I have bought Sam Horney's race engine that was build by RLR motors. As they said it was done by HRC spec, but I did't find any about oil cooler in HRC manual. I thought it was done to get some room to fit HRC exhaust, but there is not problem not with exhaust nor with bigger radiator. So, I going to fit it back, but for me is the qiestion - why it was done ?

Picture stolen from Greggo's album...