Yes we'd all love HKS GT2530's etc. but given the price it's a no-no. Second hand GTiR / S15 turbo's are often within reach (though sourcing a pair takes a while). Are these any cop and do they fit without modification?

 

Currently running 14psi on stock turbo's and bored already :tt2:

s15 turbos are a gt28r

 

they should be goos for 300bhp each

 

the gtir turbo would be good for around 320

 

both would require a 5 bolt flange and are quite big

 

good turbos though expect to pay around £300 per turbo

Would they fit beside the block on stock manifolds?

i think people have fitted t28s on stock manifolds, they use a 4 bolt flange but i know that on an s13 which uses t25s like the z32, you have to use an adaptor plate.

 

i do have a t28 in the garage and my engine is out but the manifolds are packed away.

 

an even cheaper option would be the t28 off an s14 which is still good for 280+ and can be had for around 100 each

Yeah the T28 would be alright, bit laggy compared to the bb ones but cheaper.. Would they fit straight on I wonder, they are 5stud flages as well aint they?

the bolt pattern is slightly different on the T25s and the T28s.. I found this out when swapping the T25 on my old S13 200sx for a T28, I ended up weld filling one of the holes in the exhaust and re drilling a new one in the right place to fit the bigger turbo. Just something to bare in mind :)