Question about 1/2" ISO thermal spacer (Note: Big Picture)

F

FxFireball

Member
Location
Katy, Texas
Well guys just ordered my spacer on monday and comes in on saturday of this weekend and i want to know what oil i need to cover the one piece with 6 circles. Im just wondering so i can go out and buy all the neccessary need before it comes in

12isothermalplenumspacebr8.jpg
 
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you don't need the ISo if you live in TExas Fyi...it's designed for colder palces like northeast..where you still don't even need it. .......I don't think you need oil for that piece,. either. I may be wrong
 
No oil, this is your ISO or a gasket, I forget..its been awhile. Just place on, and put your plenum back on.

Then take your car around the block and enjoy your "new" FX. This will liven it up noticeably.
 
Guys, quick question:

I was on the MD site trying to figure out which spacer to get but there were like 28 different choices for the FX. Different materials, gold ones, copper ones, diamond studded ones, organically grown ones, etc etc.

Which is the best one to buy for a 08 FX35??
 
There are two sizes, 1/2 and 5/16. Then from there, 3 different versions, basic, ISO thermal, and copper iso thermal. and the ISO thermal works well in warmer climates, copper is for colder, so getting the ISO in texas is a good idea. since it involves when the weather is below like 50 degrees.

[FONT=&quot]What is the main difference between the BASIC PLENUM, ISO THERMAL PLENUM, AND COPPER ISO THERMAL PLENUM? What exactly is the difference between the 3? [/FONT]
[FONT=&quot]The Iso Thermal systems allow the plenum assembly to run much cooler than stock and are good for about 1-2 HP more than the basic spacers. [/FONT]
[FONT=&quot]The regular Iso Thermal is generally for warm climates like California , Texas and Florida where it may only occasionally go below freezing. The Copper Iso Thermal systems are set and forget and they are compatible with any climate hot or cold. [/FONT]
 
General consensus for FXer's is go with the 5/16. 5/16 is better for lower end torque. Our heavy vehicles benefit the best with this size. The 1/2 is better for upper range..like racing on the freeway like 350's or G's.

ISO is used in cold weather area's. Being in Chicago Pupp....you should definately get this option, along with the TB thermal.

Best one for Pupp:

350Z 5/16" Copper Iso Thermal plenum spacer
350Z 5/16" Copper Iso Thermal plenum spacer
z516clb4.jpg



​



The Motordyne Copper Iso Thermal plenum spacer adds 12HP-14HP and reduces the effect of power robbing heat soak by thermally isolating both the upper and lower plenum. Its 5/16" thickness provides the best overall performance and is fully compatible with your engine cover and strut bar.​



All Motordyne Iso Thermal systems keep your upper and lower plenum cooled without the risk of throttle body freezing when driving in cold weather.​



Use the Copper if it snows in your area.​


$ 299.00 </SPAN> ​
 
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toy4x said:
General consensus for FXer's is go with the 5/16. 5/16 is better for lower end torque. Our heavy vehicles benefit the best with this size. The 1/2 is better for upper range..like racing on the freeway like 350's or G's.

ISO is used in cold weather area's. Being in Chicago Pupp....you should definately get this option, along with the TB thermal.

Best one for Pupp:

350Z 5/16" Copper Iso Thermal plenum spacer
350Z 5/16" Copper Iso Thermal plenum spacer
z516clb4.jpg



​



The Motordyne Copper Iso Thermal plenum spacer adds 12HP-14HP and reduces the effect of power robbing heat soak by thermally isolating both the upper and lower plenum. Its 5/16" thickness provides the best overall performance and is fully compatible with your engine cover and strut bar.​



All Motordyne Iso Thermal systems keep your upper and lower plenum cooled without the risk of throttle body freezing when driving in cold weather.​



Use the Copper if it snows in your area.​



$ 299.00 </SPAN> ​
Click to expand...

Toy, thanks so much for that great explanation! I really appreciate it. :tup::tup:

JB and Stu, thank you both also. :tup:
 
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r u sure the 5/16th is better for low and the 1/2 is better for highs? I've ehard form those who have them that it adds in between at like 4 or 5 lol
 
i'm still rebounding from the whole GTspec combo right now.. but as soon as i do ISO will be the next Mod.. from what i heard on from the guys here its one of the easiest mod you can do to gain power. i'm in the east coast so i will ge the whole copper iso combo.
 
Ya ya, what you know, I was right. Check out the FAQ's on MD's site, they have alot of questions already answered, as well as dynos.
 
i've check the faq's on MD's Site and figured out that the ISO Thermal will probably be the best bet for the money and for the placer. Read that the Copper is more for colder placers and the regular iso thermal comes with a valve that you can open and close. If its under 55 degrees then it has to be closed or something but if its above 55 degrees then you have to open it or vice versa. But figured out that the choice i made was actually a really good choice. And now seeing 1/2" is higher end, a even better choice. Thanks for your help. I've just seen videos of people oiling the valve gasket and was wondering if we need it as well. Will go good with my Popcharger and z-tube :)
 
After reading a bit about the MD spacer on my350Z has anyone here felt they have LOST power after installing it?
 
from reading this thread, i'm almost convinced of ordering one for my fx :wub:. (copper 5/16... hm... )
 
Pupp said:
After reading a bit about the MD spacer on my350Z has anyone here felt they have LOST power after installing it?
Click to expand...

Not with mine. I opted for the 1/2 MD Spacer, and felt a noticeable difference. Could feel the difference more than after doing just z-tube and CAI mods. The engine screams now, too! :biggrin:
 
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