Would need to know the make/ model/year for a more accurate answer, but.
In general they range from 74hp( skoda Octavia 1.4)- up to the 220hp N/A type R/S Honda or the FQ400 Mitsubishi EVOVIII turboed 2.0L at 405hp. Most Normally aspirated 16v I-4 are in the 120-200hp range.
http://www.protegefaq.net/
150 hp
the single cam motor has about 100 hp abd the dohc has about 125 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.
How much horsepower is 439
2.0 SOHC SPI-----110 HP-----Standard Escort 2.0 DOHC----------130 HP----ZX2
If is stock around 175 to 190 . But if you have deep packets I'll say as much as you want to spend .
The 92 interceptor 4.6 DOHC puts out 267 hp.
A SOHC is better for gas mileage, because it uses less gas, and has 130 hp. A DOHC is worse for gas mileage, but has 150 hp.
* 18RG - dohc, 9.7:1 compression ratio, Toyota cylinder head, no smog hardware and 140 hp. Very rare and desirable. * 18RGR - dohc, 9.2:1 compression, Toyota head, air injection, and EGR. Rated at 130 hp. * 18RGRU - dohc, Yamaha head, 9.2:1 compression, complex smog gear. 125 hp. * 18RGU - dohc, Yamaha head, 9.2:1 compression, non-rebuildable carburetors, smog hardware and a throwaway electronic ignition. This 120-hp engine appears to be most frequently encountered. * 18RGEU - dohc, Yamaha head, 8.7:1 compression and electronic fuel injection. Said to develop 120 hp.
The 1199cc, liquid-cooled, 4-stroke 2-cylinder DOHC has a horsepower of 108.5 hp at 7,250 rpm.
222 hp