twin turbo MTDI

[lucasone]

Has anybody successfully built a twin turbo MTDI? if so, what turbo were used for the primary and secondary? I have converted my TDI(AHU) to a twin turbo with some turbos I had at my shop(GT15) (TD05) and it works well but my secondary turbo is too small and my EGT will hit 1350 F. by the time I hit 110kph.
I am using a 12mm giles pump and running 30PSI of boost. I am ready to fabricate a more effient exhaust manifold because I am currently using the stock manifold and turbo(GT15) until I know what turbo will work better.

Any feedback would be greatly appreciated,

Thanks

[rallydiesel]

I think you are one of the few and maybe the only one on this side of the pond. Could you post some pics of your set-up? Do you have an external waste-gate? Ported? What are you running for a headgasket/headstuds?

Welcome to the site!

[lord_verminaard]

Wow, that's a hell of a first post.    Got any pics of your setup?  I'd love to see it!

Brendan

[andy2]

I have a running TDI-M with compound turbos.I don't know how to read compressor maps etc..but have eventually come up with a working system after 4+ years of testing.

Depends on how much boost you are looking for?What compressor  inducer size is the the primary turbo?

[lucasone]

Hey guys. I am using ARP studs with a 3 hole head gask. I keep the boost to a max of 30psi, tried 40psi once and blew the head gask. I ported the exhaust, but only cleaned up the intake ports (didn't want to loose the swirl effect) and I am using an external waste gate. I will send some pictures.
I don't know what size my primary inducer is but I will find out.
What turbos are you using, and what are the pros and cons to your set up?
Thank for your response.

[andy2]

PM sent.I'll start a new thread pretty soon and post some pics as well.

[Giles@PerformanceDiesel]

Hey guys

i have been working with a guy called Devor from Precision Auto
in Kelowna, BC and he has built a Twin turbo M-TDI in a mrk 3 jetta.

he's using an early TDI non vnt turbo and i'm not sure what the
bigger one is though.

he had an impromptu race with a Porsche turbo ceyenne and
kept up no problem. he's getting a dyno done soon

Giles

[Spulen81]

Anxiously awaiting more compound turbo threads!

[malone]

Hey guys

i have been working with a guy called Devor from Precision Auto
in Kelowna, BC and he has built a Twin turbo M-TDI in a mrk 3 jetta.

he's using an early TDI non vnt turbo and i'm not sure what the
bigger one is though.

he had an impromptu race with a Porsche turbo ceyenne and
kept up no problem. he's getting a dyno done soon

Giles

That's awesome.. gonna keep an eye out for this one

Looking forward to andy2's update too.

[macka]

bump.......updates?