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No, its the Garrett version, I cant see paying near double the price for 100-200rpm worth while, rather spend that money in more usefull places.

I think the biggest thing with a T04z is if you want it to run nice on the street is to use a well design twin scroll manifold and use a smaller A/R turbine, I find it far easier to drive because it rolls into boost much smoother than the GT35, top end responce on the track now is also night and day, I chopped off 2 seconds around our 1.20ish track swapping to the T04z, on the street you can feel it powering up at 3000rpm by 3500rpm its at 7psi and by 4000rpm its on fire, suits my driving style perfectly.

  • 2 weeks later...

hi all,

Car is back on stands, engine and driveline are out.

Have to go to Bunnings to get 1 engine stand bolt!! (seem to have lost one)

Then it will be getting stripped down.

Surprising how easy it is to pull an engine out once you have done it a few times.

Car was up, engine and box was out in an hour lol Probably could have been quicker but i spent 10mins trying to get the circlip off the shifter with a set of long nose pliers :)

hi all,

Car is back on stands, engine and driveline are out.

Have to go to Bunnings to get 1 engine stand bolt!! (seem to have lost one)

Then it will be getting stripped down.

Surprising how easy it is to pull an engine out once you have done it a few times.

Car was up, engine and box was out in an hour lol Probably could have been quicker but i spent 10mins trying to get the circlip off the shifter with a set of long nose pliers :)

Good fun those circlips got to love em lol

  • 2 weeks later...

OK just an update.

Rather than fix the damaged head (which looks like it would cost alot to weld up and grind) i purchased a whole RB25DET long engine and will be using the head off that.

But everything in that head will be replaced ie: Valves,Guides,Seat,Valve seals the lot. So it will be a brand spanking new head when its all finished :)

I also bought new pistons (Mahle) and i cant believe the quality of these things! ( :( Steve-o )

Ultra light, Teflon skirts, carbon rings very nice indeed.

And i have sold the Poncams and replaced them with HKS items in256 8.8mm ex264 9.0mm Just so i can squeeze a little more out of my setup.

Things have been rather busy so the bottom end is still not stripped down. Hopefully next weekend we will get cracking, we now have 2 engines to strip :)

Where is the best place to get Mahle pistons for a Rb26/30? My engine builder wants to use CP but I'm keen to check Mahle out.

Matt

you'll be extremely lucky if you can find a set in the country. best bet would be to source them from the states

Where is the best place to get Mahle pistons for a Rb26/30? My engine builder wants to use CP but I'm keen to check Mahle out.

Matt

i bought my set from http://www.importperformanceparts.net/

tho they are bit more expensive with the current exchange. tho fairly cheap still.

they dont list a price, but trust me when i say its the cheapest i could find!

Edited by Angus Smart
Where is the best place to get Mahle pistons for a Rb26/30? My engine builder wants to use CP but I'm keen to check Mahle out.

Matt

Hioctane check them out where i purchased mine. Also mahles arent & easy piston to fit they require a lot more mods to fit as they hit oil squirters have to be spaced to fit properly. they arent like your cps or arias that go straight in & theres something else as well cant remember but overall once there in there nice. They are prob one of the best piston around.

Hioctane check them out where i purchased mine. Also mahles arent & easy piston to fit they require a lot more mods to fit as they hit oil squirters have to be spaced to fit properly. they arent like your cps or arias that go straight in & theres something else as well cant remember but overall once there in there nice. They are prob one of the best piston around.

You sure thats the way with rb26?? i recall something about sr20 needing to be notched. but the rb26 were ok.?

You sure thats the way with rb26?? i recall something about sr20 needing to be notched. but the rb26 were ok.?

Yeah im sure about the 26s have somethings that have to be adjusted to fit the mahles. Ill ask andrew who built my engine & let ya know. something about skirts hitting somewhere & something else. But like i said ill ask him & let you guys know

Hioctane check them out where i purchased mine. Also mahles arent & easy piston to fit they require a lot more mods to fit as they hit oil squirters have to be spaced to fit properly. they arent like your cps or arias that go straight in & theres something else as well cant remember but overall once there in there nice. They are prob one of the best piston around.

That's ok, my Rb30 doesn't have oil squirters. Are the rings ok if you can get them in without breaking them?

Hioctane check them out where i purchased mine. Also mahles arent & easy piston to fit they require a lot more mods to fit as they hit oil squirters have to be spaced to fit properly. they arent like your cps or arias that go straight in & theres something else as well cant remember but overall once there in there nice. They are prob one of the best piston around.

Note to self at work

www.hioctane.com is a porn site

www.hioctaneracing.com.au is the one I want

lol

Edited by BoostdR
You sure thats the way with rb26?? i recall something about sr20 needing to be notched. but the rb26 were ok.?

I would think very carefully about that. RB26s also have oil squirters... if their RNN14 pistons foul the squirters there's a good chance they don't clear the 26 ones either. i would check it very carefully. :P

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