However Magpies first five-eighth Ihaia West succeeded with a handy penalty in the 37th minute. The Turbos 11-3 halftime lead was a fair reflection of the first stanza.
Two more penalties from West, one from 41 metres, had the Magpies trailing 11-9 after 47 minutes.
Hard working Magpies lock Mark Abbott scored the first try for the visitors in the 51st minute and with West's conversion the Magpies were ahead 16-11.
More Turbos forwards pressure saw Taylor score his second try. Black missed the conversion attempt.
West maintained his 100 per cent success rate with a 57th minute penalty from 40 metres out on a wide angle and the visitors led 19-16. Another West penalty in the 63rd minute and an intercept try from centre Robbie Fruean three minutes later had the Magpies ahead 27-16.
A 70th minute try from Taylor's replacement and fellow Bay age group product Tim Cadwallader had the Turbos within range again.
It was appropriate West should deny the Turbos a bonus point with his 76th minute penalty. He finished with seven successes from eight attempts.
The match was played on a soggy Central Energy Trust Arena ground after regular heavy downpours during the final hour before kickoff. More rain came when Tasman referee Michael Lash blew the first whistle.
Scorers:
Manawatu 21 (Travis Taylor 2 tries; Otere Black 2 pens ), Hawke's Bay 30 (Mark Abbott, Robbie Fruean tries; Ihaia West 6 pens, con). HT: 11-3.