crocrx wrote:High compression pistons, cam
Gotin wrote:4-1 Header if you want your number at the top of that chart to be higher.
4-2-1 Header if your want there to be a gradual increase across the whole RPM ban.
This should show an improvement over a stock b16a header.
If you're looking at changing the displacement, then it's faster/cheaper/easier to do B20/vtec.sigmabob wrote:crocrx wrote:High compression pistons, cam
Would you recommend a bore and something a little bigger?
do you have a parts recommendation? It's hard to google because a lot of the answers online are from 5+ years ago, not sure if much has changed though.
Look up "Exhaust Theory". The runner lengths and width from the cylinders to the first and second Y is important for freeing up engine power. The stock headers are not only a bad material for performance (almost always iron) but the lengths are too short for proper cylinder scavenging, even for just 180HP.sigmabob wrote:b16a stock header is 4-2-1. would a mugen or skunk2 header really be better? looking at the geometry I don't see much difference. Definitely would look better my stock headers are ugly for sure.
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