T3 Compressor Swap .42 to .60
 

I have a garrett t3 .42\.48 that i bought on ebay remanufactured.
After much research i quickly realized that there is no way this
turbo is going to support power throughout the rpm range on my
gs-r with a b18c1. I have thought about selling the turbo and getting
another, but i think i will take too much of a loss that way.

My thought was to swap the compressor side to a .60.
I was trying to follow a few threads on here but they either
got hijacked half way through or never got to the point.

If i was to do this

1. What would be involved? Is it pretty much plug and play?
On one thread it said you have to machine some of the material from the .60.

2. Would the turbo have to be reballanced once it is complete?

3. Is this all i would need to complete this project?
Will the backing plate from the .42 fit the .60?


http://img482.imageshack.us/img482/8116/t31zh.jpg

Thanks Guys,
Chris

Re: T3 Compressor Swap .42 to .60
 

i would like to know also.

Re: T3 Compressor Swap .42 to .60
 

Yes, all you need is the T-Bird .60 comp housing given you have a Volvo turbo. Steve did his on a Volvo turbo as did I. He said it will wiggle on the center section and you can grind the lip on the center section (not the turbo) down a little to have it sit flush. Mine didn't need it. We had to do some grinding, cutting, mocking, bending, etc. because of the tight fit and the internal WG. Depends on your application, but really just plain easy. I have yet to get a retune to fully expierence the change, but I'll be sure to post results.



http://img105.imageshack.us/img105/3...gp0449s4qv.jpg


JP

Re: T3 Compressor Swap .42 to .60
 

Cool thanks samson.

My plan is to list the .42\.48 on ebay for what i paid for it, if it sells i will invest the money in a larger turbo.

If not, i will do the swap.

I wanted so much for this project to be as dependable as possible for a daily driven street car. Im just a little freaked out about swappin parts on the turbo.

Seems like i would be introducing a chance for something else to go wrong.

Re: T3 Compressor Swap .42 to .60
 

Check the for sale. I have a .60 Comp/BackPlate/Wheel for sale.

Re: T3 Compressor Swap .42 to .60
 

This is the parts list that I would use ^^^... and depending on turbo condition... rebuild it also... and have it all balanced... then you basically have a nice new turbo.

Re: T3 Compressor Swap .42 to .60
 

Thanks man! Ya Check it out, Mine is coming off a Re-built By Garret turbo. I'm going even bigger.

Re: T3 Compressor Swap .42 to .60
 

Hey Bumble, I have the turbo on ebay right now.
If it sells im just going with a larger turbo.

If not i will hit you up on that compressor housing.
Its 4 more days on the auction.
Are you sure that will bolt up to my garrett .42\.48?
Also, do i need your backplate? I was thinking of using mine.

Re: T3 Compressor Swap .42 to .60
 

you would use his backplate, wheel and housing.... then a rebalance and good to go (if your turbo is solid). Otherwise, toss a rebuild kit at it while you are in there.

Re: T3 Compressor Swap .42 to .60
 

Exhaust wheel has to be the same size for the exhaust housing.


Your welcome, but if it's a .42/.48 Steve and I dealt with all you need is the .60 housing.


JP

Re: T3 Compressor Swap .42 to .60
 

yeah you're gonna want the backing/wheel/housing...

Re: T3 Compressor Swap .42 to .60
 

Heh... i think for your second statement... you are just ignoring advice of others... I think you still had doubt recently too....
"I might be interested if it DOES really fit, but I don't think because what is the purpose without a bigger wheel to suck in more air, ya know?"

For the first part though... he uses his stock turbine wheel/turbine housing/chra and just uses all the parts from the 60 coldside...

I still don't agree with just the housing swap... it might help some... but not as much as the correct wheel will... I know you guys didn't agree with this in the thread all about it... but shrug. I'm running a full 60/63 t3 on my D16 and loving it... spooling by 2200 and full spool mid 3k. I have a t4 60trim housing for it also... WITH wheel and backplate... I'm not going to shoehorn it... i'll be using the correct wheel so it actually does what its supposed to.... fit.

Re: T3 Compressor Swap .42 to .60
 

A bigger housing will flow more CFM and a wheel will help. A housing without the wheel to match isn't as good, but it's your money. Steve has done this and so have I. I'm sure of it. I have yet to get a re-tune to report my results, but it fits.


JP