injection everytime provided you have good management and proper intake. EG the touring cars run injection and a std looking manifold ;)
electronic control over a mechanical one and the electronics will always be better suited to the task at hand!
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injection everytime provided you have good management and proper intake. EG the touring cars run injection and a std looking manifold ;)
electronic control over a mechanical one and the electronics will always be better suited to the task at hand!
well if its just basic poke ur after in standard form id have 2 say carb- fuk and mines a 14oo injection[sri corsa source] nippy enough but theres 2 older sr boys that hav had me on a carridgeway run :roll:
the sri corsa engine is 82bhp and the standard carb 1.4 is 72bhp so if u were beat then theres somthing wrong with your driving or your engine
Injection is cheaper and more efficient.Quote:
Originally Posted by Long Live The Nova!
Tbh without providing specific details this is almost as bad as a "whats better, saxo or nova?" post... I'd say it was more down to budget, engine, driver preference etc than just a case of 'whats better'...
the point still stands - injection systems are more efficient, more powerful and more economical than an equivilent carburettor setup
yes injected setups are more expensive, but they are more expensive for a reason
an example is SBD's Carb and TB kits for the 16xe
the carb kit consists of 45 webers and MBE ignition management and they claim 140bhp
the throttle body kit consists of jenveys and mbe management and they claim 160bhp
20bhp and the only real difference is that one setup is injected and one is carbed, the injected setup is far more accurate at fuelling so u get more efficency and more performance - and u pay more for it too
the same applies when comparing the normal tuned port injection systems and stnadrad twinchoke carbs
injection always wins
i agree that injetcion is better, but it costs a lot more, nd costs more when it goes wrong or needs mapping/setting up.
what about the 1.2spi vs 1.2 carb?
and i bet if u stick a 32/34 on an sri engine somehow it would be better than the mpi system.
Yeah carb beats spi all day.Quote:
Originally Posted by Snowface
But spi isn't really proper injection, its stuck between carb and injection, a 1.2mpi, if that could be done, would beat 1.2 carb no doubt.
SRI throttle plate is 55mm
this means that it provides 2374mm2 of area
32/34 has 32mm and 34mm throttle plate
this means it has 803+907= 1710mm2 of area
injection wins again :p
infact u could take the injection throttle body down to 45mm and still have more area than the carb engine
as for the 1.2i vs 1.2carb argument i'd be willing to bet that if u fitted a 1.2i throttle body to a 1.2carb inlet manifold and a 1.2carb head on a 1.2carb exhaust and cam u'd make more power than the carb engine makes
the 1.2i is restricted via its shite cylinder head and the addition of a cat so its not a fair comparison
simple fact - injection wins ;)
oh and it doesnt freeze up and always starts first turn of the key every morning
yeah,
The sri only produces 82bhp with its big valve head though.
I'm sure if you fit a 32/34 to it then it would get more.
Didn't benji get 92bhp just by putting a 1.4sri head on his 1.4 block?
Thats better than 82bhp i'd say.
i do take the fact that injection is more accurate and better economy, just trying to highlight certain circumstances where it may not be.
benjis 92bhp was probably with twin40's
which have about double the throttle area of the 32/34
i would bet money on the fact that if u fitted a 32/34 to a 1300 manifold thats been properly matched to an SE head the SRi system would still make more power assuming NOTHING else changed (ie the cat would need to be removed for the carb and running the injection system without a cat would give more power streight away)
carbs are a CHEAP way of attaining power and thats it
an equivilent spec EFI system will always produce more power than carbs (not neccesarily peak power as u could probably get the peak power VERY close between 40's and tb's but the injection system would have a better low and midrange so would have more power overall)