Plenum Spacer for your LLT

[JohnZ]

I can't wait. Maybe a noon question, but what does KR mean?

[formare]

I was thinking exactly as you stated. The spacer may compensate for the VRAMs behavior to speed the air.

It would be interesting to see what the spacer will do on non VRAM equiped cars.
As I don't have a VRAM intake, I'm thinking the gains could be different than VRAM equiped cars.

Its a bit like filling a wash bucket. With the water nozzle off the hose the water doesn't seem to have much force but fills the bucket much faster than when the nozzle is on and set to jet spray lots of force less water. Ram air is kinda like putting a nozel on the hose and expecting more air, no?

Originally Posted by hapisok

I think one of the issues with paring it with the black ice has to do with the OEM bolt length. I could be mistaken, but I believe you would need longer manifold bolts. And that is why he referenced having bolt kits available soon.

Like jay said, it's about volume and air distribution. The ideal IM pressure would be equal to atmospheric pressure, slowing the air down within the plenum is how you achieve "near atmospheric pressure". The faster air moves, the lower the pressure. But using the velocity from a tuned CAI will help by shoving more air in due to its momentum. The more air that is readily available, the better your throttle response and additionallly the low end TQ.

[rtcat600man]

Sounds like another mod for all of us to keep increasing more HP and TQ.

Please send me a PM for price and shipping to 48348

[TJ91]

Hope this works well for Vmax isolator and VR intake!
Awesome Mace. Keep em coming!

[Elykson]

Pm a price with shipping to 60070 please.

[bmorecam]

I guess the cat's out the bag now huh

To properly install this 12mm plenum spacer you will need four m8-1.25, 160mm bolts for the center. The old bolt for the rear and for the very front will still work fine. New plenum cover bolts also need to be changed to longer bolts. I can't remember what was the exact length right now off my head but the factory bolt size is M6-1, so you will need a bolt that is at least 10mm longer from factory length. You can actually find the cover bolts at home depot but the longer manifold bolts probably need to be ordered. I got 4 from texas fasteners for 13 bucks shipped.

The plenum spacer work well. You won't be like WOW!! as you have with the insulators but it will definitely help with better air distribution to all six cylinders and create more volume helping with stagnet air. After I installed the spacer, my kr count on part throttle with 93 octane went from around 3 to zero!! much was cut down on WOT too but not gone completely. I actually had to do few logs for vince just to be sure that this was really happening . I even thought he was sending me tune files with the knock senor desensitized LOL.

I just took a bunch of pics but I am having trouble loading to my net book right now Once I get this straight I will post plenty of pics for you guys. I also have a dyno coming up with vince next week so I plan to dyno the plenum spacer at that time also.

Stay put

[hapisok]

there have been a few discussions on the effects of ram air already. basically what it comes down to is that it doesn't work for autos because we move to slow to benefit from the positive pressure needed to create the supercharged effect. vararam draws in fresh air from outside the engine bay and utilizes velocity to push more air into the IM, its a straight shot with minimal bends which keeps the air flowing efficiently and fast. i understand your analogy to the water bucket and ram air. just wanted to let you know that ram air for vehicle applications is surrounded by a cloud of mistery. i don't think its the correct terminology for the application. i agree that there could possibly be bigger gains from a vararam equipped setup vs AEM or Injen, but that's to be expected.

[bmorecam]

For guys that's worried about using this with vararam intake
What make it even more interesting is that I am running vararam in conjunction with the 25mm insulator and 12mm plenum spacer. now for anyone worried about if it will work with vararam you have to first understand what is vararam trying to accomplish with their ram design. Out of vararams own mouth...The V-6 Camaro unit is unique in that it is designed around the V-6engines cross ram
intake manifold flow architecture and its need for maximum plenum volume. The cross ram design that our factory manifold already incorporate is there to shoot down the intake air down into each cylinder providing that "ram effect", velocity, and the reason why our manifold design is called "cross ram design" The more air we can cramp up the plenum with, the more volume of air that can get drawn down to each cylinder. Now increase the plenum containment and this mean what vararam originally designed for can do so even more effectively. So if you are a vararam user, I believe the effect of raising the plenum volume will even have a greater impact Now I;m not going to sit here and say by doing this we are going to gain 100hp lol but there are many advantage such as equal air distribution, less dead air, more volume of air moving, and etc.etc..

Discuss

[Mach]

Well said^^^^^

[10RsCamaro]

Originally Posted by Mach

Well said^^^^^

+1

[Kmorpheus]

This would probably force me to lose my engine cover.

[10RsCamaro]

Originally Posted by Kmorpheus

This would probably force me to lose my engine cover.

I threw that thing in my closet a long time ago!

[MACE_ENG]

Originally Posted by Kmorpheus

This would probably force me to lose my engine cover.

Having looked at your avatar pic, I've kind of cringed at the prospect of you taking that cover off to support these mods :(

I suppose you can put it up in the workshop or pool room, where it would be safer I guess

Originally Posted by 10RsCamaro

I threw that thing in my closet a long time ago!

I'd definitely be one of the first to say this, however have a look at the Kmorpheus's avatar pic though, its a work of art!

[Eric59]

OK, got my interest. Looking forward to seeing some dyno numbers.