Over the past week I've been looking into the blower drive take off that I was contemplating - ie from the alternator fixing bolt [ 12mm ]. It's the only logical / practical place, but I was concerned about the torsional shear stress on the fixing. The blower will take around 15 - 20 bhp to drive, but it's the inertia that needs to be overcome that's a concern. Soooooooooo - back to the turbo then !!! What's that about " I used to be indecisive - now I'm not so sure" !!
The blower set up is much more familiar to me, but I do not want to take the risk of a marginal drive output. So I will revert to using he same take off to drive the Gixer oil pump for the oil cooler and turbo feed. The only good news [ ? ] is that I spent some months thinking about the turbo set up and planning the packaging. One of the major benefits is the much lower weight and compactness.
The decision was finally declared a no-brainer when our pal Der-Nanno informed me that he's found a carbon seal turbo for his TR1 project. Thanx mate ! That means I can use the SU carb I have in a draw through set-up and I already bought most of the ancillaries I will need - boost gauge, oil pressure gauge, oil lines and fittings, etc., etc. That makes the whole packaging much simpler - including manifolding, even my 2 > 1 high level exhaust will easily hook up to the turbo flange !
The ramp and all parts are now round at my pal's garage, he's just finishing replacing and moving some of the light fittings and then we're good to go.
The blower set up is much more familiar to me, but I do not want to take the risk of a marginal drive output. So I will revert to using he same take off to drive the Gixer oil pump for the oil cooler and turbo feed. The only good news [ ? ] is that I spent some months thinking about the turbo set up and planning the packaging. One of the major benefits is the much lower weight and compactness.
The decision was finally declared a no-brainer when our pal Der-Nanno informed me that he's found a carbon seal turbo for his TR1 project. Thanx mate ! That means I can use the SU carb I have in a draw through set-up and I already bought most of the ancillaries I will need - boost gauge, oil pressure gauge, oil lines and fittings, etc., etc. That makes the whole packaging much simpler - including manifolding, even my 2 > 1 high level exhaust will easily hook up to the turbo flange !
The ramp and all parts are now round at my pal's garage, he's just finishing replacing and moving some of the light fittings and then we're good to go.