Lower Plenum Porting Question?
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Originally Posted by key
Something else that I find interesting is that the runners on these intakes are right next to each other, with regards to the air horns. It seems that a runner could be taking air from the one next to it, and then visa-versa when the other runner begins to draw in air.
Do you have any pictures of the intake hat (upper plenum).
Do you have any pictures of the intake hat (upper plenum).
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Looking good Murphy
I thought about doing the same thing. I have another plenum on order to try a few more things with.
Im just glad we are helping each other out in the learning process. I know i am having fun messing around with porting the plenum out![Smilie](https://my350z.com/forum/images/smilies/smile.gif)
Looking forward to the results
Later
Aceman
I thought about doing the same thing. I have another plenum on order to try a few more things with.
Im just glad we are helping each other out in the learning process. I know i am having fun messing around with porting the plenum out
![Smilie](https://my350z.com/forum/images/smilies/smile.gif)
Looking forward to the results
Later
Aceman
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I'm going to JE Performance next Wednesday for a dyno tune. I ported the upper Plenum and throddle body last night. Here are a few pics. I need to port the lower plenum this weekend, I cought something in my eye and scratched my lens I'll be sitting in the dark for the next day or so.
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.....I hope you are not trying to use a dremel to do the top.. If you are, stop and go get a 3 inch sandpaper flap wheel. I think the one I used was 60 grit, and it was from Black and Decker. I only used a dremel to smooth the cuts down after I took a metal file to them if the flap wheel couldn't get it. They also have dremel flap wheels, get a few of those too.
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thanks murphy, whats a 3" in sandpaper flap wheel? link? i use the highspeed stainless steel cutter, 60 grit and 120 grit sanders with the dremel. i'm using that and going over it by hand (which takes forever and it kills my fingers).
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Here is a web site that sells them but I bought mine at Home Depot. It's just like a Dremel flap wheel but larger. I did not do any hand sanding on the lower plenum.
http://www.onlineindustrialsupply.co...-diameter.html
http://www.onlineindustrialsupply.co...-diameter.html
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Actually, it attaches to a drill. You should only need one but, I would say getting 2 or 3 wouldn't be a bad idea. This will only help you with the top and the bowls. Start with the bowls, as the flap wheel wears down, it gets harder to get in there. The 3 inch flap wheels are also great to bore out the intake tube on the plenum. I wear glasses but, I wasn't wearing saftey goggles and something really cought me in the eye. I scratched the lens pretty badly and been dealing with a runny eye for the past 2 days....important lesson here guys. I'm getting goggles or a shield tomorrow, Friday afternoon and Saturday I will have it back off the car to take it down more and bore the runners out the best I can. Then on Wednesday it gets Dyno Tuned. I'll post more pics of what I do on Saturday night or Sunday.
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thanks Murphy i got the flap wheel and it work well to smooth everything out (a lot better and faster then by hand). but its not super effective when it comes to gridding all the "OEM" divits. i also don't know how i would be able to use it to bore out each runner. unless they make small maybe 1" ones, which i couldn't find at Sears. any advice?
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That stuff you got in your eye is aluminum shavings and they are almost invisible to an eye doctor, but they scrap them off your eye. The little chunks are bad. My Dad used a skilsaw to saw sheet aluminum and had this problem several times. And if they were steel slivers (which they are not) it's much less painful since they use a magnet to pull steel debris. Other stupid lesson I learned from my dad and didn't repeat myself in over 40yrs.
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Originally Posted by aleok
thanks Murphy i got the flap wheel and it work well to smooth everything out (a lot better and faster then by hand). but its not super effective when it comes to gridding all the "OEM" divits. i also don't know how i would be able to use it to bore out each runner. unless they make small maybe 1" ones, which i couldn't find at Sears. any advice?
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Originally Posted by johnlotusboy
That stuff you got in your eye is aluminum shavings and they are almost invisible to an eye doctor, but they scrap them off your eye. The little chunks are bad. My Dad used a skilsaw to saw sheet aluminum and had this problem several times. And if they were steel slivers (which they are not) it's much less painful since they use a magnet to pull steel debris. Other stupid lesson I learned from my dad and didn't repeat myself in over 40yrs.