silverboy

Has anyone installed the 3.9l kit from Cargraphic? They claim 450bhp and 472nm vs stock's 415bhp/400nm. They also say they've some clients have been running theirs for over 50K km with no problems. Kit comes with liners,pistons,rings, ecu, exhaust system for about US$28k (full kit).

What do you guys think?

cleanme

Well, seeing as they're boring out the engine, adding lower friction liners and probably an expensive alloy mix, pistons, rings and exhaust. I bet their ECU really takes advantage of the stronger components and maybe they are upping the compression. But if you're going for power, why not get the 4.0L kit

But doing so would probably lower your cars resale value. But if you've got the money and don't care a 4.0L flat six naturally aspirated beast would be sweet!

Also for those of us that still use lb ft of torque, the 3.9L is 348.1 lb ft and the 4.0L is 358lb ft.

EDIT: Here's the picture of the kits http://www.bcopping.com/kit.jpg

silverboy

The 4.0L kit is practically double the price of the 3.9L kit and adds only 15BHP. Reason being is they have to do extensive machining on the engine and change the con rods. The 3.9L one uses the same stock con rods. Thomas Schnarr says the 3.9L one is popular in Europe.

By the way Brad, more power to your project 'Atom'. Looks great!