1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Your Idea on power level:

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Old 01-21-07, 09:45 PM
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Your Idea on power level:

What would be your Idea of power level from a stock port 12a, 45mm carb, ported intake manifold, and header/back exhaust?

question 2, what would be the Hp/Tq difference if it became a streetported 12a?
Old 01-21-07, 09:47 PM
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160 to the flywheel

street port: a nice 30%

Wishful thinking

Old 01-21-07, 09:52 PM
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Originally Posted by Jeezus
What would be your Idea of power level from a stock port 12a, 45mm carb, ported intake manifold, and header/back exhaust?

question 2, what would be the Hp/Tq difference if it became a streetported 12a?
1st Hp quote; 146-150 tops
2nd depends on the porting.
Old 01-22-07, 08:46 AM
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Waffles - hmmm good

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What docs says plus be careful about porting the intake manifold. Of course assuming by 45mm, your talking a weber or weber like setup, the intake wouldn't be stock anyways and would probably already be "ported" efficiently for the carb. Search on the word reversion to get a better idea of what I'm referring to.
Old 01-22-07, 09:43 PM
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The answers to both would depend a lot on what kind of exhaust you have after the header.
Old 01-22-07, 09:53 PM
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Originally Posted by RX3SP
The answers to both would depend a lot on what kind of exhaust you have after the header.
2.5" back, no cats/presilencers/muffler (for now)
Old 01-22-07, 09:58 PM
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So, you're running a straight 2.5" pipe with no muffler from the header back on the street? I'll bet your neighbors love you!
Old 01-22-07, 09:59 PM
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Originally Posted by RX3SP
So, you're running a straight 2.5" pipe with no muffler from the header back on the street? I'll bet your neighbors love you!
they better! It is only for temporary, maybe 2 weeks most.
Old 01-22-07, 10:31 PM
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After 2 weeks of that you won't be able to hear anything. I think you underestimate just how loud a rotary is.
Old 01-22-07, 10:44 PM
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myn is a rb header to hollowed cat to muffler and it was freakin loud gave me head aches driving to work all the time
Old 01-22-07, 11:05 PM
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I raked the muffler off my EP car hopping the curbing at Portland International, and they were so busy trying to deal with a variety of carnage in the Festival Curves that they never got around to black flagging me for sound. Even though I was wearing earplugs, a balaclava, and a helmet I almost pulled off several times becasue it was so freaking loud that it was intensly physically painful. The cornerworkers at the last corner were actually turning their backs on me, crouching down and covering their ears becasue it was so loud when I passed within a few feet of them. I could look up into the stands and see mothers covering their childrens ears as I SCREAMED down the front straight. I couldn't hear properly for over a week after that, so I strongly suggest that you do not run a rotary in anger with no muffler!!!
Old 01-23-07, 05:31 AM
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muffler is on the way, I just dont want her sitting for anymore than she already has (almost 2 months)
Old 01-23-07, 07:24 PM
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Oh please, 2 months is NOTHING! My car has sat for nearly 3 years.
Old 01-23-07, 07:33 PM
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Originally Posted by 85rotarypower
Oh please, 2 months is NOTHING! My car has sat for nearly 3 years.
I have a towel covering the intake ports on the engine. i NEED a header.
Old 01-23-07, 07:38 PM
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135-145hp


~165 with the streetport
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