MR TURBO 2 U
guy's a few things that need to be realised to create power are:Originally Posted by Tweak
Nope, because boosting a 6 nets more power and torque without straining the block as much
. Hence displacement being a factor in the overall end game.pa...how can this be true? eg: to make 500 hp you need lets say 500psi pushing on the piston in the cylinder this does not change between fi & na in the said engine so to make 500hp it takes same amount of air and fuel to create the same cylinder preasures does it not?
But I digress...pa... size does matter!
pa.... digress [daɪˈgrɛs]
1. to depart from the main subject in speech or writing
2. to wander from one's path or main direction
comon for you is it not?strike that don't want a war!
Someone said "there is no replacement for displacement". Well actually there is.
At 100% efficiency for instance a 2.0 boosted engine at 14.6 psi (+ atmosphere) is in effect a NA 4.0 engine. Actually larger because a NA 4.0 is not 100% efficient. Therefore, there IS in fact a replacement for displacement, it's called FI.as much as i would love to agree there is not!!!:wtc:
But if they are both boosted to the same extent, well of course the larger displacement engine will make more power.pa... well both are not 100% efficient hence the 1.75 multiplication rule in most racing classes! but agree with you that its much easier to to achieve in an fi car than an na car!!!
pa....sorry again it also comes down to engine design! just as in an n/a car the better the engine flows the more power you make!
1, displacement swept or forced
4.0l displacement swept or forced is just that 4.0 where the f/i gets its advantage is mechanical advantage less loss due to smaller lighter parts (this is where the above quote by my fellow esteemed member is wrong!!!)
2, charge temp / oxygen content
the cooler the temp the more oxygen content and the more you can rapidly expand this charge = the more burning efficiency = more power!
3, fuel btu, flash rate& octane
the more btu the more expansion, the quicker the flash rate the less advance require the less mechanical loss, the higher the octane the higher the comp or boost all resulting in = better burning efficiency better power!
hope this clears things up!!!