- #1
ninjasta
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I was looking into what cylinders need pairing to make a set 0f 180 headers for an LS V8 engine.
When looking the pairings shown below.
LS firing order 1-8-7-2-6-5-4-3
Passenger (L) side = 1 3 5 7. Driver side (R) 2 4 6 8
1-8-7-2-6-5-4-3
L-R-L-R-R-L-R-L
for a 4-1 header I get.
1-7-6-4
8-2-5-3
AND for 4-2-1 180 - Was thinking the 1st pair would be short headers.
1-7
y-pipe > Left Out
6-4
8-2
y-pipe > Right Out
5-3
However I noticed that if I just paired the cylinder ports (inner,outer) as follows I can 4 * 180 pairs as follows
180 pairs into 4 pipes (Twin * 4)
1-7 > out A/L
5-3 > out A/R
6-4 > out B/R
8-2 > out B/L
My question would the above arrangement still take advantage of resonance scavenging whilst avoiding the need for headers which link pair from opposite sides at expense of running 4 separate outlets at the rear (I quite like the idea of 4 outlets).
What effect would it have on the exhaust note - would sound like 180 headers or some thing different from either a crossplane or flat-plane v8?
When looking the pairings shown below.
LS firing order 1-8-7-2-6-5-4-3
Passenger (L) side = 1 3 5 7. Driver side (R) 2 4 6 8
1-8-7-2-6-5-4-3
L-R-L-R-R-L-R-L
for a 4-1 header I get.
1-7-6-4
8-2-5-3
AND for 4-2-1 180 - Was thinking the 1st pair would be short headers.
1-7
y-pipe > Left Out
6-4
8-2
y-pipe > Right Out
5-3
However I noticed that if I just paired the cylinder ports (inner,outer) as follows I can 4 * 180 pairs as follows
180 pairs into 4 pipes (Twin * 4)
1-7 > out A/L
5-3 > out A/R
6-4 > out B/R
8-2 > out B/L
My question would the above arrangement still take advantage of resonance scavenging whilst avoiding the need for headers which link pair from opposite sides at expense of running 4 separate outlets at the rear (I quite like the idea of 4 outlets).
What effect would it have on the exhaust note - would sound like 180 headers or some thing different from either a crossplane or flat-plane v8?