12 Cylinder non stretch longitudinal install discussion (Page 1/4)
engine man MAR 08, 07:29 AM
Hi everyone i just throwing out a idea for you all maybe it will get done by me or one of you it is to install the VW Phaeton 6.0L W12 engine in a fiero as it is 20.1 inches long just about a inch longer than the Audi 4.2 V8 I installed so it should fit the engine has 444 horsepower . the engine is basically 2 VR6 engines put together i know if i get around to doing it it will have the 5hp19 automatic that i would rebuild and do the mods that are needed to strengthen it as it needs a clutch drum upgrade as one of them breaks . I hope this enthoses one of you to do this swap and you beat me to the punch
engine man MAR 08, 09:37 PM
well i have been doing some homework on this and i feel physically installing the engine is not really any harder than the 4.2 Audi but the problems start when doing the engine management as they are using 2 ecus from what i can tell they are treating it as 2 VR6 engines with a common crankshaft so it will have to be figured out how exactly to do that with stand alone ecu's but i am sure it can be done just need to figure it all out
sourmash MAR 09, 07:38 AM
You're a do-er, Mark. You get a lot more done than 97% of people wanting to do swaps.


quote
Originally posted by sourmash:

You know, the W12 is probably the same overall length. Hmmm.



W8 Passat? pfft. You already know how I feel about it since trying to persuade you to spend your money instead of mine.
engine man MAR 09, 11:22 AM
yes i have the W8 i need to remove from the passat and get a car for that but i am not going to start any new projects until after i move back to FL i think i will be back in lakeland fl by next fall as i will have my house where i am finished up and sold
cvxjet MAR 09, 05:00 PM
Does anyone know the weight of the W8 engine? Just curious about how much added weight there is....
engine man MAR 09, 06:59 PM
the W8 is 190 KG or 419 pounds the W12 is 239 KG or 526 pounds
Dennis LaGrua MAR 10, 08:05 AM
The questions that I have is what are you looking to achieve and why would you want a V12 engine? Even if you could fit it in, the engine management issues would be enormous.

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engine man MAR 10, 08:44 AM
Dennis i like the challenge of it more than anything because if it is easy i get bored with it fast and it is not a V12 as that would be to long it is like 2 VR6 engines with a common crank so it is much more compact

[This message has been edited by engine man (edited 03-10-2020).]

sourmash MAR 10, 09:34 AM
It's not an extreme project, IMO. It's worthy. Stretched or not. Once upon a time fuel injected engines were out of the realm of swappers and DIYers. It's an electronically managed engine, not so much different than others.
There's only one other swap that comes to mind as mind as interesting and it's the Tesla. Specifically the Tesla, not just an electric powered Fiero like others have done.
engine man MAR 13, 05:32 AM
yesterday i started up the little brother to the W12 as i moved the passat with the W8 engine and i am hoping to pull that out of the car in the next few weeks but that engine is a easy install as it is so short at 16 inches long for a 8 cylinder and i will use a stock ecu it is just a matter if i do stick or automatic transmission i think the car will be a automatic as i do not plan on keeping it and selling it and automatics sell better