Can I sharpen instantaneous RPM throttle response for rev match pedal blip ?

[sugarwood]

When I downshift, I do the rev match. I also sometimes try to double clutch. Both require a quick blip of the throttle.
You want that blip to be as fast as possible since you're off the gas and coasting during that time.

For rev match, I usually have to blip the throttle twice.
When I depress the clutch, RPMs instantly fall to the idle range.
A downshift usually means you'll be finding the lower gear at 3000RPM. But, a quick blip does not get me near 3000.
Bottom line is that I blip it twice to get me near 3000.

I would not even notice this in a commuter car, but because of this throttle blip, I would like my throttle to be more responsive.
If I blip too quickly, the RPM's don't instantly respond.... like when flood a car or motorcycle when giving gas, and the engine responds by bogging down (but no where as bad as that)

My idle is smooth and consistent. Car finds idle almost instantly when started. Fires right up and never stalls.
So, my 911 might be working as it was designed, but I would prefer a more crisp instantaneous RPM response from the throttle, if possible.

Other threads have suggested adjusting the mixture. Is that hard on a 3.2 ?



Here are some old threads I found.
Throttle response not what it was

Odd Throttle Response
throttle response?

[Noah930]

Is this a problem you have only in your 911? Or in manual-transmissioned cars in general?

[911pcars]

Depress gas pedal further so engine revs higher. If either double-clutching and/or just rev-matching, the engine revs should end up to be the same revs as if already in the lower gear.

[Bill Douglas]

When you downshift/double the clutch, don't lift off the gas. Have enough foot on the gas pedal that the revs increase by 1,000rpm or whatever while you depress the clutch, but don't do that blippy thing.

[TT Oversteer]

Moronic throttle response is kinda slow. Has it always been this way on your car or a recent change? I found that a Steve Wong chip sharpened up my throttle response and is useful while double clutching.

[DanielDudley]

Lighten your flywheel. Lube your pedal and linkages.

[gliding_serpent]

chip helps response, and check that there is no play in your throttle linkages. they might need adjusting. My throttle is very responsive. Most important, practice. Every car I own is a bit different. Of my cars below in my sig, the 911 is the most responsive.

[bkreigsr]

Lighten the power train's rotating mass.
As suggested, cheapest/easiest, is to start with the flywheel.
Bill K

[NY65912]

Originally Posted by bkreigsr

Lighten the power train's rotating mass.
As suggested, cheapest/easiest, is to start with the flywheel.
Bill K

True, but you might not like it for daily driving.

[sugarwood]

No comments on old threads advising to adjust the mixture?

Originally Posted by bkreigsr

Lighten the power train's rotating mass.
As suggested, cheapest/easiest, is to start with the flywheel.
Bill K

A $500 part and 8 billable labor hours for the engine drop is not in the cards for such a minor thing, which might not even be a thing.

Originally Posted by DanielDudley

Lighten your flywheel. Lube your pedal and linkages.

Ok, I will try lubing the linkages. I'll trace all the linkage back from the pedal as best I can.

Originally Posted by Bill Douglas

When you downshift/double the clutch, don't lift off the gas. Have enough foot on the gas pedal that the revs increase by 1,000rpm or whatever while you depress the clutch, but don't do that blippy thing.

Interesting. I have never heard of this. Is this a common technique?

No comments on old threads advising to adjust the mixture?

[Bill Douglas]

Originally Posted by sugarwood

Is this a common technique?

I don't know if it's common or not. It works well.

[dad911]

Originally Posted by sugarwood

......
Interesting. I have never heard of this. Is this a common technique?
......

Heel-toe. Which in my case is left side of foot on brake, right on gas, rolling the foot to work the gas.

[gliding_serpent]

Buy a new car. If that does not work get a new foot. ;-)

[aston@ultrasw.c]

Adjust the brake linkage to lower the brake pedal a little.

Now when your "heel" hits the throttle it really opens it up!

No charge.

[Elombard]

I dont know that there is a light flywheel for a 3.2 car since it has the trigger for the sensors built in?? Definitely go with the aluminum Pressure plate next time you do the clutch. Made a nice difference on my last 3.0 SC motor and its the same PP on a 3.2 with 915.

[sugarwood]

Originally Posted by pmax

These engines run to redline in an instant without load.

An instant? You must have a very heavy lead foot?
Maybe I need to start stomping the pedal instead of blipping it gingerly.

[911pcars]

All you have to do is press a little further and perhaps longer to get to the correct RPM in synch with the clutch and gear change.

Without load = in neutral. Try it. However, at WOT (wide open throttle), the engine might self-destruct in a few seconds.

Sherwood

[pmax]

Originally Posted by sugarwood

An instant? You must have a very heavy lead foot?
Maybe I need to start stomping the pedal instead of blipping it gingerly.

There's no hesitation or bogging down like you mentioned in your OP. The engine responds instantly in my Carrera and reaches redline faster than you can say 'one th ...'

My suggestion... give it an Italian tuneup. It's free

[masraum]

The 3.2L cars rev very quickly. If your car isn't getting to the right revs, then something is wrong with your car or your technique. My guess is that it's your technique or a combination of the 2.

[gliding_serpent]

Originally Posted by aston@ultrasw.c

Adjust the brake linkage to lower the brake pedal a little.

Now when your "heel" hits the throttle it really opens it up!

No charge.

You just solved my dilemma of my rennline gas pedal being too high for proper heel toe under heavy braking (i.e I want gas to be level with brake when brake is fully depressed). Answer: Adjust the brake pedal linkage. I will read up in my Bentley tonight!