exhaust headers
02-24-2009, 09:31 AM
#2
They say that ] shaped headers smoothen the power.
02-24-2009, 11:16 AM
#3
Tech Regular
iTrader: (2)
I've been hearing different things also. From what I remember back in the old days, it was a common belief that the longer header produced more bottom end torque and, the shorter header was biased towards top rpm.
Now I'm assuming that the "C" style is a long header and the "]" style is the short header.
Now I'm assuming that the "C" style is a long header and the "]" style is the short header.
02-25-2009, 11:02 AM
#5
It all depends on the engine, pipe and which header you are talking about. There are too many variables to make any general assumptions.
On the Mugen Ninja JX-21 B01A you can see the difference between the C and L type Ninja headers with the Ninja 2042 pipe on the dyno graphs I posted in the JX21 thread.
On the Mugen Ninja JX-21 B01A you can see the difference between the C and L type Ninja headers with the Ninja 2042 pipe on the dyno graphs I posted in the JX21 thread.
02-25-2009, 11:32 AM
#6
I've been hearing different things also. From what I remember back in the old days, it was a common belief that the longer header produced more bottom end torque and, the shorter header was biased towards top rpm.
Now I'm assuming that the "C" style is a long header and the "]" style is the short header.
Now I'm assuming that the "C" style is a long header and the "]" style is the short header.
02-25-2009, 01:08 PM
#7
I always thought the shorter header was more torque???
like when we used to cut a 1/4 inch off of the header on teh nitro tc3 back in the day..
MO
like when we used to cut a 1/4 inch off of the header on teh nitro tc3 back in the day..
MO
02-25-2009, 05:09 PM
#10
Generally speaking more length will give more low end and less length will give more top end. But, the taper and length of the divergent cone on the pipe is also important as well as the diameter of the header vs. area of the exhaust port. But when you make a change to the length of the header, you need to be mindful to match the header length change with a change to the overall length of the entire exhaust system.
And that will be dependent upon the port timing, operating temp, nitro % & plug.
To your original question about header bends. Straight s better than bent; curved (constant radius) is better than multiple bends.
And that will be dependent upon the port timing, operating temp, nitro % & plug.
To your original question about header bends. Straight s better than bent; curved (constant radius) is better than multiple bends.
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