lol this has bin a crazy chat yes to sammo sorry if i confused u
first things first im looking to swap the engine in my micra soon as mate don’t want it now. I was looking at the conversions and whats the best one as this engine is ok but I am getting a few weird buzz noises not had a chance to look.
So im preparing for the worst sounds like bottom end. Not to worried but hey gotta make a back up plan. Any help on this would be great like price on engines witch ones to choose figro or march r ect i would like to run a supercharger on a 1.2 head attached to a presser sensor on the peddle so only kicks in when at 80% throttle save some fuel
here comes the other bit
even if the ports are the same u still need to check everything is as efficient as possible polish port job on some cars will do a ####ing lot its the ports are restrictive.
tdi managed to get a is 200 to 220 bhp turboed running 0.35 bar with the work they did other companies who dont do there maths had to boost it up to 0.6 creating more stress on the engine, there builds went bang with in a year. this one is still running please tell me why do you think this is they all used the same kit and fitting and all dynoed at same power before the kit.
it also using the katana intercooler managed to incress spooling by 32% over hks, greddy, apexi.
Basically I am working on guess work atm but one thing im not sure your right about, you have control over every thing in your engine math is involved every were ask any major race engine builder such as tdi.
They make some of the best and more efficient engines in the country at lest. Spooling times are determined by much air and the presser, going to the inlet manifold passing through intercooler and piping. Then how much effort the engine has to spin the turbine on the hot side of the turbo.
The more drag involved in this presses the longer the spool times. This can go into more depth but im lazzy
also the more you know about temps into combustion chamber as you were the more you know they type of burn urll be getting, length and type of burn, type of spark plug you will need octane of fuel also can change this. get this rong and urll have pinking or pre ignition load of diffrent problems
fuel volume isnt the same for all engines your telling me my mazda 323 gtr runnign 550 cc injectors uprated fuel pump is the same as what would be needed for a march r i think not its determind by how much is needed before and arfter boost this is also ushally tweaked in the ecu or upgraded injectors you only need the extra fuel on how much air is going in hence the air fuel ratio.
as for the 1.2 supercharged there no replacment for displacmnet ushally higher liter even if its a lil bit higher more toqrue That’s my 50 pence worth