4.2 audi v8..... my next project for 2011

Alternative power-plants and transplants (GTi, Porsche, Subaru, Audi, diesel etc). Discussion and Q&A last answered over 2 years ago.
You may also want to visit the Wiki(pedia) for a more structured index of T25 repair, maintenance, technical and ownership topics.

Moderators: User administrators, Moderators

jimmypatch
Registered user
Posts: 9
Joined: 31 Aug 2007, 20:47
80-90 Mem No: 0
Location: Ipswich

4.2 audi v8..... my next project for 2011

Post by jimmypatch »

So guys im thinking the next step is to go for a 4.2 v8.
The inherant fault with t25 engine swaps is the mating of the engine to the gearbox, so why not just delete the problem and take the donor vehicles engine, gearbox, suspention and brakes.
im thinking chop out the entire rear and of the van in insert the audi sub frame with all it's brakes suspention and driveshafts.
loads of welding required but technically easy than doing my Subaru swap!!!

Has anyone seen this done before?
89 caravelle 2.0 twin turbo subaru
87 Merc G wagon 3.0D
95 Audi RS2
04 Honda civic 1.7td

User avatar
ringo
Registered user
Posts: 2245
Joined: 14 Oct 2005, 05:41
80-90 Mem No: 1375
Location: Nottingham

Re: 4.2 audi v8..... my next project for 2011

Post by ringo »

Wont the wheels be going in the wrong direction though?

I suppose you would flip the box....

Ringo
Now driving a big bad VW LT Florida.

big red bus
Registered user
Posts: 316
Joined: 19 Feb 2007, 16:30
80-90 Mem No: 3421
Location: west midlands (3421)

Re: 4.2 audi v8..... my next project for 2011

Post by big red bus »

seen this done on mk1 golf to fit all tt 4 wheel drive running gear. Would be a interesting conversion. Guessing your fabrication skills and resources are good then its possible. wheels won't bee going wrong way, enigne will be in front g/box. :ok go for it

jimmypatch
Registered user
Posts: 9
Joined: 31 Aug 2007, 20:47
80-90 Mem No: 0
Location: Ipswich

Re: 4.2 audi v8..... my next project for 2011

Post by jimmypatch »

The wheels will spin the correct way as the engine will be mid-mounted with the gear box behind just how it is in the audi.
The wheelbase on an A8 is very close to that of the t25.
So imagine this....t25 drives onto my driveway, rip out "pooh" VW engine, cut out the tail gate and rear bumper panel (retain for later),
cut out most of the loading bay floor, wheel in engine and gearbox' weld a frame to support them. offer up suspention and weld brackets to hold it,
roll arches as required. re-weld the tailgate back on .... Done :ok

Alternative engines dont really work with t25 gearbox's so why fight it.
you can get a whole A8 for 1000 pounds which is less than a gearbox rebuild!
89 caravelle 2.0 twin turbo subaru
87 Merc G wagon 3.0D
95 Audi RS2
04 Honda civic 1.7td

hairyuk
Registered user
Posts: 10
Joined: 18 Oct 2008, 20:15
80-90 Mem No: 0
Location: bristol

Re: 4.2 audi v8..... my next project for 2011

Post by hairyuk »

sounds totally plausable i was thinking of doing something simular. as i'm planning on keeping my van i was thinking along the route of making a universal mount welded into the back of the van so that i could change engines and running gear when newer affordable engines come along.
the main problem with this plan is losing valuable space inside, after all i want to use it as a van/camper.
The main problem with your plan is it's going to be a thirsty beast that no one is likely to want when you come round to selling it.

jimmypatch
Registered user
Posts: 9
Joined: 31 Aug 2007, 20:47
80-90 Mem No: 0
Location: Ipswich

Re: 4.2 audi v8..... my next project for 2011

Post by jimmypatch »

if you had a 4.2 v8 in a van you would never sell it. i wouldn't use it as a camper i would just use it as a toy to blow away boy racers.
A universal mount is what i had in mind too.
89 caravelle 2.0 twin turbo subaru
87 Merc G wagon 3.0D
95 Audi RS2
04 Honda civic 1.7td

Plasticman
Trader
Posts: 8047
Joined: 12 Oct 2005, 20:55
80-90 Mem No: 1948
Location: lincolnshire

Re: 4.2 audi v8..... my next project for 2011

Post by Plasticman »

Not a problem if your handy, just dont make the mistake of doing a rough and ready job, make it look like a planned manufacturers installation
mike
oh and progress pickies a must............ :ok

User avatar
toomanytoys
Trader
Posts: 2850
Joined: 11 Oct 2005, 18:37
80-90 Mem No: 41
Location: Boston area, South Lincolnshire

Re: 4.2 audi v8..... my next project for 2011

Post by toomanytoys »

you might want to explore how you make the 4wd box into 2wd, as I suspect that might mean a bit of extra work..... the A8 box isnt known for its reliability after 60-80k from what I am told.... worth looking into also...

