A
AJ4
Guest
in a nutshell... the theory is big power needs a big turbo which means lots of lag and I hate lag.
You spend 95% of your time driving at less then 5000 rpm where there is no power. The charger gives constant boost pretty much from idle, so you have full boost from say 2500 to 7000 rpm instead of it peaking up high in the rev range. So even driving round town at 3000 rpm, you could be at full boost with instant throttle response
The downside is that your peak power is lower than a turbo, as the charger takes power to drive it ( about 60 bhp at full whack ). But you more than make that up with all the low down torque. Some people think the difference isn't even that great, as having a dity big turbo in the exhaust path causes a major restriction to airflow which probably wastes nearly as much power as running a charger would... Fortunately, God was kind enough to bestow me with a huuuge penis, so I don't really care what the pub bhp figure is anyway My target is 300bhp with 600 ft/lb of torque. The charger is capable of it, it remains to be seen if the engine is :lol:
For hill climbs, short sprints and 'urban rally ', a supercharger will usually beat a turbocharger because of zero lag and instant throttle response. Big turbos are only really suited to sprint events with long straights and drag events, for everything 'short' the charger is usually better. A charger will usually perform better on a handling course event, if you fluff a gear change with a turbo you've lost all your boost and momentum, but the charger is there all the time.
Think 'driving from one side of my town to the other through all the council estates and mini roundabouts as fast as possible', thats supercharger territory
There is also a bypass valve fitted to the supercharger, so that at very low loads ( like motorway cruising ), air is bypassed around the charger and it doesn't 'drag' on the engine. It uses less than one bhp typically when doing this. Then as soon as you plant your foot on the accelerator, the bypass snaps shut and you go straight to full boost...
And the end of the day its down to personal preference. I dont like turbo cars, I'd much rather have a car that has a very broad power range that is usuable in daily driving, than a peak power that I would only reach once in a blue moon.
You spend 95% of your time driving at less then 5000 rpm where there is no power. The charger gives constant boost pretty much from idle, so you have full boost from say 2500 to 7000 rpm instead of it peaking up high in the rev range. So even driving round town at 3000 rpm, you could be at full boost with instant throttle response
The downside is that your peak power is lower than a turbo, as the charger takes power to drive it ( about 60 bhp at full whack ). But you more than make that up with all the low down torque. Some people think the difference isn't even that great, as having a dity big turbo in the exhaust path causes a major restriction to airflow which probably wastes nearly as much power as running a charger would... Fortunately, God was kind enough to bestow me with a huuuge penis, so I don't really care what the pub bhp figure is anyway My target is 300bhp with 600 ft/lb of torque. The charger is capable of it, it remains to be seen if the engine is :lol:
For hill climbs, short sprints and 'urban rally ', a supercharger will usually beat a turbocharger because of zero lag and instant throttle response. Big turbos are only really suited to sprint events with long straights and drag events, for everything 'short' the charger is usually better. A charger will usually perform better on a handling course event, if you fluff a gear change with a turbo you've lost all your boost and momentum, but the charger is there all the time.
Think 'driving from one side of my town to the other through all the council estates and mini roundabouts as fast as possible', thats supercharger territory
There is also a bypass valve fitted to the supercharger, so that at very low loads ( like motorway cruising ), air is bypassed around the charger and it doesn't 'drag' on the engine. It uses less than one bhp typically when doing this. Then as soon as you plant your foot on the accelerator, the bypass snaps shut and you go straight to full boost...
And the end of the day its down to personal preference. I dont like turbo cars, I'd much rather have a car that has a very broad power range that is usuable in daily driving, than a peak power that I would only reach once in a blue moon.