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

    • I hadn't thought about the variable power steering assist. Presumably, it will always be the same level of assist as you get in an S14. The R32/3/4 are either helliishly heavy (at low speeds) if the solenoid is not powered at all, or hellishly too light (at high speed) if it is powered all the time. I presume that it is PWM controlled on those cars. I hadn't thought about the S cars not having variable assist. ugh. What crappy plebby cars they must be!  
    • Hmm yeah that is a good point. It looks like it'll just bolt in with no real issue besides maybe the bushings being different. My other concern was that 2 pin plug that I assume is used in some way to control the rack solenoid depending on the speed signal from the ecu. The DMAX rack doesn't even have that plug though so, don't think it'll matter. Might just order the rack and see how it goes. Will update this when I figure something out
    • I'd say it's a fair bet that the feed and return fluid lines will be in different enough spots that you would need to come up with a way to cut the originals short and adapt with new hard line adaption or braided teflon hoses or somesuch. But really, you have the car, you have the photos of the DMAX rack - you should be able to go out there and see for yourself whether they're in the same or different spots.
    • I've been doing some looking around and honestly was just considering throwing a new rack at it. I saw that the dmax silvia rack bolts up into the 33 with the silvia bushings but not sure if the high pressure lines will sit in the correct spot. I believe other version of the 33 rack are the same/similar to the racks that can be opened up without as much fuss so I assume the dmax rack would fit but any ideas?
    • I've never played with one, but I would expect that you are correct. That slot looks like it is intended to be used to unscrew the end, and the flats on the body would be better than grabbing it around the round bit with a pipe wrench. So, yeah, probably unscrews. You'll probably have to make a tool to drive in that slot.
×
×
  • Create New...