pateras_vtec
Active Member
- Joined
- Feb 16, 2008
- Messages
- 1,364
Right, i`m confused about the way these two kinds of manifolds work, and in which power band they are more effective.
I read and read but can`t seem to get a solid answer on weather a 4-2-1 header is used to improve mid-to-high revs and a 4-1 low-to-mid revs or vice versa. In best motoring "Type R Legend", there`s a part where they mark face and preface-lift differences for the integra R. They say that (as we all know) that a SS header (4-1) is equipped to the face-lift teg, which makes more torque in lower revs. Honda specifically announced at the time 18.5kg`s @ 7500 preface and 19.0kg`s @ 6200 face-lift.
Since the the facelift teg made more torque down low, keeping the same power (200hp@8K) isn`t it safe to assume that a 4-1 header performs better in the low-mid region of the engine whilst a 4-2-1 in the mid-high?
I read and read but can`t seem to get a solid answer on weather a 4-2-1 header is used to improve mid-to-high revs and a 4-1 low-to-mid revs or vice versa. In best motoring "Type R Legend", there`s a part where they mark face and preface-lift differences for the integra R. They say that (as we all know) that a SS header (4-1) is equipped to the face-lift teg, which makes more torque in lower revs. Honda specifically announced at the time 18.5kg`s @ 7500 preface and 19.0kg`s @ 6200 face-lift.
Since the the facelift teg made more torque down low, keeping the same power (200hp@8K) isn`t it safe to assume that a 4-1 header performs better in the low-mid region of the engine whilst a 4-2-1 in the mid-high?