Turbo high flowing!!

[Valver.]

man we need pics and details of all these secret projects of yours!

Don't we just

[twin eng, twin turbs]

Haha i've seen all this stuff. Many times.

I'd rather my carbied NA engine though....

HA HA! My mums mk1 is faster than your car for at least the next year before you get yours running.....

[Preen59]

HA HA! My mums mk1 is faster than your car for at least the next year before you get yours running.....

Yeah whatever. I'm getting there..

[richo]

I'll get photos of all this stuff and post it next week seeing as marty will never get round to it.

[twin eng, twin turbs]

I'll get photos of all this stuff and post it next week seeing as marty will never get round to it.

Ha! heres some photos then, Starting with the massive turbo that will be helping make the 500hp goal power output from my 2.1 litre 16v.

[twin eng, twin turbs]

Heres a shot of the 4" coned outlet on the well modified exhaust housing sitting on the 16v turbo manifold i made from scratch. You can see the ports which are polished all the way through on the manifold with webbing welded all the way between the runners to prevent any warping under the high temperatures it will endure causing leakage at the gasket to the head. I will get the manifold and exhaust housing high temp coated in the future... What isn't pictured is the 38mm tial wastegate to go with it all..

[twin eng, twin turbs]

Heres the custom inlet manifold i fabricated. The runners are 56mm diameter at the plenum with bellmouthed ends tapering down to the oval shape to suit the ports of the head. At the head they are 6mm bigger in diameter than stock and ported, polished and port matched with dowels fitted so once in place the join is smooth without any step at all. The plenum is 100mm diameter tapering off at the end and i am currently machining up a billet 80mm throttle body to suit the manifold so they are matched. I will polish all of this once finished.

[Oneofthegreats]

Nice work.

What model/spec is that turbo?

I like the pipe expansion. Just like a expansion chamber on a motorbike. My friend used this style on a FJ20 with a GT3540 in a mk1 escort with huge success & power too!

Just for interest sake, I personally wouldn't web a hig hp turbo exhaust manifold like that.

They do expand a fair bit & if there contained like that, they will crack elsewhere & in a bigger way. they'll also crack the hell out of the ceramic coating.

My race 4-1 pacemaker's on my old ute with high temp coating even cracked under the temp. put on it in a burnout comp!

The flange & stud holes should also be cut & separated from each runner for the same reason.

[twin eng, twin turbs]

Heres a pic of one of the front brake calipers for the scirocco that will require at least 17" wheels, custom mounts and 13" rotors to suit. All polished up its a willwood 4 pot with almost 2" diameter pistons. Should be up to the task! Thats all the pics i am sharing for now...

[twin eng, twin turbs]

Nice work.

What model/spec is that turbo?

I like the pipe expansion. Just like a expansion chamber on a motorbike. My friend used this style on a FJ20 with a GT3540 in a mk1 escort with huge success & power too!

Just for interest sake, I personally wouldn't web a hig hp turbo exhaust manifold like that.

They do expand a fair bit & if there contained like that, they will crack elsewhere & in a bigger way. they'll also crack the hell out of the ceramic coating.

My race 4-1 pacemaker's on my old ute with high temp coating even cracked under the temp. put on it in a burnout comp!

The flange & stud holes should also be cut & separated from each runner for the same reason.

I used 4mm wall thickness mild steel steam pipe bends for the runners for good reason. On my 1.8t audi a4 i made a similar manifold running a GT 25/40 turbo without any problem for years. Its so solid that it dosn't warp or crack. My mk2 has a similar set up with water cooling around the turbine flange which has kept the temps down preventing any cracks or gasket issues. After having made stainless manifolds in the past with thinner wall thickness (1.6mm) i have had issues with them cracking and flanges warping causing leaking gaskets. Thats why i make mine from mild steel with much thicker wall thickness.

Turbo is based on a GT35r with modified housings, ported and polished for improved flow etc