Page 2 of 2
Re: Sprint peak torque and power issue
Posted: Wed Feb 21, 2018 8:03 am
by GrahamFountain
GrahamFountain wrote: ↑Tue Feb 20, 2018 9:34 pm
Galileo wrote: ↑Tue Feb 20, 2018 11:30 am
One of my favourite engines, the ECU restricted to 150bhp VW ABF MK3 Golf GTi engine:
Which I read off the graph as 133 ft lbs - over 3 percent more than the "low torque" Sprint engine gives! And all it takes is twin cams and injection.
Graham
Oops, that should be over 9 percent - got that incorrect figure of 128 ft lbs from the 127 hp at 5200 lodged in what little remains of the brain, and used that instead of the right one.
Re: Sprint peak torque and power issue
Posted: Wed Feb 21, 2018 8:20 am
by GrahamFountain
Galileo wrote: ↑Tue Feb 20, 2018 10:07 pmthe lighter internals and lower inertia makes the 16v keep on delivering more when the 8v runs out of puff.
That and the larger inlet and exhaust port areas allowing better breathing at high mixture velocities - drag being proprtional to the square of air velocity- subsonic, anyway.
It would be interesting to know how the Sprint engine compares for torque with other, especially contemporary, 2L engines. However, it's worth remembering that the effect of torque, in terms of force applied to vehicle is modified by the gearing and wheel size.
Graham