Doing an engine/transmission rebuild on my Metro. Anything worth considering?

[Crono]

I'm planning on getting my engine and transmission rebuilt in my '92 Geo Metro (3 cylinder). It's already got the shorter duration cam mod and the transmission from a 4 cylinder Metro. Is there anything else I might be able to do to help improve efficiency while I'm rebuilding it?

[Frank Lee]

Bump the compression, port match, 3-angle valve job, 2-ring xfi pistons, underdrive the belt-driven stuff.

[oil pan 4]

Engine block heater.
http://ecomodder.com/forum/showthrea...mer-23893.html
You don't have to go that extreme, standard 600w heater would be sufficient for a 3 cylinder engine.
http://ecomodder.com/forum/showthrea...ing-25512.html

File fit the rings to each bore. Keeping more air/fuel in the cylinders so it gets burned.
Also keeps fuel and combustion byproducts out of your oil, extending oil changes.

[DIMS]

DLC coating on the bearings. Or Microblue

[RustyLugNut]

Coating engine internals with both friction reducing coatings as well as thermal barrier coatings can be a benefit.

Contact Swain Tech for service. If you want to try a DIY approach, Tech Line Coatings can help you out if you have a business license and you have the shop skills and patience.

Race Coatings | Swain Tech Coatings | Industrial Coatings | High Performance Racing Coatings

Tech Line Coatings | Automotive ( Hi-Performance ) Coatings

[Crono]

Thanks for the ideas everyone, I'd forgotten about this thread since I don't post here often, but I read everything.

[cosmick]

You'll spend more on that than if you just go to Pick-N-Pull and get 3 used examples of each. They should be good for at least 200K miles each, it's not hard to find them with half that.

[cosmick]

Originally Posted by DIMS

DLC coating on the bearings. Or Microblue

Not worth it.

[cosmick]

Originally Posted by RustyLugNut

Coating engine internals with both friction reducing coatings as well as thermal barrier coatings can be a benefit.

Contact Swain Tech for service. If you want to try a DIY approach, Tech Line Coatings can help you out if you have a business license and you have the shop skills and patience.

Race Coatings | Swain Tech Coatings | Industrial Coatings | High Performance Racing Coatings

Tech Line Coatings | Automotive ( Hi-Performance ) Coatings

Too little results for too much cost. This stuff is best left to unlimited funded race efforts.

[cosmick]

Originally Posted by oil pan 4

Engine block heater. File fit the rings to each bore. Keeping more air/fuel in the cylinders so it gets burned.
.

Block heaters are for old diesels.
File-fit rings are for racing engines where more gap than standard helps against ring butting at extreme temps. Can't even get them for any 3-cylinder because nobody races them.