I have an 18g Greddy turbo and need to know the following...

Turbo inlet = Nissan T25 rectangle which happens to be same as T28, true or false?

Turbo outlet/downpipe flange = Nissan T25 as well, true or false?

What do you guys do for the internal WG hole on your down pipes? Most setups I seen with use of the internal WG have no seperate WG outlet but just 1 for the turbo outlet?

 

?

 

I called Greddy...they think it's closer to a T3 turbo inlet flange to fit on the 18g then the t25 turbo inlet flange???

 

the 18g hotside is a T25/T28 inlet and outlet flange.. check out this link for the flanges.....
http://cheapturbo.stores.yahoo.net/cuspic1.html

if u look at the gaskets the t3 is slightly bigger than the t25/t28..

hope this helps, and i do own a b-series greddy kit with the 18g...

 

so thats a 100% guarantee? haha

it's funny how I spent close to an hour on the internet on here and google could not get one confirm 100% which flanges work on the greddy 18g B series kit

TD05H-18G Greddy...to be exact civic SI kit


Modified by ESP-net at 8:38 PM 3/13/2007

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ESP-net &raquo;</TD></TR><TR><TD CLASS="quote">so thats a 100% guarantee? haha

it's funny how I spent close to an hour on the internet on here and google could not get one confirm 100% which flanges work on the greddy 18g B series kit

TD05H-18G Greddy...to be exact civic SI kit


Modified by ESP-net at 8:38 PM 3/13/2007</TD></TR></TABLE>

Yeah. it can get confusing. But no, that is confirmed T25/T28 flanging.

 

are u trying to make a new downpipe or mount a diff. turbo???? ive seen the downpipe flanges u are talking about with sep. turbine/wastegate ports... i don't think it would work because the two ports merge just before the cast elbow that comes with the kit..... a single 3" might do the best ive seen pics floating around here like that, but u can't use ac then.. im running the cast elbow with a home made 2.5" dp to 2.25 catback with no cat ..... it runs really well with no big issues..

 

What I meant was there are a few t25 (t2) turbo outlet downpipe flanges that have a trick recess and shoot the WG hole directly down and out the turbo outlet hole. But id imagine it would act like a brick wall and flow would be interupted rather then just making a tube for the WG hole to run into the down pipe...

Yes I am asking these questions because I am making my own manifold and complete downpipe (with no cast elbow)

I also have another question what would be the moost boost you'd run with no intercooler 5.5 psi? whats in the WG seting...

 

I got a down pipe for ya.


oh and check your pm.

 

I appreciate it but id have to hack that up to mod it for my kit thanks tho...

thanks for the help guys...

Finally got some 100% accurate answers from tommy @ turbochargers.com

T25/T28 Inlet and Outlet flanges will work with the Greddy TDO5H-18g turbo...

This was a struggle to find out the info from a guaranteed resource...
Greddy couldn't even help me...after about 10 calls finally got to someone with 100% accurate answer...