This is on 2004.5 G35-MT.
Beside suspension and title mods, car have K&N drop-in filter, Z-tube and CrawfordZ cats.

Lower plenum installation was done while the car was strapped to dyno.
Coolant temperatures, Cipher showed as 87 C at the beginning of 3 pre-install pulls and 85 C at the beginning of 3 post-install pulls.



















Tomorrow I will try to post Cypher logs, have to go now.
One-step forward, two steps backward. Happy moding!

 

So this is just the MREV V2 lower plenum and the Iso-thermal gasket? Do you have a baseline number to pull against? I pulled higher whp numbers stock on that same dyno a week ago, but your torque is definitely about 20 ft-lbs higher at the wheels throughout the powerband (I hit 233wtq).

Edit - Crap, I can't read. I just saw from \/ 's post that it has the 1/2" Spacer. That one was actually shown to give some small losses up top. Still curious about pre-dyno numbers.

Edit #2 - Ok. I'm exhausted. I need some clarification as to what we are exactly looking at. I HOPE that its not pre and post pulls, because there is little to no difference....

 

so this is a dyno of the mrev2 w/ 1/2" spacer already installed?
blue is pre, and red is post?
looks same, pre and post.

 

Im confused? So no gains at all?

That is the flatest torque curve i have ever seen on the VQ! 250 lb-ft from 2500-5000RPM?

 

It's like I said in my thread...

Spacer adds very little to what the MREV 2 already does.

Best bang for your buck is just to get the mrev 2 now

 

Yes, but according to the title, he had the spacer already and added the MREV-2 to it. I was wondering about it being done the other way around when you mentioned that the spacer didn't add much to the MREV. Looks like if you have the spacer, the MREV doesn't add much to it. Yet another reason why I want to see someone dyno the MREV-2 with a Crawford plenum; if you already have the plenum (or a spacer), the MREV-2 might not do anything for you...

 

Good point, but let me give my opinion on the mrev2 + spacer or + plenum.

Mrev2 by itself is good. Spacer or crawford plenum by itself is good.

Put them together on stock ECU and you might not see much, but I have a strong feeling that you will make significant gains with engine management / tune.

Just my opinions, I cannot back it up but I plan to get a tune in the near future...since the tune will be on a dyno I will post results when I get it done.

 

Is that a picture of the MREV2 on the ground?? Or is that the stock lower collector?

 

to me the best bang for the buck is 1/2'' iso thermal still

 

Nah. I payed half as much as you for the MREV V2

 

when i added the mrev2 to my existing .25" md spacer, it added area under the curve, a bit w/hp and moreso w/tq. peak hp ^'d 3whp, and peak tq ^'d 6ftlb, but this is on an fi kit, and it leaned me out a bit.
i agree w/mike that tuning may be needed to get the most out of the modified upper/lower plenum combo.

 

Did you do an ECU reset between sets?


DaveO

 

Armitage, based on MRC-Dyno-Day posts you made nice numbers with your revup. I think that you should really get MREV-V2 with 5/8” spacer for even bigger numbers. Thanks for laugh with your edits, yes these are the best of 3 pulls each, pre and post.

Z BOY, yes to all three. I just wish that you posted your charts.

OCG35Coupe, that makes at least two of us confused. I was expecting some gain somewhere. My torque curve was always pretty much flat, but not like this. These Dyno Dynamics Dynamometers are news to me. I still prefer lower, down to earth, numbers and charts made by Dynojet (see this thread for my old charts).

 

DaveO, no, but battery was disconnected during the install.

 

Is it because he is using a 5/16" spacer + MREV-2 on a REVUP engine?
that's why he is seeing no gain betweeno spacer or spacer and MREV-2

 

So essentially what your saying is... you bought the MREV V2 and it essentially did nothing for you at all?

I can't believe there are NO gains anywhere. Makes no sense...

 

Originally, when all this MREV hooplah started, it was the 5/16" spacer and the MREV+ lower plenumthat made all the power on the Rev-Up. Motordyne tested the 1/2" spacer and saw that it actually lost more power up top.

 

why not

the mrev++ made around the same amount of power as just a regular spacer, and only a 2 or 3more hp when combined with a 5/16'' spacer.

 

Thanks for posting your results Dovla!
Your $100 rebate is on its way.

Many more dynos of various different setups are on the way. We'll see what they do and look for any trends on the mods it prefers.

 

Yeah. Thats pretty much what it has been so far.
I think we are going to see different results from different vehicles.

The same 5/16" spacer will make different HP results on different vehicles even though its exactly the same spacer.

Even A/F ratios in different cars differ when a 5/16" is installed. Many go up slightly. Many stay the same. And some actually go down while still making more power.

I won't be surprised to see the same with MREV-2.

Let the dynos roll in!