"blipping" the throttle takes more that a blip?!

[KSC]

Every car I've owned for the past 20+ years has been M/T, so in therory, I know what I'm doing. Normally when downshifting, in all my previous cars, a slight "blip" of the throttle with the side of my foot during heal/toe was all that was needed to rev match, but in this car I'm finding he RPMs fall almost immediately and much, much faster than everything else I'm accustomed to. I literally have to stab the gas peddle to the floor to keep the RPMs high enough for the lower gear. It's driving me crazy!

Every car is different, of course, but is there an specific explaination in regards to our car that is at play here? Maybe it's the shorter gear ratios that's throwing me off?

[whaap]

I never got the "blipping" thing. While the clutch is in and my hand is down shifting a gear, my right foot is bringing the revs up to where I thiink they will want to be when I release the clutch which will be as soon as I'm in the lower gear. It's all very smooth.

[GTB/ZR-1]

This car seems to want more of a blip than others I've had--just speed up your downshift & that'll help the match.

[KSC]

@whaap: Unless you're downright riding the clutch,(and I know you're not) it looks to me like we're doing the same thing, it's just a difference on opinion of the definition of (or the duration of the) "blip".

@GTB: Yeah, I'll get used to it. What's probably throwing me off more is that I'm technically still in a "break-in", so I'm babying the clutch and shifting pretty slow. Still, the drop seems pretty dramatic. Just a tap to the accelerator on my IRL would give me 2-3k. The same tap on the BRZ is <1K.

[BRZfan]

Originally Posted by KSC

@whaap: Unless you're downright riding the clutch,(and I know you're not) it looks to me like we're doing the same thing, it's just a difference on opinion of the definition of (or the duration of the) "blip".

@GTB: Yeah, I'll get used to it. What's probably throwing me off more is that I'm technically still in a "break-in", so I'm babying the clutch and shifting pretty slow. Still, the drop seems pretty dramatic. Just a tap to the accelerator on my IRL would give me 2-3k. The same tap on the BRZ is <1K.

[QUOTE=KSC;757869]@whaap: Unless you're downright riding the clutch,(and I know you're not) it looks to me like we're doing the same thing, it's just a difference on opinion of the definition of (or the duration of the) "blip".

I believe WHAAP is describing an entirely different procedure. A 'blip', at least to me, is a short, quick depressing of the accelerator pedal. WHAAP's description does not include the 'blip' but is merely matching the engine revs to the speed he wants to get to when changing gears.
For instance, when going to a higher gear he would lower engine revs, when going to a lower gear he would increase the engine revs. It may be a slower gear change but he may not be in a racing mode.

[chadstyle]

I've noticed this too... I double clutch my downshifts but it does require more than a "blip".. If I'm around 5500 in 4th I literally have to bring it up to redline when I blip the throttle on the downshift. I double clutch really fast but if you're slow at all it doesn't work out well on the FA20. I've learned that the more aggressive you drive this car, the more rewarding it is. It does seem to loosen up a little after a couple k on the odo but not much.

[leon78]

light weight pully

/thread

[Foobar]

I think whaapis describing a simple downshift whereas KSC is describing a downshift while braking since he mentions heel/toe and WHAAP mentions his right foot on the accelerator (nothing about the brake).

In any case, KSC - you'll get used to it. There seems to be less angular momentum maintained by the drivetrain when you let off the gas on this car, and if you get lightweight pulleys, it'll be even more pronounced.

I do find myself having to really time it right and apply the exact pressure needed whereas in previous MT cars (Honda/Mitsu/Jeep) it could be manhandled with less precision.

[Foobar]

Originally Posted by leon78

light weight pully

/thread

Could actually make it worse, since a lightweight pulley will conserve less angular momentum. Yes, it spins up faster, but it also drops faster.

[Fizz]

Get racerom with the downshift rev match function....

[whaap]

Originally Posted by Foobar

I think whaapis describing a simple downshift whereas KSC is describing a downshift while braking since he mentions heel/toe and WHAAP mentions his right foot on the accelerator (nothing about the brake).

True. While I know how to heel/toe I don't while driving on the street/highway. I will down shift and get the attitude of the car where I want it before I enter a turn. I guess I learned that from many years of riding motorcycles.

[Foobar]

Originally Posted by whaap

True. While I know how to heel/toe I don't while driving on the street/highway. I will down shift and get the attitude of the car where I want it before I enter a turn. I guess I learned that from many years of riding motorcycles.

I do the same. Some autocross guys prefer to keep their heel/toe method consistent on road and on track, but since I never track my car, and since I also had to learn how to shift safely on motorcycles, I do it your way.

[Suffa]

I know the exact feeling, it's like the pedal has some lag in it.

[OrbitalEllipses]

Originally Posted by leon78

light weight pully

/thread

I'd rather have a lightweight flywheel than a pulley. I have noticed the engine is slow to rev when blipping; sometimes I just don't give it enough gas on the downshift. Annoying, but like I said a lightweight flywheel would have far more impact than a pulley.

As far as shifting, you do want to shift before the turn. Shifting mid-turn is a no-no so getting it all done before the turn is standard. Especially in RWD cars, from what I understand. Braking, shifting, and turning at the same time requests more from the tires than just turning.