**AMS Product Release** AMS F1-I Intake Manifold

[Mark@AMS]

AMS F1-I Intake Manifold

IN STOCK READY TO SHIP!

The AMS EVO VIII/IX F1-I Intake Manifold was designed to outperform every 4G63 manifold available including our own VSR. We referenced many modern design examples and engineering studies to bring you the best intake manifold ever made for the EVO VIII/IX.


For the past 3 years the AMS VSR has been the standard to which all other manifolds were compared. For the F1-I the plan was simple, to take our already power potent VSR and make it even better! Designed and prototyped in house by our team of engineers the new AMS F1-I Intake Manifold now features cast aluminum construction for added strength. Casting this manifold also allowed us to optimize the output of the manifold with larger bell horns, larger plenum, and matched cylinder port angles.

In preliminary testing the plastic/fiberglass F1-I prototype was tested back to back against the AMS VSR. At only 15 pounds of boost the new design made an additional 15-17whp horsepower across the board! 5% gains were seen throughout the ENTIRE POWER BAND!

Features

• Cast aluminum construction for added strength
• CAD optimized tapered runners, dyno tested for maximum results
• Matched cylinder port angle
• Large bell horns and plenum
• Choice of throttle body bolt pattern

Includes

• AMS F1-I Intake Manifold
• Factory Mitsubishi throttle body and intake manifold gasket
• Stainless steel intake manifold support bracket
• Vacuum fittings
• Custom made dip stick tube
• All necessary hardware and detailed installation guide

Options

• Throttle body flange types: Stock Mitsubishi and Ford 4.6

Applications

• Mitsubishi Evolution 8, 9
• Fits all USDM, JDM and European Models

Please Note: Please indicate when ordering what throttle body you will run. If you want to run the 4.6 flange AMS recommends running the Boomba throttle body to keep stock like idle and drivability.

*Due to throttle body placement on the F1-I, the upper IC pipe may need to be modified. Proper throttle cable adjustment is needed to ensure 100% throttle opening. A throttle stop (available through AMS) may be needed for aftermarket throttle bodies.

Click Here to purchase.

[ineedspots]

Finalllyyyy

[ak47po]

Casting is kind of rough.

[Philthy748]

Congrats on finally getting this released - looking forward to seeing some dyno testing... I was holding out for this, but bought the Magnus due to timing... My EVO will be on the dyno next week if you're interested in a true independent back to back vs the Magnus...

[AutoMotoSports]

We have done testing vs the VSR and also vs the stock manifold. Here is a copy of that post:

Originally Posted by Chris@AMS

AMS F1-I intake makes huge gains, with almost no spool or torque lost!!!

After receiving a cast prototype of our new AMS F1-I manifold we were eager to get it on the dyno and prove that our research, development, and testing would produce yet anoter no-nonsense high quality product, that is consistent with the AMS name.

Our test car is Martins white evo which has the following modifications.

-AMS Race FMIC
-AMS Built 2.0/ aluminum
-AMS CNC race head
-AMS 850R turbo kit with .82 a/r housing
-AMS Turbo Back
-AEM EMS
-Precision 1200cc injectors
-MIL-spec throttle body

Particulars about the testing that are important

- ~27psi of boost
- VP c16 fuel
- Only change made was intake manifold
- Same throttle body, same everything else.
- Both Manifolds were port matched to the throttle body
- Neither manifold was port matched to the head

All conditions are the same in-between the runs, right down to the weather. The only difference that can be noted is in the boost pressure, in favor of the stock manifold dyno numbers. the stock intake manifold would not run under 28.1 lbs of boost at redline. With the AMS F1-I intake manifold boost would go as low as 27.3 lbs of boost at redline.

Using the above as a direct measure of efficiency alone, tells us that the F1-I intake manifold is much more efficient. Because of the fact the the boost will not go any lower on the stock intake manifold, it indicates a lack of efficiency, where basically, the turbo is producing more air than can currently be used by the motor. Because boost pressure is a measure of the airflow that is NOT entering the engine, in this case we can see that stock intake manifold is restricting our flow into the engine.

Another direct indicator of airflow and efficiency is the amount of fuel needed to maintain a consistent air/fuel ratio. This is illustrated below in injector pulsewidth.



And finally... the dyno results. Remember, the stock manifold benefits from an extra .75 lbs of boost at redline!!!



The tach drops out a little on that graph, so i Provided one vs speed as well, so the slight spool difference can be seen.




Overall, this manifold is VERY impressive and the setup is too!! This car produces SICK horsepower for only 27psi of boost!!!!!


[EDIT]

AMS VSR VS AMS F1-I intake manifold




EYE CANDY!!!!

[Evo a Mula]

finally out