MREV2 + 5/16" spacer reliability?
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I've been taking an interest lately in going with the MREV2 and 5/16" spacer for my REVUP Z, and have been browsing many threads. The dynos speak for themselves, but I wanted to see if anyone has had any longer term mileage on this mod, and as far and daily usage or reliability issues. My Z is a year-round daily driver so i want to make sure I wont have any issues down the road with this. I dont plan on doing any tuning, so also i hope this wont throw my AFR's way out of whack. Thanks.
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Originally Posted by Wired 24/7
couldn't really be more reliable. worst thing that could happen is a screw gets loose, check them after 30k miles if you are worried.
....exactly. There is nothing to go wrong - no moving parts - all the parts do is create more space for air that the engine can call upon
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i'm going on 2 years with my mrev2 and 5/16" spacer on my revup G. daily driver (including winters)
never had any problems in the winter. what kind of problems have you heard about this mod and winter?
never had any problems in the winter. what kind of problems have you heard about this mod and winter?
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Originally Posted by Art Vandaleigh
Another question... I've noticed some posts about possible issues with this and cold weather. Any winter Z drivers with this can comment?
If you have the regular Iso Thermal version, just be sure to open the coolant control valve when it gets really cold outside.
The purpose of opening the CCV is to keep the throttle body heated so it won't get iced up and frozen to the open position. The throtle body getting frozen open could cause stalling when you let off the gas.
So that is the reason for opening the CCV in cold weather.
In a place like So. Cal., Texas, Florida, Hawaii and similar, freezing is almost non-existant. So you can use the regular Iso Thermal kit. And in the rare occasion when it does get freezing cold, just open the valve.
But if you live in an area where it can get really cold... alot... Colorado, Montana, Chicago, NY, Alaska, Canada, etc. I suggest getting the Copper Iso Thermal version.
The copper costs a little more, but its all automatic and fool proof. Install it and forget it. The upper and lower plenum assembly runs cooler and the throttle body will never freeze up.
Last edited by Hydrazine; 05-18-2008 at 05:45 PM.
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Originally Posted by Art Vandaleigh
Another question... I've noticed some posts about possible issues with this and cold weather. Any winter Z drivers with this can comment?
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Originally Posted by get1
....exactly. There is nothing to go wrong - no moving parts - all the parts do is create more space for air that the engine can call upon![Smilie](https://my350z.com/forum/images/smilies/smile.gif)
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Originally Posted by Hydrazine
There are no issues with winter.
If you have the regular Iso Thermal version, just be sure to open the coolant control valve when it gets really cold outside.
The purpose of opening the CCV is to keep the throttle body heated so it won't get iced up and frozen to the open position. The throtle body getting frozen open could cause stalling when you let off the gas.
So that is the reason for opening the CCV in cold weather.
In a place like So. Cal., Texas, Florida, Hawaii and similar, freezing is almost non-existant. So you can use the regular Iso Thermal kit. And in the rare occasion when it does get freezing cold, just open the valve.
But if you live in an area where it can get really cold... alot... Colorado, Montana, Chicago, NY, Alaska, Canada, etc. I suggest getting the Copper Iso Thermal version.
The copper costs a little more, but its all automatic and fool proof. Install it and forget it. The upper and lower plenum assembly runs cooler and the throttle body will never freeze up.
If you have the regular Iso Thermal version, just be sure to open the coolant control valve when it gets really cold outside.
The purpose of opening the CCV is to keep the throttle body heated so it won't get iced up and frozen to the open position. The throtle body getting frozen open could cause stalling when you let off the gas.
So that is the reason for opening the CCV in cold weather.
In a place like So. Cal., Texas, Florida, Hawaii and similar, freezing is almost non-existant. So you can use the regular Iso Thermal kit. And in the rare occasion when it does get freezing cold, just open the valve.
But if you live in an area where it can get really cold... alot... Colorado, Montana, Chicago, NY, Alaska, Canada, etc. I suggest getting the Copper Iso Thermal version.
The copper costs a little more, but its all automatic and fool proof. Install it and forget it. The upper and lower plenum assembly runs cooler and the throttle body will never freeze up.
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Originally Posted by davidv
The unreliable part is the installer. Members have a habit of putting a lot of muscle into tiny bolts and break stuff.
i use the breakbar to tight things up with Little extra hand Trq ,is that over ? and how can i know when its over but before i break it ?
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Originally Posted by Darkness75
i`m looking foreword to receive my 5/16" MD spacer ,and hear that alot (do not over tighten things up) ,,,what dose that mean ?
i use the breakbar to tight things up with Little extra hand Trq ,is that over ? and how can i know when its over but before i break it ?
i use the breakbar to tight things up with Little extra hand Trq ,is that over ? and how can i know when its over but before i break it ?
Last edited by CSF; 06-30-2008 at 02:26 AM.
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Originally Posted by 350zbra
So if you get the iso copper you don't need the control valve, why is that?
with the copper iso, you get a copper plate with a rubber side to isolate the hot coolant from the plenum. so you always have the coolant running to the throttle body but not transferring heat to the plenum.