mike saunders

The dimensions are different. The T3 is squarish, while the T25 is rectangular.

EDIT: Google is your friend...

Dimensions of Exhaust Manifold flanges for Garrett T3 and T25:

The Garrett TB03 mount flange outside dimensions are approx. 90mm x 82mm, with 4 bolt attachment holes, on rectangle 85 mm x 45 mm c/c apart.
A Garrett T25 flange & bolt holes are smaller, mount flange is approx 92mm x 62mm, with 4 bolt attachment holes, on rectangle 72 mm x 40 mm c/c apart.

blu89crx

whats the wastegate set at on these? is it the same as the dsm t25s

podxvost1

i have a turbo laying around, looks exactly like yours, and i'm having the same doubts. I'm pretty sure its a t25 from saab, i got mine from 91-92 i think. Anyway i ordered a t25 flange, so i'll let you know if it fits.

podxvost1

the A/R is .48/.49

podxvost1

ok so it is a t25. just got the flange, fits perfect.

blu89crx

alright thanks for letting me know...looks like im just gonna use this one....insted of the t3....but w/e hopefully it will work fine...but anyways does anyody know what the internal wastegate is set at? also is this smaller, larger , or the same size as a dsm t25

thanks

St.Taint

Is the compressor housing a .48 or .80 A/R? The 60 trim can come with either a .48 or .80 compressor housing but the 70 trim that I was referring to has a .80 A/R compressor housing with a .68 A/R exhaust housing. If your turbo has a .48 or .80 A/R compressor housing and a .64 A/R exhaust housing then it will have a 60 trim compressor wheel.

blu89crx

well i don A/R is b/c i havnt recived the tubo yet...but do u know what the wastegate is set at?

podxvost1

Well, as i mentioned before the a/r is .48/.49 The wastegate is set to 7psi, but dont quote me on this.

baldur

That is a Saab manifold, and a T3 .48 exh .42 compressor IIRC.
Known as the "T3 45 trim"