piecing together a turbo for a 92 gsr. i found an old volvo 740 and an old thunderbird turbo coupe. i think there both t3's but they have different commpressor trims. which one would be better? and is there a chart i could consult about this. thanks

 

The T-bird turbo is probably going to be better..

but, it really depends on what the specs are, both volvo's and t-birds have different a/r's on different models, some specific to transmission type as well.

Jeff