Current state of the game for single turbos

[Lithium]

4 minutes ago, R_34 said:

Here you go : G30-770.

 

Legend!  Where did you get that, if you don't mind me asking - feel free to PM.  I just want to be sure it's definitely the right map for the right turbo before I nail it down.

Also, looks like I estimated it's place in the list perfectly haha

Edited June 25, 2019 by Lithium

[R_34]

I got it from ATP when they were updating their site with the g30/35 to come.

I managed to save all the compressor and turbine map from their site for the g30 and g35 but the g30-660.

[Lithium]

1 minute ago, R_34 said:

I got it from ATP when they were updating their site with the g30/35 to come.

I managed to save all the compressor and turbine map from their site for the g30 and g35 but the g30-660.

Well played - any chance of the turbine maps? 

[R_34]

I'll post everything i managed to squeeze out from the ATP website in a few hours.

[Lithium]

2 minutes ago, R_34 said:

I'll post everything i managed to squeeze out from the ATP website in a few hours.

Much appreciated, sir - maybe throw it in the Garrett G-series thread if that's ok

[R_34]

Will do.

[Lithium]

22 hours ago, R_34 said:

Here you go : G30-770.

Cheers again for this, in my excitement I forgot to update the list... which is now looking quite healthy.  It fit quite nicely in the placeholder I had set aside for it

 

Edited June 26, 2019 by Lithium

[Dose Pipe Sutututu]

Man that G30 770 really stands out, small comp wheel, loads of flow. Maybe in 2020+ will be all about that G-Series and not EFR anymore

 

[Kinkstaah]

I was going to say the same, you really can see how small the turbos are for their flow in a listing like that (same with G25 too). 

[Lithium]

It'd be unreal if their response stayed "comparable" for size with most other turbos as well, the G30-770 (which would be G7160 in Borg Warner naming) is pretty much the equivalent of EFR8374 flow in an EFR7163 size which would be INSANE if it spooled like an EFR7163, though while there still aren't lots of results out there it seems like the G25-660 is probably laggier than the larger EFR7163 - so it'd be a safe bet that the G30-770 is going to be significantly laggier than what you'd normally expect for the wheel sizes.

They are still WAY smaller than other turbos which flow similar so I kind of hold hope that it will make up some ground there.  

[Dale FZ1]

On 6/25/2019 at 3:22 PM, R_34 said:

Here you go : G30-770.

 

What interests me is their bearing arrangements.  How they work, how long they last (high speeds required to push that air mass), and what Garrett will do (or not do) to make them economically serviceable.  Those who ran the early spec GT series with non serviceable BB cores and temperature intolerant plastic bearing cages were left to buy a new unit rather than rebuild.

[Lithium]

17 hours ago, Dale FZ1 said:

What interests me is their bearing arrangements.  How they work, how long they last (high speeds required to push that air mass), and what Garrett will do (or not do) to make them economically serviceable.  Those who ran the early spec GT series with non serviceable BB cores and temperature intolerant plastic bearing cages were left to buy a new unit rather than rebuild.

No expert on this side of things but I'll point out some things which may or may be naive points:

- High speeds required to push that air mass: They don't spin any faster than any other previous Garretts of the same kind of wheel size.  The G3076 spins at similar turbine rpm to flow ~80lb/min as the GT3076R would to push 53lb/min.   Just out of entertainment's sake, I checked it out and the G3076 can manage the GT3076R's max rated flow (at it's 145,000rpm compressor speed limit) at as low as ~70,000rpm in the right situation

- I am pretty sure that since the GTX series they've used metal bearing cages and dual ceramic ball bearing cores

- Non-serviceble cores - Is this any different to any of the other major name ball bearing core manufacturers?

 

Edited June 28, 2019 by Lithium

[discopotato03]

I think I saw a post on Honda Tech saying something about Garrett altering the G30 turbine trim to be something like the NS111 60mm turbine . I'd have to check but I think they were 76 trim.

 

[Lithium]

1 minute ago, discopotato03 said:

I think I saw a post on Honda Tech saying something about Garrett altering the G30 turbine trim to be something like the NS111 60mm turbine . I'd have to check but I think they were 76 trim.

 

It's the same trim as the conventional GT30 turbine, I said in my first post about the G series turbos that the 30 and 35 are the same size