andy2434

iTrader: (1)

I am the novice of all novices. I had never used a torque wrench, let alone seen one, until this mod. I was able to finish the MREV install by myself in about 2-1/2 hours.

Thinking back, now . . . I could have saved myself a bit of time by pre assembling the CCV with some RTV Silicone , disconnecting the intake tube, disconnecting and tucking away my GroundingGear wires the night before.

Good luck and have fun with your install.

undrgnd

iTrader: (2)

tony,

when is the website going to reflect the new mrev mod and various options?

GAaaAR

iTrader: (1)

What if you used the modified lower plenum with a 1/2" spacer, would that be better than using a 5/16 spacer?? Would there be even more gains in the topend????

atadlo

iTrader: (1)

Pardon my ignorance, but are there any other differences in design of the rev-up motors versus the 287 models that allow them to rev that high? i didnt think our motors were designed to fly much past 7K, but dang! i imagine the 7800 rpm results from a flash or program of some kind, i cant imagine the sweet sound of the vq at that rpm.

Diesel350

iTrader: (6)

No.

Nismo 350z

Would this be helpful if I put it on my 04 287 motor? Right now I have the Rev-up lower plenum and it provides gains on the top end but removes bottom end tq. Which would be a better setup?

Aced16

iTrader: (5)

i have a 287 03' motor, and i already have a spacer, so if i added the modified lower plenum would i see more HP at topend? also, do you sell just the modified lower plenums?

Hydrazine

iTrader: (53)

Yes, you will see more power at the topend but not much more. Clearance above runners 1&2 becomes more of an issue as the RPM increases hence the modified collector will provide more of an advantage to the REVUP engine.

If you don't have any other kind of plenum mod, then yes. It will provide good gains and be 100% stealth.

In fact, I may be able to modify your current collector by using a core swap to cut costs.

Here is what I have on the website so far.
Still needs work but the basic structure is finished. Not much longer.
http://www.designbyvani.com/tony/350Z.htm

Tony

thawk408

iTrader: (16)

Do you have a dyno of the modified collector compared to a nonmodified?

Hydrazine

iTrader: (53)

Yes, but probably not in the comparative way you are looking for. But you also don't need it to know the difference is there. Spacer heigth Vs HP has already been mapped on the 287 engine.

See the comparative plots in the tech section of my web page. 1/4" Vs 1/2". The 1/4" spacer produces very good gains in the high end even though it is only a 1/4" lift. There is only a 1.6 HP difference between the 1/4" and the 1/2" @ 6500 RPM. And if the delta is 1.6 HP at 6500 RPM the spread will only increase at 7K RPM.

I won't say how much the collectors are machined but the plot is a good example of Bernoulli's equation in effect.

thawk408

iTrader: (16)

So, if it adds any power it would add roughly 1-2hp? The spacer also inreases a larger volume then just machining down two runners I would think.

partshipperdave

iTrader: (17)

subscribing. Definitely great bang for the buck with this setup. Motordyne is an exceptional company, and Tony has done his homework and knows what he's doing, and is providing an exceptional product line! Stay tuned to our site!

Hydrazine

iTrader: (53)

When used with a spacer yes. When a spacer isn't used it will make about 5-7 HP.

More flow clearance is better, but recent MREV test data suggests more internal volume isn't isn't necessarily better. The 5/16" produced more than either the 1/2" spacer or none at all. So there are various different optimum points and compromises at work.

Modifying the collector is one way to approach the best of both.

Aced16

iTrader: (5)

Let me know i wouldnt mind helping ya out

partshipperdave

iTrader: (17)

See... I told you all to stay tuned to our site!

http://www.partshippers.com/index.ph...ain_page=index

We are proudly selling the complete line of Motordyne Plenum mods including this MREV featured here. We will be posting a Vendor Classified soon!

rolling

iTrader: (2)

so,
to do this mod complete what is total gain?
do you machine the parts like an exchange/ core program?
or how?
what is total cost?
thanks!!

rolling

iTrader: (2)

also does that mean if the 287 motor had the 300 plenem setup its hp would increase and tQ decrease?

Hydrazine

iTrader: (53)

Have you seen some of the MREV dyno plots?... That's about what it will do with a little less top end. If you use a spacer with it, it will have more top end.

The excahange/core program will only work with 287 engines. Otherwise you need a MREV.

Hydrazine

iTrader: (53)

Exactly. On the 287 engine, the 300 HP collector briefly produces about 10 HP at redline, but it loses a lot of area under the curve everywhere else.

rolling

iTrader: (2)

yea i peruzed yer site but allot is over my head...

ok ill look for MREV info thanks alot

cant wait to do first mod