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Old Mar 8, 2006 | 03:40 PM
  #1  
rotaryinspired's Avatar
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Well I mostly read on here, but I figured I would finally contribute something. These are my ports I am doing for another fellow in OKC. They are FD plates. We are hoping to see 400+ hp. I will be redoing the primaires to the same size. The reason being that I broke into the water jacket on the other side. Its a pin hole sized hole. I will repair it and keep the iron for myself. I don't feel comfortable w/ a repaired iron in someone else's car.



Any constructive crizicism is welcomed. I have ported several motors, we can always learn more. Thanks.
Old Mar 8, 2006 | 04:34 PM
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They look really good from what I can see. Those pics aren't the greatest. Did you use templates?

Also what are your plans for the exh. ports?
Old Mar 8, 2006 | 04:52 PM
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I suck at taking pics. I didn't use a template. I like to feel the ports for the first ones I do. It depends on the motors use. Then I make a paper template from the original and copy it to the other side.



I will post some pics of the exhausts later when I finish them



In the mean time here are some pics of the exhaust from another FD I did. This picture is before I bevelled the edge around the exhaust port. The primaries on this motor were mild and the secondaries were a little smaller than the ones above.
Old Mar 8, 2006 | 07:45 PM
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Your exh. ports look pretty much the same as what I use. I go a little bigger than a rb race port. Looks good. Nice job. Not sure what you mean by feel the ports though. Whatever works right?
Old Mar 8, 2006 | 08:10 PM
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your ports look very good.



for help with making templates you can always use plexiglas to visualize as opposed to just feeling. i know it doesn't help with depth, but it will be better than estimating.
Old Mar 9, 2006 | 09:59 AM
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Oh wow man that is really nice looking. I wish I could trust myself to do that
Old Mar 9, 2006 | 12:42 PM
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Originally Posted by eclricochet' post='806925' date='Mar 9 2006, 10:59 AM
Oh wow man that is really nice looking. I wish I could trust myself to do that
all you need is a steady hand, a little knowledge of port timing and seal tracks, and some carbide burrs. And know bigger isnt always better
Old Mar 9, 2006 | 02:33 PM
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Originally Posted by RONIN FC' post='806964' date='Mar 9 2006, 10:42 AM

all you need is a steady hand, a little knowledge of port timing and seal tracks, and some carbide burrs. And know bigger isnt always better


See that is part of the problem I am REALLY new to rotaries and plan on using a decent sized turbo for the TII swap I am going to use through december. So exhaust ports should help with spooling the turbo quicker.(There may be alot of bull **** in that last statement, feel free to correct me if I am wrong) Not to mention I am 19 IT guy...I drink ALOT of caffeine and have since I was like 5. A steady hand is not something I have. I found it hard enough to cut a washer of my crankshaft pulley bolt on my honda.
Old Mar 9, 2006 | 05:48 PM
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Just dont expect your first time to be the best work. I love caffeine as well. About 7 Dr.Peppers a days worth. You need to understand where the seals travel and where you can port. Look at some used irons and it will give you a great idea of things.



Bigger is better 95% of the time in my book. I run a 88 N/A with amost the identical port on the primaries as what is posted above. I also run that motor w/ larger 5th and 6th ports w/ no sleeves and a large exhaust port. The car has a straight pipe (no cats) and stock intake. It doesn't have much power under 2K but it really screams above 4K.



Everyone has a slightly different opinion. The one we agree on is the stock ports are restrictive.
Old Mar 10, 2006 | 02:58 AM
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shitty looking ports. I dont expect that engine to last 2000 miles.



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