10-20 more ft-lbs of torque?

[Swoboda]

I've reviewed the many posts about new/replacement chips for my 1985 Carrera, but I have a simple question:

How much of a difference is another 10-20 ft-lbs of torque?

I'm not chasing horsepower, and I've read about the "butt dyno" yielding positive results.

I guess, put another way, will I really notice an increased push with 10-20 more ft-lbs of torque in normal, sprited (much less than WOT) driving?

Thanks in advance.

(I am considering a Steve Wong chip. Currently, it would plug into my all stock U.S. motor and exhaust system.)

[wildcat077]

Not sure about when the torque would kick in but as compared to stock my 89 SW chipped 911 really wakes up around 5000 rpms until i let off around 6500 or so and shift gears ...
Well worth the investment in my opinion !

Cheers !
Phil

[Gustyones]

I have a 1985 model as well which I chipped with Steve Wong's 93 octane. The difference was certainly noticeable. The power comes on earler and it rev's much quicker to redline. I would say it was certainly worth the money.

[stlrj]

Originally Posted by Swoboda

I guess, put another way, will I really notice an increased push with 10-20 more ft-lbs of torque in normal, sprited (much less than WOT) driving?

It all depends where they put the extra torque. If they inject it off the line where it is needed most, you will definitely feel it. If, on the other hand, it comes in at 5,000 rpm, it becomes more academic.

Cheers,

Joe

[chris_seven]

Increasing torque will always increase horsepower so we are really discussing the shape of the power curve.

Quoting peak torque desn't really tell you anything about vehicle performance although the gap between peak torque and peak horsepowr is a good guide to tractability.

If the torque increase is restricted to the low end of the rev range then the car will be more driveable when cruising around but may not give any performance gain at the top end.

If the torque gain is at the top end then the horsepower gain will be significant and will aid acceleration and should be measurable against the clock.

Peak power will always win the battle if weight and gearing are constants.

[stlrj]

Originally Posted by chris_seven

If the torque increase is restricted to the low end of the rev range then the car will be more driveable when cruising around but may not give any performance gain at the top end.

The "low end" also happens to be the range where the butt dyno is most sensitive. Coincidence?