Hi everybody, i need this information: All the Greddy T78 have the same spect ( a/r and dimensions compressor and turbine ) ?
Thanks

 

yeah

 

Uh. No.

You can get the turbine housing as a 17cm (Supra setup) or a 22cm (Rotary setup). However, they only offer one config for the compressor and turbine wheels.

jeff

 

On my TD07 there is a 17cm turbine housing. If you were to compare this to a Garrett p-trim turbine family, what A/R would it be close to? .84? 1.00? 1.15?

Thanks.

 

My guess, is that it's closest in size to the .84. I'm not 100% sure though. The P trim wheel and the T78 turbine are nearly the same size.
P Trim Exducer: 64.6mm Major Diameter: 74.2mm
T78 Exducer: 65mm Major Diameter: 74mm

jeff

 

Thanks, but if i buy T78 for make 400rwhp at 15 or 16lbs on 13btt street port . What is the spect i need?
An what size of wastegate?

 

If you are buying a kit, then the turbo will be the propoer size for your application. IE a greddy T78 kit from a reputable vendor. I posted the above info just incase you were thinking of buying a T78 (turbo only) that someone has for sale.

jeff

 

the only reason that i said yes was about a month ago i bought just the turbo and called greddy to ask them if the turbos were the same and they said yes. sorry for the runon sentence. i sold that turbo and then just bought the kit. sorry greddy was wrong.

 

Ahh hell... I was hoping you weren't going to say .84, Kinda small