Jump to content
SAU Community

Recommended Posts

A while back Garret changed the naming of there turbo's to add the rear housing size into it.

My turbo is actually a GT3540r but if you were to buy one now its a GT3582r because its got a .82 rear housing on it.

Same turbo's just different rear housings so check which rear housing it has on it. the gt3540r may even have a 1.06 rear instead of a .82 so then its not a GT3582r equivalant.

if you get what i mean

Whats the difference between the Garret's GT3582R and GT3540R?

I've been looking up Garret's website and far as i can tell, they have info for GT3582R but nothing on GT3540R..

I'm not going to debate that one but from all my sources .

Garrett was having trouble with turbocharger identification because their previous handle GT3540R tells you turbine series "GT35" with compressor series "GT40" or just 40 . "R" means rolling element or ball bearings .

Where this system falls down is there may be several different major or outside diametre types of GT40 compressor which there is - 82mm and 88mm . So they changed their naming system to turbine series "GT35" and compressor outside diametre (OD) in mm ie "82" and the "R" stayed the same . So GT3582R is the current name for that turbocharger . They can and have been called GT35R/GT3540R/GT3582R , all same thing .

The system is still flawed because you can have different famillies of compressor in the same or very similar OD , this is how people confuse the real GT3076R turbos with the hateful GT30/TO4S turbos . Their compressor wheels are within 0.1mm and the trim size numbers the same . Buyers MUST find the part numbers for the turbos they want and not get "substitutions" because seemingly minor differences are not trivial . Search turbobygarrett site for the unit and cartridge (CHRA) pt no's , don't have time to find them ATM .

Cheers A .

I'm not going to debate that one but from all my sources .

Garrett was having trouble with turbocharger identification because their previous handle GT3540R tells you turbine series "GT35" with compressor series "GT40" or just 40 . "R" means rolling element or ball bearings .

Where this system falls down is there may be several different major or outside diametre types of GT40 compressor which there is - 82mm and 88mm . So they changed their naming system to turbine series "GT35" and compressor outside diametre (OD) in mm ie "82" and the "R" stayed the same . So GT3582R is the current name for that turbocharger . They can and have been called GT35R/GT3540R/GT3582R , all same thing .

The system is still flawed because you can have different famillies of compressor in the same or very similar OD , this is how people confuse the real GT3076R turbos with the hateful GT30/TO4S turbos . Their compressor wheels are within 0.1mm and the trim size numbers the same . Buyers MUST find the part numbers for the turbos they want and not get "substitutions" because seemingly minor differences are not trivial . Search turbobygarrett site for the unit and cartridge (CHRA) pt no's , don't have time to find them ATM .

Cheers A .

I recently bought a GT3076R (a few weeks ago) and they have a GT3037R badge on them, so even though you order under the new system it still may be badge as per the old system.

Edited by AWD2Go

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Latest Posts

    • What can't be done with a little bit of decking board or similar timber bolted to a hub flange via 2 wheel nuts is not worth talking about.
    • I noticed something. On the tps sensor and the sensor behind the adjustment screw is adjusted towards the far left. Are these screws supposed to be centered? (this sensor was in the same position before the tune as well)  Also attached a photo of where my car usually idles at when warm (sometimes a tiny bit above that). I think I might have screwed up the calculation and it might have better than I thought lol at 750rpm still not 650rpm though.      
    • So for both general interest of engine health, and to rule out any coolant/oil issues, I organised an oil analysis done on the 125,000klm oil Results below, all good, just a bit of fuel dilution which I'm not too worried about
    • This is actually a really good way of measuring what wheels fit. If only there was a similar measurement between hub face and suspension :p That said, it's probably pretty simple to actually measure it all with the wheel off the car for the rear. The front is a bit more complex but.. 
    • Being the top Google search result for R34 wheel-related inquiries, lemme throw down my experience. I calculated that 100mm from hub face to wheel face is about the perfect fitment for my ENR34 sedan.  I've been running 18x8.5s, ET35, with a 1" spacer. So, 8.5in to mm = 216mm. 216/2 = 108mm. 108-35 = 73mm. 73+ 25 (1" to mm) = 98mm.  If you wanna get close to this on dif widths, here are the offsets you'll want: 9" - ET around 15mm 9.5" - ET around 20mm 10" - you're crazy, but ET around 30mm All these should fit perfectly on a non-widebody, non-GTR Skyline. Note that it's probably the absolute max, and you're probably better off running a couple degrees of camber in this config, but it looks great, super flush.
×
×
  • Create New...