i already have a kn filter and exhaust system with a racing cat and a stage1 program i get around 128hp but still want more and need help with choosing a turbo setup that will make a big difference without too many problems can someone help?
It similar over here as well!
Fitting a turbo to the 1.4 is pretty hard to do. As a Honda unit it has a pretty high compression ratio.
You might find that a supercharger is a better option, these are more linear in their power delivery and easier to map for.
The 1.8 engine is based on the 1.4 block, perhaps see if a head swap is viable or go for a rebore? (Techically this still counts as a larger engine though!)
well if its a rover vi shouldnt you be an earlier model of the 1.8vvc what is fount in the later zr160? if so your down on standard power as these have 143bhp standard. listen the easiest and most cost effective way of gaining power is to drop the t series engine in there and your best getting a 220 coupe donor car as this will have all the bits you require apart from just the engine.
when i owned my old mg zr i looked into turbo charging it and trust me its a very expensive route to take and your only going end up with around 200-220bhp so in my eyes its a no brainer to fit the t series which has 197bhp on tap as standard. also remember if fitting the t series is that around 12psi is max boost as the pistons aint the best but a good way of getting them up to around 225-235bhp is by adding a fmic, t28 turbo off a pulsar or 200sx s14 and 270 cams.
Internals and drivetrain are extremely strong and are good for 250bhp+. It's the head that's the weak point. Even the standard Fiat HG is good for 220bhp and over 20psi of boost.If you want to look at how a 1.4 Turbo can be tuned, just take a look at the goold old Punto GT's. I know it's a different engine but it will give you an idea of how far you can take a 1400cc engine. IIRC and dont hold me to this and MA will likely have the right answer but i've not seen many 1.4 Turbo's past 190-200bhp max. The internals can't take super powers.