dfw

**JDMLOL** · 05-30-2013, 07:30 PM

Just tried it out on my car, what a joke. Yeah it sounds good, but it's fake and I can already foresee the driveability issues. Stalled at a light after a 15 min spin around town. To top it off, at lights you can just watch the gas needle drop, even on that short of a trip. Uploading the race tune without this faux idle shit and leaving it until I can get a real (dyno) tune.

**Toby** · 05-30-2013, 09:53 PM

Originally Posted by re-rx7

http://en.wikipedia.org/wiki/Variable_valve_timing

"VTEC can be considered the first "cam switching" system and is also one of only a few currently in production."

http://en.wikipedia.org/wiki/VTEC

"A third option is to change the cam timing profile, of which Honda VTEC was the first successful commercial design for altering the profile in real-time."

Call it what you will, Hondas V-tech system is entirely different in every way from the TiVCT system ford uses. Only one fact about them is the same and that is the fact they both use oil pressure to activate the system. Other then that they are polar opposites in how they work and what they affect. I have built more then one of these new 5.0 and a couple Honda motors, I can tell you exactly how each work and what is required for them to make the changes they so in performance and economy.

re-rx7 · 05-30-2013, 10:50 PM

The mustang system reminds me of the vvti in the Toyota. The K-series I-Vtec Honda engines are much like the VVTI but can adjust up to 50 degrees either way. You must have tore apart a Bseries.