Different SR T25s?

SON240sx Automotive
1

hello… I have a problem with turbos. and their bolt pattern on the exhaust side… which conects to the 02 sensor pipe

on the stock T2 on my 200sx. it’s a 4 bolt patter with the lower side 2 studs are closer together…

now a T25 from an SR has 5 studs/holes… basically 5 places to bolt up

now… I have this “T25” turbo, apparently from an SR aswell , but it has a 4 bolt patter like the T2 but the lower 2 studs are further apart…

problem for me b/c I have an 02 pip that fits a 5 bolt t25 and a t25 that doens’t fit

ty

ed

2

Do a bit of research!! thier are ~5 different garrett T2/25 sizes … not including the Nissan, GM & european variants…

3

well the owner said it came off of “A JDM T25 turbo off of an S13 silvia”

which is why I’m somewhat confused…

could it be from a ca18det?

4

sounds like the 4 bolt DSM stock t25, a tiny little thing

5

arn’t DSM turbo T3 flanged?

6

not as far as i know?
maybe

7

No, they’re not. You can tell the DSM turbo because of the attached inlet pipe.

If it helps, the CA T25 is 4 bolt, and as far as I know, all the SR T25s were 5 bolt.

8

Ok sounds like you have a ca t25.

One bolt is slightly shifted over compared to the sr t25

Does it say .48ar anywhere on it?

pix please.

9

ca and sr t25 flanges are the same. ca turbines are .48 ar while sr turbines are .64ar and .80 ar.

water lines are also different between ca and sr t25. get a pic if you want the best answer

10

No they are not jesse. The ca turbo to turbo-extension almost fits exactly, but one bolt is maybe 1/2" off in one direction.

When I upgraded turbos to a t28 I had to enlarge one of the holes on the stock ca downpipe it would fit.

11

SR20DET OEM turbo Specs

S13 T-25 60 trim 56mm BCI-1 compressor 53.8mm 62 trim
T-25 turbine, .64 A/R turbine housing. Journal bearings.

S14 T-28 60 trim 60 mm BCI-1 compressor in T-04B housing, 62 trim 53.8mm
T-25 turbine. .64 A/R turbine housing. Ball bearing center section.

S15 T-28 60 trim 60 mm BCI-1 compressor in T-04B housing, 62 trim 53.8mm
Inco turbine .64 A/R turbine housing. Ball bearing center section.
*cast divider wall between turbine discharge and wastegate.

GTi-R T-28 60 trim 60 mm BCI-1 compressor in standard T-3 housing. 79 trim 53.8mm
Inco T-250 turbine wheel .86 A/R turbine housing. Journal bearings.