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Posted by: moparrob May 19 2010, 05:39 PM

OK, here is a newbie question for you.

When comparing a 1.7 case to a 2.0 case, are the dimensions (width) the same from cylinder base to opposing cylinder base on both engines?

The reason I ask is I want to set-up a mock up engine with the 1.7 case I have, with the intention of eventually building a motor based on the 2.0 case. Both motors will be using 1.7 barrels and heads.

I want to design an intake and exhaust system on the bench, on the mock up engine (1.7 case), and want to be sure it will bolt up top the 'real' engine (2.0 case) once it is built.

Any other concerns or thoughts from anyone who may have some experience with this?

Thanks.

Posted by: 70_914 May 20 2010, 10:45 AM

QUOTE(moparrob @ May 19 2010, 04:39 PM)

OK, here is a newbie question for you.

When comparing a 1.7 case to a 2.0 case, are the dimensions (width) the same from cylinder base to opposing cylinder base on both engines?

The reason I ask is I want to set-up a mock up engine with the 1.7 case I have, with the intention of eventually building a motor based on the 2.0 case. Both motors will be using 1.7 barrels and heads.

I want to design an intake and exhaust system on the bench, on the mock up engine (1.7 case), and want to be sure it will bolt up top the 'real' engine (2.0 case) once it is built.

Any other concerns or thoughts from anyone who may have some experience with this?

Thanks.

Posted by: McMark May 20 2010, 10:51 AM

All T4 cases are the same.

Well, except for a few minor changes for the ones that came in Bus motors. But the 1.7 and 2.0 cases are the same.

Posted by: moparrob May 20 2010, 12:37 PM

Thanks for the info.

The situation is that I am intrigued by the turbo motor Dave (ottoxx) is building, based upon a 2.0 bottom end with a 1.7 (highly modified) top end. This sounds like something I would like to duplicate, potentially.

I will need to design an exhaust manifold, locate the turbo and intercooler and install a fuel injection system, so I'm trying to get up to speed with the various components available and figure out what will fit in the engine bay.

I currently have a 1.7 motor (shot) that I can use for dimensions, but I will need to purchase a 2.0 case, crank and rods from which I will build the turbo motor. Once the 'real' motor is built I can then transfer all systems to it. This allows me to do my R&D while I squirrel away the $$ for the turbo motor.

Posted by: 70_914 May 20 2010, 03:19 PM

QUOTE(moparrob @ May 20 2010, 11:37 AM)

Posted by: SLITS May 20 2010, 03:37 PM

You might want to get 1.8L heads as they supposedly have a thicker deck.

Posted by: moparrob May 20 2010, 10:34 PM

70 914 - you are on the money. I checked out Samba and found LOTS of goodies, even running engines on the cheap.

You are absolutely correct, the magic bullet is the cylinder heads. That is where the bulk of the build money will go. HAM has built some trick heads for Dave that are specially designed for his application (which sounds exactly like what I am looking for).

Posted by: 70_914 May 21 2010, 10:12 AM

QUOTE(moparrob @ May 20 2010, 09:34 PM)

Posted by: moparrob May 21 2010, 12:52 PM

Thanks, it sure is a learning process. At least I realize from the outset that the engine is a system, having reviewed numerous posts from ottoxx, Jake Raby and HAM. I think the idea can come together *fairly* easily, especially with all of the pre-existing R&D that have gone into this application. It's nice to NOT be the pioneer for a change

Posted by: Krieger914 May 21 2010, 04:02 PM

I am suprised that nobody has told you yet that you can't tubo a 914.

Posted by: moparrob May 21 2010, 04:24 PM

Ive read that once or twice. I think I must have some sort of personality defect that causes me to attempt things that makes others just scratch their heads and mumble...

Plus I'm really bored.

It's a good excuse to spend time in my garage with