CWT
10+ year member
Member
Actually, for street applications adding fored-induction to a V-TEC 4 works quite nicely becuase of the V-TEC's cam(s) having the "best of both worlds" in low speed drivability and idle and having high-end breathability. BUT, the boost must be limited to about 6-8 psi. due to the stock rods being a little weak, and the cast pistons are too high in compression and will melt under high heat. In most cases, the pistons, rods, and valve springs and retainers need to be upgraded to ensure durability, and to make boosting the engine worth it.
However in drag racing, (Pro, non-street) it is no advantage having the V-TEC system. You don't have to worry about a lopey idle or good cruising drivability in a serious drag setup; so a lot of teams that still run a Honda engine usually get a B18C non V-TEC, stroke it and add some fat custom turbo grind cams; it's a simpler setup for racing. In normally asperated (Non-turbo/supercharger) road racing or auto-crossing, the V-TEC would still have a pretty nice advantage due to more low end toque accelerating off corners.
The non V-TEC engines have the advantage if they can run a meaner set of cams; BUT unless the engine is boosted (Properly), bottom end torque will probably suffer.
Later.
However in drag racing, (Pro, non-street) it is no advantage having the V-TEC system. You don't have to worry about a lopey idle or good cruising drivability in a serious drag setup; so a lot of teams that still run a Honda engine usually get a B18C non V-TEC, stroke it and add some fat custom turbo grind cams; it's a simpler setup for racing. In normally asperated (Non-turbo/supercharger) road racing or auto-crossing, the V-TEC would still have a pretty nice advantage due to more low end toque accelerating off corners.
The non V-TEC engines have the advantage if they can run a meaner set of cams; BUT unless the engine is boosted (Properly), bottom end torque will probably suffer.
Later.