many turbo questions

I am finally considering an upgrade for my turbos and i have looked around and found the shells of tdo4 with upgraded compressor wheels. SO first i was wondering what can the stock 9b turbos be upgraded to and like is the shell of the 9b 13g and 15g different im just curious cause they all just simply say tdo4 on them pleases help and help fast

Ok, same advice as I just wrote to G35, DO MORE RESEARCH. If you don't know the differences of a 9b, a 13g or 15g, chances are you aren't ready to be upgrading.

1) Go to stealth316.com, read his turbo upgrade guide.

2) Go to G35's thread titled something like "turbos or intercoolers first" and read it ALL.

A turbo upgrade shoudn't be something you decide in a rush. You need to research or you will either waste a few grand, or blow an engine.

Ok, same advice as I just wrote to G35, DO MORE RESEARCH. If you don't know the differences of a 9b, a 13g or 15g, chances are you aren't ready to be upgrading.

1) Go to stealth316.com, read his turbo upgrade guide.

2) Go to G35's thread titled something like "turbos or intercoolers first" and read it ALL.

A turbo upgrade shoudn't be something you decide in a rush. You need to research or you will either waste a few grand, or blow an engine.


agreed, it took me probably a total of 4 months to decide which ones i wanted plus doing all the fabrication to get it to work. Of course, 18T's aren't direct bolt on like most of these turbo upgrades.

ok enough about research i am just curious if the different sized turbos are the same shell trust me there is a good reason for me wondering this just tell me that

9b, 13g, dr500, 15g, dr660 are all the same size and will all bolt up withought modification, they are all TD04 housed. Flow is roughly in that order and so is price usually. Why exactally are you asking?

Well if you had read the first link I gave you, you would have found your answer already.

9b, 13g, dr500, 15g, dr660 are all the same size and will all bolt up withought modification, they are all TD04 housed. Flow is roughly in that order and so is price usually. Why exactally are you asking?

DR650 ;)
and don't forget the 17G.

Also don't discount the almighty 14b, 16g, Evo 16g swap ;)

DR650 ;)
and don't forget the 17G.

Also don't discount the almighty 14b, 16g, Evo 16g swap ;)

of course he said bolt up without any modification done

of course he said bolt up without any modification done


of course you have no idea :smokin:

my 14bs with Bullseye housings bolted right up just fine.

ya man listen to Igovert500 he is right and i thought i knew some about turboz but after i read the links he gave me it help me a whole lot. again thx Igovert500 those links helped a whole lot man. your the man.

ohhh y a like Igovert500 told me read all of it, dont just skip around and read the whole thing.

of course you have no idea :smokin:

my 14bs with Bullseye housings bolted right up just fine.

if your going to go with 14B's, you might as well pay for the td05 conversion so you can upgrade to bigger td05 turbos later on. For the 14B's, i'd rather go ahead and get 13T's