[knighty]

Yup Aurora-GM 4.0 flat plane V8 IRL engine.... As far as im aware TWR designed the intake system, and some other bits and bobs, but the engines themselves were built elsewhere, as the IRL programme was far too important for TWR (profitable!), all I ever saw was the CAD data........regarding the turbos, these were garrett full race items, the reason being we (mountune) had just designed an lmp900 twin turbo for team Ascari based on the BMW-M5 engine, we had a conversation with garrett and they agreed to supply us exactly what they were supplying cadillac, there was certainly no instruction to couple the exhausts other than normal fashion........but never say never!