The VX is kind of an uncommon engine in that it has high torque at low RPM and that a header that increases torque in other 1.5 liter engines are most likely going to do very little for this engine, my vx has plenty of torque at 1,000 to 1,200RPM that is just above idle, for most engines of this size low end torque is thought to be in the 2,000 to 2,500 rpm range and with the vx engine the V-tec kicks in at 2,500 rpm and unless I have a few passengers in the car and want to merge on to a busy freeway my engine never revs as high as 2,500rpm.
Quote:
Originally Posted by Old Tele man
..."Tri-Y" headers are good for low-end, especially small displacement engines having low-torque.
...for that very reason, they (usually) make excellent "street" headers.
...anybody remember the "Auto Shop Series" article, "Header Science," in the November '73 issue of HOT ROD MAGAZINE, pages 114, 115 and 118?
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