Plenum spacers?

[tejohnson]

Not to put you on the hook Ben, but...

[bszopi]

Would you like me to send you the AutoCAD file? Might need a little work to get them to work flawlessly with a laser/waterjet, but I have the basic design already done.

[schweppe23]

Todd i'll take a set as well

[Darin]

I'd be interested in a set if someone makes run of them.

[geoffinbc]

I can get some cut on a water jet. I would not recommend the laser for aluminum so thick and the precision required.

But let me hunt down a 1" thich slab of aluminum and I'll see what I can do. No promises though.

[treeZ24]

something like this perhaps?

6061 aluminum + 1" thick + c&c machined....

a wee bit on the expensive side i'm afraid but i can get them made up. i've already done a set for Don as well.

[IsaacHayes]

I was thinking "why?" but then I saw the nitrous injectors. Makes it easy to go back to a stock setup without permanently modifying your intakes. Other than that, I guess if you wanted more low end torque you'd opt for them. But for HP I don't think you'd gain anything. That's one reason why the 3500 plenum makes more power, it shortens the overall runner length.

[SappySE107]

I will have them made next month if that is ok for their schedule. Im not sure what thickness I want to use yet though.

[tejohnson]

Well, for n20, it would be interesting. My other wish is to raise the UIM, and to raise the TB... Will prolly do without at first tho... Costs are just too prohibitive when folks I talk to are asking for ~$300

The response "Hell no" comes to mind.

[treeZ24]

Well, for n20, it would be interesting. My other wish is to raise the UIM, and to raise the TB... Will prolly do without at first tho... Costs are just too prohibitive when folks I talk to are asking for ~$300

The response "Hell no" comes to mind.

really?? damm i got both mine done for 140$ CAN :P

[IsaacHayes]

Todd: why would you want to raise the UIM? Just curious as to the application/reason.

[john_V63400]

Ill buy it

[blackbombshell95]

What are the known benefits of a plenum spacer? So under the UIM?

That would be interesting with my zex setup. Anyway to prevent intake puddling would be great.

[prophiseer]

It would increase the runner length, plus raise the UIM allowing for more airflow and cooler UIM temps. I don't really think you can see much of a power gain in increasing the runner length on these motors . . .

On the other hand, I'm currently running spacers made from water-sealed and painted plywood; they act more as heat insulators more than anything else, and along with some thermal guard under the plenum, I've managed to reduce heat soak of the UIM quite a bit. With the motor running full hot for about an hour, there's still almost a 20-30* difference in temps from the UIM to the LIM.

[IsaacHayes]

wood spacers!! now there's getting creative!! My intake plenum is cool to the touch when I stop and pop the hood. Now if I let it sit and idle then it gets hot. I wonder how much of a difference cooling the plenum really does.

And extending the runners on these motors doesn't seem to help. In fact shortening them helps from what I've seen. If we had really realy long runners (huge spacers) then maybe you could notice a difference, but likely it would just help the low-end and torque.