Let me preface this before i get flamed. I DID read the "everything you need to know" sticky looking for answers to this question and thought i had it figured out, but I'm looking for some clarification:

In the sticky threads and in my searches I have found that the MREV plenum and spacer are only beneficial for REVUP motors. I have a non revup motor and a plenum spacer.

• I would not want a revup lower plenum because I already have the spacer so I wouldnt see further gains.
• The MREV plenum and spacer are only effective on revup motors
• then i find this thread MREV V2 independant testing on non-REVUP DE

So whats the story? The non-revup MREV V2 and my spacer would be beneficial or not?

 

from what i have read, on the non-revup, the spacer adds and the lower plenumn adds, and when added together, they add more (dont expect a 35hp gain from stock). the notes on the mrev2 and spacer means that anyone like me who has the revup needs both to get any gains what so ever

 

The mrev2 is the lower collector from a DE engine if my memory serves correct(quite dusty ill add) So no it would be stupid

 

See, right there is a contradiction. What is it? The MREV2 is a DE lower plenum modified. So I want mine modified essentially. Will the produce gains on top of the spacer I already have?

 

The MREV2 is a modified stock lower collector, and yes, the independent test results shown in your link are real.

Wired 24/7 was a MY350Z intake/exhaust forum moderator at the time when he did that test.

 

I've always been under the impression that the autos or pre-rev ups won't gain from the mr2-

In fact without a better exhaust I doubt you'd do better with any breather mod- except for the sound.

And without a proper tune I think the gains would be negligible anyway.

Not ragging on md or hydra by any stretch... But if you're running the non rev engine I think most agree the 5/16 spacer alone is your best bet based on performance versus cost.

 

please bear in mind that im getting all the bolt-ons done befoe i get it tuned so as to not have to retune it. people really discredits DEs and mine has made me nothing but happy.

Wired 24/7 showed big gains in torque and top end power gains. putting down 272 and change. I'd be happy with that. So is everybody who is saying "Nope." "Waste of money." "no gains on a DE" "just sell the car; **** motor" just saying that because gains arent as big as they'd want to see? maybe becuase they cant feel the butt dyno? maybe theyre unaware of my plans to tune?

 

Here are my own test results

This is just the MREV2 on a DE engine.

 

So that was just with the MREV2.

Combining that with my 3/8" spacer, HFC, Stillen Y-pipe, Megan single exit, and Stillen CAI, would it be worth it? or am I bolt-on'd to the max? I will tune when all my bolt-ons are done.

So tune with all those without the MREV2 vs tune with all those WITH the MREV2.... difference? gains? worth it?

 

You've got the main bolt-ons there, obviously things like ART pipes instead of the HFC's etc would help, but you can add the MREV2 and gain again before the tune.

That graph shown above by Hydrazine shows *just* the MREV2, nothing else, as you can see, it's *all* gains, even on our DE motors.
There are also graphs of the 5/16th spacer on it's own, the delta between the spacer and the MREV2 (if you already had one, then added the other) it always shows gains, obviously by differing amounts.


I already had the MD 5/16th, but went for the MREV2 as well before i got my tune - Don't forget, there is a core rebate on your DE lower to sweeten the deal

 

So the answer is "yes. MREV V2 and a plenum spacer benefits DEs. Not just solely rev-ups" which is what I found in my research.

 

Bingo.

Originally, the earlier MREV's didn't, but the MREV2 does.

 

Thank you, I really appreciate the help!

Anybody know where I can contact the motordyne vendor?

 

Go ahead and give them a call on 661-298-7555

Tell them i sent you if you like

 

Look at Hydrazine's signature

 

so is a MRev2+ a lower DE manifold with some port work?

 

^Essentially yes

 

I stand corrected. Back in my day I never went with it bc I was told I wouldn't make any gains. (Had a non rev)