Hi

I am about to buy the plenum spacer and not sure if i should go with basic or iso thermal.
I live in Salt Lake City, Utah and the winter here is cold
This is my daily driver so I will be driving it in snow as well.

Are the installs a lot different with basic and iso thermal.

BTW
What are the best tires I can get for my G35 Sedan for WINTER.
I have 17 inch rims on it and im not sure what the tire size is at this moment.

Thanks for help

Im so excited to be putting on a middy tomorrow, cant wait.
MODDING IS ADDICTIVE

 

One more thing.....

What is the difference between 5/16 and 1/2 plenum spacer.

 

About 3/16...look up dyno graphs and you will see the the 5/16 and 1/2 in are similar, but the 5/16 makes for more usable power.

I believe the 1/2 makes more peak power, but less under the curve.

 

Since you live in a cold climate make sure you get the copper adapter for the throttle body as well. That would be the copper/iso spacer from Motordyne. It will allow you to heat the TB so it doesn't freeze in the winter. The iso thermal gasket helps keep your plenum cooler in the heat which is a good idea as well.

 

Go with the copper iso, install is more work, but its not hard. Only slightly annoying thing is hooking up the coolant lines to the TB heater

 

Thanks for reply

 

I am looking to get the Motordyne spacer for my 2006 G35x. I live in northern NJ so I need the copper one. I had a question. Do you still install the coolant control valve when you install the throttle body heater??? Does it even come with the kit? I don't see it in the picture for any of the copper kits.
Thanks in advance.

 

no, it doesn't come with it in the kit

the copper TB gasket runs the heat to the TB all year long so no need for the CCV

 

is there a write-up for this install..? im thinking of ordering one as well,i noticed Z1 has the spacers on sale for 125 or 150 as of monday this week...any opinions on Z1's spacer..?

 

**** that man get the basic. i have a 1/2" basic in mine, and I live in MN!!!!! the 1/2" has a sick growl. been driving for 2 years with it, no problems!

 

im selling a polished basic spacer if ur interested

 

+1 on the sick growl i just recently install the 1/2 spacer but have one problem. The rubber gasket around oil fill cap actually hit the engine bay.



Did you remove the gasket or just leave it the way it was. I'm afraid it will be melted by the hot engine bay.

 

No worries. I have had my 5/16" in for several years now and it wont get that hot under the hood.

As for the TB heater, I thought the kit came with a small valve to turn the coolant on and off? Down here in South Texas, it doesn't get that cold anyway.

 

thanks Texasscout, i remove the rubber gasket anyway, it doesn't do help much. So it's out of sight, out of mind....

 

Thanks, I went with the copper spacer and very happy with it.