User avatar
R0B
Moderator
Posts: 18885
Joined: 07 Oct 2005, 17:33
80-90 Mem No: 864
Location: Cheshire

Re: 4.2 audi v8..... my next project for 2011

Post by R0B »

would the insurance not be prohibitive on something like that...
2.1 LPG/Petrol Auto Caravelle

"The difference between genius and stupidity is that genius has its limits"

User avatar
dickspanner
Registered user
Posts: 395
Joined: 27 Mar 2006, 09:17
80-90 Mem No: 4641
Location: Just outside Bury

Re: 4.2 audi v8..... my next project for 2011

Post by dickspanner »

I like these tyoes of projects as it shows good conversion skills.

I think if I was to convert like this I would look at a really good, powerfull and economical diesel. Remember you are going to be pushing a 2.25ton vehicle with the airodynamics of a loaf of bread.

My crewcab is a 2.25ton hot hatch and dusts boy racers which is good fun watching their faces but it is a tad thirsty when you hit the load pedal. Hence the reason I purchased a gas kit for it (Still not fitted though).

Good luck and create a story board like mine and maybe you will take over in relation to viewing figures etc. :ok

Dickspanner
Crewwy now running a 2.9litre 24V V6 Injection Cosworth motor.Oh the Joy. Happy Happy Joy Joy. Mmmmmmmmm

0 to loud with a big grin

Member number 4641

D I C K Spanner

jimmypatch
Registered user
Posts: 9
Joined: 31 Aug 2007, 20:47
80-90 Mem No: 0
Location: Ipswich

Re: 4.2 audi v8..... my next project for 2011

Post by jimmypatch »

With the gearbox' issues I'll remove the prop whilst the A8 is still together and see what lights come up on the dash.
With reguards to the issues of unrealiable A8 box's there are plenty of A6's and A8's out there if needs be I'll keep throwing in secondhand box's you can get a whole A8 for a grand!
Yeah a big powerful diesel would be best but they cost alot of money. I think i can do this whole project (including buying t25 & A8) for £3000.
89 caravelle 2.0 twin turbo subaru
87 Merc G wagon 3.0D
95 Audi RS2
04 Honda civic 1.7td

jimmypatch
Registered user
Posts: 9
Joined: 31 Aug 2007, 20:47
80-90 Mem No: 0
Location: Ipswich

Re: 4.2 audi v8..... my next project for 2011

Post by jimmypatch »

Insurance....
Just Kampers will insure my twin turbo scooby van for £350.
If you want it cheaper just em it's still a 1.6D LOL
89 caravelle 2.0 twin turbo subaru
87 Merc G wagon 3.0D
95 Audi RS2
04 Honda civic 1.7td

User avatar
jamesc76
Registered user
Posts: 6241
Joined: 14 Oct 2005, 14:42
80-90 Mem No: 1186
Location: Nottingham
Contact:

Re: 4.2 audi v8..... my next project for 2011

Post by jamesc76 »

jimmypatch wrote:Insurance....
Just Kampers will insure my twin turbo scooby van for £350.
If you want it cheaper just em it's still a 1.6D LOL


yeah do that and they will never pay out! upto you!
DJ at Dubdayz Summerfest
Now cutting about in an LT35 MWB

Plasticman
Trader
Posts: 8047
Joined: 12 Oct 2005, 20:55
80-90 Mem No: 1948
Location: lincolnshire

Re: 4.2 audi v8..... my next project for 2011

Post by Plasticman »

jimmypatch wrote: If you want it cheaper just em it's still a 1.6D LOL
Its called tongue in cheek :lol:
mike

User avatar
dickspanner
Registered user
Posts: 395
Joined: 27 Mar 2006, 09:17
80-90 Mem No: 4641
Location: Just outside Bury

Re: 4.2 audi v8..... my next project for 2011

Post by dickspanner »

Thing is with any conversion its the things you dont think of that add the costs in trickles.

Putting the cosworth engine in the crewcab ended up costing me more than I wanted through having to spend on plenty of small stuff.

Good luck with the conversion and post lots of pictures if you decide to do it as I would loe to see it.

Look on a few german T25 sites and you will see many a conversion like you are talking to give you some ideas.

Dickspanner
Crewwy now running a 2.9litre 24V V6 Injection Cosworth motor.Oh the Joy. Happy Happy Joy Joy. Mmmmmmmmm

0 to loud with a big grin

Member number 4641

D I C K Spanner

Locked