Is the Greddy TD05H-18G turbo equivalent to a T3? I want to upgrade the greddy manifold and want to get the right size for the 18G.

 

The flange you need is a t25. You can get a manifold from south florida performance

 

Thanks for the info! Does anyone else know where I can get an upgraded manifold for my 18g that makes more power than the stock greddy one?

 

No. The flange is not a T25. It is actually about .7cm smaller than a T3 and is rectangular shaped. Actually it is considered to be an 8cm2 flange that is used. You could theoretically port it slight for the T3, but if you look inside the edges of the flange into the manifold, it's rather thin at the sides.. You could port it, but I don't know about how the integrity of the manifold would hold after that..

The Greddy Mani flows quite well from it's design. It's almost like a short runner cast manifold. on that 18G, you won't get any additional power from the manifold. some of us w/ Greddy tried that years ago. It's all in the wastegate, the flapper in the turbine side. (can be ported to 34mm) and more boost.. That's it.

I just sold mine to a DIY person, and got a new mani. That's only if you plan on getting another turbo.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by The Shodan &raquo;</TD></TR><TR><TD CLASS="quote">No. The flange is not a T25. It is actually about .7cm smaller than a T3 and is rectangular shaped. Actually it is considered to be an 8cm2 flange that is used. You could theoretically port it slight for the T3, but if you look inside the edges of the flange into the manifold, it's rather thin at the sides.. You could port it, but I don't know about how the integrity of the manifold would hold after that..

The Greddy Mani flows quite well from it's design. It's almost like a short runner cast manifold. on that 18G, you won't get any additional power from the manifold. some of us w/ Greddy tried that years ago. It's all in the wastegate, the flapper in the turbine side. (can be ported to 34mm) and more boost.. That's it.

I just sold mine to a DIY person, and got a new mani. That's only if you plan on getting another turbo.</TD></TR></TABLE>

You mean I could port the internal wastegate on my 18G to 34mm? Do you know what it is stock?

I would like to do that because I am having major boost creep problems.

thanks.

 

If its not a t25 flange then why can you buy an sfp manifold w/ t25 flange and bolt it on? and how about the hks manifold with T25 flange, how come that one works?

 

bump.