R size on compressor and exhaust side. Once they are off for new gaskets, send them to be checked properly

[NSNPWR]

Water leak could just be a Welch plug....

[GTScotT]

Yeah I definitely wouldnt assume cracked block off the bat...

You have given the impression theres a stain but it doesnt leak water.... So which one is it?

[Nee-san]

Lol, All these people cracking 26 blocks, what the f**k are people doing with them, excavator hammer throw ?

[Global_Warmer]

Yeah I definitely wouldnt assume cracked block off the bat...

You have given the impression theres a stain but it doesnt leak water.... So which one is it?

Its both!!!