i never thought about that, i know some people through my work that do anodizing. i really need that 600 bucks from the government so i can get a couple lowers to mess with. i want to port match and hone a lower and the y manifold to the heads, port match the heads, get one of your 5/16 iso thermal spacers and slap it all together with my upper and see what happens heh

 

whats a good brand for a plenum space for a 350z and if it helps or not?

 

That's easy.

Just click the link in my signature below and look around the website for a lot of information on the subject.

PM me if you have any questions.
Tony

 

nice work boys. Does anyone have any plenums upper/lower for sale

 

FWIW - I took my plenum apart last night b/c the top exterior portion had some small hairline cracks developed and small amounts of oil was seeping out...

the epoxy is holding up perfectly - looks like the cracks on the exterior are just due to thermal cycles and the difference from the paint/plenum/epoxy...not sure how the oil is getting through - I wonder if the expoy is porous enough to allow the oil to seep through??

didn't get a chance to take any pics last night...but here's a pic of what it looked like before:

here's it unfinished...you can see the epoxied areas.


finished version


installed

 

maybe try getting your upper plenum powder coated. That should create an impermeable coating, no?

 

I'm doing my also but I'm going to take them all out.

Have you notice any performance increase by doing this? How's butt dyno say?

 

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i started mine a couple of weeks ago. I'm taking down all the stubs but i get the manifold back tomorrow from welding ill have pics as soon as i get it.. and i also have a lower that im going to play around with.

 

wouldnt it have been better to fill in the holes from the top side prior to removing the legs?

 

well i am getting new aluminum welded in those holes and then i'll use the jb weld after i grind down everything nice and smooth to get everything looking the way i want it.

 

nice... cant wait to see the outcome

 

got the manifold back and grinded down the welds. I did what i cold with just sanding cuz the guy that welded it tried to fill in the gap after he had welded a round piece of aluminum, but didnt do suck a good job on that part. nothing a lil J&b weld cant fix.



Inside is better. dont know if i want to j&b weld the lil holes or just leave them though.

 

Wonderful job!

I did the same thing but left one bolt in the center. I think this has been one of the best intake mods I have done on my SC'd Z. I don't seem to have the torque/horsepower drop off that many seem to experience on boosted Z's.

 

Fresh J&B Weld. Now i have to wait till it cures and then i can sand it which will be later on tonight.

 

 

J&B weld sanded on the front and ready for paint.


inside completely sanded with 320 grit


freshly painted


after 30 min of drying with the wrinkle setting in


tomorrow i start on the lower one

 

What do u guys think?

 

looking good man, i like the finish on the paint. i still have my modded upper but i just got rid of my z so i don't really have any reason to mess with all of that anymore. i wish i would have gotten to do more with it all

 

let us know if theres any performance difference via the butt-dyno

 

Its lower is done and going on the car tomorrow




Gotta Represent..lol