I'm looking into getting the Motordyne MREV 2 Manifold and their 5/16 spacer as well. Anyone using the manifold? and if so...How much of a difference did you notice?

 

im using both right now.....you would really feel the power gain with a good tune !

 

+1

It's nothing crazy, but you can feel a difference. Here's mine after Spacer/MREV, HFC's, Exhaust, and a Tune:

 

The biggest difference of going with the MREV in addition to the spacer is felt on revup engines. But it helps some. They claim something like 16 horsepower from the two but from what I've seen its more like half that.

 

8 HP for $800 + tune does not seem like the biggest bang for my buck if u ask me Ive got the 04 350z none Revup so if u say its only have that on a revup, then i dont see spending over $1000 on all this for 8 hp lol

 

i used both on my riding mower. i can cut the yard in 5 minutes now.

 

Lmao kramy. Mrev2 is only beneficial for rev ups. Non rev des have the mrev2. Which is why we don't need it. Also tanman u don't wanna debate na power to cost ratio. Its not worth it unless u have a v8

 

I agree with you, but an exhaust cost about the same with similar results.

 

Data seems to be inconclusive on that, it has sparked my interest, already have the Crawford Plenum. "Should work" isnt enough to shell out the cash for it. Anyone running it on an '03? Another forum had a previous post saying it would be a waste, no data though. Think I have all other bolt on's you can get, sure mine needs a tune (no way total hp gains for all the mods add up, thats a fantasy) but if the MREV was worth is for the older motor, i would get it before the tune..

 

Here's my review of my modified non-revup plenum. The modifications were based on what MD does to their plenum and the MD plenum would probably perform better than mine. The MREV2 does make gains on the non-revup motors, even with a 5/16 spacer.

http://g35driver.com/forums/intake-e...er-plenum.html

 

^^ Nice. Thanks for posting

 

the bottom line is, if you're looking for power gains you're wasting your money with bolt ons. Sure you could spend 10k on a built na motor and notice a good bit of power increase but you could also spend 10k on a turbocharged stock block and KNOW that you are putting down some serious power.

 

True IF you're looking for large power gains. However, not all of us are in need of a seriously powerful car and some us prefer just to improve on the little things left behind.

I'd NEVER build an NA motor nor turbo an NA motor. I know way too many people that have done this and put a crazy amount of money into quality parts and a quality build only to constantly be fiddling with the car because so many issues pop up. The fact is, the further you get away from OEM, the harder it becomes to maintain OEM driveability. Automakers spend millions to get the tuning and driveability just perfect. When you start significantly modding motors, reliability and driveability goes out the window.

 

Of all the same day pre/post independent dynos performed on this manifold, the lowest power ever measured has been 15HP and 18TQ. And there have been many that dynod over 20HP and 30TQ.

MREV2 dyno by fini
https://my350z.com/forum/intake-exha...on-rev-up.html

Julian MRC MREV2 test
http://g35driver.com/forums/intake-e...ev-spacer.html

https://my350z.com/forum/attachments...comparison.jpg

Another mrev dyno 20hp and 30tq
https://my350z.com/forum/intake-exha...-and-30tq.html

https://my350z.com/forum/intake-exha...-manifold.html

https://my350z.com/forum/intake-exha...ml#post6935784

Zcar garage
https://my350z.com/forum/intake-exha...on-rev-up.html

Cosworth Vs MREV2 comparison
http://g35driver.com/forums/intake-e...lled-pics.html

06magnetic dyno plots
https://my350z.com/forum/intake-exha...-included.html

IF YOU DO A SAME DAY PRE/POST DYNO TEST ON A REVUP ENGINE, THE MREV2 IS GUARANTEED TO MAKE A MINIMUM OF 15HP AND 18TQ.

Let me know if you have any questions.
Tony

PS - The link below is a test on a NON-REVUP:

WIRED24/7 DYNO OF MREV2 ON A NON-REVUP ENGINE
https://my350z.com/forum/intake-exha...5-touring.html

 

i feel like an idiot Tony. I always thought there was no benefit of the mrev2 on a non rev

 

Hey Jay,

I must have posted the non-revup link about 50 times in this forum. Where you been?

 

lmao i have no idea Tony. i truly do feel like a moron. Iv had the mrev2 no power thought for years

 

non revup here also. 03 touring. I wonder what JUST the spacer does then.

Any ideas?

Is all of this "tuned" simply by resetting the ecu? How do you do a "tune" on a stock ECU?

 

I have a 04 350z will I need to replace my hood? and will I experience these "20hp" gains with a nonrevup ?

 

I believe you'll need a tune to see the actual benefits from it.

Although from what i've seen, the spacer on the non revup engine will only net you a few ponies between 4.5k and 6k revs, otherwise no change anywhere.

I'll note there is some torque gains lower down, but nothing i've seen so far with just the spacer without the MRev2.