motordyne plenium spacer Q's

[dougiefresh7988]

just bought a 5/16 iso thermal plenium spacer for my 05 g35 . lookin for tips and suggestions when installing it . and on a meter of 1-10 ten being the hardest how hard is it to install and how involved. now ive done new plenium gaskets before but on a 01 pontiac grand prix. so just lookin for tips thanks all info is appreshated

Modified by dougiefresh7988 at 7:08 PM 6/5/2009
Modified by dougiefresh7988 at 7:13 PM 6/5/2009

[kalinvelev]

It's super easy. I just got mine and installed it in 30 min or so.

Watch this!http://www.youtube.com/watch?v=cX4hUGVC5gg

[joe603]

really not that hard...but let me make a suggestion.

Get the MREV2 lower plenum and do them at the same time. You will get fantastic results on your 05 (if it's a 6MT) with both.

If it's an auto, then the install should be straight forward. Make sure you have an inch-lbs torque wrench. I give it a 4 on difficulty.

Here is a link on the install:

http://forums.g35club.org/zerothread/341008

[kalinvelev]

Hey Joe do you know what the difference is for the Rev-up and Non Rev engines? Why couldn't you use MREv on '04 engines?

[dougiefresh7988]

kool thnaks for the info guys , because its sounds so easy i decided to buy the plenium also. new record for me in 1 weeks here is what i spent on my infiniti

4 toyo tirez, $950.00 intalled at dealertranny fluid flush $ 350.00 done by dealerperformance rotars and pads $450.00 intalled by meintake planium , and 5/16 spacer totaling $800.00 not yet installed

having fun doing donughts with my car priceless

[dougiefresh7988]

hey everyone back again lookin for a good choice for lowering springs for my g35 sedan got a set but they suck so im gonna get new ones i wanna lower it only like a 1 to 1.5 front and back just to give it a meaner stance and lower center of gravity but i dont wanna go super crazy just i little

any suggestions ? thansk alot ..

[toddnos]

tein s-tech lowering springs.i bought mine on ebay for under 160

[dougiefresh7988]

i was lookin on ebay and i found some awesome deals but alot of the kits are for rear wheel drive applications is there any diff. in the springs between rwd and awd because i have awd

[joe603]

Hey Joe do you know what the difference is for the Rev-up and Non Rev engines? Why couldn't you use MREv on '04 engines?

The Motordyne MREV2 is the lower plenum from 03-04 G35s that is ported and polished. The non-REVUP engines already have it! The REVUP engine is in the 05-07 coupe and 05-06 sedan (6MT). If you don't have the REVUP engine the best thing to add is the spacer alone.

There are a few significant changes in the REVUP engine to bump the HP.

Check out the G-Series FAQ for model year highlights. (link in my sig)

[kmckis1029]

not that bad of an install... torque wrench is a must!!! if you dont want CEL..

you will enjoy the new sound after about 4500 rpm... and boost in mid range power

[dougiefresh7988]

hi i have the 2005 infiniti g35x awd i dont know if i have the revup engine in my car it has alot of power but i dunno i knwo its a stupid question . all i can tell u is i have only an intake on it and at about 3000 rpm and above it sounds awesome and loud as hell but with stock exaust .

i bought the motordyne mrev2 plenium but if i already have it on my g i am gonna return it to motordyne . all info if greatly appreshated

thank everyone

[kmckis1029]

2005 g35x is not revup... just need a spacer.

[dougiefresh7988]

thanks for the info. cant believe i bought a 500$ plenium i dont even need

motordyne mrev2 plenium for sale. just bought for my 05 g35 but turns out it is stock. brand new still in box from factory will be for sale for 2 weeks from june 10 if anyone is interested in buying please e mail me at

[tollboothwilley]

A lot of G35X people use the H&R springs for the sedan. It will drop about 1.5" or so.

I think it looks great on the sedan at that height.

As for the MREV2, you would still get some performance gains from using this. Its just that it won't be as much as the REVUP motor. Because it is ported and polished you will probably pick up like 5-6 whp. You can sell the stock lower plenum for around $100. Its your call.

[joe603]

I think Motordyne will give you a core rebate/money with your plenum. The MREV2 is a non-revup plenum thats ported and polished.

[dougiefresh7988]

ok thansk for the info everyone guess i will use the plenium after all. The more horsepower the better right.. i will check out h&r for springs. i was lookin at a eibach pro- kit for my g35 they look like they are good but i will look at the h&r maybe i will get a better deal thanks again

[Guju Rider]

i think i got lost in your post about which G's would benefit from the Motordyne MREV2..so the 03-04 G's already have it, but the 05-06 G's would be better off with it?..or visa versa? i'm only asking because im in the market for a motordyne 5/16" spacer..
Modified by Guju Rider at 8:28 PM 1/24/2010

[joe603]

Motordyne uses the lower plenum from automatic transmission models on 03-04 G35s. The benefit is for 6MT (manual transmission) 05-06 G35s. The will see the most gains. You can use it on any 03-07 coupe or 03-06 sedan, but the gains will not be as great.

Check out their website for more details.

http://www.motordyneengineering.com/

[tollboothwilley]

The MREV2 is not ported..its just machined in specific areas. Not a real "polish" either...but smoothed out in some places.

Either way, the REVUP will make good gains with the MREV2.

I have my lower manifold machined like the MREV2 with a full polish and port matched to my intake collector. Its nice. Leaned me out a bit but i'll just adjust my tune. Good change for HP gains.