Blox Plenum Spacer

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Sentientbydesign
Posts: 6768
Joined: Wed Feb 02, 2005 8:21 am
Car: 03 Evo VIII - 330 AWHP
05 Subaru Legacy GT Stg 2 - Sold
05 G35 6MT Coupe - 278 WHP - Sold
04 WW Evo VIII - 302 AWHP - Ex's
96 I30 - Sold
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Blox Plenum Spacer

Postby Sentientbydesign » Sun Jun 01, 2008 5:25 pm

Type: Plenum Spacer

Brand: Blox

Models: Only one available. 5/8" Thermal Polymer.

Pros: When installing the spacer, I found that my plenum was very dirty, so my wife cleaned that while I installed the spacer. The combination of the spacer and cleaning resulted in a much cleaner throttle response with better power. I probably should have reset my ECU for comparison purposes, but I didn't until recently.

Cons: I'm too lazy to reinstall the engine cover

Bought at/Price: Custom Creations (Riverside, CA) $110 out the door (with heavy arguing and negotiation).

Comments: Per my conversation with the tech support, DO NOT apply RTV silicone or any other gasket making substance to the spacer. The thermal polymer will seat itself once it heat cycles. Plus it's somewhat flexible and makes a good seal. Also, because of the flexibility, the holes may not line up with the plenum. Just tweak the spacer a little hear and there before you tighten all of the bolts.

Supposedly this mod for my MY is best coupled with the MREV2 lower plenum which is actually a modified AT lower plenum.



User avatar
coolbratva
Posts: 19
Joined: Fri Sep 05, 2008 10:53 am
Car: 2004 G35

Re: Blox Plenum Spacer (Sentientbydesign)

Postby coolbratva » Sat Sep 06, 2008 7:18 pm

Was wondering if the brand of the plenum spacer matters? Its a piece of metal.

User avatar
Sentientbydesign
Posts: 6768
Joined: Wed Feb 02, 2005 8:21 am
Car: 03 Evo VIII - 330 AWHP
05 Subaru Legacy GT Stg 2 - Sold
05 G35 6MT Coupe - 278 WHP - Sold
04 WW Evo VIII - 302 AWHP - Ex's
96 I30 - Sold
Contact:

Re: Blox Plenum Spacer (coolbratva)

Postby Sentientbydesign » Sun Sep 07, 2008 5:58 am

There are 2 reasons not to go with the Blox spacer:

1) You have to modify the engine cover to fit (if that matters to you).

2) Finding a strut brace is going to be a pain in the rear, due to the extra height of the plenum.

Reasons to buy:

1) One of the largest spacers around.

2) Least expensive on market.

3) No need for silicone or any other gasket material.


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