can i simply put a rb20 turbo on a t3/t4 downpipe

[2boring]

my t3/t4 turbo just shat it , now i dont have much money so im thinking can i just put a rb20det t3 turbo on it, and itll bolt straight on to downpipe , or is exhaust flange size different

please need help asap

[mello88]

What kind of dump flange did you have on your t3t4? Was it an internally gated 5 bolt dump? A 4 bolt 3" dump? A V-Band clamp? None of those options will work with stock RB turbine which has a 6 bolt dump flange.

You could probably pick up a stock RB turbo and cast elbow and DP for cheap if you want to go that route.

[Bronze MFP]

i have 2 stock cast elbows and my prototype stainless steel open wastegate elbow if you need one. had an extra rb20 turbo up until last weekend :-/

just saw that you are in australia. hit up ande at AM performance, he made both of my stainless steel screamer pipes. good man, good work, good price. he'll hook it up. not sure what part of oz he's in but im sure shipping would be cheaper than something from the USA.

[2boring]

thanx heaps guys ill look into contacting him...

[l0nestar]

I might be interested in that SS wastegate elbow... Email me..

[2boring]

i was always under the impression that rb20 turbos had t3 flanges for both manifold and downpipe connections guess i was wrong...

btw downpipe is a 5 bolt downpipe

[2boring]

heres a pic of the turbo im getting:

http://users.tpg.com.au/adsla90h/54fb_1_b.jpg

[mello88]

Yes they do have T3 inlet flanges. The outlet is a special pattern that you won't really see anywhere else... 6 bolt.

Standard t3/t4 5 bolt:

RB 6 bolt:

[2boring]

ah fair enough, ill see if local exhaust shop can modify it if not, then time for a new downpipe

[Sky80]

Is it a Garrett aftermarket t3/t4? if so why not just buy a rebuild kit for it? Alot cheaper then buying a new turbo or going back to the POS RB turbo

[2boring]

i think i prfer t28 spools alot quicker, yeah the t3/t4 was aftermarket