Quote:
Originally Posted by Andy-j.smith6
Hi mate, only going off howitzer drives
Rather than the power/torque curves. Boost comes in quite low but is limited until 4k rpm when its let off its leash. That's with stock ecu. Dreamscience gives you much more boost from low down.
Just my subjective opinion.
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Nah, not just opinion, the torque
is limited up to a certain RPM in the I5T engine to protect the gearbox/driveline. What gears the torque limit is active in and what RPM it stops at is dependent on the car. ST, RS, V70 and so on. I can pretty much guarantee its limited in all the other cars mentioned too. Even some quite dull econo-boxes have torque limits in lower gears.
The I5T engine in the ST has actually got a shed load of torque all the way thro the rev range, but it *feels* like it hasn't as its quite smooth, until the limitation ends!Lots of work done on this over the years, a peaky tune with a rapid ramp up on torque feels a lot faster than a nice smooth torque curve. Even if its not. Some manufacturers play up to this, some don't.
We've even experimented (on autos) using a very snappy abrupt gearshift to make the car feel faster, even tho the abrupt shifts tend to slow the car down (engine gets off boost, wheels spin, suspension bounces around and so on.) 95%+ customers think its faster.