i have a zc block/ z6 head torbod. i think my turbo has gone bad. i will know for sure tomorrow. its a t3/t4 turbo. if the turbo is bad a friend has a t25 he is going to give me. i was wondering if the t25 would fit my t3/t4 manifold and exhaust flanges. anybody know or know where i can find my answers at? or where to buy a new t3/t4 at. thank you for any input

 

well this fits t25's:



and another t25 flange:



and this is t3/t4:



Definitely look similar, idk if they're the exact same though, i know the t25 is a bit smaller htan the t3/t4. Could maybe try SOMETHING LIKE THIS though? haha idk always a possibily

 

thats a good question but i dont think they will fit unless you get that the t25 plate welded onto the t3 plate

 

there were T3 to T25 flange adapters on ebay. They are similar, but not the same.

 

They are not the same. just rebuild your turbo.

 

or get another t3/t4.....same trim size and then you wouldn't have to retune. T25 is smaller anyway, you'd be able to make more pwoer on the t3/t4 anyway. You could prolly find a t3/t4 on some Civic/Turbo websites (Here on HCF, Honda-Tech, ClubCivic, Turbod16, HomeMadeTurbo.com, etc.) or on ebay, but don't get the generic $75 turbo, make sure it's legit, usually from a private seller.

 

that link... wat kind of a manifold is that? looks like it has different turbo bolt patterns, then a bypass like a normal exhaust? wat is that?

 

I wouldn't get a universal manifold....that "normal exhaust" is there to bolt up an external wastegate....it doesn't look like a good design to me.

 

+1, thats kind of why i said "haha" after it. To me it looks like a turbo manifold that has 3 differnet bolt patterns that fits 3 different turbos, but if it was me i'd just get the right manifold that i need and bolt it on there. And if you go t25 it's internally gated anyway.