[ POLL ] APR Fuel Pump or OEM s3 Intercooler?
- Thread starter MitraShark
- Start date
Totally agree, fuel pump is the best mod you could consider of the two at the moment. I've seen on RR graphs and felt thrugh bum dyno an increase of 40-50hp in my midrange with a similar increase in torque too.
The stock fuel pump is less efficient in the midrange. As a result the tuners have to allow for this otherwise you get the dreaded fuel cutoff. This means the cars are much flatter in powerband than they could be based on the fuel supply driven by the stock pump.
With an upgraded pump, you get back that fuel pressure where you need it, in the midrange.
Though top headline figures won't alter much, as the stock pump is ok near the top of the rev band. But instead of having say 250-260hp at 4500rpm rising to 300ish at peak revs with a stock pump. You'll now see something more like 300hp flat from 4500rpm all the way to the limiter or sometimes a bit more with an upgraded pump.
Remember mid range is where you spend most of your time too. How often are you bouncing the car off the limiter. how useful is 300+hp at 6000rpm?
You want that power where you'll use it.
The stock fuel pump is less efficient in the midrange. As a result the tuners have to allow for this otherwise you get the dreaded fuel cutoff. This means the cars are much flatter in powerband than they could be based on the fuel supply driven by the stock pump.
With an upgraded pump, you get back that fuel pressure where you need it, in the midrange.
Though top headline figures won't alter much, as the stock pump is ok near the top of the rev band. But instead of having say 250-260hp at 4500rpm rising to 300ish at peak revs with a stock pump. You'll now see something more like 300hp flat from 4500rpm all the way to the limiter or sometimes a bit more with an upgraded pump.
Remember mid range is where you spend most of your time too. How often are you bouncing the car off the limiter. how useful is 300+hp at 6000rpm?
You want that power where you'll use it.
Would a Forge Twintercooler running in parallel to the Leon intercooler be a better option than an S3 I/C on its own if MitraShark decided to go that way later on?
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