For its time, the 20V BT was highly optimised from the factory, which means that
extracting extra performance with bolt-on parts is not so easy. The factory ECU does
a good job if the engine remains stock which includes keeping the factory intake
plenum and velocity stacks. Running open throttles with straight velocity stacks
usually results in a lot of noise and lower performance at daily driver speeds.
If you have the factory plenum I would recommend using it if you can. Better yet
if you can use it with a factory cold air intake and filter box.
A few track days will not be a problem unless you like to sit on the rev limiter for
extended periods. The engine will stop making power short of the rev limit, so for
maximum performance you will be shifting around 7000rpm most of the time. When
you have had the engine in the car for a while and discovered what it can do in
stock form, you will have a better idea of what you want to do. More compression
is good, but you need better camshafts and a programmable ECU to fully exploit the
extra compression.
You of course can decide for yourself what you want to do with the engine. But if
it was my engine, I would get it stripped and inspected to see how much wear there
is on the bore and pistons. If the bore is in good condition, I would fit new rings,
bearings, gaskets and seals. Take a light cut off the head to clean it up and grind
the valves if they need doing. New OEM headgasket, timing belt and tensioner...
and I'd call that good to go
However, if the bore is worn to the point of needing to go to the first oversize, then
that would be the time to decide if you want to use the Tomei parts or new OEM parts.
Cheers... jondee86
so im very sorry about the noob question.
