2.7L Design Modifications
I know, I know... another 2.7L thread.
What if you were given the password to the computer that designed the 2.7L? What would your modifications be to the 2.7 and why? Please don't say "well i'd just scrap the whole thing... blah blah blah". I firmly believe that if a few modifications were made to the internal design, then the 2.7 would be a bullet-proof, powerful, fuel efficient, smooth, refined engine. I mean heck, my 2.7L trep gets better gas mileage than my corolla sometimes (yea, it happens). The only problems I run into are raised production costs. But if it were possible to get this good of gas mileage out of a much more reliable engine then I would have no problem justifying a few extra hundred on the MSRP for the changes.
Externalize the water pump. -- This is a god awful design flaw IMO. It just wreaks of "coolant in the crankcase".
Make the 2.7L a dry sump design. -- That way there's better internal lubrication, plus since there's more oil in the system... it stays cooler. And since there is better internal lubrication it would extend the life of the average timing chain/tensioners. Also, since there is no oil pan, the engine can be mounted lower... more to the car's center of gravity.
Better Quality Rod & Main Bearings. -- A couple of dollars more on the MSRP wouldn't hurt anyone. Although, with the above mentioned dry sump design, there would be dramatically fewer bearing failures anyway, with the current bearings.
Last edited by XGX; 05-22-2008 at 11:46 PM.