Dave wrote
i have to ask the question how
>many have actually turbo charged an engine that was not an off the
>shelf kit or something some one else did for them??
There are two of us doing just this in Australia at this very moment ,in
fact we are both turbocharging suzuki hayabusa's Im not sure how my mate
in Queensland is tackling his project but this is how I am my motivation
for doing so is the outrageous prices the kit makers are asking 20-30k aus
$ top shelf system 8-12k aus $ for a basic system
I have looked at all the kit makers products out there and they are quite
varied so im in front by knowing the basic requirements of puting one
together now down to how Im sizing a turbo for my project Dave let me know
if im on the right track I have gone for the Garret GT series turbo
mainly because they have a good selection of compressor maps and because of
the water cooled construction and ceramic bearings I have calculated data
for boost pressures PSIG from 8 through to 36 psig , then worked out
adjusted atmospheric pressure for Lake Gairdner from this I have calculated
pressure ratios = boost pressure + adj atmospheric pressure /adj
atmospheric pressure I then calculated CFM = .5 X CID X RPM / 1728 X .95 (
my estimate for the VE of the bike ) X density ratio then converted this to
LB per min then ploted these two figures against the compressor maps I
downloaded I have tried to place the plot as close as possible to max
efficiency at max torque and still not less than 65% efficiency at max RPM
unfortunatly none fit nicely into what I want with the maps I have so I have
compremised for a GT 40 it has a higher A/R than I want but will support my
HP target and spool up time I think is not that important over the long
corse at WOT ?? any way am I on the right trak ???
Gary
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