New Garrett Gt3540 Internal Gate Is Here + Dyno Results

[dangerman4]

I have got my hands on the latest release from garrett.

i need a 25mm spacer between the turbo and the manifold,

and i need to fabricate a dump pipe but apart from that everything i had for the gt30 will plumb straight

in. I picked the .82 a/r so i will be very interesting to see the results.

here's a couple of pics. looks good

Edited September 22, 2006 by dangerman4

[Craved]

are you using the std manifold?

how are you getting around the extra 25mm of stud length required to make it through the spacer?

[r33_racer]

Id imagine by changing the studs, or cant the std ones come out of the casting?

Probably be an aftermarket one if not.

[R33PWR]

Hope it goes well I lost patience waiting for them to do this( Garrett ) anyways be interesting to see how it goes, keep us posted...

[dangerman4]

stainless low mount manifold..

im using 4 50 x 8mm studs and it all slides on nice.

[MKDR33]

u have room to fit a 3540 on a low mount?

[nathmacca]

how much $

[r33_racer]

8mm studs....too small. Id use a minimum of 10mm. Hope they dont break on you later on down the track.

[dangerman4]

sorry

i just checked and my bad.

8mm is the dump flange bolts.

the t3 base bolts are 10mm.

and yes once it is spaced away from the manifold there is heaps of room.

i will start taking some progress pics when i get home from work.

[Dale FZ1]

Is this the internally gated T3 housing that Garrett have been promising all year, and part of last?

What is the used unit beside it? It appears to have a Garrett logo on the compressor housing too.

And most importantly, can you post up the CHRA ID tag number too please?

I'm going to be interested in the progress pics.

cheers

[Cubes]

Awesome news!!!!

Out of curiosity....

Do they have a .63 internal gate gt3540?

[PHaT MR30]

how big is the wastegate flap and do you think it will be big enough?

[discopotato03]

Is this the internally gated T3 housing that Garrett have been promising all year, and part of last?

What is the used unit beside it? It appears to have a Garrett logo on the compressor housing too.

And most importantly, can you post up the CHRA ID tag number too please?

I'm going to be interested in the progress pics.

cheers

Yes very interesting , hope they are available in quantity !

Dale the CHRA number would be the same for any cartridge with the same comp/turbine so its the complete assembly or unit number you want . Something worth noting is the part number stamped on the side of the exhaust housings mounting flange in the second shot . This would almost certainly be the turbine housings part number .

What I want to know is can these housings be grafted onto the GT37R cartridges because they have the potential to be better than the GT3540R cartridge for the larger/est RB - just need a suitable exhaust housing .

Cheers A .

Edited September 13, 2006 by discopotato03

[INASNT]

how big is the wastegate flap and do you think it will be big enough?

The main problem with big internal gated turbos especially when you start pumping in over 1 bar boost through them.

[Busky2k]

Are Garrett bring out internal gates of any GT30 series turbos??

[dangerman4]

in order...

yes

yes

yes

dont know

no

yes

[drag-on silvia]

hmmm very interesting, ive just had a .63 (ie nissan factory housing) grafted onto a gt3037 and it is due to arrive just after jamboree so should be interesting to see how it goes in comparison to these

[dangerman4]

pics

im off to my friendly stainless mandrel bend supplier..

need more bits..

back in a bit

[discopotato03]

Awesome news!!!!

Out of curiosity....

Do they have a .63 internal gate gt3540?

Hi all , I got to look at a couple of these this afternoon - yep .63 and .82AR ratio .

The Garrett part numbers for the housings themselves (according to the packaging) is 771300-5 for the .82 and 771300-6 for the .63 .

The waste gate flat valve looks to be the same size as the IW GT28 housings and there is room for a larger disc as well . Doing a "high flow" on this valve is common practise on souped up XR6T's so no reason why these could not be modified the same way . BUT - always that but - the greater the area of the disc the more area exhaust manifold gasses under pressure have to work on to try and force it open . I kid you not and don't laugh , I've seen people using what looked like old bed springs trying to keep this valve shut .

The rule is if you run high boost pressure do everything you can to have the exhaust manifold pressure down somewhere near inlet manifold pressure . You don't need massive exhaust manifold pressure to drive the turbine just sufficient gas velocity by thermal expansion .

Back to those housings , Brett at GCG has I think five of each AR size ATM so be quick if you need one soon . Had I been better organised I would have had some pics but no doubt they'll turn up .

Cheers Adrian .

[Cubes]

lol.. good news Disco..

Didn't take you long. I bet you almost instantly jumped in the car and drove to have a look.

Didn't catch what one would be looking at to grab an internal gate housing?