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Artikel:
DAIHATSU
Conversion:
EF12 valve turbo TRX-X EFI head onto ED850 cc block.
The head from this:
...onto this blockBenefits:
Replaces 6 valve SOHC head and carb with single cam 12 valve multi-point EFI and RHB31 turbo.
Mods Required:
To place the hi-po head onto the 'big block', an L80 660cc head gasket is needed. Also, an 850 belt is necessary as the 850 has a slightly taller block. (Belt part no 1351487211, gasket no 1111587211).
All bolts and galleries line up. The naturally aspirated 660's CR is 10:1, while the 850 has a slightly lower compression ratio. An oil return line from the turbo is required to be tapped into the top of the sump.
For best results, an aftermarket engine management system will be needed. But since overall this is such a cheap conversion, perhaps the stock (import-only) Mira TR-XX computer that came with the 12 valve turbo could be adapted to suit.