Senior's Carbon Bonnet

A fellow Bro of mine with the nick Senior (due to the seniority of his mods. I kid you not!) had lots of grief with his tall 4G63T EVO3 engine and had to resort to using unsightly thick fat spacers between the bonnet and it's hinge to clear the 4G63T's timing belt cover. I know lots of people out there think a raised bonnet looks trick but from an engineering standpoint it's pretty bad. I mean how many race cars out there do you see doing this? Increases drag and spoils the airflow. Senior tried the the el cheapo RM900 frp/cf bonnets with no full frame but even this didn't clear properly. Poor chap also couldn't fit a carbon radiator slam panel as the angle of the slanted bonnet was causing contact and damage to the slam panel.

So with some persuasion and lots of sweet talking, managed to persuade by Bro David of SR Composites to specially design a bonnet to meet Senior's demands. Due to budget reasons the bonnet is not 100% carbon. The decision was taken to design a special mould to create a hump on the bonnet similiar to the HKS TRB-02 carbon bodied EVO to clear the engine. Due to copyright reasons I unfortunately can't publish the picture of the HKS TRB-02's bonnet and hump.

For cost reasons the hump was moulded separately rather than incorporated into the entire bonnet mould for the HKS race car.
Pix of the nearly finished bonnet. The master plug to make the hump for the bonnet can be seen. I worked on the other bonnet but it ended up on my Bro's car. Currently working on another bonnet for myself sans hump of course.

Picture of the bonnet fitted to Senior's car. As can be seen from the picture the bonnet sits flush on the fenders and is not raised. Stupendous fit and quality. Do compare this bonnet with the likes of Varis and C-West. Finished bonnet weighs approximately 4.5kg vs 14kg for stock steel bonnet. Bonnet pins are not required (track tested by Senior) but encouraged for additional safety. The bonnet incorporates the stock double latch and also all the required fittings for the stock rubber seals. Pictures of the underside to follow once Senior stops staring at his bonnet and bothers to take some pictures for me.

Closeup of the hump. Fasteners are stainless steel. Look at the quality and straightness of the weaves. Pre-preg?