2001 626 intake manifold?

[dirtysouth_msp]

Anybody ever tried using a 2001 626 2.0 intake manifold? It is not the same as the manifold sold by PGarage (2000 626). This manifold does not have VICS (variable induction control, dual runners), but it does have VTCS (variable tumbler control). It is a single runner manifold with one set of flapper valves right at the intake manifold gasket area (VTCS). So, it is kind of a mix between the msp stock mani and the PGarage mani. The runners look a lil shorter than the ones on the PGarage manifold and the chamber is larger. All mounting points for fuel rail, etc. seem to be the same.
VTCS is a major restriction when A) the ECT is below 65 degrees celcius and B) the engine is under 3000 rpms, because under these conditions the butterfly valves are closed. However, the butterfly valves could easily be removed. Just curious what this manifold (with VTCS removed) would gain over stock and how it would compare to the PGarage intake mani. Anyone have any insight?

I got my hands on one of these today. I am not going to use the manifold for myself, but I am just curious.

 

[Matrix]

This should help:

http://www.mazdas247.com/forum/showthread.php?t=123654257&highlight=intake+manifold+626

Good luck!

 

[Matrix]

Whoops, I think the thread I provided was mainly about 2001+ 626 manifolds but there is info in there for pre-2001 626 manifolds as well...

 

[dirtysouth_msp]

Yeah, that thread does not address the manifold I am talking about. The PGarage manifold is a 2000 626 manifold. I just did a used motor swap on a customer's 2000 626. His car's manifold is the exact same as my PGarage manifold. The motor we put in his car is from a 2001 626. The manifold on the 2001 motor was single runner design, but it has VTCS...
We had to use the customer's original manifold because the 2000 626s are not wired for VTCS. Since the 2001 manifold was not being used, it is now mine to do with as I please.

Guys, there are tons of threads about the 2000 626 manifold and some threads about pre-2000 manifolds. But, I've never seen anyone talking about this one. Please don't refer me to a thousand threads unless the manifold I am talking about is specifically mentioned. Thanks.

 

[kc3635]

hmm

acually, yea.. I haven't seen much on the 2001 2.0 mani. I have easy access to one as well..

 

[Lodivigo]

Have you compared the PG manifold (same as 2000 626 std. emmisions I think) and yours side by side physically?

 

[dirtysouth_msp]

Have you compared the PG manifold (same as 2000 626 std. emmisions I think) and yours side by side physically?

I recently put the PG manifold on my car. Yes, manifold on the on the 2000 626 (standard/federal emissions model) is the same as the PG manifold. The replacement engine that we got for the 2000 626 was from a 2001 626. The manifold on the 2001 engine is the one that I'm talking about. It has VTCS and does not have VICS, so it is definitely not the same as the PG manifold or the stock MSP manifold. We had to use the original 2000 manifold in the 626, because its not wired for VTCS.

Your avatar is grossing me out man!

 

[Lodivigo]

Lol, you'd hit it

Anyways I was gonna say did you check the size of the ports and compare the runner lengths at all? In that thread mentioned above in one of Ken's posts he talks about the VTCS manifold having smaller ports too. If thats true then even if you get rid of the VTCS it'll never make as much power as the PG one (unless maybe you port/extrude hone it). I know you also said something about the runner length and plenum size being different too so. I have a 2000 626 std. manifold but have never actually held a VTCS equipped manifold so my experience with it is limited.

i started out selling used manifolds and kept getting ones with the butterflies and smaller intake ports even when the yards swore up and down they were the right manifolds. i also bought so many of them that the supply of "cheap manifolds" was pretty much exhausted at that point. do a search at car-part.com on these, most range between $175 and $100, the cheapest ones marked being $75. And while they come up under the category of "4 cylinder standard emissions" i guarantee you some of those, especially the ones marked as year 2000 interchangable, will have butterflies in them.