here my second attemp for vthec engine.

engvtch3.wav XFG_Type-r 2.eng go in Lsfdiretory/data/engine
XF GTI_Acura type-R.set go in Lsfdiretory/data/preset
Acura type r.twk.GTi.twk is the tweak file for lsftweak

i hope you will like this one

I think you meant VTEC and not VTHEC

lol sorry i always make mistake when writing vtec