I've seen that post again and I can only assume the gurus are a bit confused themselves .

Firstly the specs of the current GT4088R are 77mm 78 trim UHP turbine with 52 trim 88mm C117 compressor . I believe the first BB GT40R used a 77mm BCCW18C compressor (6/12 blade rather than 7/14) .

Secondly I can only find a bush/thrust plate bearing version of the GT4082 turbo with no mention anywhere elso of a Garrett ball bearing centre section . This is also the only application of the 73 trim GT40 UHP turbine I can find . Most GT40 77mm turbines appear to be 78 or 84 trim .

Thirdly its hard to imagine why anyone would assemble a GT4067R with a 73 trim turbine .

This is not designed to be an attack on the knowledge of those mentioned in that original string its just that I can't find the details of the specs posted . I would really like to hear about a GT4082R if it exists but if it does its burried under Fort Knox . Just on that GT4082 is anyone using it and what results can it give ?

Here in Aus we are contemplating fitting the 4082's compressor to a GT4088R cartridge . We reckon the 84 trim size that plagues many GT turbines is a diesel thing and while that may be OK for lower EGT and narrow rev range Diesels aroud 76-78T would work better with petrol engines . I don't think its any co-incidence that the GT28 BB series turbines span from 60 to 76T . Information is very scarce about the dedicated competition BB TR30R turbo and I suspect it uses a 60mm NS111 turbine in lord only knows what trim - my guess 76-78 .

Someone must have the answers .

All ears cheers A .

 

I corrected some info later in that thread sir just FYI. As far as I know no GT4082R is available, I corrected the trim and compressor wheel sizes for the GT4088R dual BB which is actually different than the GT4088 Journal bearing turbo. Also that GT4082 I have been told was really designed for Diesel applications sir. I have learned more about all of these turbos since I posted that thread, I am no end all to tell all Turbo Guru though BUT only posted info to help people understand better. Since that post new info was provided to me on Turbine trim also, there are different trims available for the turbine too That post needs to be updated and some corrections, feel free to post up

 

Boostfed do you know of anyone running a gt4082....or have a dyno print out of one...?

Thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DUB20VT &raquo;</TD></TR><TR><TD CLASS="quote">Boostfed do you know of anyone running a gt4082....or have a dyno print out of one...?

Thanks

</TD></TR></TABLE>
Sorry , no. Plenty of good ole GT4088Rs though

 

Thanks Boostfed , no offence intended just trying to sort it all out .

Cheers A .

 

If you look on rx7club.org (or whatever it is) one of their members was running a GT4082. They have a dyno and some information posted.

Tim

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by discopotato03 &raquo;</TD></TR><TR><TD CLASS="quote">Thanks Boostfed , no offence intended just trying to sort it all out .

Cheers A .</TD></TR></TABLE>

No offense taken, I know I SUCK!

 

So i see Bro....Just like when the SC61 hit the scene

Well do you know what numbers anyone has push with a GT4088 @ 35 psi...???

Thanks

 

Thanks bro.