5/16 ISO Thermal motordyne spacer review
04-09-2007, 06:56 AM
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5/16 ISO Thermal motordyne spacer review
Got to drive the Z around after installing the 5/16 spacer a few weeks ago. I have an 03 with just the spacer and K&N drop in.
First impression was the exhaust idle was a little deeper, not a huge difference though. All rpm ranges seemed to have an extra boost that wasn't there previously. Its very noticeable. Nothing scientific , just by the seat of my pants. The biggest gain happens in the higher rpm ranges. Pulls like hell.
After driving around for an hour or two, I checked the plenum temp with my hand to see if it made a difference. It was noticeably cooler than normal. I could leave my hand on it when previously its too hot to touch.
For those people worried about the plenum gaskets leaking, I actually forgot to put in one bolt at the top of the plenum and it wasn't even leaking in that area.
Great product and definitely worth it!
First impression was the exhaust idle was a little deeper, not a huge difference though. All rpm ranges seemed to have an extra boost that wasn't there previously. Its very noticeable. Nothing scientific , just by the seat of my pants. The biggest gain happens in the higher rpm ranges. Pulls like hell.
After driving around for an hour or two, I checked the plenum temp with my hand to see if it made a difference. It was noticeably cooler than normal. I could leave my hand on it when previously its too hot to touch.
For those people worried about the plenum gaskets leaking, I actually forgot to put in one bolt at the top of the plenum and it wasn't even leaking in that area.
Great product and definitely worth it!
Last edited by sindir; 04-09-2007 at 11:32 AM.
04-10-2007, 02:31 AM
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Originally Posted by BaTMan_4
^ correction....MREV2 is not for the HR. There are no mods for the HR out yet.
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04-10-2007, 03:06 AM
#8
^correction.
MREV2 was meant for the rev-up motor (300hp, 6000rpm) engine but was found to have gains with the non-rev-up (287hp, 6600rpm). There are no mods available for the VQ35HR motor yet (306hp, 7500rpm).
When MD said "high rev engine" they meant the Rev-up motor. If they already have a spacer for the HR motor, then DAMN they are GOOD.
MREV2 was meant for the rev-up motor (300hp, 6000rpm) engine but was found to have gains with the non-rev-up (287hp, 6600rpm). There are no mods available for the VQ35HR motor yet (306hp, 7500rpm).
When MD said "high rev engine" they meant the Rev-up motor. If they already have a spacer for the HR motor, then DAMN they are GOOD.
04-10-2007, 07:18 AM
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Originally Posted by MUZZY
^ UMMM maybe this will clear things up HIGH REV and REV UP are 2 different motors in the Z thats probly y u are picking each other
the MREV is for "rev-up" the HR motor is new and has nothing yet that I know of
the MREV is for "rev-up" the HR motor is new and has nothing yet that I know of
04-10-2007, 08:27 AM
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Originally Posted by MUZZY
^ UMMM maybe this will clear things up HIGH REV and REV UP are 2 different motors in the Z thats probly y u are picking each other
the MREV is for "rev-up" the HR motor is new and has nothing yet that I know of
the MREV is for "rev-up" the HR motor is new and has nothing yet that I know of
04-10-2007, 08:39 AM
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correct me if im wrong, i think the REV-UP motors are from the '05-'06 Z. and the NON REV-UP are from the '03-'04...and the REV-UP motor has less torque compare to the NON REV-UP engine but the REV-UP motor has more power.
04-17-2007, 03:18 PM
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Originally Posted by whitenizmo
did anyone install the 5/16 ISO themself? Is there a whp gain in number? How much you guys found it for? I am thinking to get one...
i didn 't feel any diff thoo,didn't gain 10-15 whp...
so i sold it and now i regret, coz now my plenum is very hot, i can't even touch it after a run.
a friend installed it on his Z last week (N/A), i'll ask him about the results!
04-17-2007, 03:57 PM
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Its very stealth. You can't even tell its installed in most cases unless you look very carefully. I have the crawford plenum, which ahs almost the same gains at the 5/16ths and it definately makes a difference.
04-20-2007, 11:07 AM
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Originally Posted by whitenizmo
did anyone install the 5/16 ISO themself? Is there a whp gain in number? How much you guys found it for? I am thinking to get one...
Originally Posted by Risky_Business
I know it's hidden but just how stealth is it? Is there any visual indication of installation whatsoever?
Just curious.
Just curious.
The only non-stock look to it are the new bolts really, cause they're a different colour, and possible the spacer underneath the strut bar. other than that, you really can't tell that the thing is here.