I have NISMO CAI, Cams, Headers, Cat Back Exhaust, Motordyne 5/16" PS and UR Pulley on a 2004 (287 hp) Z.

If I understand Motordyne's web site correctly, I believe that my plenum spacer essentially now gives me an MREV set-up. I plan to install the MREV lower plenum from Motordyne before I re-flash. I want advice on the following question...

What is the best possible induction for my setup? Everyone is telling me to change the NISMO CAI for a stock tube and JWT pop charger. Is that the best way to go or are there other tricks with "short ram"? All opinions appreciated please. My goal here is to re-flash once because it's not cheap.

Thanks!!

 

an intake is an intake. they have not shown to be any different in reality. if you paid the $250 for the Nismo CAI stick with it!...or you can convert it to a short-ram

 

iirc version 2 of the nismo cai gave power loss, some flaw with nissan design. not sure which version it was, mc350z chime in please.

 

kinda off topic, how could you tell the difference again for the V2 intake? just the maf housing?

 

You might want to consider the stock Z tube with a 2006 OEM airbox that incorporates the velocity stack. See the discussions in another thread. This setup works pretty well.

 

I checked the Motordyne website and exchanged e-mails with Tony. Unless I have completely misunderstood this he is stating that a 287 bhp engine with spacer essentially becomes an MREV engine and that the MREV lower plenum core exchange will work with this (my) combination and add more power. Perhaps a couple of other people could check this out independently. I can hardly believe it myself....

 

you can get an mrev plus which is a polished lower plenum but if you just buy the mrev plenum you will wind up with the same plenum you already have.

 

There are tons of discussions on similar topics, but our general school of thought here is that using a JWT pop charger with the stock intake tube is just as good as MOST intakes out there, (CAI or short ram alike).
we've all used JWT on our 350Zs here, and hae liked it. I've gonr through a few intake setups on my car, and settled with a JWT, and notice the same performance as every other setup i've had.
Especially when considering the money factor, the JWT can't be beat.

MREV kits include a lower plenum for the 287 engine, so unless you are a 2005 6spd track or 35th anniv., or a 2006 6spd, the MREV will not do anything extra for you over just the spacer, since that is the same plenum you already have.

Also, the MREV plus is not a fully polished lower plenum, it has a few small spots inside that are shaved down a minor amount, to help with airflow to the front cylinders.

On a side note, you can take your plenums to a metal polisher, and have them polished out, which will smooth out the airflow inside the plenum chamber. You may not notice much power increase by doing this, but it won't hurt either

 

good idea.

 

Wait for my dyno (probably Saturday or Monday) with the new MREV++, it is the (new) modified lower plenum from the 287hp engine. The MREV+ is the old modified lower plenum. The MREV (no +) is the stock lower plenum.

 

explain the difference between the + and the ++ again? what do you mean by "new"???

 

MREV : the collector from the 287hp engine
MREV+ : the collector from the 287hp engine, with some machine work done to it. It is modified.

MREV++ : starting from the MREV+, it is further machined and further modified. the MREV+ has been around for a while. The MREV++ is "new".