have a really short stroke? I mean 187 ft/lbs of torque just doesn't seem like much. What gives?

http://www.modernperformance.com/gm/...altss_dyno.wmv

 

You got it, it has a very short stroke so it can rev faster

 

 

But wouldn't one think that torque is just as important as HP? I mean Honda wrote the book on high hp, low torque. I know a guy here that sold his Integra recently. Nearly 600 whp, but a few ft/lbs short of 400 torque?

Easy way to think of torque vs. hp.

HP= how fast you hit the wall
Torque = How far you go through it

 

The S2000 pumps out 162 ft-lbs (flywheel) from 2.2.
The SS is putting down 187 ft-lbs (wheels) from 2.0.

2.0 liters is not going to generate much torque, due to
physics, but GM is definately handling it better than the
folks over at Honda.

 

is it because its supercharged...?

 

Forced induction will raise torque (just like HP) It all depends on what RPM the boost comes on. Torque is the ability to do work, Horsepower is how fast the work gets done.

Horsepower = (Torque X RPM) / 5252

On my All-Motor 2.0L I made 202hp at the wheels, but "only" 154ft/lbs, because of the RPM at which I made peak HP was high (7200rpm). With my SRT-4 I made 272whp and 294wtq because the powerband started at 3300 rpm.

All Motor 2.0L Dyno-chart: http://www.azchatfield.net/NeonProject/20050316.jpg
SRT-4 Dyno-chart: http://www.azchatfield.net/miscpics/...o_20050413.jpg

 

Don't compare it to the S2000 like it's a good thing. That car might as well have been a motorcycle with it's piddly little torque output. Shouldn't have to rev to 9 grand to beat a minivan in the next lane. I am not impressed at all by the Honda. I do like cars with Start buttons though, hahaha!

 

The Ecotec 2.0 has a:
Bore & stroke (mm): 86.00 x 86.00


*Generally* the longer the stroke , especailly if it is longer than the bore, the more torque an engine makes. The more weight you have to move, the more torque you want to have. It's all a balance of both world. We are right inthe middle.

Torque is great but so it's super high rev'ing HP (like in motorcyles)