It makes about 131 hp
The 1989-1993 Miata came with a 1.6L DOHC and made around 120 hp. The 1994-1998 Miata came with a 1.8L DOHC and made around 131 hp. The 1999-2005 Miata came with a (updated) 1.8L DOHC and made around 142 hp. The 2006-present Miata came with a 2.0L DOHC and made around 170 hp.
The 2008 Mazda MX-5-Miata has double overhead cam (DOHC).
The 2005 Mazda MX-5-Miata has double overhead cam (DOHC).
The 2004 Mazda MX-5-Miata has double overhead cam (DOHC).
The 2006 Mazda MX-5-Miata has double overhead cam (DOHC).
The 2010 Mazda MX-5-Miata has double overhead cam (DOHC).
The 2007 Mazda MX-5-Miata has double overhead cam (DOHC).
The 2012 Mazda MX-5-Miata has double overhead cam (DOHC).
The 2002 Mazda MX-5-Miata has double overhead cam (DOHC).
The 2013 Mazda MX-5-Miata has double overhead cam (DOHC).
The 2011 Mazda MX-5-Miata has double overhead cam (DOHC).
The 2003 Mazda MX-5-Miata has double overhead cam (DOHC).