turbo sizing

[Mr Ree]

Exactly the reason I chose a happy medium of 9.2:1 between the GTE 8.5:1 and the GE 10:1

It makes a BIG difference

[STR]

Oh should have said sorry, it's for a race car (mostly Club stuff)

[XSVWGN]

I have a master powers T-58 on my 4age turbo running 265kw/355hp on 20psi. Full boost from 4500rpm and it's not ideal for street use but as soon as you go from fifth to third on the motorway you can be easily see 160kmph pretty quickly.

A mate of mine has a 4age turbo ae111 levin with a rebuilt td05-20g and he is expecting similar numbers to my setup according to Speedtech.

Matt

[Bazda]

I have a master powers T-58 on my 4age turbo running 265kw/355hp on 20psi. Full boost from 4500rpm and it's not ideal for street use but as soon as you go from fifth to third on the motorway you can be easily see 160kmph pretty quickly.

A mate of mine has a 4age turbo ae111 levin with a rebuilt td05-20g and he is expecting similar numbers to my setup according to Speedtech.

Matt

The T58 is more for higher end power. If you had a turbo sized for 265kw then you would prob see full boost around 4000rpm or earlier.
The T58 is quite old regarding its design now days and there are much better turbos available. A lot of guys are getting their td05s rebuild with newer technology billet wheel which spool at least 500rpm earlier but can flow more power.