hmm, according to Trism's description, my d15b4 would be considered all out.
but you dont really need rods, you can mill the head and mill the block down to bring the pistons closer to the head to bump up compression, but with cast iron pistons, i'd try to leave around a 2-3mm gap, or your pistons will hit your valves at around 7200rpm.
and it doesnt cost too much money. will only set you back about 3-4k if you know where to get the parts from and a good mechanic.
an all out build setup and tuned properly with the right ecu can net you close to 200whp. rushi on d-series/onecamonly hit around 180whp with ITBs, and bisimoto went either around 300whp or over it with a pair of dual sidedraught webers and a lot of fluid dynamics implementations.
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