Brake pedal clevis and oil cooler pipes

Today I installed the brake clevis to the brake pedal and measure up for the push rod.  I also got the oil cooler pipes back so had a go at fitting those.  I just taped them in for now as I need more P clips.

Clevis installed along with bolt to adjust pedal position

Oil cooler pipes installed

Airbox - new cardboard mock up

I remade the airbox from better cardboard so I can get the sizes right.  The back and front fit fine but the sides should also be curved due to the size of the bonnet.  This airbox could possible be made from GRP or aluminium.

Airbox - new cardboard mock up

I remade the airbox from better cardboard so I can get the sizes right.  The back and front fit fine but the sides should also be curved due to the size of the bonnet.  This airbox could possible be made from GRP or aluminium.

Airbox - cardboard mock up

I made a cardboard mock up of an airbox tonight.  This would seal against the bonnet and be fed by a cone filter somewhere under the bonnet.  Even with this type of airbox it can be seen that the trumpets are quite close to the top which may restrict the air flow into the engine and potentially lose engine power.

It is looking more likely that I will have to cut a hole in the bonnet.

Air filter options

The pipercross air filter and backplate I ordered arrived today.  I remade the backplate from cardboard, fitted the new smaller gsxr750 trumpets and tried the air filter under the bonnet.  Not surprisingly it didn’t fit; infact it was about 30mm too high.  This means I will probably end up cutting a hole in the bonnet (which I don’t want to do) or making an airbox to fit under the bonnet.

I have seen a nice airbox on locostbulders that uses the bonnet as the top of the airbox to maximize space.  Ill try a cardboard mock up soon.

GSXR 750 trumpets next to larger GSXR 1000 trumpet

Cardboard backplate for Pipercross filter

Filter touching bonnet

The bonnet was resting on the Pipercross filter so wasnt sitting on the chassis rails.  Photos below show how much too high it was sitting.