4Agz(T)E

[Twincam16seca]

Hi every one

 

I have been looking at turbo's for the 4agze motor and am a bit stumped on what to go for, e.g the garretts from SR20DET's or a bit smaller as its only a 1.6L?

 

Turbochargers > GT25 Family > GT2554R - 471171- 3

Turbochargers > GT25 Family > GT2560R - 466541- 4

Turbochargers > GT28 Family > GT2854R - 471171- 9

Turbochargers > GT28 Family > GT2860RS - 739548 - 1

 

If anyone can tell me what they would behave, as in taking longer to spool etc would be helpfull as to which i would go for.

I'm also not clear on what the A/R size means?

I'm not planning on huge power, say nothing over 200kw, so i was thinking GT2854R - 471171- 9 or the GT2554R - 471171- 3. I'm not sure if the GT2854R would take longer to spool than the GT2554R?

Any help will be great and let me know what anyone else/you are running.

[trikzlane]

yes you can go t25 or t28, id go t28bb cause they are a better design turbo

[ke70dave]

what makes it better?

 

if you are serious about choosing the right turbo, you need to start looking at compressor maps, and understanding how ot use them to choose you turbo.

 

I'm not up on how to use them completely, but there is heaps of info out there on how to do it.

 

here is a good start, very intersting stuff.

 

http://www.automotivearticles.com/Turbo_Selection.shtml

Edited January 24, 2011 by ke70dave

[Trev]

Was using a GT25/74 on my gte project before I sold up, same as the red top sr20 turbo, seemed like it was fitting for what I wanted.

 

Lately I have been looking at using the T22 from the z32 300zx, I think it will fair alright being that it is used on 1.5L.

 

Also, don't get confused with GT turbos being ball bearing, they use GT on any of their series so even bush turbos (like the GT25/74 above) are called a gt turbo.

Edited January 25, 2011 by Trev

[Twincam16seca]

Thanks guys, yeah i realised that not all are ball bearing turbo's after reading the info on the garrett site.