i was lookin to buy headers, and i found different ones, and one set has the 4 to 1, and other ones have 2 to 1. which ones are right? or is the 4 right, and i have to buy 2 of the 2 to 1

 

Are you serious?? We have 2 exhaust ports, why o why would you need a 4 to 1? And you only need one header.

 

Do you understand what those numbers mean, or are you just saying things because we said them?

"I love lamp".


That's right, you probably have the IQ of Brick Tamland.

 

Stop looking on ebay for crappy headers.....its 2 to 1.

Go to Racingbeat.com or corksports.com

 

ever pop your hood and actually look at your exhaust manifold?

 

maybe he has a 4 rotor =x

 

Wow.... best thread evar

 

.

 

uhhhhhmmmmmm....... It's actually 6 to 1, and while you are at it you might wan to check those piston rings too......

 

Along with your blinker fluid and muffler bearings.

 

I am guessing by all of the AssHat remarks in this thread that the OP will probably not post again.

To answer your question. There are Two into One Headers and Dual Pipe Headers. For street use the Two Into One Headers are most commonly used.

Racing Beat makes the best / most popular header.

Pacesetter also makes a header but I have no information on it and from what I hear is not a good header. But then again that info is from the same AssHats that posted above.

Guys, give a N00b to Rotaries a break. Besides, if you look at a factory manifold it is not easy to tell how many exhaust ports exist. Especially if you know nothing about the engine.

 

I have a Pacesetter header. Its not a bad value, considering the price, at least when I bought it ten (yes, ten) years ago. It's material is thick, fits fine, and design is more towards torque, but when I bought mine it didn't have the 6PI pipe (keep reading next two paragraphs). But if your budget allows, go for the fancier ones. On the other hand, the Pacesetter cat-back I'd stay away from.

BTW, yes, our engine is a two rotor, one exhaust port per rotor. The 4 into 1 or 2 into 1 headers would be where you're collecting four (usually piston engine exhaust ports). The term 2-1 is sometimes used where four ports are paired into two and then those two are joined, whereas 4-into-1 joins the four together at the same point.

On a rotary (Racing Beat for example), you have two types of headers, one which joins the two ports before the cat, and the other type which runs two pipes to the cat and you need their cat which continues to the back and produces a real completely independent dual exhaust.

If you have an 86-88 non-turbo, you may need a provision to activate the 6PI (6 port induction) system, which essentially is a small pipe welded to the header, or else you loose high end (about 20hp) power. This is because the system uses backpressure (some say flow) which if affected (by changing exhaust to free flowing) can cause the 6PI to stop working.

 

BTW, word of advice if you haven't noticed...these cars aren't stupid complicated, but you need to know what you're doing. The above is a good example (6PI). Turbo cars take this "knowing what you're doing" advice to the next level!

Stick around, check the archives at the top of the 2nd. gen. section, search and you'll know more about these cars than 99% of the owners on the street.