Review: Motordyne M370 Manifold w/ Comparisons
 

First off, I want to thank Tony and Motordyne for everything they did to get the manifold out to me in a timely manner. I was fortunate enough to get it shipped from California to Maryland within 3 days.

Now, onto the good stuff! I wanted to personally see this manifold in action and see what the gains were going to be for my current mod list (Fast Intentions exhaust, Fast Intention Res Test Pipes, Stillen G3 Intakes, and Motordyne's Manifold). I had a custom UpRev tune from the get-go from a couple months prior, so I figured the gains were minimal in the beginning, but I still wanted to bite the bullet and see what the capabilities of this plenum were.

Broken down are multiple sheets to give you an idea of what type of gains were seen before we started tuning the vehicle and after (now remember, the car came in with a custom tune already).

This first sheet describes the Horsepower / Torque gains through 4 different runs. Runfile 001, 002 are both baseline pulls when we slapped the car on the dyno to see what it put down in comparison to after the plenum was installed.

Runfile 001 - Baseline
Runfile 002 - Baseline

Runfile 010 - Motordyne M370 w/ 12.8 Air/Fuel ratio
Runfile 011 -Motordyne M370 w/ 13.0 Air/Fuel ratio

http://i48.photobucket.com/albums/f2...comparison.jpg

The car seems to really like the extra fuel. We gained an extra 2whp just making the minor change of adding fuel closer to redline to get the car as close to top-end as possible. With comparing run 002, and 010 the gains were pretty good. We saw positives gains all throughout the powerband except for 7400 - redline (lost 1 - 2whp, no biggie).

From 4500 - 5500 - there were gains of 12whp, and 12ft-lbs of torque

From 5500 - 6200 4whp and 6ft-lbs

From 6300 - 6900 6whp and 7 ft-lbs

The rest were minimal gains with a minor loss at redline. The car had a pretty good amount of heatsoak since were making consistent runs to change minor things like timing and fuel so the torque would have been even higher if we let the car cool down for 15 minutes (it was getting late).

Here are run graph comparisons that Tony was ever so kind to export:

http://i48.photobucket.com/albums/f2.../3AllPower.gif
http://i48.photobucket.com/albums/f2...4AllTorque.gif
http://i48.photobucket.com/albums/f2...westM370HP.gif
http://i48.photobucket.com/albums/f2...westM370TQ.gif
http://i48.photobucket.com/albums/f2...Deltapower.gif
http://i48.photobucket.com/albums/f2...7/8DeltaTQ.gif

We didn't really do consistent runs at the end because it was getting late, so I didn't have the time to let the ECU fully adjust to the new fuel curves. I can tell you though that my butt dyno feels the kick, I know for a fact that isn't a placebo effect either.

All in all I'm really happy with the outcome. I'm glad it made more power over-top my other mods and tune. I would definitely buy this all over again! :happydance:

Nice. Yup. I de felt a kick when i put mine on too. Just feels alot happier to rev up from 3k+

i agree; i just LOVE the mid range now. had some more fun today with my oldest daughter in tow! she told her mother on me as I was driving 'fun'.

Thank you for the dyno testing and review Staples!

What gear did you dyno at?
Great results ! Definitely changed my mind about the intake man.

Absolutely, it was well worth it.

4th gear, seems to be the closest 1:1

Thanks!

awesome review!

Good stuff, your results were very similar to mine

Well that's assuring. :tiphat:

Is it an OEM intake manifold that is ported? What is changed to free up the extra power?

Longer intake runners.

It's an HR manifold (3.5 engine) that's been tweaked to fit on the new engines. Bolts relocated, etc.

At least that's what I've gathered? lol

Sorry, I guess I wasn't clear. Is this a completely new piece, or a modified OEM unit?

Just looking for a little clarification as to what it acutally is.



Have you guys tried to port these?

its a modified OEM unit for VQ35HR (350z 2007+ engine and G35 2nd gen engine)

What Motordyne did is they did alot of R&D to fit this unit to our new engine..

and the result is OEM unit manifold from VQ35HR makes more power than our OEM manifold.

hope this answers ur question

Sure, that does!

I guess this would be to the Motordyne guys, what makes this intake manifold better than the VQ37 piece? I see someone mentioned longer intake runners, but is the porting and all the same?