The ULTIMATE OEM Intake Manifold Comparison Thread

[KrayzieFox]

Alright, here we go.

I've somehow (don't ask how.. lol) managed to accumulate almost every type of intake manifold available for our cars. So I figured I would take some pictures of ALL of them so we can address the differences in ONE single thread. I know there is millions of them floating around, but I would like for this thread to become the one that holds all the answers. I've taken pictures of all 4 manifolds for comparison, so let the discussion/picture requests begin.

First up is the notorious 2000+ 626 w/o VTCS manifold. This is the manifold that ProtegeGarage sells, and is the holy grail of the MSP community. Since this is the manifold that everyone is raving about, we will compare all other manifolds to it and there is some shots of the runner comparisons in post #5.

 

[KrayzieFox]

Next up, we have the 2000+ 626 w/ VTCS manifold. By looking at this manifold, I see NO difference than the one that came without the VTCS flaps. There is an extra vacuum line on the end opposite of the throttle body (pic 3) and that's about it. Runner sizes are identical between the two manifolds (see post #5).

 

[KrayzieFox]

This here is the pre 2000 626 manifold that Alejo_NIN used on his MSP and this manifold is a LOT different than the 2000+ 626 manifolds. It has smaller runners, different fuel rail mounting holes, different EGR placement, and different injectors. This THREAD contains the most information about this manifold so far. The main quote (in my opinion..) has been extracted from page 8.

ok guys, the f***** time has come!
i'm in the precess of installing my 626 manifold.
i thought of the following problems and their solutions:
1)fuel rail, in fact, does not FIT
Solution: USE THE OLD 626'S FUEL RAIL, F*** IT.
2)Fuel lines, in fact, DO NOT FIT either
solution: cut 1/2" from the 626 fuel rail, make sure you trim the tip very good...then install stock MSP fuel line...FITS like a GLOVE!
3)MSP Injector size does not fit 626 manifold. and using the 626 injectors is not an option!
Solution: remove the little black spacers and bolt the fuel rial directly wihtout them!!!!
4)EGR Valve has bigger screws than those that came with the original 626, thus, not allowing to fit those screws!
Solution: use the stock 626 EGR holding screws or if at all possible, don't use EGR altogether. Instead, leave EGR plugged in hanging around in the engine bay.

As noted by Alejo, this manifold can indeed be made to fit.. but requires quite a bit of customizing.

 

[KrayzieFox]

And now we come to the stock 2001+ Protege w/o VTCS manifold. It's almost stock.. minus the VTCS flaps, but we get the point. For comparison purposes, it will have to work.

Not much to say about this. We're all familiar with this manifold. It works alright, VTCS removal helps, but for us turbo guys the 2000+ 626 manifolds are the ones that have proven themselves on the dyno.

 

[KrayzieFox]

And lastly, I took some side-by-side comparisons of the two 2000+ 626 manifolds, and compared them all to the PGarage replica on the right side of each picture. Pic 2 is the 2000+ 626 w/ VTCS, Pic 3 is the pre 2000 626, and Pic 4 is the MSP w/o VTCS.

 

[SwirlFX]

Thanks for doing this comparison. Great Info!

 

[khaosman]

Now you just need a JDM intake manifold.

Also a digital caliper to compare clearances of the runners, and a couple days at the dyno to really compare them

Good work tho

 

[KrayzieFox]

Now you just need a JDM intake manifold.

Also a digital caliper to compare clearances of the runners, and a couple days at the dyno to really compare them

Good work tho

Digital caliper? Pssh.. I have those in my eyeballs.

 

[special--k]

Thanks for the work, but i think the IM question has been betten into the ground several time over.

 

[ogsp5]

I have the stock fsde manifold but both systems (VTCS & VICS) have been removed. The chambers are also ported and slightly polished. I wonder how that compares to the PG intake manifold with air flow.

 

[fatti03msp]

nice lil comparison

 

[Ricktalife]

(deadhorse) <-- thank you for stopping this.

 

[SeR_Cyclops]

great job but man you should have left one more post for a 505zoom intake manifold. it will be the best of all.... hands down.

EDIT: lol i cant read it says OEM in the title.... i fail!

 

[Matrix]

I have the stock fsde manifold but both systems (VTCS & VICS) have been removed. The chambers are also ported and slightly polished. I wonder how that compares to the PG intake manifold with air flow.

How's your power down low without the VICS?

 

[msp 2212]

they should sticky this perhaps cuz its very useful GREAT JOB

 

[magnumP5]

I imagine a VTCS/VICS-less stock manifold would perform similar to the 2000+ 626 IM w/o VTCS, maybe a little more low/middle power. The stock manifold (w/o VTCS) is actually very good for the type of driving most people do. Good power in the low-to-mid RPM. The 626 IM is all about top-end though. You definitely sacrifice low-end power but once I hit 4000 RPM with the 626 IM the car absolutely screams!

Can't wait for 505zoom's IM though. I'm on the list!

 

[ogsp5]

How's your power down low without the VICS?

The car really takes off at around 4500. and the boost holds steady at 8psi.

 

[KrayzieFox]

So this wasn't worthy enough of a stick huh?

 

[MSpeedFreak03]

^ sticky this mofo... (start an E-STRIKE if they dont)

 

[darocket]

let me butt in for minute.. i have a JDM Intake (i think) anyone need pic let me know.