optronix
Senior Member
That's pretty impressive, but still doesn't feel like it's worth it for 99% of people who don't plan on taking their car to a dragstrip.
Which again, I'll argue isn't what this car is best suited for in the first place.
The gains are impressive though, no doubt about that. Especially considering you don't have to tweak the head (cams still scare me though in a Honda "interference engine"; they do mention something about adjusting the VTC gears in their blog or you'll bend valves)
Which again, I'll argue isn't what this car is best suited for in the first place.
The gains are impressive though, no doubt about that. Especially considering you don't have to tweak the head (cams still scare me though in a Honda "interference engine"; they do mention something about adjusting the VTC gears in their blog or you'll bend valves)
Overall though I retract my statement about cams in this engine. Seems like a worthy upgrade for those who do just have to get more power in a DE5/FL5/FK8.4piston FK8 blog post said:About the camshafts
We narrowed this test down to the best performing “drop-in” camshaft of the bunch, and the best “mild race” camshaft of the bunch. What we consider a “drop-in” camshaft is one that you can install into a stock head using a stock valve spring. These cams still require limiting of the VTC gears so that piston to valve contact doesn’t occur. Even minimal changes in lift and duration in these engines require you to limit the variable camshaft so that you do not have valve to piston contact. We did all of the original testing on Motec to eliminate cams that didn’t perform, and keep the best performing profiles. I am most familiar with that software and we don’t have to work within the confines of some of the Bosch background programming to make sure we chose the best profiles. I will refer to the cams in this test as the names below.
TR2 – Drop in
TR3 - Mild Race Profile, Requires Valve Spring due to coil bind
TR4 – Race Profile (the TR4 test will be covered in another blog as it is more complicated to install and requires Motec or other motorsports grade ECU)
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