Turbo Flanges

[Shakiel]

Just want to clarify on what size the turbo flanges are on an RB26DETT and RB25DET

Just got a turbo that was on an RB26 and we are planning to bolt it onto an RB25. But I just want to make sure about what the flange sizes are before getting an adaptor made.

Thanks

[mad082]

i'm pretty sure the turbos off a rb26 are smaller than the turbo the rb25. unless it is an aftermarket turbo.

the stock rb25 is a t3 flange. not sure on the rb26. t28 flange?

[Shakiel]

i been told its a T2 flange, but I just wanted to be definate on what it actually is

thanks anyways!

[Adriano]

t2 or t28, they are the same, although any turbo off a gtr that you would fit to an rb25 would want to be a big aftermarket one, and wouldn't have a t28 flange. The biggest t28 flange turbo made by garrett is 440hp, a gtr turbo is about 260-280hp if you push it.

[Shakiel]

Its a HKS 2530, guy selling said its T2 and I think the RB25's are T3.. But turbo is on its way anyhow, so i guess I'll find out once the Stock RB25 turbo is out, I just wanted to get an adaptor sorted out and the right one!

[paulr33]

gtr 2530s are not the same as the gtst 2530s

gtr flange is T2 and gtst is t3/t25

so even if you change the flange it will still suck as the gtr 2530 twins are smaller/not the same as the gtst 2530

[Shakiel]

thanks for that info!

its for my brothers car, his stock turbo shyt itself.. its his first car so im not really after somethin thats gonna push out a lot of power,i guess we'll see how it goes though.

thanks

[paulr33]

you are missing the point, the 2530 will be too small

its probably smaller the stock the turbo

the gtst single 2530 is only ever so slightly bigger than the stocker, if not ther same

[ferni]

but its going to be worse than a stock turbo

[Shakiel]

lucky i done this research beforehand! thanks for all ur replies..

ferni, how u been?! my 180 is gone and i have a GTR on the way over