We voluntered to do an independant test of the Motordyne Mrev and spacer combo, to verify that Tony's products are legitimate and work as described. We had a customer whom Tony sent him the Mrev and Spacer for absolutely FREE for us to do some back to back testing on.

The customer arrived at our shop and we proceeded to strap his car on the dyno and allow it to cool down prior to doing a baseline DYNO. His car was a 2006 350Z with a REV UP motor equiped only with a Nismo Cat back exhaust.
All Dyno runs were done until 6999RPM's or close to.
Below are the reults of the test.




Baseline: purple colorTemp 50.7
Humidity 26%
Barometer 30.42 HG
Plenum temp 78F

258whp

We proceeded to install the Mrev lower plenum from Motordyne and allow the car to cool for about 30 minutes thereafter install, and did a second set of dyno pulls.

Mrev install: Green color
Temp 51.8
Humidity 26%
Barometer 30.42
Plenum temp 68

258 whp

We then recorded the results and noted a signifigant increase in HP and TQ throughout the entire power band until about 5800rpms, where the NEW peak HP was and then the power began to fall off. What it appeared to have done is shift the PEAK HP level farther down in the powerband and create lots of usable HP and TQ in the lower RPM range.
we then proceeded to install the 5/16" basic spacer, and do a final set of dyno pulls.
Mrev+spacer : Blue Color
Temp 52.2
Humidity 26%
Barometer 30.42
Plenum temp 74F

263 WHP

On the final Dyno runs we noted that starting around
5600RPM's the HP and TQ levels began to pick back up to the baseline, while maintaining the previous increase in the lower RPM range we gained from the MREV. We noted a slight dip in power from 6300-6500rpms, but nothing signifigant.

The final outcome, was that Tony's product delivers alot of USABLE HP that is located within the daily drivable range, and not just a few HP increase at peak HP at 6000rpms. The things do work and work well, we used to be quite sceptical of Motordyne products a while back, until Tony proved his products over and over with us for the past 2 years!! Bottom line, Motordyne Mrev and plenum spacer do work and are a worthwhile bang for the buck!!
All Dyno numbers were DYNO JET corrected for reference purpose, Our DYNO consistantly corrects within 1% of the local DYNO JET (13%)

 

That looks good. I can't wait to get mine from Tony.

 

Thank you, big thanks to Tony!!

 

very cool congrats Tony on some more believers

 

Thanks Julian and everyone.
I'm happy to be able to make useable NA power for the VQ community.

Even though I've seen these results over and over, every time I see it, I can't help but wonder how Nissan/Infiniti missed so much area under the curve.

Its not just better for daily driving, its better in any race application. The power plateu average is not only higher, its much wider. The plateu is nearly doubled in width.

If I was working in the lab at Nissan, I know I would have nailed this one.

 

Very nice results. I'm assuming the peak HP gain was 5whp. What were the biggest gains though throughout the powerband?

Anywhere near the advertised 15whp-18tq?

 

Very Nice,
i have to ask this, though i remember reading about it long ago, maybe the results changed though...

Tony, i have an 05 AT (non-revup) w/ the 1/2" spacer and Iso gasket only, is this the best (most worthwhile) setup?

 

Under the curve, there seems to be a ~20 WHP increase @ many parts of the powerband after 3800 RPM & ~15 TQ increase @ 4200 RPM. Great results.

Any AFR graphs? I bet there's more power to squeze out from a tune.

.

 

what is done to the stock lower plenum by motordyne?

 

some machining for increase flow

 

I was told that its the same lower plenum off a 03-04 non rev.. so for 03-04 u would just need the spacer not both..

 

Looks great. I'll be the first one to admit that I haven't kept up with these new Plenum since Mrev+. I have a Revup and I have the Mrev+ and a spacer when I was NA and I noticed the difference and even all my friends who did the some test driving.

I'm just curious how Mrev2 is different from Mrev+ since the power band look almost the same with a spacer. By the way, with my Single turbo, my power also dropped after 6000+rpm so I'm not sure if it was the plenum or my Turbo is running out of gas.

 

Well the MREV2 is a modified lower plenum that works on RevUp's only (since it's from a non-RevUp, why would it work on non-RevUp motors right...).

As for the MREV+, I wasn't around in the early days so I'm not 100%. I do believe it was just a modified lower collector specifically for non-RevUps.



I am curious to see what the STS kit will do with my breather mods as I do not plan on removing any of them when I put the kit on. Hopefully I'll see some dirty numbers but only time will tell.

 

Back then Spacers only help non-revup Engine. As far as I know Mrev does work for Revup but only if it is combined with a spacer. Mrev+ however does help a little on the top end since runner 1 and 2 is slightly shaved for better flow. Either way the dyno of the Mrev+ and Mrev2 look the same where power band is shifted lower and dies after 6000rpm. Not a bad trade IMO

 

The new changes made to the MREV2 actually increases the top end.

And its not even a trade. The average power in any gear at any shift point is greater.