Harrop 2300 supercharger to Optimiser 6500

[jff45]

Rounding back on this conversation, I have had mine on the road now and cannot detect any deficiency in either steering or brakes. The hydroboost over the willwoods is great, very firm and progressive and pulls up far better than anything to date i have had. The Astra remains as the energ backup system, however probably one of those things that will never get used - with luck.

I'm still happy with mine, works well once the ECB pads have warmed up. I've also now fitted a VF Commodore UP28 electric vacuum pump for the factory diff lock so I can get rid of the vacuum pump on the alternator.