Turbobike Web Site www.Turborick.com
Hi I presume that you mean to use the stock VACUUM operated tap? If you connect the vac pipe as you suggest to the turbo inlet then it will be at atmospheric pressure and the valve will probably not open. If you connect to the plenum then as the thing comes on boost then it will turn off the fuel supply, leaving just the float bowls full, just time to develop some boost... most likely it will just cut out but it could also burn a piston or valve. These taps need some negative pressure to keep them open. This is normally caused by the CV carbs restrictive venturi even at full throttle. You could set the tap to ''prime'' if it has this setting. Better to fit a big free flow simple valve of somekind. One problem with fuel supply can be the air supply to the tank! The vent pipe is very restrictive. Make sure your regulator is the compensated type, where a pipe from the 'top' of the regulator goes to the pressure side of the turbo setup. You could ignore the water cooling part, but it would be better to route some coolant around it, even if this is oil from the oil cooler. ----- Original Message ----- From: Stuart Graves <STUARTGSXR@bigpond.com> To: <turbobike@natvideo.com> Sent: 16 August 1999 11:00 Subject: [turbobike] Water cooled turbo > Im turboing A 89GSXR750 (1100F motor fitted),blowthru-stock 750 36 mm > carbsIm using a IHI RHB52 turbo unit that has provision for water > cooling.Question ,can I blank the inlet and outlets off or should I rig up a > pump and heat exchanger(cheap and no problem)will this extend the bearing > life much?PS what do you guys doo about fuel taps and pumps?.I can route the > vacuum line from the tap to the turbo inlet (thread provided) so that sould > be ok ,Im,using a malpasi fuel regulator ,with one -Pierburg fuel pump(as > Joe Haile recommends(shop says I need two ,sounds like overkill for 7-8 PSI > boost) will the standard fuel tap flow enough fuel?, is one fuel pump > enough? do I need to mess around with the water cooled turbo(or plug > holes).Would appreciate any advice,you guys have been there and done > that.thanks > Stuart____________________________________________ _______________ > > Get Free Email and Do More On The Web. Visit http://www.msn.com >