Mrev 2
05-07-2006, 11:05 AM
#17
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don't jump on it too quick guys. I had my MREV+ installed but then I took it off.....cuz the car lost trememdous power at top end (after 6.2rmp the hp graph went straight down)....I felt losing some tq at low end, but top end my car is moving faster now...
05-07-2006, 03:05 PM
#18
Originally Posted by terryw
http://g35driver.com/forums/showthread.php?t=98224 someone just dynoed MREV 2 on his 2004.
Personally, i think most of the work is being done by the spacer. I think he did a dyno with the MREV+ on non-rev-up motor and it only shows like 2-3hp. I personally am not sold on this, i mean the spacer alone will make probably 10hp on the dynapack, it has been dyno 7-9hp on the dyno jet. So the net different from the machined lower, is minimal. The machining to me, only take off a thin layer, I personally can't see how this lil extra space can create much additional air. I'm no engineer, so I might not know what I'm talking about..ahaha
~Khoa
05-07-2006, 06:01 PM
#19
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spacer cannot add 13hp, and the dyno test tony provided was officially done by Nissan of america. There needs to be more data before anything is settled. for 03-04 i might not end up being a huge gain, but for 05-06 it really helps by giving back the power Mrev robs at the top end and then some.
05-07-2006, 09:28 PM
#20
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CHECK out this dynoed thread before jumping 
....
http://www.my350z.com/forum/showthread.php?t=189547
best bang fot the buck is 5/16" or 1/2" spacer and keep your lower collector....
....http://www.my350z.com/forum/showthread.php?t=189547
best bang fot the buck is 5/16" or 1/2" spacer and keep your lower collector
....
05-07-2006, 10:07 PM
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i posted a thread by about the same person on this forum. we will have to wait for more data on different combinations of setups before we can really say if its worth it.
05-07-2006, 10:08 PM
#23
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^^darn Lek, Truong would install my headers today if you did not come an pick him up hahaha...... he said he will do it next sunday, so you're better join us man......after headers in, I'll retune my car with the new set up ......
......
05-07-2006, 10:26 PM
#24
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Originally Posted by G-Tofu
^^darn Lek, Truong would install my headers today if you did not come an pick him up hahaha...... he said he will do it next sunday, so you're better join us man......after headers in, I'll retune my car with the new set up ......
......HAHAHAHA well sorry
next Sunday is def. on. He was sick anyways so it'd turn into a 10 hr job. You should have came to the CP meet and hung out with all of us.
05-07-2006, 10:45 PM
#25
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I urge everyone to not splurge money and wait for more data on mrev v2.
on 1 hand we have tony's chart which is done by Nissan of North America, you cant get more legit than that. On the other hand we have another independent data showing the lower plenum dosnt do anything for 03-04 nonrev up engine that already have a spacer.
we still dont know how it affects 05-06 especially when regular Mrev robs power up top and this seems to gain top end power. there should be more and more dyno data coming in as people get their new parts installed.
on 1 hand we have tony's chart which is done by Nissan of North America, you cant get more legit than that. On the other hand we have another independent data showing the lower plenum dosnt do anything for 03-04 nonrev up engine that already have a spacer.
we still dont know how it affects 05-06 especially when regular Mrev robs power up top and this seems to gain top end power. there should be more and more dyno data coming in as people get their new parts installed.
05-08-2006, 12:10 AM
#27
Just looked over some of Tony's chart on his site to see how much they dyno the space. The first 4 charts were from the sport z plenum dyno shoot and done on a dynapack. If you compare the 5/16" to stock, the delta is around 12-13HP (non-reve-up). Now I know people were not getting much gain with the spacer on the rev-up engine. Don't know why the old lower plenum works so well with the rev-up. I did notice the machining work done to the front port on the MREV when i installed Kunal's. It looked very minimal and hard for me to see how that would add much HP. I believe there are dyno or post somewhere that, just putting in the lower plenum (MREV) will give most of the gain, less 1-3 you would get from machined lower(MREV+). My two cent is, if you got non-rev-up, get the ISO spacer!! and call it a day. For rev-up, get MREV or simply buy lower plenum and spacer. Not sure I'm a believer in the machining, it seem very minimal to me. Tony makes good stuff and is a great guy, I'm just not sold on the machining..yet
~Khoa
~Khoa
Originally Posted by terryw
spacer cannot add 13hp, and the dyno test tony provided was officially done by Nissan of america. There needs to be more data before anything is settled. for 03-04 i might not end up being a huge gain, but for 05-06 it really helps by giving back the power Mrev robs at the top end and then some.
05-08-2006, 01:28 AM
#28
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^^^time will tell ..... I don't want to bash any product, but it doesn't look right to me after using the MREV+.....my car felt like shesh after 6RPM...even though 1st & 2nd gear has lots of tqs
..... I don't want to bash any product, but it doesn't look right to me after using the MREV+.....my car felt like shesh after 6RPM...even though 1st & 2nd gear has lots of tqs