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Author Topic: V8 diesel from an Audi 3.6/4.2 ?  (Read 4208 times)

January 07, 2011, 11:11:52 am

smokin_fun

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V8 diesel from an Audi 3.6/4.2 ?
« on: January 07, 2011, 11:11:52 am »
In the summer I picked up a 91 audi V8 for my mother. It was immaculate and very well priced. And goes like hell!

After doing some research into the Audi v8 I found out it was essentially two vw 1,8 16v's put together.

This got me thinking of the dark side.

Is it possible to convert one of the 3.6's or even 4.2 to td by swapping the heads off of a aaz or 1.6 td, pistons, and some fancy crank work (not to mention plumbing, timing....etc).

I have seen these motors making HUGE power, but could they take the abuse of running a relatively low compression (16.5-18:1) twin turbo diesel setup.?



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Reply #1January 07, 2011, 11:32:09 am

R.O.R-2.0

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Re: V8 diesel from an Audi 3.6/4.2 ?
« Reply #1 on: January 07, 2011, 11:32:09 am »
why not use the V8 TDI?

350 HP V8 TDI marine engine.

thats the marine version, but they gotta make a normal version if they make a marine version.

heres some technical info, bore, stroke, all the fun stuff.. surprise surprise, it has a VNT on it..

V8 TDI Tech Info
« Last Edit: January 07, 2011, 11:37:28 am by R.O.R-2.0 »
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92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.
Reply #2January 07, 2011, 12:22:04 pm

jaysen71581

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Re: V8 diesel from an Audi 3.6/4.2 ?
« Reply #2 on: January 07, 2011, 12:22:04 pm »
VW Marine !!!! OMG !!!!!!  ::)
Daddy needs a new boat motor !!!!
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Reply #3January 07, 2011, 12:26:13 pm

R.O.R-2.0

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Re: V8 diesel from an Audi 3.6/4.2 ?
« Reply #3 on: January 07, 2011, 12:26:13 pm »
Quote from: jaysen71581 on January 07, 2011, 12:22:04 pm
VW Marine !!!! OMG !!!!!!  ::)
Daddy needs a new boat motor !!!!

my thoughts exactly, when i first saw VW marine..
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92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.
Reply #4January 07, 2011, 12:37:08 pm

MJF

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Re: V8 diesel from an Audi 3.6/4.2 ?
« Reply #4 on: January 07, 2011, 12:37:08 pm »
-00-01 Audi A8 had 3,3 V8 TDI from factory. 4-valve heads, twin-vnt's, commonrail...
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'74 VW Scirocco TD
'86 Audi 80q 1,9TDic
'01 Audi A6q 2,5TDI
Reply #5January 07, 2011, 01:00:23 pm

R.O.R-2.0

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Re: V8 diesel from an Audi 3.6/4.2 ?
« Reply #5 on: January 07, 2011, 01:00:23 pm »
a 3.3 tdi?
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92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.
Reply #6January 07, 2011, 01:14:54 pm

MJF

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Re: V8 diesel from an Audi 3.6/4.2 ?
« Reply #6 on: January 07, 2011, 01:14:54 pm »
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'74 VW Scirocco TD
'86 Audi 80q 1,9TDic
'01 Audi A6q 2,5TDI
Reply #7January 07, 2011, 05:14:22 pm

mystery3

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Re: V8 diesel from an Audi 3.6/4.2 ?
« Reply #7 on: January 07, 2011, 05:14:22 pm »
Why not use the v10 from a toureg?
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Reply #8January 08, 2011, 09:25:54 am

R.O.R-2.0

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Re: V8 diesel from an Audi 3.6/4.2 ?
« Reply #8 on: January 08, 2011, 09:25:54 am »
its probably MUCH more expensive than a V8 TDI..
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92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.
Reply #9January 08, 2011, 02:58:06 pm

VW Smokr

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Re: V8 diesel from an Audi 3.6/4.2 ?
« Reply #9 on: January 08, 2011, 02:58:06 pm »
Informative Audi self-training manual on the 4.2L TDI   http://www.volkspage.net/technik/ssp/ssp/SSP_365.pdf

Sounds like a great engine for an A8, a Vanagon, or a total sleeper VW Quantum Syncro wagon!

J.R.
SoCal
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