Originally posted by Twisted6:
Originally posted by Rara:

The real question is, is it worth it?



Depends on who does it, as pointed out, there are far less issues to overcome in the Mazda6 3.0 than the 3.0s your swapping in the Tours and the factory 2.5s.

I like a challenge, rather, I love a challenge. When someone says it cannot be done or is too hard, I love to find a way (Hell I am buying a $500 intake manifold just to see if it will fit [And a $400 CD ignition box with universal directions that were no help]).

An M90 can be bought off of a GM 3800 on Ebay for just a few hundred. Quite a few sites littered with all the particular dimensions you need off of an Eaton M90 to draw up an intake manifold and submit it to a machine shop. It could all be done up for far less than the ADC or Vortech kits, for me that is. Mount the injectors on the outside rather than in, fab up two fuel rails (Hell I've seen someone here do it with just a few pieces from Aeroquip). Shorten the engine mount (I plan on purchasing some flexible urethane and taking mine off to see how easy it would be to do so).

ZZPerformance will even take your M90 and swap in Gen IV MP112 (Found on the Lightning and 03 Cobra) rotors and snout all in the existing M90 casing for only $649 (Save you supply the donor MP112).

I have personally witnessed how well these breath on a GM 3800 and what kind of numbers they can post.



I'm 100% confident that I can mount one in the valley and drive it off the existing FEAD with a change in belt length.
I have ideas and sketches, but then I have sketches of so many things. I didn't do it because the turbo made more sense and was almost free power.
The blower system would cost a bit more on the fabrication side and I need professional machine shop work. BIG $$$
Cost would end up about what it took me to do the turbo, but I have all the benefits of cheaper replacement parts with my turbo and endless variations on packaging, turbo size, etc.
I want to see it done, but it won't be done on my money.
I do hope you do it though.

Former owner of '99 CSVT - Silver #222/2760 356/334 wHP/TQ at 10psi on pump gas! See My Mods '05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red '06 Mazda5 Touring, 5spd,MTX, Black