Plenum Spacer Suggestions?

The G-Series Tuning Forum is the place to discuss G35/G37 performance modifications and mechanical repair.
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kalinvelev
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Car: 2004 Infiniti G35 Coupe 6MT

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Hi All, got my Stillen Pop Charger installed and looking into Plenum Spacers now. There are so manyso I can't make my mind. Any suggestions to what would work the best?04 G35 Coupe 6MT

Also is there a chip out there?


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johnparkyourcar
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Motordyne 5/16 spacers is the best bang for the buck.

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kalinvelev
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Car: 2004 Infiniti G35 Coupe 6MT

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That's what I was looking at. Is there a difference between the regular and the Thermal Spacers?

Thanks

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johnparkyourcar
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I think the only thing is the gaskets = denser air (colder air) into engine = more HP and the throttle body spacer

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kalinvelev
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Thanks!

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toddnos
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Blox is the most affordable.Motordyne is expensive...

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johnparkyourcar
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Vivek dynoed it and proved MD had better gains

Tampa G35 Sedan 6MT
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johnparkyourcar wrote:Vivek dynoed it and proved MD had better gains
But he only gained like 2 more HP and that is with his other mods...

The Blox is half the price...

I would buy the blox if money is tight... but if not then get the MD... They both are great.

I got the MD on ebay for 113 dollars. It was used but who cares...

DJ

tollboothwilley
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I went from the Blox 5/8" spacer to the MD 1/2" spacer. I picked up 4 HP and TQ on the dyno.


Guju Rider
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Car: 2004 Infiniti G35 Desert Platinum (Sedan)
Location: Tallahassee, Florida

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i see that MD has the basic spacer, the iso-thermal, and a copper one...which is typically the best one for your $?

tollboothwilley
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The basic spacer is just the plenum spacer...its the same one. The iso-thermal has an extra gasket that helps prevent heat soak into the plenum. It also comes with a coolant by-pass mod that you can switch on and off depending on the weather/season.

joe603
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Motordyne products are very high quality. The coolant by-pass is worth it in hot weather!

What it does is shut off the hot coolant flow to the throttle body, keeping it cooler. In the winter, coolant is needed to prevent frost build-up. Just don't forget to switch it!

localbrew
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Is there a recommended spacer for the 2007 G35 Sedan, I can't seem to find any.

Thanks!

tollboothwilley
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You have the HR motor on the 2007. I don't think they have an issue with less air getting to the front cylinders. I think they improved the design on the stock in 2007 (or with the HR motor)

localbrew
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Awesome, thanks!


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