MACE 25mm Manifold spacer/ insulator to suit LLT

[MACE_ENG]

Give your LLT that torque kick it deserves today, with a 25mm manifold insulator

[SSTREETKING]

Originally Posted by MACE_ENG

Give your LLT that torque kick it deserves today, with a 25mm manifold insulator

Its more like a 100 yard field goal torque

[MACE_ENG]

Originally Posted by SSTREETKING

Its more like a 100 yard field goal torque

That's a nice way of putting it

[Outlaw_Nation]

which one works with the VR

[MACE_ENG]

Originally Posted by Outlaw_Nation

which one works with the VR

Any of them. Worse case though, the horn on the VR needs to be trimmed a little to support the 25mm manifold insulator.

If you have anymore questions please don't hesitate to ask.

Kindest Regards,
Steve

[gahammerle]

I MACEd my Camaro today. Definitely noticed better accelaration and after a 30 minute drive, the manifold was cool enough to rest my hand on.

Hats-off to those who suggested the swivel head ratcheting 13mm wrench. That made a world of difference.

[MACE_ENG]

Originally Posted by gahammerle

I MACEd my Camaro today. Definitely noticed better accelaration and after a 30 minute drive, the manifold was cool enough to rest my hand on.

Hats-off to those who suggested the swivel head ratcheting 13mm wrench. That made a world of difference.

Ah excellent, this is what we like to here

That swiveling head does make a world of difference, we probably should include it on our fitting instructions TBH

[derek19]

Originally Posted by MACE_ENG

Any of them. Worse case though, the horn on the VR needs to be trimmed a little to support the 25mm manifold insulator.

If you have anymore questions please don't hesitate to ask.

Kindest Regards,
Steve

Awesome. Luckily I have two VR horns to get it right

[Synerbee]

I just ordered and will install with my Vararam

[MACE_ENG]

Originally Posted by derek19

Awesome. Luckily I have two VR horns to get it right

You shouldn't need to use both of the horns, unless you're tackling the job like this before or during the procedure. After is fine though LOL

Originally Posted by Synerbee

I just ordered and will install with my Vararam

Fortunately, worse case you'll have to trim back the supplied horn a little

[derek19]

Just placed my order for the 25mm insulator & plenum spacer

[MACE_ENG]

Originally Posted by derek19

Just placed my order for the 25mm insulator & plenum spacer

Thanks for your purchase Derek,

We'll be able to get these parts out to you tomorrow

Best Regards,
Team MACE

[derek19]

Originally Posted by MACE_ENG

Thanks for your purchase Derek,

We'll be able to get these parts out to you tomorrow

Best Regards,
Team MACE

Awesome. I'm gonna try and get a dyno this week with just my intake and then with the spacers. How many miles should I put in before dynoing with the spacers?

[Synerbee]

I can't wait for my insulator to arrive!!

[Sleez]

received mine today, started the tear down yesterday, follow along here; http://www.camaro5.com/forums/showthread.php?t=227224

[MACE_ENG]

Originally Posted by derek19

Awesome. I'm gonna try and get a dyno this week with just my intake and then with the spacers. How many miles should I put in before dynoing with the spacers?

100miles will be fine. Please let us know how it all goes

Originally Posted by Synerbee

I can't wait for my insulator to arrive!!

It will be worth the wait

Originally Posted by Sleez

received mine today, started the tear down yesterday, follow along here; http://www.camaro5.com/forums/showthread.php?t=227224

That's some real fine progress there

[Sleez]

all together and working great, thanks!!!

[camaro2rs]

Originally Posted by Sleez

all together and working great, thanks!!!

u used 2 gaskets right?

[Sleez]

yep!!

thread link at post #40

[MACE_ENG]

Looks good

[Sleez]

man, after getting the vararam installed yesterday, i opened her up after about 35 miles, and on ramps are awesome!!! really feels great!! almost like it's under boost!!

[MACE_ENG]

Originally Posted by Sleez

man, after getting the vararam installed yesterday, i opened her up after about 35 miles, and on ramps are awesome!!! really feels great!! almost like it's under boost!!

Excellent this is what we like to hear

[MACE_ENG]

Just to recap for people sitting on the fence as to what spacer thickness to go

Originally Posted by MACE_ENG

As noted, the main reason the spacers work is not so much that they keep they manifold cool (which they certainly do) but is the fact that change the savaging properties of the manifold. In that the manifold is working more efficiently base on the engine's operating limits. This is based on Helmholtz resonance principle.

To put things into perspective, they could be made out of aluminum and still reel off similar figures on a dyno. Sure repeatability and power consistence on the other hand would fall but that is a different characteristic which is certainly influenced by material properties (thermal conductivity) of the spacer.insulator.

As for what size spacer? We have 3 sizes to give people options (6,12 and 25mm), primarily based on fitment consideration for various firewall, bonnet, intake constraints.

Thickness of a spacer/insulator with regards to runner length, is usually directly proportional to the gains down low, which is inversely proportional to the top end. Generally the latter isn't an issue at all, unless you plan on increasing the factory rev limit or consistently spending your time upper RPM band for competition work or fixated about peak power figures.

If your car is a daily driver, predominately spending most of your time in the lower to mid rev range then you would probably want to consider running the largest spacer/insulator you can.

Understandably we can be seen as being biased (however we do sell three different sizes), but the physics indicates that "optimal" lower RPM manifold scavenging is achieved with longer runner, while the inverse is true with short runners. Both with the same diameter runners of course

Hope this helps
Steve

This is also confirmed by the impartial testing done previously

http://camaro5.com/forums/showthread.php?t=212430

[MACE_ENG]

Installation and performance feedback about our 25mm spacer

http://camaro5.com/forums/showthread.php?t=233176

Notice that the user notices the performance gains within 10miles of driving

[MACE_ENG]

If you're not insulated you don't know what you're missing out on