Its Alive!

mazdaspeed7 · 2003-10-04 20:56:02

it would love no AFM more https://www.nopistons.com/forums/public/style_emoticons//biggrin.png

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10-04-2003, 06:42 PM

#11

pengaru

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it would love no AFM more

10-05-2003, 07:49 AM

#12

tewquick2c

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Location: Ontario

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I have base model 86 6 port and was wondering if i could do the same porting to my motor?

10-05-2003, 07:55 AM

#13

tewquick2c

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Looks good

10-05-2003, 01:32 PM

#14

mazdaspeed7

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Quote:

Originally Posted by tewquick2c' date='Oct 5 2003, 08:49 AM

I have base model 86 6 port and was wondering if i could do the same porting to my motor?

It wont pass emissions, so if thats a concern, you dont want porting like mine.

Penguru, no AFM is comign soon.... But first things first.

10-05-2003, 01:35 PM

#15

tewquick2c

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I just finished doing it ****....hmmmm well i can work with emissions..lol ill put picks up tomorrow of the portinh so far i took the sleeves out and used a milling machine..i guessed at the port sizes but didnt break throughany walls ie water jackets.......should i grind the oil ways and water ways etc....?

10-05-2003, 05:36 PM

#16

88IntegraLS

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While we are on the subject of rotaries being alive, I got mine finally going with no coolant leaks today. It has 24 miles on it as of right now. All I can say is damn, the thing pulls. It is hard to keep it under 4000 rpm. It's having some idling issues but those are so easy to fix compared to a pinched coolant seal!

Way to go Adam!

10-08-2003, 01:56 PM

#17

pk797

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Location: Queens, New York

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[QUOTE]It's having some idling issues but those are so easy to fix compared to a pinched coolant seal!

Is that what it turned out to be?

How did you finally find out?

Was it leak into both rotor housings or just one?

How did it look when you went back in there?

I ask because I think I may have a similiar problem.

10-10-2003, 05:06 PM

#18

FrestyleFC3S

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Quote:

Originally Posted by mazdaspeed7' date='Oct 4 2003, 06:44 PM

You are correct, sir. I will never build a motor foy myself another way. I like that powerband WAY too much without the sleeves.

whats the diff?

im deciding whether or not to use them after my port

10-10-2003, 05:14 PM

#19

mazdaspeed7

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Quote:

Originally Posted by FrestyleFC3S' date='Oct 10 2003, 06:06 PM

whats the diff?

im deciding whether or not to use them after my port

For turbos, it makes a big difference in the spooling. It also moves the torque peak up to around 6-7K, with a very broad plateau around the peak. There was a dyno graph of one of RICE RACING's motors I saw before, ill see if I can find it. In my personal experience, it makes the powerband very smooth and progressive. Torque just builds with the revs. There is also a nice amount of HP to be gained. With my last motor, I had that exhaust port, and my 6 ports wired shut(dont ask) so I was only running on the 4 main ports, which arent very big. I easily pulled on my friends n/a with similar mods, but a stock port motor with 6 ports wired open. The drivability is great, as long as everything else is in good working order. Its less tolerant of vacuum leaks, and it will affect the idle. Its not important with a turbo, but low rpm response is reduced as well. But boost will make that a non-issue, and the boost will come on sooner with that port.