99 Accord intake
#32
06-19-2008, 05:31 PM
RE: 99 Accord intake
Of course!!! I'm not going to put a timeframe on it because I have too many started projects right now, but I have the materials from the armrest sub box that I was going to build for the accord just before the tranny died.
#33
06-20-2008, 03:16 PM
RE: 99 Accord intake
good thing it died b4 u started working on that... it would have been time lost
#34
07-24-2008, 02:18 PM
RE: 99 Accord intake
ORIGINAL: falkore24
I can guarantee 100% that below 4000 rpms the 4 cylinder accord is slower with a header. The reason is that the systems are sized around 6500 rpm. At low engine speed the airflow isn't uniform and will not move through the exhaust piping as efficiently. The header will give you less of a restriction at the upper range and therefore will dyno a gain at peak HP, but this is simply because the curves have been shifted up in rpms.
HP = torque * rpm / 5252
I can guarantee 100% that below 4000 rpms the 4 cylinder accord is slower with a header. The reason is that the systems are sized around 6500 rpm. At low engine speed the airflow isn't uniform and will not move through the exhaust piping as efficiently. The header will give you less of a restriction at the upper range and therefore will dyno a gain at peak HP, but this is simply because the curves have been shifted up in rpms.
HP = torque * rpm / 5252
Although the header gives you less of a restriction (As with any exhaust modification) I doubt it's large enough to reduce torque.
Also, at low engine speeds, I doubt you will notice the loss in power (if any).
Well with a manual tranny anyway
up top though (4000RPM's+) you should notice a difference.
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