im not aware of the restrictor mod, ill need to check with the engine builder. im suspecting it also could be the oil pump or something wasnt done right during the rebuild.
last build up was done 6 months ago, forged pistons, rods, head work, R34 gtr turbos, apexi power FC and the rest, ive only travelled 5000kms since rebuild and tune at 237kw aw @11psi..
Im so upset that after spending 8k on rebuild it didnt last more than 6 months, and im back to square one now.
What other damage should i be expecting and how much would set me back if the engine builder dosnt cover it under warranty?