Pic. enjoy..
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I amazed myself with this drawing... https://www.nopistons.com/forums/pub...#>/biggrin.png
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thats better than i could do
mike |
Cool!
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Is that the exact porting you did on The white 2nd gen 6port that you showed us the picture of. How's the white car coming along, you said it had the stock computer right.
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Damn, now that's what I call a port!
Tell me, is the cause of the rough idle the increased overlap, or just the sheer size of the ports? Also, is that car driven daily? |
Originally Posted by blaze08' date='Feb 8 2003, 06:22 AM
Is that the exact porting you did on The white 2nd gen 6port that you showed us the picture of. How's the white car coming along, you said it had the stock computer right.
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Originally Posted by rotary>piston' date='Feb 8 2003, 07:18 AM
Damn, now that's what I call a port!
Tell me, is the cause of the rough idle the increased overlap, or just the sheer size of the ports? Also, is that car driven daily? |
Most excellent!
Couple more questions: the bottom half of the port is always on - did you consider giving that part only a street port, and having the bridge port only on the auxiliarys? What effect would this have? I'd think then you'd have better low-rpm torque and fuel mileage, with the bridge available when the auxiliarys open - although obviously flow would be limited compared to the way it is now. Also what did you do with the centre housing? Thanks! J |
What if i did this kind of porting Judge Ito. What else would i need to do. Give me some tips, I'm all the way over here in Florida, otherwise i'd pass by you're shop and just talk all about rx7's.
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Originally Posted by DJ Rotor' date='Feb 8 2003, 06:44 PM
Most excellent!
Couple more questions: the bottom half of the port is always on - did you consider giving that part only a street port, and having the bridge port only on the auxiliarys? What effect would this have? I'd think then you'd have better low-rpm torque and fuel mileage, with the bridge available when the auxiliarys open - although obviously flow would be limited compared to the way it is now. Also what did you do with the centre housing? Thanks! J |
Originally Posted by blaze08' date='Feb 8 2003, 07:57 PM
What if i did this kind of porting Judge Ito. What else would i need to do. Give me some tips, I'm all the way over here in Florida, otherwise i'd pass by you're shop and just talk all about rx7's.
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I'll be hearing from you then... Till then I still have that extra 6port engine in my garage. I"m not going to start to do anything with it right now though. Hopefully by next month.
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Just let me know when ever your ready. Like a rotary super hero that I try to be. Ill be here for you. https://www.nopistons.com/forums/pub...#>/biggrin.png https://www.nopistons.com/forums/pub...#>/biggrin.png https://www.nopistons.com/forums/pub...#>/biggrin.png
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Judge Ito, a little off topic, but what do you think of using na rotors with a bridgeported turbo motor..
I was thinking that the higher compression rotors would help to difuse some of the effects of the large overlap at low speeds, similar to upping the compression when fitting a piston motor with a larger camshaft, in order to maintain a minimum amount of low speed cranking pressure, and enable the motor to run without having to advance the ignition in next week and throw a ton of fuel at it to get it to idle... I realize there is less boost potential with higher cr rotors on a given grade of fuel however I am thinking this would help maintain off boost driveability as well..Maxt |
Maxt, i wish i could answer you! And Judge Ito thanks for the support man, This site is very Fortunate to have you. Thanks for sharing your Knowlege with the rest. Felix Wankel would be proud of you(LOL). https://www.nopistons.com/forums/pub...1047683894.gif
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Judge that looks nice https://www.nopistons.com/forums/pub...DIR#>/wink.png Did you trace? J/K Out of curiosity do you have a dyno there at your shop?
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Originally Posted by Fd3BOOST' date='Feb 9 2003, 05:44 PM
Judge that looks nice https://www.nopistons.com/forums/pub...DIR#>/wink.png Did you trace? J/K Out of curiosity do you have a dyno there at your shop?
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Yea I draw and paint some too. https://www.nopistons.com/forums/pub...DIR#>/wink.png
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Judge..are you looking for a Chassis dyno or a engine dyno?
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Originally Posted by Apex13B' date='Feb 9 2003, 08:36 PM
Judge..are you looking for a Chassis dyno or a engine dyno?
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FD3boost that is a nice drawing, you have good control in your outlines. Your going to do very well porting engines.
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Problem is I already ported mine.
No more to port now. https://www.nopistons.com/forums/pub...R#>/violin.gif |
Originally Posted by Fd3BOOST' date='Feb 10 2003, 04:57 AM
Problem is I already ported mine.
No more to port now. https://www.nopistons.com/forums/pub...R#>/violin.gif |
Judge Ito,
I'll start out with some much do thanks for contributing to the forums. It is nice that you don't mind sharing information about what you have experienced and dealt with over the years. A few questions for you now: 1.) What purpose does the little sliver of material seperating the two pieces of the bridge port do? The same sliver is there keeping the stock ports from being one whole port. 2.) What do you think of notching the rotor housings to allow the bridge/j ports to flow as optimal as possible and do you do this to the motors you bridge port? Does this accelerate wear? 3.) If you do notch the rotor housings, I would assume you are not able to use the stock apex seal as the smaller pieces of it would fall out? 4.) Have you had any experiences with the "bridge" of metal in between the stock port and the non-stock (bridge) port cracking, especially under boosted situations? Is this common and to be expected? That's all for now. https://www.nopistons.com/forums/pub...IR#>/smile.png I'm sure I'll be looking to soak up more information later. Thanks. Best Regards, Kyle |
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