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?

 

160 to the flywheel

street port: a nice 30%

Wishful thinking

 

1st Hp quote; 146-150 tops
2nd depends on the porting.

 

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.

 

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)

 

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.

 

After 2 weeks of that you won't be able to hear anything. I think you underestimate just how loud a rotary is.

 

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

 

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!!!

 

muffler is on the way, I just dont want her sitting for anymore than she already has (almost 2 months)

 

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.

 

135-145hp


~165 with the streetport