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twin turbo MTDI
by
lucasone
on 28 Apr, 2009 21:14
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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
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#1
by
rallydiesel
on 29 Apr, 2009 05:32
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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!
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#2
by
lord_verminaard
on 29 Apr, 2009 06:46
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Wow, that's a hell of a first post.
Got any pics of your setup? I'd love to see it!
Brendan
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#3
by
andy2
on 29 Apr, 2009 16:07
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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?
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#4
by
lucasone
on 29 Apr, 2009 19:18
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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.
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#5
by
andy2
on 02 May, 2009 07:02
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PM sent.I'll start a new thread pretty soon and post some pics as well.
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#6
by
Giles@PerformanceDiesel
on 07 May, 2009 18:56
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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
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#7
by
Spulen81
on 08 May, 2009 05:54
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Anxiously awaiting more compound turbo threads!
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#8
by
malone
on 22 May, 2009 08:47
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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.
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#9
by
macka
on 07 Jun, 2009 06:47
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bump.......updates?