check my project:
https://www.fiatcoupeclub.org/forum...e-95-broom-yellow-2-0-16v-na#Post1596002what I´ve found over the years dealing with two modded 16v NA engines (one in coupe, second in tipo, slightly different setups)
this are the basic mod:
1) exhaust - nice... 55-60mm pipe, 2 straightrough silencers, sport- 100cpsi cat of biggest size u can fit or decat if u want
2) airbox modification (buttom from tubo+6 holes) + stock, paper filter
-only these 2 mods allowed me to to fly trough 1/4 mile in 15,8s constantly... not bad..we are in teritory of stock 16VT
further , still bolt on and budget steps:
3) throttle body -remove the step in upper part of TB, which causes small restriction during WOT
4) remove balance shaft belt - engine wil rev more freely
5) fc performance chip
with this u should be at the same level like stok 16VT if your engine was well maintained (has good compression, oil pressure etc)
engine(rocker) cover down job:
Cams : from my point of view, the Cat cams set u choose will not give u much noticable difference over the stock set, or Tipo 107kW intake cam + 102kW /stock exhaust ..only few kW/Nm up with good driveability and maybe powerband little bit higher (like 16V 107kW tipo - 4500-5000rpm max torque -6300-6500 max power)
I would go for complete head (+intake manifold)work +Tipo 107kW intake cam which u can purchase chepaer thas set of cat cams:)
This with propper mapping will give u best results...
and as was mentioned - lightened flywheel will transform the car
Gearbox - no need to change gearing...